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WinRice WinRice is offline
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Join Date: Jun 2005
Location: Colorado
Posts: 700
Originally Posted by kenikh View Post
Also, a 3.6 fan is a great add, too. I am selling my early 11 blade to get one and may even fabricate a flat fan shroud like the one earlier in the thread for it. I really like the corvair-like tensioned belt idea to get even cooling.
The 3.6 fan is more quiet than the 3.3 fan, but also moves less air.

From the Porsche specs:

3.0L - 1:1.81 drive ratio - 1380 l/s @ 6000 Crank RPM
3.3L - 1:1.68 drive ratio - 1500 l/s @ 6000 Crank RPM
3.6L - 1:1.60 drive ratio - 1010 l/s @ 6100 Crank RPM

The 3.6 has a slightly higher drive ratio and still moves less air. Seems like the stock 3.3 fan is the best.
1986 911 Turbo
3.3L, K27HFS, Tial 46mm, TurboKraft Intercooler, 964 Cams, Monty Muffler, MS3Pro Evo, M&W Ignition, Zietronix WBO2 Data Logger, Wevo shifter, coupler and motor mounts.
Old 08-09-2009, 12:24 PM
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