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Author Topic: Gearbox Ratios  (Read 2186 times)
71CALRIPPER
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Posts: 1530



« on: May 26, 2010, 10:53:58 am »

Looking for peoples thoughts on these gear ratios for a NA motor but not a high reving motor.
More street than strip

gears (weddle)
3.78
2.36
1.31 (welded)
1.04 (welded)
3.88 ring and pinion

Thank you
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Jason Foster
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Posts: 1255


7.69 87mph 12.35 106 mph


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« Reply #1 on: May 26, 2010, 13:37:23 pm »

  I think this will have you more in the high reving range personaly.  For street I'd suggest the 2.06 second.  and a .89 fourth.
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STRENGTH THROUGH JOY...........

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nicolas
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Posts: 3998



« Reply #2 on: May 26, 2010, 14:24:29 pm »

what jason said, but with a 4.12 RP. strongest 'stockish' gearbox and a good cruiser/driver box IMHO.

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Zach Gomulka
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Posts: 6991


Don't piss down my back and tell me it's raining.


« Reply #3 on: May 26, 2010, 16:59:19 pm »

That sounds like a terrible gearset. Long 1st, close second, huge 2-3 drop, and a final drive that works out a little shorter than a stock 4.12 box. I'd take a stock ratio 4.12 box over that any day.
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Born in the '80s, stuck in the '70s.
Bruce
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Posts: 1417


« Reply #4 on: May 27, 2010, 06:07:07 am »

For that tight second, your 3rd is too tall.  Build it that way, you'll experience a bog everytime you hit 3rd.

A better split between that 2nd and that 4th is a 1.50.

I agree with the above.  4.12 is where it's at.
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Jason Foster
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7.69 87mph 12.35 106 mph


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« Reply #5 on: May 29, 2010, 05:51:39 am »

  Well he said he was running the 3.88,  for 4.12 I suggest

       3.78
       2.06
       1.26
         .82                 Keeping in mind he's looking for streetable cruising.
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STRENGTH THROUGH JOY...........

Der Kleiner Panzers
FDK/mrpedrini
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« Reply #6 on: May 29, 2010, 16:35:56 pm »

What kind of engine and horsepower do you have? I think we might searching for the same solution.... (check out my topic: 2017cc gearbox selection).

kind regards, Dennis
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