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

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Old Nov 13, 2018 | 11:08 PM
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Default Look what I found

While I’m waiting for new blender motor to show up, I decided to clean the whole interior. When I ripped the glove box behind the passenger seat where spare tire took is hidden, I found this



i thoughtnit was pretty neat
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Old Nov 13, 2018 | 11:10 PM
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Nice find!

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Old Nov 14, 2018 | 11:05 AM
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What a nice surprise!
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Old Nov 14, 2018 | 02:45 PM
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Cool, all I have found is an old pen and a little change.
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Old Nov 14, 2018 | 05:45 PM
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Cool. The most important option on that list was the $50.00 option for the "performance" 3.07 rear gear ratio.
On an A4 LT1 it turns the SOTP performance (IMHO) from a V6 to a V8.
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Old Nov 14, 2018 | 06:32 PM
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Very nice surprise find! The price was around the cost of a new car today lol.
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Old Nov 14, 2018 | 07:32 PM
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Originally Posted by Mr. Peabody
Cool. The most important option on that list was the $50.00 option for the "performance" 3.07 rear gear ratio.
On an A4 LT1 it turns the SOTP performance (IMHO) from a V6 to a V8.
I knew I had performance gear ratio since it says "G44", which I know its PRO code for performance ratio. Just wasn't sure what the ratio was.
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Old Nov 14, 2018 | 08:33 PM
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Thats a great find!
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Old Nov 20, 2018 | 10:50 AM
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Why would they call a 3.07 "performance"? That's a highway gear! 3.73 or 4,10 now that's performance. Well, for hole shots anyway.
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Old Nov 20, 2018 | 11:04 AM
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Originally Posted by DAVECAD2.0
Why would they call a 3.07 "performance"? That's a highway gear! 3.73 or 4,10 now that's performance. Well, for hole shots anyway.
There is a big difference in gearing between automatic and manual transmissions. Nice find OP.
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Old Nov 20, 2018 | 07:07 PM
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Originally Posted by DAVECAD2.0
Why would they call a 3.07 "performance"? That's a highway gear! 3.73 or 4,10 now that's performance. Well, for hole shots anyway.
3.07:1 is whole hell of a lot more performance then standard 2.59:1...

I think manual car's standard rear end ratio is like 3.30:1 or something like that?
But final gear ratio of 6th gear is 0.49:1, where as 4th gear on automatic car is 0.70:1, so numerical difference between two isn't as bad as you think(I presume? I could be wrong)

Last edited by Mity2; Nov 20, 2018 at 07:08 PM.
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