ITB sync

[Inline__engine]

I've got a set of throttle bodies (3 pairs) but they dont have individual syn feature so you can only sync them in pairs. the sync is not too bad within the pairs but not perfect and id like to be able adjust them individually to fine tune things is there an aftermarket bypass valve that i can add to the system?

i'm not 100% sure how other sets tune them individually but i wouldn't want to machine the throttle bodies, im running an PWM idle valve with a rubber hose to each runner which has a nipple screwed in so i could add something inline along the hose.

does anyone know of something that would work?

cheers

[garagewidow]

what bodies are they?

do they not have a balance tube in them to equalise vacuum between each choke?
if the hose you are using for the icv is large enough bore it should do the same thing anyway as you mention as long as the pipe length isn't excessive.

[Inline__engine]

the bodies dont have the bypass like say jenvey. they are preset which is fine in theory.....

i realized im going to have to invest in a fluid vac gauge sync tool not the flow type ones otherwise i wont be able to see the amount im bypassing.