throttle body question

1924 Views 4 Replies 4 Participants Last post by ViperRay, Oct 8, 2003

ViperRay

Discussion Starter · Oct 6, 2003

What if any effect would increasing throttle body size (68 or 70) have on my car which has K&N's, headers, high flow cats and Borla exhaust? Is increasing throttle body size only useful if you have a blower or ported heads, etc. or can you also increase flow with otherwise stock setup (given the need for A/F remapping)?
Ray

1 - 5 of 5 Posts

_Mark_

· #2 · Oct 7, 2003

You will lose power. You need serious mods before throttle bodies need to be increased.

FAST?

· #3 · Oct 7, 2003

i lost 25 pds of torque on a simple bolt on motor with 70 mm throttle bodies. not worth the money until you do more mods.

CS

· #4 · Oct 7, 2003

^^^What they said - there's no gain and potential for loss with bigger TB's on a non-stroker, reletively stock motor.

ViperRay

Discussion Starter · #5 · Oct 8, 2003

Thanks for input guys.
Ray

1 - 5 of 5 Posts

This is an older thread, you may not receive a response, and could be reviving an old thread. Please consider creating a new thread.