Lack of torque is why I have been considering 3.4. Tracks I drive the torque issue is problematic with Boxster gearing and I do plan to do AX where torque is king.
What would be a good approach for a guy with a 1999 2.5.
I have my suspension all ordered and it will be installed next week. So researching motors is next.
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Originally Posted by Jake Raby
All the heads flow incredibly, even the 2.5 has an amazing amount of flow for such small valves and ports.. and a stock 3.4 head has an exhaust valves thats the same size as the 2.5 intake, and the 3.2 head is similar to those.
Boosting torque is what really makes an engine responsive, be it street or track and torque is something that these engines lack from the factory, especially at lower RPM. The 3.2 is a bit better just because of it's size, but it's still pretty lame at low revs.
Grant,
Any turbo engine would never pass smog in an area that requires a visual inspection... You could keep the OE exhaust system and re-install it for smog time though.
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