C4 Tech/Performance L98 Corvette and LT1 Corvette Technical Info, Internal Engine, External Engine

Best gear ratio.....

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Old Aug 12, 2002 | 10:21 AM
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Default Best gear ratio.....

'94 ZF 6spd. K&N, lid, wires, B&B Exhaust, and LT4 HotCam. What ratio would be the best for a gear swap?

I've heard many people using both 3.73's, and/or 4.09/4.10/4.11's

Who's got what and what do you like/dislike about your choice? Also, what gear and RPM do you pass through the traps at? And what RPM do you pull at say 80mph on the highway?


[Modified by Hi-psi, 9:21 AM 8/12/2002]
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Old Aug 12, 2002 | 10:50 AM
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There is no "best" gear ratio, it all depends on what you like. What do you want out of your swap?
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Old Aug 12, 2002 | 11:01 AM
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Default Re: (scorp508)

Based on other's experiences, what ratio(s) work "best" with this or similar combinations.......
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Old Aug 12, 2002 | 11:32 AM
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Default Re: Best gear ratio..... (Hi-psi)

Do you have microsoft Excel? I've got a spreadsheet worked up that will tell you the answers to all of your questions. You can just punch in a new gear ratio and it recalculates. It will also work for tire size, etc. Just fill it out and look at the numbers.
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Old Aug 12, 2002 | 11:39 AM
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Default Re: Best gear ratio..... (Nathan Plemons)

Nathan,

Please send that file this way!

Thanks

Neal
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Old Aug 12, 2002 | 11:43 AM
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Default Re: Best gear ratio..... (Arisa)

This site is VERY helpful for all of you number crunchers........
http://www.bgsoflex.com/auto.html
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Old Aug 12, 2002 | 11:45 AM
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Default Re: Best gear ratio..... (Arisa)

It's probably easier if I just do it this way. :cheers:
http://www.wku.edu/~nathan.plemons/calc.xls

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Old Aug 12, 2002 | 12:23 PM
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Default Re: Best gear ratio..... (Hi-psi)

I just had Dana 4.10's installed last week. I am turning around 2000 rpms at 70 mph.
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Old Aug 12, 2002 | 12:25 PM
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Default Re: Best gear ratio..... (STL94LT1)

4.10s
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Old Aug 12, 2002 | 12:28 PM
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Default Re: Best gear ratio..... (STL94LT1)

I just had Dana 4.10's installed last week. I am turning around 2000 rpms at 70 mph.
How much did they affect the performance of the car? Either seat of the pants or track?
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Old Aug 12, 2002 | 12:33 PM
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Default Re: Best gear ratio..... (Hi-psi)

I just had Dana 4.10's installed last week. I am turning around 2000 rpms at 70 mph.

How much did they affect the performance of the car? Either seat of the pants or track?
Haven't been to the track, but with the original GSC's first and second gear are up in smoke. Also, sixth gear is finally usable.
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Old Aug 12, 2002 | 01:29 PM
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Default Re: Best gear ratio..... (Hi-psi)

4.10s took 2/10s off at the track. I go through the traps in 4th gear

Jim Mason
'96 Grand Sport #007
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Old Aug 17, 2002 | 08:13 PM
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Default Re: Best gear ratio..... (Hi-psi)

i have 4.09 in my car. its great for street driving. auto cross it seems like i shift alot on the low speed events..if you do that, i wuld reccomend a 3.73
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Old Aug 17, 2002 | 11:29 PM
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Default Re: Best gear ratio..... (Nathan Plemons)

Hey that spread sheet sounds neat, can you send me it?


Thanks
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