951cab

I have a 951 with a 3L engine. I would like to fit the central hood outlet for the radiator/intercooler and NACA ducts that I've seen on 968TurboRSs (see www.968turbo.homestead.com).
This is the only way I can think of to increase air flow into and out of the engine compartment and therefore engine cooling. I would like to hear your thoughts/views on this as I've not seen this addressed on any of the bulletin boards.
Is it available separate from the 968 bonnet and will it fit a 951 bonnet? If available, how much is it and where can I get it?

Zero10

I know there are some aftermarket hood scoops that look very similar that are widely available. I am not certain if that one is available seperately however.
That said, there is no way it will fit with the stock airbox. The hood insulation already touches the top when the hood is closed. There is no room there.

I as well want to improve the airflow in my 951's engine bay, and I don't even have a 3L engine
Ideas that crossed my mind are a vented nose panel, which would simply help with the quantity of air entering the engine bay when at speed, combine that with the depressed hood scoop, and that should eliminate all of the intercooler heat from the engine bay.

I think there are 2 big problems. The exhaust manifolds, and the turbo. Those seem to be the 2 biggest heat producers in there. Perhaps wrapping the headers, crossover pipe and turbo would make a profound difference in underhood temps?

I find if I drive my car, then park it, I can't even check the oil for over 2 hours since the dipstick handle is so hot. I can't touch the airbox, and forget touching anything metal. This is causing my 4 week old coolant resevoir to start yellowing already.... This can't be good.
I will follow this thread closely!

GOBOGIE

Do you have a 951 cab?

Damian in NJ

Don't forget to note that the Turbo S and RS had a much larger opening in the front nose to let more air in-these are NLA from Porsche Motorsport unless you can convince them to do a run of multiples. Figure $1500 or more each. From what I hear Fitzgerald in Australia isn't selling any parts, only building complete replica's to order-in the past they had done a run of fiberglass front splitters for a group buy, and had sold other components.

theedge

Heres some discussion in this thread. And pics.

https://rennlist.com/forums/showthre...ight=hood+duct

shiners780

I have seen some racers remove a section of the rubber weather strip that runs across the top rear of the engine bay. It seems like it would allow some heat to escape, but how much I don't know. Drawbacks I suppose would be rain water running into areas it shouldn't, and if any hoses blow, you could get a windshield full of coolant? Any thoughts on this idea?

Zero10

Plus hotter air into the cabin, if you have an exhaust leak that would enter the cabin as well, etc.
Don't remove that weatherstripping, in fact, do your best to keep it in good shape.
I considered putting a 924GT style scoop on the driver's side over the turbo, to help keep things cool over there.

theedge

And ceramic coating/wrapping the headers, crossover, hothousing and downpipe will help quite a bit.