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A-4 REAR GEAR RECOMENDATIONS

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Old Jan 15, 2003 | 07:05 PM
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02RED Z's Avatar
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Default A-4 REAR GEAR RECOMENDATIONS

I have a 2002 Z28 with most all bolt ons. It has a 224 XER Cam and a Vig. 2800. My best run is 11.805 @ 114.47 with a 1.68 60 ft. Do you think I would gain anything going with a 3.73 or even 4.10 ?
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Old Jan 15, 2003 | 09:01 PM
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Default Re: A-4 REAR GEAR RECOMENDATIONS

ttt
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Old Jan 15, 2003 | 09:40 PM
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Default Re: A-4 REAR GEAR RECOMENDATIONS

A tenth or so.
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Old Jan 15, 2003 | 10:01 PM
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Default Re: A-4 REAR GEAR RECOMENDATIONS

</font><blockquote><font size="1" face="Verdana, Helvetica, sans-serif">quote:</font><hr /><font size="2" face="Verdana, Helvetica, sans-serif">Originally posted by Colonel:
<strong> A tenth or so. </strong></font><hr /></blockquote><font size="2" face="Verdana, Helvetica, sans-serif">assuming you have 3.23s, now I concur.
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Old Jan 15, 2003 | 10:04 PM
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Default Re: A-4 REAR GEAR RECOMENDATIONS

Thank's Colonel. Should I expect any mph gain ? Also , would you recommend 3.73 or 4.10 ?
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Old Jan 15, 2003 | 10:06 PM
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Default Re: A-4 REAR GEAR RECOMENDATIONS

I'm sorry for the lack of info. I do have 3.23 now
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Old Jan 15, 2003 | 11:33 PM
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Default Re: A-4 REAR GEAR RECOMENDATIONS

1.5 MPH

What height tires will you be running?
What RPM do you want to be crossing the line?
What trap speed do you expect (take into consideration any future mods)?
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Old Jan 16, 2003 | 11:35 AM
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Default Re: A-4 REAR GEAR RECOMENDATIONS

i say for a max effort (at the expense of daily driving, esp on the highway) go with a 26" tire and 4.10 gear. 3.73 is a decent compromise i also believe. not a lot of gain other than mph b/w 4.10 and 3.73 that i have seen. i love myu 4.10s from a roll though and it tightened the convertor somemore as well.
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Old Jan 16, 2003 | 06:45 PM
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02RED Z's Avatar
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Default Re: A-4 REAR GEAR RECOMENDATIONS

ttt
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Old Jan 17, 2003 | 10:19 AM
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Default Re: A-4 REAR GEAR RECOMENDATIONS

3.73 for an all out effort, worth 1-1.5...

4.11 for a drag focus.

With 4.11's I turn ~3000 rpms in OD at 75-80mph.
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