Details
Classic Porsche 911 - Surveys owners, repair and operation of 911 news stories and page model, sales and much more in ou...
Classic Porsche 911 - Surveys owners, repair and operation of 911 news stories and page model, sales and much more in our club fans and fans of the legendary series cars Porsche 911. All about 911-901, 930, 964, 993, 996 and new era 997 and 991-series.

If you're buying a used 911 as an investment, send me your address so that I can arrange a visit from the boys. Investors who never drive their 911s bring a word to mind. That word is 'pimp'. As 911 diehards, the boys don't like pimps, so when they arrive, make sure your engine is still warm, the exhaust system is making that tinkling noise and there is evidence in your tyres of some recently accomplished brisk cornering.

All 911s, from 1963 to this afternoon, share a characteristic 911 'feel', but that varies greatly in degree. Bog-standard used Coupes from the late 1970s or 1980s once delivered the goods for sensible money but they might demand some restoration work now.

Choosing a 911 is such a very personal matter. Just go for what you really want, get the best straight car you can find and look after it. Reliability is legendary but repairs can be costly.

My choice is currently the 993 Carrera 2 Coupe of 1993-98. Its predecessor, the 964, was respectable but dull. The 993's different, agile feel makes it terrific to drive and good ones go for less than £30,000 - this week, anyway.
It's the last air-cooled 911 model but so what? Later models lost nothing by being water-cooled. No, pick a 993 for its exhilarating agility, and its price.

A friend of mine paid £26,000 for a superb 1994 993 Carrera 2 in late 2013. He loves it, whether he's tootling about the shops or on a 300-mile blast through the remote Highlands of Scotland, where it truly excels. And that's no more than it deserves.

Porsche 911 Carrera RS
1973 // £500,000
The eternally great, ultimate development of the original 911 concept, it combines high performance and low weight with inch-perfect precision handling. Superb but the price of this model now, sir, is officially‘through the roof'. If you buy one, promise us you will use it.

On an autumn day in 1972 the salesman from Porsche GB came to visit our house. 'We're making a special car,' he told my father. 'Only 200 will be built, and we're offering them to our best clients first as demand is sure to be strong.' They built more than 1500 in the end, and demand was so great that, instead of management having to use them as company cars to use up unsold stock as expected, Porsche sold out the first batch of 500 immediately and had to build two more series.

Why the fuss? Because the RS is so much more than the sum of its parts. It was derived from the relatively humble 2.4S, but with flared rear arches and wider wheels (a 911 first), bored-out engine (at 2.7 litres Porsche's biggest road car motor to date), a rear spoiler (another first, and not just for Porsche, so initially illegal in some markets) and, last but not least, weight-loss that took the RS under the magic 1000kg in 'lightweight' trim.
The result: 150mph, 0-60mph in 5.0sec, handling to die for (and you would if you lifted off mid-comer) and a string of victories on every continent including rallies, Le Mans and the Targa Florio. Oh, and you can drive it to the shops.

Mine's been in the family for 42 years and has never once 'failed to proceed'. Beat that, Enzo...


Porsche 911 GT3 (997-series, generation II)
2009-12 // £80,000-120,000
The 997-series Generation II cars were terrific in their time and the naturally aspirated 997 GT3 was a hugely powerful, seriously fabulous machine, subtly better in fast corners than previous GT3 models.
A classic in waiting - bound to be a sound long-term investment.

Any brand new 911
2015 // From around £75,000
Admit it, they are absolutely brilliant. If you don’t want one, you should. Buy it, keep it, service it properly. One day, it will be a classic but, meanwhile, enjoy a few happy decades driving it. The best of all worlds.
More
Link copied to your clipboard
Items tagged with #KKK
Pinned Items
Recent Activities
  • TIME MACHINES

    When 911&PW launched in 1990, the lead story in the news pages was the impending arrival of the 964 Turbo, the pinnacle of the 911 range. In order to assess the passage of 25 years of 911 development, we pitched the 964 Turbo against the current 991 Turbo. You can’t stop the 911 and you can’t stop progress.

    Porsche 911 & PW 25th Anniversary Happy Birthday to us! 25-years ago the 964 Turbo was the top dog. We pitch it against the current 991. What better way to illustrate 25-years of #Porsche progress, and 25-years of 911&PW, than by pitching the two top dog 911s of their respective eras. Enter the 964 Turbo and the 991 Turbo for an evolutionary, time travelling showdown.

    “The past is a foreign country – they do things differently there.” An overused quote (the opening line of LP Hartley’s #1953 novel, The Go Between), but overused for a reason, that being its eloquence and descriptive power. Does any other line sum up the power of progress quite as well? I don’t think so.

    In these days of rapid and rampant progress, subtracting 25-years from 2015 to arrive at 1990 appears to be just a short hop back in time, but truly it was a different time. Imagine going back there now? When 911 & Porsche World launched in April 1990, as a finger in the air exercise of publishing, the only way to gauge whether there would be an audience for the title was by simply doing it and putting it on the shelves of WHSmith and a few specialist Porsche dealers.

    The brief was simple: To cover all things Porsche and to represent the interest and passion of all things Porsche for owners and enthusiasts. In a world devoid of any form of digital media and communication, that is how things worked. Paper, words and pictures. Copy was typed, pictures were committed to film, pages were stuck together with glue. Typesetters and compositers turned it into reality. What we can do now in seconds, used to take days. 1990 might have seemed all very modern and exciting, but if time travel were possible, anyone from the ’60s would have been able to adapt very quickly indeed. Hell, plenty of cars still had carburettors and points!

    Inevitably 25-years of 911&PW, for its eclecticism, also reads like a Porsche timeline from its launch to now. We’ve followed the fortunes of the marque from near bust to a sonic fiscal boom and back again. We’ve followed each new model and have chronicled five generations of 911 from the 964 to the 991, or exactly 25-years of the 911’s timeline. No, the 911 isn’t the be all and end all of the magazine, but its constant presence creates an essential point of reference, just as it does for Porsche the company. No other sports car has been developed to the same degree as the 911, with each generation exploiting the technology of the time. For the first 25-years progress was pretty sedate, but the following 25-years, the 25-years that this magazine has been around, like the rest of the technological world, it’s been rapid indeed, thanks largely to a digital revolution that has left no part of life untouched.

    So how best to illustrate this in our own little world? Well, if the 911 is the constant by which the magazine is measured, then why not gather the ultimate 911 of 1990 and wind up the KKK turbo for a bit of time travel and propel into its own future to meet its 2015 future self. Sure there’s a void in between, but all the better to accentuate the massive progress of the past 25-years. We’re going to make one giant leap, rather than a number of incremental steps. Hold on!


    Fittingly, the ultimate 911 of 1990 was announced in the news pages of the very first issue of 911&PW. “911 Turbo for the nineties,” was how we introduced the 964 Turbo. Following hot on the heels of the normally aspirated #Porsche-964-C2 and C4, the Turbo featured the same aero front and rear bumper treatment and side skirts, plus 959-style five spoke ‘Cup’ wheels, that temporarily seemed so modern compared with the Fuchs of old. And big too. At 17 inches, they seemed huge. Aero wing mirrors were another improvement, but ultimately there was a feeling that the 964 Turbo wasn’t much of a leap forward over the 930 Turbo and it stuck with the 2WD drive layout, despite the 964 range being launched with a flagship 4WD version. Put it this way, there wasn’t much sense of this containing a great deal in the way of trickle down technology from the 959, which was kind of surprising looking back now, or even then, but we’ll come to that.

    Whereas the normally aspirated 964 got what were essentially all new 3.6-litre engines, with twin plug heads, the Turbo rather made do with the 930 Turbo’s 3.3- litre engine and an extra 20bhp, bringing it up to a not inconsiderable 320bhp, thanks to its larger #KKK turbo, larger intercooler, #Bosch-K-Jetronic injection and revised air intake system. Like its 964 siblings, the Turbo also got coil spring suspension all round, with MacPherson struts at the front with aluminium transverse links and semitrailing arms at the rear.

    The modernising front and rear bumper treatment deserves more than just a throwaway reference. Without having to do much to the main body shell, Porsche used the front and rear aprons to dramatic aerodynamic effect, but unlike the normally aspirated C2 and C4, the Turbo didn’t get the retractable rear spoiler, but remained faithful to the Turbo defining ‘tea tray’ lid, which rather accentuated its connection with the 930, rather than the rest of the 964 range.

    There was, then, a feeling that the 964 Turbo was something of an afterthought compared with the base 964s, which were clearly a leap forward from the G-Series cars that they replaced in terms of sophistication and modernity. But that was then and this is now and 25-years into the future the 964 Turbo has rather come of age. After years in the doldrums it has been reinvented as the last of the old school, rear drive only 911 Turbos, and as such it commands a price above the 930 Turbo. And of course because it’s an air-cooled 911, that price is not inconsiderable.

    Above all the 964 Turbo is a product of its time and was constrained by the engineering solutions of the day. It is very much ‘mechanical.’ Much as computers had little to do with the day-to-day production of 911&PW, they had very little to do with the development of the 964, and nor did the 964 have much in the way of on board computing power. Take out the Bosch ECU and you’ll find a few RAM chips to control the fuelling and ignition, with about as much operating power as a 2015 cordless phone. There is also what Porsche optimistically describe as an ‘onboard computer,’ which features an LED screen in the bottom centre of the rev counter, which gives basic distance travelled info, outside temp and boost pressure. There is an equivalent in the 991 Turbo, which will even display Gforce and the engine’s torque curve.

    But let’s not sneer. Even if it were possible to convey such info to the driver in 1990, it probably wouldn’t have crossed the engineers’ minds. Why would it? Twenty-five years on it’s just a bit of tech froth, that would only appeal to teenagers and Nissan Skyline drivers. But that’s progress for you and the endless digital revolution, that makes all this stuff possible, some of empowering, essential usefulness, some, like an onboard torque curve readout just a gimic.

    On board the 964 is a familiar air-cooled place. The interior of this immaculate example is era defining light grey. The dash is essentially a modernised version of the 1963 original, while the prominent centre console is about the only 959 feature to have made it into the 964 Turbo, and sits on top of the redundant transmission tunnel. The deep bolstered Sports seats are fabulously comfy and offer a modicum of electric adjustability, while the four-spoke ‘lozenge’ centred steering wheel is fixed in all plains. The pedals, naturally, still pivot from the floor and are offset on this right-hooker. For 911 pilots of old, it’s all part of the package, here in the modern world you objectively wonder as to how some of the 911’s quirky features could have lasted for 25 years and beyond. Even in 1990 this essentially ‘modernised’ 911 must have felt rather oldfashioned compared to the competition like the #Honda-NSX , or the #Ferrari-348 (actually the 348 wasn’t a prancing horse, but more a lame donkey, with a gearbox full of rubble. The NSX, however, was a game-changer, held back only by its badge). But that, as we know, is all part of the 911 charm and mystique. If you have to ask, then clearly you don’t understand. Or is that just making a virtue out of a necessity?

    But it could, and should have been so much different. Of course the #Porsche-959 hadn’t been forgotten. The car we could have been driving today, if everything had gone to plan, and Porsche hadn’t gone though one of its many financial blips, was called the 969 and was clearly the son of the 959, with a 370bhp 3.5-litre twin turbo engine (other engines were considered, like the V8 Indy car engine – seriously), with water-cooled four-valve cylinder heads and a sophisticated four-wheel drive system hooked up to Porsche’s own PDK transmission, or a manual ’box if the buyer preferred. The 969 was due for a #1991 launch and would happily hold 185mph around the Nardo bowl. It featured the sloped back headlights of the 959 and hoop rear wing. Sixteen prototypes were built. It would have been the pinnacle of the #Porsche-911 range and in all likelihood another form of Turbo would have slotted in underneath.

    Internal machinations and costs killed the #Porsche-969 . Too expensive to build, technology not quite there yet, with a potential price tag that could have been beyond market forces and a financial crisis within Porsche, and on top of that the 969 would have launched straight into the early ’90s recession.

    So that’s what could have been. It’s what the #993 Turbo vaguely became (twin turbos, four-wheel drive and a lot of the 969’s styling cues) and certainly what the #996 Turbo achieved. But the 964 Turbo? Yes, it really was something of a rush job, stop-gap model, particularly in its first 930-engined based iteration.

    So, it would have been great to have been driving the stillborn #969 , and it would certainly have had rather more of a connection with the 991 Turbo, but we’re not, so let’s just get the 964 Turbo fired up. Who’s got the key?

    ‘Fired up’ is a bit of a misnomer. Typically it ‘churns’ into life and settles into a soft, muted idle, the turbo and the new fangled catalytic converter acting as effective silencers. The 964’s new power steering takes the heft out of steering and the relatively new G50 ’box is an ally in the soon to be forgotten and interactive art of changing gear. Those floor-mounted pedals might feel weird, but the clutch is light enough and the throttle pedal allows full foot coverage. Lifting your footing completely off the footwell to operate the brake is, well, just one of those 911 idiosyncrasies.


    Off boost, below 3000rpm, it feels soft and lethargic. Get the big old turbo spinning and the fuel pumping and it picks itself up with a hard-edged vigour. Unlike some old supercars of the era, the 964 Turbo isn’t going to get blown away by a modern turbo diesel. A modern hot hatch maybe (a Golf R would humiliate it), but on boost the 964 Turbo feels like it’s got every one of those 320 horses working, although typically tall gearing (80mph in second) will see it easily drop off boost. It’s a feeling that’s accentuated by the very stiff suspension, that has the Turbo leaping about these not entirely flat North Yorkshire moors. It’s not 964 RS stiff, but it’s not far off, a product of the new to the 964 coil spring suspension, which doesn’t have quite the sense of detachment from the road surface that the G-Series cars did, with their torsion bars. The big 17in wheels and 50 profile tyres don’t help either, but those big wheels do allow massive – for 1990 – 333mm front discs and hefty four-pot calipers, that even now haul the Turbo up with impressive retardation.

    In the corners and the 964 is a natural understeerer. It has to be bullied and worked to get to the apex, but then get the boost right and it launches itself out with that characteristic rear-end squat, and charges off with a turbine howl. If the corners are coming thick and fast, then be prepared to work very hard. There’s massive amounts of grip, but the Turbo doesn’t much like changing direction, so a lift at the right moment will activate the tail, but that’s a bit like juggling chainsaws. Get it wrong and it will hurt.

    In today’s context it feels old-fashioned, but in an endearing sort of way. It’s got old school Turbo twitches and tendencies. You absolutely know it’s there, influencing the whole demeanour of the car. It’s either on or off. Even in 1990 it was a bit of an animal and not exactly the car that was expected. Uncouth and unsophisticated, something of a thug. But then as we know now (and what wasn’t appreciated at the time), this wasn’t the Turbo that Porsche had intended to bring to the market.

    And so to the 991 Turbo. Are we travelling backward in time here or forward? Well forward obviously, but so mightily fast is the 991, and so comprehensively evolved and sophisticated, that an ability to time travel back to 1990 for a look at its predecessor, wouldn’t be a surprise. I’m sure if you were delve in to sat nav settings the time travel option would appear. Just tap in North Yorkshire Moors 1990, and in Terminator style the 991 would appear in a frisson of pulsing, arcing electricity to scare the sheep.

    The 991 Turbo is progress on a massive scale, made possible by the advances in digital and engineering technology, but mainly by the former. Its whole build and design was conceived electronically, from the design process to the build process where engineering tolerances are micro managed by computer-controlled machinery. The integration of computer and mechanical is almost cyborg in nature. The machines are taking over and in the shape of the 991 Turbo, and much more in modern life, it’s very much true. We live in a time when a tiny pocket device, originally conceived to simply make phone calls, puts every conceivable piece of information, book, piece of music and visual image within instant reach. Imagine predicting that in 1990?

    It’s only when you jump the void from #1990 to #2015 that you realise just how extraordinary the 991 Turbo is, and how we now take all this stuff for granted. Maybe we will refuse to be astonished until cars finally shed their wheels and we start to hover everywhere, or they simply drive themselves, but the only thing that connects the 991 Turbo with the 964 Turbo is the 911 designation, its evolutionary silhouette, its engine location and the fact that it’s got four wheels and a steering wheel and still runs entirely on petrol and, come the next generation of #Porsche-911 , we can certainly expect some form of electric assistance.


    There are many things that astound about the 991 Turbo, but the most beguiling and frankly mind blowing facet is just how ludicrously easy it is to make it go fast. Teleport the 964 Turbo owner of 1990 forward 25-years and stick them in the driver’s seat of the 991. They would be able to grasp the concept of putting the PDK-only transmission into drive, the rest is purely turning the wheel and pressing the go pedal. From that point on, the machine takes over. It will take a little while for 1990 911 Turbo man to actually keep up with what’s going on, such is the speed at which the modern Turbo responds to instruction, and that’s before you’ve employed any of the go faster functionality. Best save Sports Plus and Launch Control for another time.

    Compared with its 25-year-old ancestor, the 991 defies any semblance of physics. It shouldn’t be able to corner like it does, it shouldn’t be able to change direction like it does. It does so because it has a raft of electro mechanical components that look conventional, but are anything but. Dampers? Yes, they look like dampers, but they’re controlled by electro magnetic valves. The roll bars? They’re electronically controlled too, stiffening to support the side of the car that needs it. The centre diff? Electro magnetic again to deliver power and traction back and forth in a nano second. The rear end steers itself, and Torque Vectoring speeds up the inside rear wheel to facilitate turn in. Hell, even the engine mounts clamp the engine tight when the going gets twisty. And all that’s before you even start to consider the traction and stability management controls and the small matter of nearly 600bhp, not far off twice the power of the 964 Turbo.

    The 991 Turbo is fast, but it’s artificially fast. Like a modern fighter would fall out of the sky without its flight control systems, so modern 991 Turbo would fall off the road without all its electronic systems. They are what enables it to function and do the mind altering stuff that it’s so capable of, in the background, making modern 911 Turbo man look like a complete hero.

    But that’s progress for you and there’s no going back. The 964 Turbo is like a warning from the past as to how these things used to be. It’s a quaint reminder of the pre digital age. A Sunday toy for a bit of heavy-duty mechanical interaction. The 991 Turbo is a thrilling, flying on the ground, 21st Century marvel and a fitting pinnacle of where the 911 is right now, and I know which one I’d take.


    THANKS: Sincere thanks to all at Specialist Cars of Malton for the loan of the #964 Turbo, which is currently for sale. Tel: 01653 697722 specialistcarsltd.co.uk

    The 991 Turbo would fall off the road without all its electronic systems.

    Far left: The launch of the 964 Turbo as we covered it in the first issue of 911&PW in 1990. Left: What could have been. The sole surviving 969 Turbo prototype, a clear descendant of the 959, but canned for financial reasons.

    Direction changes and grip levels in the 991 Turbo border on extraordinary. It has a raft of technological solutions geared entirely to getting it round corners as fast as possible.

    Interior is similar to 911s of old, with the curve of the dashboard and placement of the air vents all following #911 tradition. #PDK sevenspeed gearbox is the command centre, with its three modes: Normal, Sport and Sport Plus.

    Right: The #Porsche-991 Turbo is bristling with detail. Wheels are massive 20in, diamond polished cross-spokes, with centre lock fixings. Equally huge six-pot brake calipers clamp on to Porsche PCCB discs. Braking is awesome in the true sense of the word.

    Unlike some old supercars of the era, the #Porsche-964 Turbo isn’t going get blown away by a modern turbodiesel.

    Car #Porsche-911-Turbo-S-991
    Model tested: #Porsche-991-Turbo-S
    Engine: 3800cc, flat-six DOHC, twin turbo
    Transmission: Four-wheel drive, seven-speed PDK
    Body style: Coupe
    Suspension: MacPherson struts (f), multi-link rear
    Top speed: 198mph
    0-62mph 2.9 secs
    Power: 552bhp at 6500rpm

    Pale grey interior is very early ’90s. Deep bolstered ‘Sports’ seats are among the best Porsche have ever made. Cockpit feels tight and compact, but visibility is excellent.

    Even in #1990 this essentially ‘modernised’ 911 must have felt rather old fashioned compared to the competiton.

    964 Turbo looks terrific in white, like a refugee racer on the road. New front and rear aprons, plus side skirts and aero mirrors were a styling success. Tea tray rear wing a 911 Turbo trademark.

    Car #Porsche-911-Turbo-964
    Model tested: #Porsche-964-Turbo
    Engine: 3300cc, flat-six DOHC, single turbo
    Transmission: Rear-wheel drive, five-speed manual
    Body style: Coupe
    Suspension: MacPherson struts front and rear
    Top speed: 167mph
    0-62mph 5.0 secs
    Power: 322bhp at 5750rpm

    Damp, cold North Yorkshire moors roads focus the mind in an old school 911 Turbo, with absolutely no driver aids whatsoever. Not that the 964 feels anything other than grippy and competent.

    Left: Distinctive and huge intercooler sits on top of the 964’s 3.3-litre, air-cooled flat-six. Power is 320bhp. Clocks are resolutely analogue, while four-pot alloy calipers were considered huge for 1990.
    Post is under moderation
    Stream item published successfully. Item will now be visible on your stream.
  • WINNING RECIPE

    Paul Davies recounts the story of the first customer turbo race car, the #Porsche-934 . The Porsche 934 blended the RSR Carreras of the early seventies with pressurised induction to cook up the first customer turbocharged racer.

    Can you have a fusion automobile as well as fusion cooking? Take a well-proven chassis, and engine, mix with all you’ve learnt about turbocharging from sports car racing in the United States with the 917, and serve up as one of the most successful customer competition cars to come from Porsche. Only 31 examples of the Porsche 934, officially known as the Carrera RSR Turbo (or simply Turbo RSR), were manufactured ready for the 1976 season, but they dominated their category way into the following decade.

    There’s always been a Porsche policy of encouraging the customer to go racing, or rallying if comes to it. Competition improves the breed, and it’s often a fast-track means to develop a new model. More importantly, however, was the Stuttgart family ethos that if a customer went racing, successfully, they became a loyal customer. Give the guy the right tools, help him a bit along the way – and he’ll come back time and time again.

    Back in the days of the four-cylinder 356, Spyders and the 904, and later with the Carrera 6, it was private entrants around the world who snaffled most of the silverware and helped create the Porsche legend. A goodly number of the 43 Porsche 917s manufactured ended up with driver-owners, or private teams, receiving varying amounts of factory support; both of the 917 Le Mans wins of 1970 and ’71 went to ‘private’ concerns.

    There’s also been a further thread running through Porsche’s motor sport involvement, one that continues to the present day. Except at the very top level, the customer competition car should be based upon a production model. Which excludes the 917 and also the most successful of all competition Porsches, the 956/962 of the 1980s, but think of the hordes who raced and rallied the 356 in all its forms and the many #911 variants of the sixties. By the early 1970s they were looking for a new car to run.

    The answer came in 1973 with the introduction of the Carrera RS. A total of 1580 of the 2.7-litre (2687cc) #Porsche-911 coupé were manufactured in both lightweight Sport (M471 option) and plush Touring (M472) versions, and a large number ended up in motor sport of one sort or another. After all, straight from the factory it had most of the right bits that in those days made a club, or national status, race or rally winner. It was the flag-waving 911 that got people queuing for the more ‘basic’ 2.4-litre model of the day.

    But Porsche knew their production racer would not be quite good enough for the serious private entrant. Of that production run, just 49 cars (preceded by eight prototypes) were selected for extra-special treatment before they left the factory. With a further lightened and wider bodyshell, a capacity increase to 2806cc with twin-plug ignition, the addition of 917 brakes, uprated suspension with coil springs supplementing torsion bars, and a stripped-out interior with a roll cage, the Carrera 2.8 RSR (M491) was the car for the serious customer racer.


    The Porsche 911 was considered a special grand touring car, and back in 1973 you had to make 500 in a year to qualify for entry into the Group 4 category. Further modifications could be made as an ‘evolution’ of the original car. In 1973 the Brumos team RSR ran as a prototype with a full 3.0-litre engine at the Daytona 24 Hours and it won; later in the year a similar Martini Racing car was outright winner of the Targa Florio, and took fourth overall at Le Mans.

    In fact the 2.8-litre engine was a bit of an oddball. The capacity, achieved by increasing the bore of the production Carrera 2.7 RS unit from 90mm to 92mm, was right on the physical edge, and proving unreliable. At that capacity it was also way short of the 3.0-litre international class limit. The obvious double solution was to move to a full three litres (2993cc) utilising an aluminium (instead of magnesium) crankcase, and the same 95mm bore that would later form the basis of the upcoming 930 Turbo road car.

    By 1974 the Carrera 3.0 RS had become a ‘production’ customer race car. A grand total of 109 were produced, of which about half were built as RSR versions to very much the same competition specification as the previous 2.8-litre. In addition 15 special cars (outwardly RS but with 3.0 RSR engines) were supplied to compete in the International Race of Champions (IROC) series in the USA.


    Both 1974 and 1975 were years for customer cars. In these two seasons private teams dominated on both sides of the Atlantic, with Peter Gregg winning both the Trans Am and IMSA GT series in the USA two years running, and the Kremer and Loos teams sharing John Fitzpatrick’s European GT Championship.

    Whilst customers worldwide were winning with the 3.0 RSR, Porsche was otherwise occupied, particularly with trying to win the East African Safari Rally (they came second) and also working to bring a new customer car to the starting grid. That car would be the Carrera RSR Turbo of 1976, the Porsche Type 934. The ‘93’ number signified the car was based on the production 911 (930) Turbo – first shown in 1973 but not to go on sale until 1975 – and the final digit that it was homologated into Group 4.

    Only, the recipe for the new car required a certain amount of tasting before it was ready for the table. Following success racing in the Can-Am series in the USA, Porsche had got the turbo bug big. At the peak of development the twinturbo engine of the 917/30 was giving in excess of 1000bhp, and it was logical the company should apply the same technology to both mainstream production (the 911 Turbo) and competition. The introduction of the (short-lived) BMW 2002 Turbo to the European market was an additional incentive to match their big rivals.

    Several prototype 911 Turbo road cars were produced (first with a 2.7-litre engine) and to test the configuration to the limit Porsche built four prototype race cars based on the Carrera 3.0 RSR but with a turbocharger. International regulations demanded pressurised induction engines should have a coefficient of 1.4, so to duck under the three-litre class limit the capacity was 2142cc. Even so, with single KKK blower, mechanical injection, twin plugs per cylinder, and an air-to-air intercooler between the turbo and the plenum chamber, the output was upwards of 500bhp.

    The rest of the specification was similar to the Carrera RSR, but with lightweight and wider body, and the addition of a large rear spoiler. The torsion bar suspension was deleted entirely in favour of coil springs at both front and rear. Factory Turbo RSRs raced in Martini colours during 1974 and proved relatively reliable, although they could not match the speed of the Matras and Mirages of the time. Second places at Watkins Glen and Le Mans were the highlights.

    At the end of the season, Porsche was happy with these ‘turbo-trials’ and announced it would take a break in 1975 and leave things to the Carrera 3.0 RSR privateers. Meanwhile, they readied the 934.

    Whereas the small-capacity Turbo RSR was, and looked, very much an out and out racer, the limits of Group 4 (500 of the base 911 Turbo had to be produced to qualify, but no problem there) demanded the 934 be a degree or two more sober. Visually, the 50mm plastic wheel arch extensions were the giveaway, along with the deeper front apron that held a big central oil cooler and twin water radiators – more on these later.

    Structurally the body was very much like the stock 911 Turbo, complete with impact front bumpers. Obviously there was a roll cage (alloy in-period, but not permissible now) and all the usual motor sport essentials. The interior was devoid of passenger seating and carpets, but it was not necessary for Porsche to resort to lightweight panels and thin glass to achieve the category minimum weight of 1120kg. In fact, the electric operation of the driver and passenger door windows was retained!

    Running gear generally followed previous RSR models, with the torsion bars retained but coil spring-over damper/strut units added to do most of the work. A major change at the rear was the use of short, cast aluminium, trailing arms pivoting on extended fabricated mounts on the rear crossmember, designed to reduce camber change. Solid bushes (nylon or uni-ball) replaced rubber where possible. The wheels were centre-lock, split-rim, 16in diameter BBS alloys of 10.5ins front and 12.5ins rear widths.

    The brakes were what tend to be, when used on the 911 Turbo, referred to as ‘917’ but that is somewhat of an understatement. Yes, they were as developed for Porsche’s Le Mans winner of 1970 and 1971, but the vented and crossdrilled discs of the 934 were 304mm diameter at the front and 309mm at the rear, and the alloy four-piston calipers heavily finned to improve cooling and extra-wide to allow endurance pads that were some 25mm thick. There was also a balance bar to allow adjustment of braking distribution front to rear.

    The engine was (as it had to be) based on the 911 Turbo, and the famed #Porsche-930 aluminium crankcase that would remain in use in competition Porsches in one form or another right through to the Carrera GT3 RS of 2012. Unlike the Turbo RSR prototype of 1974, the capacity stayed at 2993cc, meaning that when the FIA co-efficient of 1.4 was applied the turbo engine had a calculated swept volume of 4190cc.

    In detail the engine was in fact a fusion (again!) of the previous 3.0 RSR, the production 911 Turbo, and the small capacity unit of the RSR Turbo. The cooling fan was horizontal and centrally placed on top of the engine, driven by a belt and shaft just like later versions of the earlier race car – if you see what I mean. Valve sizes (two per combustion chamber) were the same as the naturallyaspirated RSR, but the porting was enlarged. There was one plug per chamber, as the road car, whilst compression was a lowly 6.5:1 to allow for the considerable ratio hike with pressurised induction.

    The innovation for the customer racer was the addition of the single exhaust-driven #KKK compressor. Like the 2.14-litre RSR, this was mounted centrally low within the rear body panel – unlike the 911 Turbo which had its turbo unit positioned bottom-left. The other new move was the introduction of water to cool the air between the turbo and the inlet manifold. With the earlier racer Porsche had demonstrated that passing the forced air through an intercooler before it mixed with fuel in the inlet greatly increased horsepower. With the new car the company sought the most efficient means.

    The intercooler of the RSR Turbo was a simple air-to-air radiator positioned above the engine in the rear bodywork, but for the 934 Porsche mounted two small radiators within the front bumper corners (where you’d find the oil cooler on most production 911) and circulated water, by means of a pump driven by belt off the front of the right-hand camshaft, from them to a pair of alloy intercoolers positioned above each cylinder bank. The system proved effective, and the extra weight was lost within the generous minimum weight inflicted by the regulations – just like the electric windows.

    In a further nod towards the production 911 Turbo on which the 934 was based, Porsche fitted Bosch K-Jetronic injection and not the purely mechanical system used on previous racing engines. The transmission was an uprated version of the four-speed Type 915 gearbox of the 911 Turbo, with the addition of a small oil cooler mounted in the rear spoiler.

    The result of all this was a tough and powerful race car (albeit, by all accounts, somewhat of a handful to drive on account of massive turbo-lag) that looked little different from the 911 Turbo sitting in the showroom. Early race engines developed 485bhp, but this soon grew to in excess of 500bhp.

    The 934 ruled Group 4 from 1976 until the early 1980s. In the USA major teams such as Brumos, Vasek Polak and Dick Barbour dominated with drivers of the calibre of Al Holbert, Hurley Haywood, George Follmer and Peter Gregg. In Europe it was Kremer, Max Moritz and Loos, with Bob Wollek, Tim Schenken, Rolf Stommelen and Toine Hezemens who continually took honours. Go to the excellent Racing Sports Cars site (see contacts) for a most comprehensive list! In the USA, the IMSA organisation announced it would not allow turbochargers in its Camel GT series, so Vasek Polak took his cars to the rival SCCA’s Trans-Am competition. Follmer won this in 1976 and Haywood was runner up. Then IMSA did a mind-change and allowed the cars to run in Camel GT. Porsche responded by producing an extra 10 cars – popularly known as 934.5 – with wider rear bodywork for 15in-wide wheels and an enlarged rear wing for 1977, but IMSA banned it before the first race!

    Back in the Trans Am series (this is complicated) the 943.5 won six out of eight races, but failed to take the title because of a protest from a (regular) 934 driver! Actually that’s not the end of things. As in all things Porsche there has to be a footnote. The Carrera RSR Turbo was a Group 4 car, and so to compete in Group 5 with a chance of outright victory on major events #Porsche produced the #Porsche-935 , which by #1979 was to win Le Mans outright. However, that’s another recipe for later.

    The 934.5 was built to give Porsche the advantage in the USA, being a Group 4 934 with big rear wing and larger rear wheels. Peter Gregg is seen here at Watkins Glen, 1977.

    2.1-litre Turbo RSR was built to test the concept of the pressurised 911 racer, and run in Martini colours in 1974. Here is Gjis van Lennep at the Nürburgring The turbo 934 was, in effect, a development of the normally-aspirated 3.0 Carrera RSR which won the 1973 Targa Florio (below).

    CONTACTS:
    Prill Porsche Classics:
    01787 476338
    Racing Sports Cars:
    www.racingsportscars.com
    Jens Torner: Porsche
    Museum
    Nick Faure: Le Mans driver

    PORSCHE 934 CARRERA RSR TURBO CHASSIS NUMBER 930 670 0153

    Our featured car was the 17th of the run of 31 #Porsche-934 s manufactured early in 1976, and sold to Belgian driver and team owner Jean Blaton – who raced under the pseudonym ‘Beurlys’. After race preparation by Kremer (including a repaint from yellow to white) it was delivered to the Le Mans 24 Hours to be driven by Nick Faure (GB), John Goss (AUS) and ‘Beurlys’.The car was retired due to a number of turbo failures, but restarted to finish the race, although it was officially ‘not classified’. Turbo technology was new, and it is likely the drivers were unaware the engine had to be idled to reduce turbo temperature whenever it came into the pits.

    After Le Mans, Blaton sold the car to Jean-Pierre Gabon and it contested the following two Le Mans but failed to finish on either occasion. Results included wins in the 1978 Grand Prix of Zolder and the Spa 600kms (Willy Braillard). The car was sold in 1982 to the Vermuelen brothers, who subsequently sold it to long-time owner Walter Pauwels. It was repainted to its original yellow prior to sale by auctioneers Coys in 2014 and is now in the custody of specialist Andy Prill for the new owner.

    “The innovation for the customer race car was the addition of a single KKK compressor…”


    The KKK turbo is mounted low and central behind the rear bumper panel, oil catch tank is to the right. The engine had to be idled for one minute before switch off to stop the bearings overheating.

    Rear suspension has coilover damper on screw platform and torsion bar with adjustable spring plate. Adjustable anti-roll bar uses uni-ball joint and nylon bushing.

    A small gearbox oil cooler is fixed behind the grille in the rear spoiler. Engine oil and twin intercooler water coolers are mounted within the front bumper.

    Horizontal cooling fan (as 917 and Turbo RSR of 1974) is more efficient than stock 930 Turbo vertical configuration. Small tank (top RH) is header for turbo intercooler water. Watercooled alloy intercooler is mounted above each cylinder bank and helped to reduce induction temperature from 150 deg C to 50 deg C.

    Turbo wastegate hides lower left. Normal boost pressure was 1.3 bar (18.5psi) which gave 485bhp, but greater pressure could deliver figures up to 580bhp.

    NICK FAURE REMEMBERS HIS 1976 LE MANS WITH ‘0153’:

    ‘It was brand-new from the factory when the Belgian team turned up with it at the #1976 Le Mans. These cars were a completely unknown quantity on the track and it was early development days for turbos in racing. The car arrived at the race in bare white from Kremer and I painted on the team colours in the pits.

    We had to race the car in production weight with electric windows and a lead weight bolted to the passenger floor. Crazy! What neither Porsche, or Kremer, realised at the time was that when the car came into the pits the turbo was still turning at colossal speed and without being allowed to cool down it blew apart.

    When it got to changing the fifth new turbo during the race, Jean said that he’d had enough. So he parked it up until the final laps and then just drove it slowly to the finish to complete the race, albeit many laps down.

    In the middle of the night when we were changing something like the third turbo a ‘tired and emotional’ Duncan Hamilton turned up in our pit with his Aussie friend Jumbo Goddard, offering his advice. He explained that Jumbo had a turbocharged XK120 so he might be able to give us some help!

    Of course in those early days it was a single large turbo with huge lag, but at La Sarthe that did not matter so much as it was a very flowing circuit with only two slow corners at Mulsanne and Arnage. I was offered the car for £10,000 after the race but sadly that was more money than I could have raised.’ Nick Faure.

    Well braced front compartment includes a 120-litre fuel tank and a 22-litre oil tank, both with fillers accessed through flaps in the lid.

    Bilstein front strut has coil spring, but Group 4 regulations demand stock torsion bar is retained. The brakes are 917 ‘endurance’ specification, with superthick pads.

    Standard wheel fitment for the Group 4 car was the split-rim #BBS alloy with centre-lock fastening. Note the rear wheels have the tyres bolted to the rims to prevent movement.

    The 934 proved to be a popular – and successful – entrant in sports car racing long after its intended lifespan. How many can you count in this photo!

    “Structurally, the body was very much like the stock #Porsche-911-Turbo-930 , complete with impact bumpers…”

    CARRERA RS/RSR ENGINE DEVELOPMENT

    Engine Bore/Stroke Capacity Induction Power (bhp) Torque (lb ft)
    The #Porsche-934-2.7-RS 90mm x 70.4mm 2687cc Mechanical inj 210 @ 6300rpm 188 @ 5100rpm
    The #Porsche-934-2.8-RSR * 92mm x 70.4mm 2806cc Mechanical inj 300 @ 8000rpm 217 @ 6500rpm
    The #Porsche-934-3.0-RS 95mm x 70.4mm 2993cc Mechanical inj 230 @ 6200rpm 202 @ 5000rpm
    The #Porsche-934-3.0-RSR * 95mm x 70.4mm 2993cc #Bosch Mechanical inj 330 @ 8000rpm 230 @ 6500rpm
    The #Porsche-934-Turbo-RSR * 83mm x 66.0mm 2142cc Turbo/mech inj 480 @ 7600rpm 340 @ 5400rpm
    The #Porsche-934-Carrera-RSR 95mm x 70.4mm 2993cc Turbo/ #Bosch-Jetronic inj 500 @ 7000rpm 430 @ 5400rpm
    (* twin spark ignition)

    RUMBLE IN THE JUNGLE

    The two works 911s entered for the #1978 East African Safari Rally were billed as SCs and presented in red, white and blue Martini colours. The car (14) crewed by locals Vic Preston Jnr and John Lyall finished 2nd overall, with Bjorn Waldegård and Hans Thorszelius (5) placing 4th. Painted in white and red Esso Eminence livery, the Alméras SC saw action at international level in the #1982 Tour de Corse, while the Prodrive cars emerged as Rothmans SCRSs for Henry Toivonen to take five wins in the #1984 European Rally Championship.
    Post is under moderation
    Stream item published successfully. Item will now be visible on your stream.
No hashtag items to show here
Unable to load tooltip content.

Drive-My.COM MEDIA EN/UK based is United Kingdom’s top cars/retro/classic/modern/tuning/moto/commercial news, test drive, classic cars and classifieds. For car advertisement be it an RETRO/CLASSIC/OLD-TIMER/NEW-TIMER, Coupe, MPV, SUV, Luxury Car, Commercial vehicle, OPC car or even an auction car. We update you with latest information on new car prices from both parallel importers and car authorised dealers with brands such as Aston-Martin, Bristol, TVR, Bentley, Ford, Porsche, Jaguar, Land Rover, Citroen, Tesla, DS, Alfa Romeo, Subaru, Toyota, Acura, Honda, Nissan, Audi, Kia, Hyundai, Volkswagen, Volvo, Mitsubishi, BMW, Mercedes-Benz. Find new car pricelists, new car promotions, new car reviews, latest car news, car reviews & car insurance UK. We are also your information hub for parking, road tax, car insurance and car loan, car audio, car performance parts, car discussion, motor insurance, car grooming, car rental, vehicle insurance, car insurance quotation, car accessories, car workshop, & car sticker, tuning, stance and Cars Clubs

Our Drive-My EN/UK site use cookies