Best RPM to shift for 1/4 mile times?
#1
Best RPM to shift for 1/4 mile times?
My 05 has 3.55 gears, 5 speed, JLT CAI, 93 octane Brenspeed tune, UDP's and some suspension mods. The original max HP RPM was 5750 and before the tune, it really didn't want to rev above that. But now it will easily rev above 6k. I do not go to the track very often, but wanted to know what shift RPM will achieve the best 1/4 mile times? Ed
#2
redline is 6000 rpm and that's where I shifted at the track. on my car I was trapping in 3rd when it was bone stock. typically shifting at peak HP is your best bet and these cars make peak HP at redline especially after some mods.
#5
My 05 has 3.55 gears, 5 speed, JLT CAI, 93 octane Brenspeed tune, UDP's and some suspension mods. The original max HP RPM was 5750 and before the tune, it really didn't want to rev above that. But now it will easily rev above 6k. I do not go to the track very often, but wanted to know what shift RPM will achieve the best 1/4 mile times? Ed
#6
2nd Gear Member
Join Date: Mar 2010
Location: Camp Lejeune, North Carolina and Fort Lauderdale, Florida
Posts: 470
#8
it's only bad if that's how you drive 24/7. anything done to an extreme is bad, in moderation like an occasional trip to the track or romp on a freeway on ramp and you're fine.