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WinRice WinRice is offline
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Join Date: Jun 2005
Location: Colorado
Posts: 695
Quote:
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.
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1986 911 Turbo
3.3L, K27HFS, Tial 46mm, TurboKraft Intercooler, 964 Cams, Monty Muffler, MS3 w/MS3X, M&W Ignition, Zietronix WBO2 Data Logger, Wevo shifter, coupler and motor mounts.
Old 08-09-2009, 11:24 AM
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