has anyone actually put larger butterflies in the secondaries when porting the t.b. What i was planning on doing was porting the primary and porting the secondaries with larger butterflies... is this safe or am i forgettting something.... this is on a tII by the way

also does anyone have indepth schematics on the throttle body???

astrochild7

 

there is really no point... the TB flows more then the intakes and other parts of the engine...

 

Plus the TB casting is pretty thin. There's not enough metal to port it large enough to make a difference.

For more info on the TB go to www.fc3s.org or www.iluvmyrx7.com and download the EFI chapter if the Factory Service Manual.