[wang970305]

Originally Posted by EliteLT1

mm

I'm running the LT2 IM unported, with the 95mm throttle body, also unported.

My logic (shoutout to EssMotorsports on youtube) is that for any throttle position besides WOT, the larger throttle body will allow more air to flow. For example, you will get more airflow with a 95mm TB at 50% throttle than you would get with an 87mm TB at 50% throttle. Probably more of a throttle response benefit in this case

At WOT, the 87mm TB still has the plate and shaft blocking part of the opening (effectively reducing airflow below a true 87mm opening), while the IM opening is always the full 87mm diameter circle. In this case the TB is the limiting factor for airflow. Going to a 95mm would make the IM opening the limiting factor

Unless I'm misunderstanding how they measure the TB, this makes sense to me. But I don't have any comparison numbers isolating only the TB differences

Im confused... the IM opening is choked back down to 87mm, how come the 95mm TB would work better than the stock 87mm tb