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HP Tuner 3.73 speedo wrong?

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HP Tuner 3.73 speedo wrong?

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Old

Apr 10, 2006 | 10:20 AM

#1

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From: Laredo,Tx

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HP Tuner 3.73 speedo wrong?

I flash my buddy camaro last night I inputed the 3.73 gear ratio it has and speedometer is off like by 10 mph.He says he was going 80mph at 2500rpm stock 17 inch wheels.Is there any other parameter I need to change besides the 3.73 # ?

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Apr 10, 2006 | 10:25 AM

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From: Lake Zurich, IL

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what year is your buddies car? (02 I assume?)

What did you type in for the tire diameter?

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Apr 10, 2006 | 10:41 AM

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Quote:

Originally Posted by marine02ss

I flash my buddy camaro last night I inputed the 3.73 gear ratio it has and speedometer is off like by 10 mph.He says he was going 80mph at 2500rpm stock 17 inch wheels.Is there any other parameter I need to change besides the 3.73 # ?

you need to put in an accurate tire size, and the gear ratio, then it can calculate it out properly.

what did you use for the tire size?

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Apr 10, 2006 | 01:04 PM

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tire size in HPT shows 24.9, but actually 25.7....

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Apr 10, 2006 | 11:35 PM

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Thanks guys, cars speedo is working fine now.

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373, camaro, change, changed, correct, diablo, factory, gear, gears, hp, hptuners, ratio, speedo, speedometer, tuner, tuners, wrong, ws6

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