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911st 911st is offline
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Join Date: Jan 2004
Location: Sacramento
Posts: 7,269
The stock G50/50 has a pretty tall first gear. Those that have changed to a 6 speed seemed quite happy with there choice and even reported it transformed the car. However, you will need to get a limited slip added. Changing out 2-5 can make a significant speed potential but not low end.

Still, it dose not cure the real issue.

EFI dose allow for more ideal AFR's, which can make a difference.

What it dose best is to get the restrictive metering plate and assembly out of the way.

This dose for the intake side of the turbo what removing the cat and adding a straight through muffler dose for the hot side.

Thus, boost onset will come sooner and there will be less lag (time between boost onset and full boost).

The compression bump was equal to about 5% more pre boost power. Twin plugs about the same amount, making it a 3.5 adds about 6%. If you still have the stock clutch, a cup style unit removes a lot of mass for quicker response.

Cams and a different turbo can have an effect to.

Basically, a good efi conversion w the right cams, a bit larger intake ports, and the righ turbo will make a significant difference. With that your trans will seem near perfect.


Last edited by 911st; 01-31-2010 at 08:53 PM..
Old 01-31-2010, 08:51 PM
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