Hello everyone. Need some help/advise on this vehicle. Supercharger has been installed this past winter and have been tuned remotely (email tune from a big name tuner) and was also locally tuned. Email tune used a standard 2014 GT strategy while Local Dyno used the Boss strategy with Track Key enabled. Both tunes rans good idle, part throttle and WOT pulls clean all the way to rev limit @ 7500rpm. Making about 630whp/520torque @ 7200rpm. The only issue I have and have been trying to work it out myself this whole summer is when I stab the pedal at part throttle. The car will surge. To get rid of the surge is either I floor the pedal or back off and roll with the throttle. Both tuners told me that it is due to the bypass valve fluttering when it is near to closing which I believed that they are right. But what bugs me though is that both of the tuners said that it is normal for a PD blower to have that surge and that I have to change the way how I drive the vehicle. That takes away the fun of driving this car... So I decided to purchase HPT tuning interface so that I will check it myself plus I can also learn how all this tuning thing about my car. So for 4 months of browsing through the web of gathering ideas and applying it to my tune, I only made a miniscule progress of toning down this surge issue. Maybe I'm not doing it right or maybe the tuners were both right that I just need to learn to live with it Below is the vehicles info:
Vehicle info:
2013 Boss 302
Whipple 2.9L Gen4 w/ 3.75 pulley
stock throttle body
Injector supplied by whipple - 2014 GT500 injectors 52#
NGK 6510 Spark plug 0.028 gap
cat delete
Email tune - 2014 Mustang GT Strategy
Dyno tune - Revised Boss Strategy w/ Track Key enabled (lopey idle, launch control and aggressive engine braking are all functional with only a slight change)
Any help or advise is greatly appreciated. I'm all ears.
21-09-27 13-35-39.hplBoss Track Key_CatDel_Surging Issue.hpt