shift points for fastest launch

FifStreet · Apr 15, 2019

First off, I know this isn't a drag race car... but if I was trying to get the best 0-60 or 1/4 mile times, what are the optimal points to make the shifts? Is it redline for every gear?

I believe the max HP/torque drop slightly prior to redline. So would shifting before that be better?

hobby-man · Apr 15, 2019

TL;DW: For just about every car, shift at redline. You can do the math with your own gear ratios and peak torque HP numbers to confirm.

remc86007 · Apr 15, 2019

Generally redline is correct, although, depending on the skill of the driver and the grip of the tires, shifting before redline in 1st and maybe 2nd might result in faster acceleration in the real world because this car (especially with a tune) can spin 1 and 2 easily.

tinyman392 · Apr 15, 2019

Are the shift lights programmed for redline or are they programmed for optimal acceleration?

Driveitlikeuboughtit · Apr 15, 2019

remc86007 said:
Generally redline is correct, although, depending on the skill of the driver and the grip of the tires, shifting before redline in 1st and maybe 2nd might result in faster acceleration in the real world because this car (especially with a tune) can spin 1 and 2 easily.

My butt dyno believes this wholeheartedly.

CTtypeR · Apr 15, 2019

FifStreet said:
First off, I know this isn't a drag race car... but if I was trying to get the best 0-60 or 1/4 mile times, what are the optimal points to make the shifts? Is it redline for every gear?

I believe the max HP/torque drop slightly prior to redline. So would shifting before that be better?

typically you want to shift about 200-250rpm past peak horsepower. gearing plays a part, but in a street car it's so minuscule that you'd have to be an expert driver to take advantage of the optimal 50-100rpm differences between gears

shift points for fastest launch

FifStreet

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hobby-man

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remc86007

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tinyman392

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Driveitlikeuboughtit

CTtypeR

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