Well this thursday im gettin 4:10's put in and my 3:55's taken out. When I raced at the track w/ the 3:55's i was shifting at 6200 rpms. When its time to race w/ the new 4:10's should I be shifting at the same rpm at 6200 rpms or what? Guys with 4:10's what are u shifting at w/ 5speeds?
I don't have 4.10s, so I'm not speaking from experience, but it shouldn't be any different. The power band isn't changing so the shift point wouldn't either. The acceleration is just being increased so in turn you'll get there faster.
4.10's here, but in an 07 GT automatic. Still a 5-speed with similar gear spacing to the manual. I manually shift the auto shifter and shift around 6,500 rpm's for all shifts at the track (I reset my tune with a 6,900 rpm redline to allow for higher shift points). That was before the supercharger install and I haven't been back to the track since.
