thingthatgoes

iTrader: (2)

Well has anyone encountered this problem? or used the Diablo Sport to change the axle ratio in the ECM?
I got an Ls1 2000 trans-am with T56 and it evidently has a different rear than stock. I did the math on the speedometer and I believe I have a 3.73. I can effectively change the parameters on everything else but I seem to be going nowhere when I do this.
Any help would be great.

2001NBMZ28

Are you using this? www.runninwiththedevil.com/faq.htm

thingthatgoes

iTrader: (2)

thanks alot, I wish I knew why Diablosport didnt have this on there own website.

2001NBMZ28

Good question - I printed it out and keep it with my manual just in case the link is ever deleted.

thingthatgoes

iTrader: (2)

I just hope that I know when they have to upgrade available. BTW, do you know if this would have any effect on the Trac Cont System? Mine has been all sorts of screwing with me lately.

2001NBMZ28

My car doesn't have TCS so can't answer. On page 20 of the manual it does say when changing tire/wheel size the stock PCM can only calculate up to a "certain" tire size (whatever that is?) before it will disable it. Get the speedo correct first then see what happens. If it was messing up before tuning could be something else like a loose wheel sensor or something.

CalCam

The current revision of that Predator is 2.12 and it now corrects for tire size and gear ratio changes correctly. To upgrade this one you have to send it back to the factory.

HTH

2001NBMZ28

I've got one of the first units produced - any info on where to send it/cost/etc for an update?

CalCam

Call them at (561) 908-0040. The upgrade is free to the orginal owner with a copy of the purchase receipt.

thingthatgoes

iTrader: (2)

that is pretty gay (not that theres anything wrong with that). I dont have the reciept and they probably want like a hundred bucks.

2001NBMZ28

I bought mine from RWTD via paypal and printed it out - call them maybe they can tell by the serial no. or something - won't hurt to try. Only works on one car at a time after tuning right? So it's gotta be yours. Still thinking about sending mine in for the update, don't want to run on the stock tune while waiting...going to check it out.