Poor Throttle Response After 90mm Install
Thread Starter
TECH Fanatic
Joined: Jul 2010
Posts: 1,756
Likes: 4
From: Maryland
Poor Throttle Response After 90mm Install Upgraded to a 90mm throttle body from the 78mm, and now the throttle response is pretty horrible. I have played around with some of the throttle cracker, throttle follower, and decay values, but I really have no idea what they do and don't want to screw anything up. It's got a pretty sever flare up on start up when hot also, which nothing has seemed to help to this point.
Also, I am thinking that the BE is not working correctly, has anyone had problems with an HP Tuners 2 BAR system lag pretty substantially in BE? Seems to not enter BE when crossing the 100KPa threshold under normal cruising, when not initially already in PE.
Also, I am thinking that the BE is not working correctly, has anyone had problems with an HP Tuners 2 BAR system lag pretty substantially in BE? Seems to not enter BE when crossing the 100KPa threshold under normal cruising, when not initially already in PE.
FormerVendor
Joined: Nov 2012
Posts: 390
Likes: 0
From: Dyno Tuning in KY
Yep the BE is useless in HPT... you need to use the 105kpa row of the OL/FA table or PE to command boost fueling. I'm not on my tuning laptop but did you set the area scaler for the larger TB?
Thread Starter
TECH Fanatic
Joined: Jul 2010
Posts: 1,756
Likes: 4
From: Maryland
The ETC scaler area is set correctly to 0.0192, and functions well enough, it just lost A LOT fine control, which is likely attributed to the everything else set for the intended 78mm throttle body. I just don't know for a fact what all of the adjustments do and the provided descriptions in HPT fall short.
