FWIW, I have manaully actuated the butterfly in my DBW throttle body, and it seemed MUCH harder to do than any cable actuated butterfly. That spring and motor seems pretty stout.

 

ITB's need return springs on each throttle for liability reasons,
and as such would be pretty hard for a dbw motor to work against.
Add up the effort needed for 4 or 6 throttles and compare to what's needed for one throttle

That and most makers of ITB's don't want to deal with DBW because of the basic liabilities involved.

LHP
www.haywardperformance.com

 

there is atleast one guy on the board that has itb's but he converted his 2006 to a 2005 throttle cable mechanism. My buddy has itb's on his AE86 and i am so jealous =(

 

it can be done, contact the right people and provide funds and you will have it done !!! anything is possible !

 

Fenix Oh I know it can be done by converting to cable but like I said wanna know why it couldn't be done by DBW electronic opening and closing like the single throttle body that comes standard on my car

 

yea what yer saying makes sense