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

3.73???

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Old Sep 11, 2005 | 11:43 PM
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Default 3.73???

Need your thoughts, thinking on going with the 3.73's rather than the 4.10's. I have a 91 six speed. Scheduled to go in the 16th of this month. Vette is an everyday driver with one weekend a month catching some 1/4 mile track action.
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Old Sep 11, 2005 | 11:56 PM
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With an L98, I wouldn't go lower than the 3.73's.
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Old Sep 12, 2005 | 12:17 AM
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3.45's if the car is stock or even mildly modded. no lower.

my L83 crossfire is a totally different car and would benefit more from those gears than a L98 car. i had 3.54's and it improved all around at the track and might have wanted 3.73's!the L98 is just a motor that doesn't need to rev in stock or mild modded form to go fast.
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Old Sep 12, 2005 | 01:13 AM
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What are your mods, if any?
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Old Sep 12, 2005 | 01:33 AM
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Unless you are gonna straight up drag.... don't even think about 4.10's. 3.73's will give you a major diff. Enjoy
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Old Sep 12, 2005 | 02:19 AM
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L98 with M6 and 3.73 here...i like them very much!!!
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Old Sep 12, 2005 | 10:39 AM
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i have 3.07's in my 4+3, i have been told by MANY guys with L-98 knowledge that, that is the gear to have....with a ZF6 i wouldnt go any higher then a 3.45.

4.10 are going to make it slower, i would think 3.73's would make it slower as well if u plan on dragging it. from what i have seen and heard with this the 4.10's and 3.73's u will have to shift into 5th if you 1/4 mile it...

Last edited by 88BlackZ-51; Sep 12, 2005 at 10:55 AM.
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Old Sep 12, 2005 | 10:40 AM
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Originally Posted by Fancyazz
my L83 crossfire is a totally different car and would benefit more from those gears than a L98 car. the L98 is just a motor that doesn't need to rev in stock or mild modded form to go fast.
The stock L83 doesn't wind out or make any more power at higher rpms than the L98. If anything the L98 has the edge, stock. As a daily driver, the 6 speed has stiff enough overdrives to handle the lower gears, but probably not for those monthly 1/4 bashes. Do some math. Check your rpms at your 1/4 mile mph with the different rear end ratios, and compare them with your present shift point rpms. You want to finish the 1/4 in 4th gear.

RACE ON!!!
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Old Sep 12, 2005 | 10:50 AM
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Originally Posted by 88BlackZ-51
i have 3.07's in my 4+3, i have been told by MANY guys with L-98 knowledge that, that is the gear to have....with a ZF6 i wouldnt go any higher then a 3.45.

4.10 are going to make it slower, i would think 3.73's as well if u plan on dragging it.
Why 3.07's with the 4+3? Why 3.45's with the 6 speed? Why 3.73's for dragging? What ET will it turn with each set of gears? How much horsepower will it make? Will it beat my brother-in- laws Grand Sport?

RACE ON!!!
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Old Sep 12, 2005 | 10:55 AM
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i have a airfoil an turbulater i will blo all ur doors off no problem lol



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Old Sep 12, 2005 | 11:00 AM
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Originally Posted by CFI-EFI
Why 3.07's with the 4+3? a 2.59 isnt enough gear, and a 3.73,4.10 isnt either Why 3.45's with the 6 speed? Why 3.73's for dragging? huh! u make no sense, 3.73's will make u switch into 5th. What ET will it turn with each set of gears? you tell me..... How much horsepower will it make? i have no idea, you tell me..... Will it beat my brother-in- laws Grand Sport? u tell me, my brother in-law doesnt have a grandsport.

RACE ON!!!

sorry man, your question dont make sense....but i do know a fact that the 84 model year are the slowest of the C4's.

how am i supposed to know how much horsepower it will make? and how am i supposed to know if its faster then somebody's brother in-laws grandsport.

Last edited by 88BlackZ-51; Sep 12, 2005 at 11:05 AM.
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Old Sep 12, 2005 | 11:01 AM
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Originally Posted by cuisinartvette
i have a airfoil an turbulater i will blo all ur doors off no problem lol



Yeah, and don't forget about that thermalflangistic speed booster... oh the the fairy dust
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Old Sep 12, 2005 | 11:54 AM
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Originally Posted by 88BlackZ-51
sorry man, your question dont make sense....but i do know a fact that the 84 model year are the slowest of the C4's.
I are OKAY with that!

Originally Posted by 88BlackZ-51
how am i supposed to know how much horsepower it will make? and how am i supposed to know if its faster then somebody's brother in-laws grandsport.
Alright. Forget those two. What about the ETs? Why different ratios with different manual transmissions? Somehow when you transfered my words, as a quote, it got jumbled up. There are "things" I didn't write, inserted and jumbled into into my quote, that I didn't type.

RACE ON!!!
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Old Sep 12, 2005 | 12:10 PM
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umm, i am confused man!

i will leave it at that.

u dont want to be in 5th at the 1/4 mile right? well with a 3.73's or a 4.10 gear on a stock of even mild modded L-98 u will be....
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Old Sep 12, 2005 | 12:43 PM
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Originally Posted by 666Vette91
Need your thoughts, thinking on going with the 3.73's rather than the 4.10's. I have a 91 six speed. Scheduled to go in the 16th of this month. Vette is an everyday driver with one weekend a month catching some 1/4 mile track action.
I think you'll be happy rowing through that 6 speed with either set while daily driving, but the 3.73's would be better for the strip (and even they might be a little too steep). There is a formula (I sure as h3ll don't know it) where you can plug in your RPM, tire diameter, gear ratio, etc. and come up with a MPH for any given combo. The MPH can help you target what 1/4 times you might expect from the different gear ratios.

IMHO, if you aren't looking for the quickest ET's possible, the 4.10's will be a lot of fun.
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Old Sep 12, 2005 | 01:51 PM
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Originally Posted by 88BlackZ-51
umm, i am confused man!
How did that happen? Did it happen when you altered my quote and you put words into my mouth?

Originally Posted by 88BlackZ-51
u dont want to be in 5th at the 1/4 mile right? well with a 3.73's or a 4.10 gear on a stock of even mild modded L-98 u will be....
RIGHT??? Are u asking me, or telling me? Why wouldn't u want to be?

Why different ratios with different manual transmissions?

RACE ON!!!
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Old Sep 12, 2005 | 02:17 PM
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Originally Posted by 88BlackZ-51
from what i have seen and heard with this the 4.10's and 3.73's u will have to shift into 5th if you 1/4 mile it...

I wouldn't agree with you....I had an 3.73 in my '95 ZF6 and it did 135mph in 4th @6200rpm at the finish line...
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Old Sep 12, 2005 | 02:36 PM
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some people seem confused, gears add no HP they just change the way hp is manipulated
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Old Sep 12, 2005 | 02:54 PM
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I was thinking about getting 3.73s also my l98, which is completely redone (heads,cam,intake,exhaust). what are you looking for to know that it is a good gear ratio to go with? Are you looking for where in your rpms you have the most power? Can that be done with a torque converter also? Thanks for any info!
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Old Sep 12, 2005 | 04:06 PM
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Originally Posted by CFI-EFI
How did that happen? Did it happen when you altered my quote and you put words into my mouth?

RIGHT??? Are u asking me, or telling me? Why wouldn't u want to be?

Why different ratios with different manual transmissions?

RACE ON!!!

whatever u say. just mentioned to the post started that a 4.10 or 3.73 isnt the gear for the track.
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