ITB are they working????
 

The internal butterflys in my h22 ........... how the hell do i know if they are working? i can move them manualy and they are hooked up to a diaphram and the diaphram is hooked up to the intake vacume port.. but i dont know if they are realy opeining.. and also if they run on vacume why woudl i need the ecu to worry about ITB? so my question is.........
how do i know they are working.. and if they arnt how do i hook them up so they will??
Im using cromepro with a converted p28

Re: ITB are they working????
 

Does the p28 have the equipment added for the fly's?

Re: ITB are they working????
 

hell if i know... projkteg is who i got it from but i dont know if every converted p28 has the stuff to be honest i didnt know you needed something added to the ecu for the flys..

Re: ITB are they working????
 

yup you sure do so there not working

Re: ITB are they working????
 

so by you saying this, your saying kevin doesn't add these to the converted p28's? what exactly does the butterfly's do? could this be why our h22 swapped civic felt slow =x

Re: ITB are they working????
 

that might explain the weird bog u always had jeff!!!!

Re: ITB are they working????
 

Its extra work and only h22/gsr manifolds run them has they are a 3 piece design.p28 is designed for single plenum style manifold no butterfly's in the manifold. I dont know what Kevin does but if its just a p28 convert to just like a p28 with eprom no it doesnt have that


Yes this could be a huge reason why they never ran right.

Re: ITB are they working????
 

On the h22's I have tuned I persoanlly dont like the fly's. I remove them port and blend the plate to keep plenum volume. This is all motor crap that is very important

Re: ITB are they working????
 

would it make a large difference? i mean just intake, header, exhaust... will it make THAT much of a difference in performance n power output? like how much will it bring the motor down if these fly's were not operating ?

Re: ITB are they working????
 

WEll the old school tuning style was to just leave them open. This caused huge torque loss down below byt hp gains up top. If they are not activating at all alot. For you guys running p28's on h22's either remove them in total or just leave them open.