[p_a_p_i]

Can anyone tell me from experience; what to reprogram my shift points with a Hypertech Power Programmer, on my Sierra. It has a 4.8 liter engine, Flex-a-Lite Fan, throttle body spacer, throttle body bye pass, K&N air filter, Flowmaster; sitting on 20 x 8.5 rims with 275/45 R 20 tires. I know someone out there has the same set up. Please share with me.

 

[kevindepot]

Depends on how high you want you motor to rev.. When I hade my hypertech I had 1st gear shift at 4500rpm and all others at 5000 rpm. I didn't want to spin her that high.

 

[zubyc]

On my 5.3 it was set +3 1-2...i think +6 2-3....+15 3-4
this was with the rev limiter set at 6k

 

[BDSford03]

Hey does the hypertech programmer let u tell your truck what size tires you have? cause i have 35"s on a lifted 03 and my speedometer is way off and my abs isnt quite rigth..........thanks :think:

 

[Joshs2002Silverado]

i have to say...get a nelson tune.....