Speedo correction for 3.90
05-13-2010, 10:37 AM
#1
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Speedo correction for 3.90 What software, or anything else would be needed to correct speedo for a 3.90 gear that was put into a 99 Corvette. Currently I'm using a Hypertech Max Energy #32002 and it only allows corrections for the stock gear ratios. Called Hypertech and the tech guy said they don't make anything for those gears. Any of you guys had better luck? I know the 3.90 are a common gear alot of guys are putting in.
Thanks for your help
Thanks for your help
05-17-2010, 09:09 PM
#2
Im using HP Tuners to do mine. It's an expensive program, I wouldn't buy it just to tune for gears. sell the hypertech and put the money towards getting a dynotune and have them adjust for the gears while they are at it. of just use the hypertech and set it for 3.73s which would get it closer to reading right then the setting for stock gears.
