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Porscha-Racer Porscha-Racer is offline
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Join Date: Mar 2006
Location: San Jose, CA / Miami, FL/ Racing in: Guatemala, El Salvador, & Costa Rica
Posts: 144
Hottest CAM you can run on a 965 Turbo...


I'm looking to install the hottest cams you can possibly run on a heavily modified 965 Turbo racer with the following profile:

3.3L 965 based race car with a single custom turbo making 480 RWHP

CIS in crude mode (no O2, no emission control valves, etc...)

Fuel Enrichment by Leask's modified WUR

Methanol-Water Injection System

Intake Heads, Injector Blocks, and Manifold ported to 41mm I.D.

964 CAMS

High Performance Valve Springs

B6 Intercooler

John Dougherty of DRC suggested the following:

"... I would stick with the 964 cams unless you can add some type of fuel enrichment. The 964 cams are the max with cis. I have also seen dyno sheets over 500 whp with the 964's.

If you stepped up to the GT2 cams, you would have enough camshaft to make it to 700 whp. But tuning will be hard to do..."

What has been the experience with GT2 cams? Any other sugestions? Would the 935 cams fit the 965?


Old 07-13-2007, 06:27 PM
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