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5

After all the hand waving and posturing, allow me to point out that the track was a whole 2 kilometers shorter when the 956 set that time. Also, those 2km were a technical part. Aside from that, one should also take into account the fact that the Porsche 956 weighed only 800kg. That's lighter than a Fiat Uno Mia. No supercar today weighs less than a ton ...


5

In 1983 there was a bypass where the GP track was being built giving a slightly faster circuit when the record was set but more importantly in 1984 Nürburgring grand prix circuit was opened so racing takes place there instead and for safety reasons racing cars, inc F1, etc do not run at full speed on the old track. Road legal cars are edging ever closer to ...


4

This issue might take some step-by-step diagnosis to find the source of the issue. Since it sounds like a repeatable issue, it should be able to come up with an educated root cause (instead of just throwing parts at the issue). I think Peter's suggestion is a good place to start (finding any fault codes in the ECU). After that, I would suggest testing the ...


4

I had a similar-sounding problem on a VW New Beetle. The car would start from cold fine, but after 15 minutes of running, it would be very difficult to re-start. It turned out to be a defective coolant temperature sensor. Replacing the sensor fixed the issue immediately. The computer was showing a code of P1296, which indicates a coolant-system defect.


3

If you planned on driving this more than once, I would replace all fluids in the car (oil, transmission/clutch, brake, coolant, power steering, etc.) I would then look over all rubber belts and tubes to make sure they are all still in decent condition, if not, replace. Vacuum lines need to be in decent shape also. Once you know your brake system is in ...


3

In addition to what already has been said by @Zaid, it could be added that, there hasn't been any revolutionary technological breakthrough in engine (internal combustion, jet propulsion or rocket) industry for half a century, even more. All the updates are small, evolutionary, iterations mainly connected with close looped, micro-controlled, electrical ...


3

In short, the Porsche 956 made use of underbody ground-effects which modern-day challengers do not utilize to the same extent. The 'Ring is a very technical circuit. The lap times are not going to be governed solely on raw power; cornering speed is key. Ground effects gives so much grip that in the words of one '70s F1 driver, you can "paint the road" with ...


2

Unless the rotor shows obvious signs of damage there is no way to tell by a photo. The only way to be sure is to measure the rotor with a micrometer. The most accurate method is with a micrometer specifically designed to measure rotors. The contact areas of the micrometer are pointed, this allows measurement at the base of any grooves. After the smallest ...


2

Let me also suggest that the backfire issue is related to ignition, not the valves. Check your timing, which you said you did statically, and also check to be sure the plug wires are in the proper place on the distributor. Easy to mess that up and it will cause a major odd firing of the engine. the above comments about fluids and tires is also on the money, ...


2

This is a very known problem of this model (Porsche 924). Your WUR (warm up regulator) is faulty, and it needs to be changed. Read this link for more info: http://forums.pelicanparts.com/porsche-924-944-968-technical-forum/443505-how-do-i-test-if-warm-up-regulator-bad.html



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