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11

I certainly don't claim to have any special inside knowledge as to why Porsche engineers decided to route the exhaust that way, but I think that we can analyze the possibilities and trade-offs from an engineering view and perhaps see how one might come to such a conclusion. The possible options I think we can safely eliminate any front-facing exhaust ...


9

Yes for the most part an AGM is a drop in replacement for your standard Lead Acid Battery. The charging voltages are almost identical. You are correct that they have a lower internal resistance and can be charged at a much faster rate. This shouldn't cause a problem on the majority of vehicles as the wiring in the car is designed to handle the maximum rated ...


8

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 (...


6

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 ...


5

You need to confirm that timing is OK This forum thread looks to be talking about the same engine as what you have (3.4 L, 5 chains). According to the post, this is what you'll have to do: rotate the engine to TDC for Bank 1 (let's hope your 150° of freedom allows for this) check that the timing notches on the cams are parallel to the cylinder head (from ...


5

The answer is one of: Friction For example, rod, main, balance or intermediate shaft, and/or cam bearings, oil or water pump, or piston rings are too tight. Re-assembly of dry clean components without using assembly lubricant will also cause excess friction. Compression Air pressure resisting movement. Removing spark plugs will help here (in this case, ...


5

Yes, I'd suggest it's a Porsche Boxster, circa ~2000 MY ... Here's an image of one:


4

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 ...


4

I don't think you'll have much luck trying to use other cars' brake systems. Here's what a parking brake system generally consists of: Handle A splitter to split the one handle into two cables The cables that attach to the splitter, and run all the way back to the rear wheels (separately). A drum brake system inside each rear rotor (connects to the wires,...


4

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

You can get it covered with epoxy primer. If you have many pits and cavities, it would be best to go over the areas with a wire brush and then shoot your primer. I recommend a wire brush for the pitted areas vs a typical sanding block as it will not penetrate areas with depth. If moisture is trapped in there, expect it to corrode through. It is best to ...


3

I have found that NPT is a US standard for pipes and fittings. There is a Wikipedia page showing different conversions of the NPT standard.


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

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


3

There are a few potential issues as far as I can see. I'm drawing from my own experience with fuel systems and from a few of the comments. First, is/was your tank full when you put in the fuel additive? Fuel additives should always be mixed into a full tank of gas. The best way to add it is have a half tank, add the additive, then top the tank up. You need ...


1

The same bulb can be used in both head and dipped, what happens is that the bulb filament is positioned precisely within the curved reflector to give the required beam pattern, so the same bulb either does a longer beam pattern for main or a shorter lower one for dipped. Went to amazon for a laugh just to check and it says they are correct for your porsche.....


1

Automotive batteries really don't like being deeply discharged, and since the Cayenne will almost certainly have a noticeable constant drain courtesy of things like the alarm if you've left just left the battery connected for 3 months it's going to be very, very flat and may well have difficulty taking a charge. You can try and hook the battery up to a ...


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