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need to recalibrate the tach/speedo..

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Old Nov 17, 2006 | 09:16 PM
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need to recalibrate the tach/speedo..

I pulled my gauge needle off without checking the speeds i have an AVCR that could tell me the RPM but could someone please post their 3rd gear speeds at 3k rpm and 5th gear if possible?

I've searched and found very little;
3rd gear @ 3krpm = 60mph
5th gear @ 3krpm = 80mph

does that sound right to anyone? thanks!
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Old Nov 18, 2006 | 11:13 AM
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no one?
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Old Nov 18, 2006 | 05:45 PM
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Assuming stock rear diff ratio and tire diameter, 3rd gear @ 3,000 rpm is 39mph and 5th gear @ 3,000 rpm is 75mph. Hope this helps.
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Old Nov 19, 2006 | 12:42 PM
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Originally Posted by puffxy
I pulled my gauge needle off without checking the speeds i have an AVCR that could tell me the RPM but could someone please post their 3rd gear speeds at 3k rpm and 5th gear if possible?

I've searched and found very little;
3rd gear @ 3krpm = 60mph
5th gear @ 3krpm = 80mph

does that sound right to anyone? thanks!
Assuming stock gearing, wheel and tire sizes:

Wheel Size : 16 inches
Tire Width : 225 millimeters
Aspect Ratio : 0.5
Revolutions per mile: 811.1052251718
Rolling Length : 78.11563535
Redline : 8000

RPM 1000 2000 3000 4000 5000 6000 7000 8000
1st: 5.20 10.39 15.59 20.79 25.99 31.18 36.38 41.58
2nd: 8.95 17.91 26.86 35.81 44.77 53.72 62.68 71.63
3rd: 13.01 26.02 39.04 52.05 65.06 78.07 91.08 104.09
4th: 18.09 36.17 54.26 72.35 90.43 108.52 126.60 144.69
5th: 25.12 50.24 75.36 100.48 125.60 150.72 175.84 200.96

40 50 60 70
1st: 7696 ----- ----- -----
2nd: 4467 5584 6701 7818
3rd: 3074 3842 4611 5379
4th: 2211 2764 3317 3870
5th: 1592 1990 2388 2786



This would be more readable if the forum software actually used the font it said it was.

If you have other tire sizes/gearing you would like to see, just PM me.


Jared
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