Any internal differences between 996TT and 997TT engines?
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I can confirm the heads are different also. The combustion chambers are different and so is the port design. The cams are also different. Although not part of the engine the intake manifold is different.
I have now seen a stock 997tt equipt'ed with Garrett turbo's pulling 700 hp on the dyno @ 19 inches boost. The dyno operater shut it down at 700 hp because it had stock internals and was afraid of pushing it any further.
I have now seen a stock 997tt equipt'ed with Garrett turbo's pulling 700 hp on the dyno @ 19 inches boost. The dyno operater shut it down at 700 hp because it had stock internals and was afraid of pushing it any further.
Last edited by cjv; Feb 11, 2008 at 04:02 PM.
I seen the car and the turbo work myself.. hehe
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2001 996TT 3.6L and stock ECU
9.66 seconds @ 147.76 mph 1/4 mile click to view
160 mph @ 9.77 seconds in 1/4 mile click to view
50% OFF ON PORSCHE ECU TUNING BLACK FRIDAY SPECIAL
2001 996TT 3.6L and stock ECU
9.66 seconds @ 147.76 mph 1/4 mile click to view
160 mph @ 9.77 seconds in 1/4 mile click to view
50% OFF ON PORSCHE ECU TUNING BLACK FRIDAY SPECIAL
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Joined: Oct 2006
Posts: 2,040
From: Seattle
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I can confirm the heads are different also. The combustion chambers are different and so is the port design. The cams are also different. Although not part of the engine the intake manifold is different.
I have now seen a stock 997tt equipt'ed with Garrett turbo's pulling 700 hp on the dyno @ 19 inches boost. The dyno operater shut it down at 700 hp because it had stock internals and was afraid of pushing it any further.
I have now seen a stock 997tt equipt'ed with Garrett turbo's pulling 700 hp on the dyno @ 19 inches boost. The dyno operater shut it down at 700 hp because it had stock internals and was afraid of pushing it any further.
I asked Todd K what the differences are and he stated the cams, intake, and fuel injectors were major factors in the HP difference. The 997T motor is very impressive! It puts out 60-75 more hp than a similarly modded 996T motor. Very efficient motor!
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Has anyone seen the 997 GT2 intake manifold? I am wondering if it will fit on a 996TT motor?
http://images.google.com/imgres?imgu...%3Den%26sa%3DN
http://images.google.com/imgres?imgu...%3Den%26sa%3DN
Last edited by dgreen78; Feb 19, 2008 at 07:32 PM.
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MORE DETAILS PLEASE!
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Joined: Jul 2003
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Has anyone seen the 997 GT2 intake manifold? I am wondering if it will fit on a 996TT motor?
http://images.google.com/imgres?imgu...%3Den%26sa%3DN
http://images.google.com/imgres?imgu...%3Den%26sa%3DN
Why neck down the plenum with a reduced splitter?
