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Thread: Tunercat speedo calibration
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05-12-2013, 12:04 PM #1
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Tunercat speedo calibration
Does anyone else think that the tuner cat speedo calibration tool sucks?? I just can't seem to hit the nail on the head with getting my speedo perfect. I've punched in my tires, gear ratio, etc and that got it closer. Then I did the exact same thing again and got it closer but still not perfect. Anyone have any luck with getting it dead on? What's you're trick! Thanks, tyler
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05-12-2013, 12:09 PM #2
The FABRICATOR!
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I guess I can't say I've ever had a problem with it. Only thing I could say to do is actually measure your tires circumference and enter that instead of entering the tire size. Maybe that will get you closer
Chris
1985 Monte Carlo SS
Mods: 9:1 383 LT1, Ported Trick Flow heads, D1SC Procharger, 4L80E, 3.50 9"
Check out the M122 MCSS build thread here!
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05-12-2013, 02:12 PM #3
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When I did it on all three of our cars, it was dead on with my gps. Never had an issue.
1996 camaro Z28, Clayton racing 398, Rossler TH350 rmvb with brake, FTI billet race converter 4400, Dana S60 with 4.10's, 300 shot, Accel DFI controlled, UMI, Spohn, PA racing, QA1's, Baer brakes, 325/45/17 M&H, Caged, Corbeau's, Simpson, etc.
From zero to fuck yeah in 3 seconds.
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05-12-2013, 09:30 PM #4
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Hmm that's weird. Maybe I'll start over. It's close but just a few mph off. I'll try measuring the tires too. Thanks
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05-15-2013, 09:15 AM #5
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For revolutions per mile try ' tirerack.com ' click tires by brand on the left side. If your tires are there click the 'specs' tab and rev/mile s/b listed. I used revs/mile and have not had any problems. Also have you tried the 'speed error' section of the TC speedometer tool. Enter actual and indicated and it should correct.. I never used it so can't verify the accuracy.
I'm Bob. 1994 Z28, A4, CAI, CAM, 1.6 RR's, LT's, Cat-Back, Stall, 3.42's, Custom Tuned
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