Adaraas
Well-Known Member
- Joined
- Feb 13, 2015
- Threads
- 61
- Messages
- 482
- Reaction score
- 101
- Location
- Central FL
- First Name
- Austin
- Vehicle(s)
- 16 Premium GT, 17 Laramie Cummins
- Thread starter
- #1
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Got a question for you. Using a 28" tall tire and 3.15s what is the rough rpm number it should go through the traps in 3rd? It's losing quite a bit by shifting into 4th and I'd like to fix that.very nice
run a 25.6 tire like the 275/40/17Got a question for you. Using a 28" tall tire and 3.15s what is the rough rpm number it should go through the traps in 3rd? It's losing quite a bit by shifting into 4th and I'd like to fix that.

I've already got the 28" tall tire thorun a 25.6 tire like the 275/40/17
I bet you gain 8th et, 8th MPH and big end MPH too![]()
3rd gear should hold till 137 with 3.15's, 28" tire, 7600rpms. I run a taller tire, 28.8 and shift into 4th at 140mph, 7800rpms, 3.15's.Got a question for you. Using a 28" tall tire and 3.15s what is the rough rpm number it should go through the traps in 3rd? It's losing quite a bit by shifting into 4th and I'd like to fix that.
I was running the wheels and tires in my sig. fastest pass was actually on them vs my MT 295/45/17sCongratz on the times!
What tires and wheels were running on those passes?