This is a discussion on Correct Speed within the Drivetrain forums, part of the LSx Technical Help Section category; Right now I have 255X45Zx17 inch with 4:10 gear and my speed reads 75 at 1800 RPM'S // 70 1600 ...
02-22-2009, 04:07 AM #1
- Join Date
- Jul 2005
- Pacific Beach //San Diego,Ca,U
White with Black Top
- 1999/ Z28
Right now I have 255X45Zx17 inch with 4:10 gear and my speed reads 75 at 1800 RPM'S // 70 1600 with 26.1 set in the PCM.
Does this sound right?
Any input would we greatly appreciated
Thanks in advance
99Z28/M6/ Pro 5 and Lou's "Short Stick"/ AAP Custom Y Pipe 3"/ 4:10 Gears CMS/ Chrome ZR1 Rims/MMS Aggressor Cam 233/233/578/578/113 lsa/Mac Mid-Lenth Headers/Don lee Auto Ported Throttle Body and Ported LS6 Oil Pump/AAP 6.0L Heads/SLP Dual Cam Roller Chain/MMS Mike Morgan e-Tune,Dyno Tuning.
Dyno: Sept 9,2008
439 RWHP/398 Torque
02-22-2009, 08:12 AM #2
Not quite there yet.
I always confirm my setting with a stop watch and cruise set a specific speed and go between 2 mile posts on the interstate. I use 80mph/45 seconds and 60mph/60 seconds.
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