Whats the best rpm to shift? - Ford Mustang Forums : Corral.net Mustang Forum
 
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post #1 of 7 Old 08-29-2008, 12:49 PM Thread Starter
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Whats the best rpm to shift?

Took the car to the track, and was a bit disappointed. I have a JLT CAI, Professional Products T/B and upper plenum,BBK equal length headers w/ full exhaust, and custom tune The best i could squeeze was a 14.3 ITs a 2000 GT vert I was shifting at about 5200 RPM . Temp that day was about 87. Iread some threads where guys said 6000 was the sweet spot It was my first time on the track. Whats the best RPM for a 2 valve with some bolt ons?

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post #2 of 7 Old 08-29-2008, 01:14 PM
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Take it pretty much to redline and if you are a 5 speed with stock gears you might want to stay in 3rd unless you are running 100+mph.

Did you have it dyno'd to make sure the power was there? What was your trap speed?


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post #3 of 7 Old 08-29-2008, 03:41 PM
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Depends on powerband. When the car stops pulling or making power you need to shift a little before that.

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306,Novi 2000,C4.
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post #4 of 7 Old 08-29-2008, 04:31 PM
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Quote:
Originally Posted by orangecapri View Post
Depends on powerband. When the car stops pulling or making power you need to shift a little AFTER that.
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post #5 of 7 Old 08-29-2008, 04:34 PM
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My bad, but you get the point. Only thing would be if your losing power because of valve float you'll want to shift a little early. But yeah

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post #6 of 7 Old 09-03-2008, 04:00 AM
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I have an 02gt with ud's, o/r x,catback,jlt and i shift at about 6k. I bumped my rev limiter to 6200 so i didnt have to shift into 4th. Before i did that i would bump the limiter just before the traps.

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post #7 of 7 Old 09-11-2008, 09:35 AM Thread Starter
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Thanks for the feedback, I forgot to mention,I have the power plus intake from professional products.Ive heard thees intakes can hurt your low end power , any comments?
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