2013 GT500 Whipple Monoblade hanging issues

[STAGEUP]

Hey guys, trying to get this resolved. We slapped this monoblade TB on a 2013 GT500 with a 4.5L Whipple and now the idle likes to hang at 1900 rpms ever once in a while until you come to a complete stop. Anyone have any experience with this Monoblade Whipple throttle body and what has to be modified in the tune to eliminate this hanging issue? Big thanks!!

[jchambers]

Did you change anything in the drive-by-wire arena to account for the TB?

[STAGEUP]

I tweaked some of the dashpot airflow parameters with no luck. What has me puzzled is that this throttle hang only happens 20% of the time while driving.

[jchambers]

I'd have to look at that strategy, but if its using torque-based decel the dashpot parameters are inactive. The bigger issue is that you're going to need to rework the effective throttle area and feed forward throttle angle tables to account for that throttle body. It is substantially larger than stock so the effective area is much greater for any given throttle angle.

[STAGEUP]

Thanks Jeff, thanks to your tip, I figured it out. :-)

[13guytt]

What was it?