2006 Gen 3

It's been a while since I've been on here. For the past 3 years probably put on little over 1000 miles. Very rare of me to even do that. lol

The issue has been since I rebuilt the engine about 4-5 years ago. The engine was stock with bolt-ons and Blew up on turn 1 at Mid-Ohio. Gave me a chance to rebuild and put forged bottom end in.

The bucking I thought was more because of the cam, big TB, and lighter Flywheel. But I've been doing research and haven't found much solid info that is the cause. It's worst from 1st gear and better when in higher gear. 3rd at 2000rpm really bucks.

The list

upped the CR 10.2:1
Roe racing 710 cam
Dual valve springs
Cleaned up burrs in the ports of the heads
Light flywheel, not Alum (I can't remember what brand it is)
BBK twin 67mm TB
K&N air intake
Mopar race exhaust (stock headers no cats)
AB wires/ Bosch +2 plugs (recommended by Roe)
Dry sump system built by me (this bucking was done before this install)

What I have checked

Vacuum leaks
Compression Test average of 175 all within less than 5%
data log with A/F ratio and everything looks very good except at idle the timing seems to jump quickly of 10-15degrees. I would assume because of not enough vacuum from the big cam.
Spark plugs looks great.

What I will check tomorrow are my coil packs. I've always wanted to upgrade to Screamin' Demon packs.
I thought I still have my stock TB but I may have sold it. This is another try but I have to see if I can find a used one or if someone local around Milwaukee/ Madison, WI that I could quick use.

I would love to hear some inputs what may cause this. I have spoke to Sean from Roe Racing about the situation awhile back and I've gotten busy with other things and forgot about it.


I normally can figure this out myself but there are so many variables that could cause this.