gt2 turbos on 997tt - Page 3 - 6SpeedOnline - Porsche Forum and Luxury Car Resource

Aug 22, 2008 | 10:16 AM

#31

Josh/AWE

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Joined: Jul 2003

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From: Horsham, PA

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Quote:

Originally Posted by sns

EVOMS also supplies new diverter valves w/ flash -- is this necessary for a 997tt flashed w/ GIAC?

We have seen no need to upgrade the DVs on the 997TT, even at the 750hp level.

We have tested external units, stiffer springs in the OEM units and there was no performance or drivability difference. The only difference we could detect was a slight noise change at part throttle with the external units, but it was almost imperceptible.

Unlike the OEM DVs on the 996TT, the 997TT DVs are much more robust and we have not seen a failed one yet.

Aug 22, 2008 | 10:21 AM

#32

sns

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Joined: Aug 2008

Posts: 43

From: LA

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Todd: can you answer this q:
May we infer then that EVOMS "boost is lower than before and drivability at part throttle is not smooth"?

AS I'm sure you're well aware, it's impossible to test all of the different ECU flashes out there and since this upgrade, if not done right, can have some adverse consequences...well, I'm just doing my due diligence research......