hello everyone I am having an issue with my speedo being off after installing gears in my 2001 Bullitt. I went thru my predator u7146 tuner and updated the gears and tire size according to all the charts and my speedo is off. when I am one the highway doing 80 it say I am doing 70 my tire size is 245/40/18 which after calculations came to 784.6 so I set the revs to 782 and the axle is set to 3.73 but it still is off. I did write the tune. any help would be great. I am using the hp factory tune as I don't have any other mods other then a JLT cold air intake..
Ed
isuses after gear install
Moderator: mikel
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edsbullitt
- Posts: 5
- Joined: Sun Apr 11, 2010 6:09 pm
Re: isuses after gear install
it seeme each time I go under modify tune and go to the axle ratio there is a asterisks next to gear ratio and tire rev any help would be great... it does not seem to be writing it into the car. HELP
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edsbullitt
- Posts: 5
- Joined: Sun Apr 11, 2010 6:09 pm
Re: isuses after gear install
got it all figured out emailed back and forth from the guys over at Diablosport and did my measurements and all is well and reading properly and in spec..
Ed
Ed