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Old 19-02-14, 09:59   #1
rb3torana
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Finish Line RPM

Just wondering what the ideal rpm to be crossing the finishing line at? eg: peak power at 6000rpm and redline at 7000rpm, would you want to cross the line at 7000rpm? Also any experiences with diff ratio changes or tyre size that affected ET/MPH. Cheers
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Old 19-02-14, 16:20   #2
sherman89
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Ideally you want to use all of your gearing. I have 3.45's and 255/60/15's, I cross at about 7400. Depends on converter slip also.
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Old 19-02-14, 16:32   #3
rb3torana
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So is your rev limit around 7500rpm or shift point? Cheers
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Old 19-02-14, 16:47   #4
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I've been through 3 different gear ratios there is only 1 answer to your question, run it down the strip how it is and then make changes from there every car is different,
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Old 20-02-14, 10:22   #5
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My limiters at 7700ish, I change at around 7600ish.
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Old 06-04-14, 16:15   #6
rb3torana
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After the recent drag meet, Ive found that my car is going across the line at around 61-6200rpm and Im shifting at 69-7000rpm, which it also pulls hard to. It has 3.0 gears at the moment, with 3.25's it should cross the line at around 6700ish depending on the MPH. Should I change my gearing? Has anyone had a similar experience with an improvement in MPH? Cheers
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