I have a 98 ls1 i just got my hypertech power programmer. I have a slp lid, 3:73 gears and a slp cat back exhaust. I need help tuning my car!! Where should i make it redline?? is going too much bad? Right now i believe its a 6200 rpm. Second is where should i set my shift points to get the best 1/4 mile time? or does it even affect it? this is how it reads..

1-2 shifts +/- 6MPH (in 1 MPH increments)
2-3 shift: +/- 12MPH (in 1 MPH increments)
3-4 shifts: +/- 18 MPH (in 1 MPH increments)

Right now i left it at stock because i dont know where to set it. If anyone knows if ishould add MPH in the shifts please let me know!! thanks everyone

 

Unless you have upgraded your valvetrain, leave the redline alone.

 

yeah it is a stock valvetrain.. oh ok thanks

 

Programmer wants to know wheel height... my tires size are stock 255 50 16 .. .does anyone know ?

it says from 22 in to 35 is the range... thanks

 

puta chalk line at the very bottom of the tire wall(where it touches the ground) then mark the driveway too. next push or drive forward until the mark on your tire goes around once, whenreaches the ground again. measure in inches the distance between the two lines on the ground. divied by 3.14 (pie) that will give you your measurement.

 

It's 26 inches. I just typed it into my HPTuners, and it converts it for you.

 

thanks

 

is there any advtange if i change my shift points?? will it make me faster??? any ideas.. let me know..

 

i have 17x9.5 rims with 27540r17 tires... my measurements i put in my tunner was 24.50 how can a stock tire be bigger?

 

255/50 R16 is not stock