Ok, we had some rainy days here so I just today got a chance to datalog again. I added a total of 12% to the upper two rpm ranges and put the timing back to stock in the 93CAI tune and the knock is gone.

It's still rainy here, so when it clears up I'm gonna put the stock tune back in it and do some ...

Oldschool if you are changing the 93 octane tune, you may want to just try the 91 octane tune. You may be surprised. That may work fine as is.

Tried the stock 91 CAI tune and it felt the same as the stock 93 CAI tune. Felt no difference from stock. So I started tuning on the 93 CAI tune.

Michael

Thanks for the replies Mike And dnar.

I added a total of 6% fuel to the two upper rpm ranges, still some knock. Added 9% to the two upper rpm ranges and there is know ST knock through the 1st three gears. I only got .5 ST knock in 4th, in the upper range. Could this be a false knock or should I ...

I've done some tuning before and have also researched about people taking timing out with the 93 tune. Taking 1 degree out isn't gonna blow up any motor. Thanks though.

To the Diablo guys, your opinion would be appreciated.
michael

U7135
Software Version 9r28
09 SRT8 Challenger 6 speed.

Hello. Been doing some data logging and I have done some timing adjusting 1st, and now fuel adjusting. Want to make sure I am going the right way with the adjustments.

I'm getting some slight ST retard in the 4k and up range. 1.5 degrees ...

Update.

Got the new cable yesterday and still couldn't get the "Calibration Update" tab to show up on the DS Downlader. Called and spoke with Frank this morning and after about 30 mins, he had me do some reset on the tool itself. We went through the whole process again and the DS Downloader ...

I have a 09 SRT8 Challenger 6 speed.

U7135
Software Version 9r28

I bought it from a Dodge dealer about 8 weeks ago.

Received my new Predator U7135 today and when hooking up, I get the "This vehicle needs an update Download here :www.diablosport.com/dcx" message. So I go to my DS Downloader and ...