Here’s a little info about Pete’s truly impressive build with a M97 Porsche engine swapped into an early 911.
He’s got a pair of what looks like 2” thick core radiators which he states the core size is about 16” x 9”. He also reports no cooling issues, so this setup seems sufficient to cool that big 3.6L M97 in a race car.
His setup gives a total area of about 288”. A general rule of thumb is one square inch ore horsepower. I’m guessing Pete is pumping out about 350-400 hp there, but evidently his setup seems to be fine.
He also runs his radiators in series which is less efficient than a parallel setup. He runs the coolant lines (looks about 1.5”) inside the car. That’s fine for a race car, but wouldn’t fly with a a
Street car.
The radiator size info is on pg. 6 of the thread
https://forums.pelicanparts.com/porsche-911-technical-forum/518231-pvx-build-thread-one-view-slope.html
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