The 1.121 value won't change, and I said to leave the tire size field at the stock value. I didn't say to change it, as you never use the advertised or measured tire dia because of the difference in the loaded radius.
Russ Kemp
The 1.121 value won't change, and I said to leave the tire size field at the stock value. I didn't say to change it, as you never use the advertised or measured tire dia because of the difference in the loaded radius.
Russ Kemp
I haven't done anything yet. I was unsure what stock value was for this car, and the only values I had were based on tire size calculator. I hear what you're saying about load radius differential. I'll dig back and find out what the stock number was, and see if it's actually the number I have currently.
Thanks Russ!
Ross
MP112 conversion.
2000' Grand Prix GTP
Stock value 25.82", which was what was I had originally. Good.
MP112 conversion.
2000' Grand Prix GTP
Hey Russ.
Flashed the new tune with just the ratio change. No DTC's, and Calculated 3rd gear ratio is 1:1. Attached is datalog.
Shifts were smooth and soft as they should. Trans had been rebuilt, and apparently been in Limp Mode for quite sometime now, and I thought the harsh shifting was actually the shift kit etc. Guess not.
Everything seems ok on my end. Agree?
MP112 conversion.
2000' Grand Prix GTP
The calculated gear ratio in 3rd is now 1, so looks ok to me.
Russ Kemp