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What gear tops out at ~128mph?

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Old 07-26-2009, 11:27 AM
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washington dc porsche
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Default What gear tops out at ~128mph?
I'm looking at my old dynojet graph and I can't recall what gear was used but I can see that it topped out at 128mph. I think it's 3rd. 6spd manual, fyi.
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Old 07-26-2009, 11:41 AM
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ivangene
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has to be at least 4th

without running the numbers.........
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Old 07-26-2009, 11:53 AM
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ArneeA
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I think it's 3rd.
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Old 07-26-2009, 12:01 PM
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ivangene
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wow - so who needs 4th, 5th and 6th


the chart says 2nd tops out around 67
3dr around 99
4th around 128

hmmmm - I WAS RIGHT
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Old 07-26-2009, 12:05 PM
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Dave!
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It's 4th, 3rd gear tops out at around 95-100.
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Old 07-26-2009, 12:09 PM
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so 4th is the closest to 1:1, right?
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Old 07-26-2009, 12:26 PM
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htny
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i don't have the gearing handy for NA 6spd, but for TT 4th is 1.12 and 5th is 0.92
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Old 07-26-2009, 12:33 PM
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5th is 1.02:1 for 6 speed
4th is 1.22:1

4th is 1:1 for tip
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Old 07-26-2009, 12:43 PM
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Originally Posted by ivangene
wow - so who needs 4th, 5th and 6th


the chart says 2nd tops out around 67
3dr around 99
4th around 128

hmmmm - I WAS RIGHT
See, good info comes when one consults the manual! LOL
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Old 07-26-2009, 12:58 PM
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ivangene
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LOL - its the only part of my car home..... the rest of the car is in the shop
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Old 07-26-2009, 01:22 PM
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Sorry to bother you.

Originally Posted by ArneeA
See, good info comes when one consults the manual! LOL
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Old 07-26-2009, 01:29 PM
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ivangene
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no bother here - I hardly ever get anything right....

made my weekend
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Old 07-26-2009, 02:27 PM
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gota911
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Originally Posted by ivangene
no bother here - I hardly ever get anything right....

made my weekend
BAWHAHAHAHAHA!

Ed, sometimes you really crack me up! Someday, I hope we can meet in person!
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Old 07-26-2009, 02:56 PM
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Paul 996
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5th is our closest 1 to 1 but most dyno operators will dyno you in 4th and adjust for it. Top speed in 5 is 160ish which is really spinning the dyno unnecessarily fast.

My recent dyno pull was in 5th because it was late and we were all in a hurry to get out of there. With my raised rev limiter I spun the dyno to 162 which is not necessary. 4th would be just a good to get a smooth pull.
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Old 07-26-2009, 03:10 PM
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Originally Posted by ivangene
no bother here - I hardly ever get anything right....

made my weekend
LOL!
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