Just wondering what the gains would be on a FI motor with 9.0:1 compression tuned to roughly 500whp with a throttle body upgrade? found this site that does it for $230 check it out:

http://www.proflowdesign.com/

Thats for input / comments!!

-George

 

The Z already has a decent sized throttle body. However the more air that can be forced into the motor, the better. But on the Zs i've seen lots of CEL problems with these throttle bodies. upgrading the plenum is a sure fire way to gain more power on FI instead of a throttle body IMO

 

I think those are the guys that 350evo (maybe..?) used to get their TB's outsourced. I can't see why that would help really. The whole intake system is only as effecient as its least efficient part. You would probbly make more gains from plenum upgrade as tony said.

 

Cool, thanks for the input.