Diablo Tuner

**TK THE TRUCKER** · 05-04-2006, 08:54 AM

I recently bought a Trans Am and the guy gave me the DiableSport tuner he bought for it. He mainly bought it to change the settings for different gears and tire size. He couldn't get it to make the speedometer correct though. He never downloaded the performance program and then I accidently did when I was playing with it. It runs real good now but I still can't get the speedometer correct even though I'm putting in the right information. Any suggestions ? Thanks, T.K.

**onyx_rock** · 05-04-2006, 10:01 AM

http://www.runninwiththedevil.com/faq.htm

**TK THE TRUCKER** · 05-04-2006, 05:18 PM

Excellent !!!! Thank you. Now I just need to get home from the road to try it out. Thanks, T.K.

**2001NBMZ28** · 05-05-2006, 11:35 AM

I have to do the same thing for my gear swap - I made myself a little "cheat sheet" off of www.f-body.org/gears/ and keep it in my glove compartment so after playing with the tuning I can double check my RPMs against MPH to make sure it's correct.

**rotwiler** · 05-07-2006, 06:52 PM

I have found even using those setting my Predator sometimes doesn't fix it the first time. Sometimes takes a few tries, you should know pretty quick when the speedometer is off and car feels funny shifting into OD at 25mph lol Other than that I have had great results with the predator..my car was 284 hp stock and 307.1 after the intial predator tune. After my LT headers I used it for A/F changes and gained around 20+ hp getting everything right, then paid RWTD and had my long term fuel trims adjusted and TM removed. Overall a good product. I just broke a solder point off at the plug, so need to fix it now, but will be easy. I am starting to outgrow it now, but I can't complain...12.6's with LT headers, a stall converter and exhaust and my fat butt at 300 lbs.