Originally Posted by
RTWarpig
I have an 07 Charger R/T that I put a 06 6.1 SRT motor that I rebuilt stock and added a SRT Maxx Plus cam. Cam spec is 218/226 Duration with .566/.556 lift and I'm pretty sure the LSA is 112. I had the a shop known as the gods for tuning mopars tune it with diablo tuner, but they just could not get the surge out of the idle. It was really bad when I did cold start up. They made several attempts and told me it was the cam and nothing they could do about it. I ordered HP Tuners and was able to get my surge down considerably. It was so bad that if you where in gear, it would try to jump ahead and over power the breaks. I was able to get the surge out in gear but still have a little surge in p/n. I have tried every idea I could find in the post with no luck. Any help would be great.