LT1-LT4 Modifications 1993-97 Gen II Small Block V8

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Old Nov 26, 2009 | 12:36 AM
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im thinking about putting a 456 in my car what do yall think
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Old Nov 26, 2009 | 01:01 AM
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what size tire will you be running with those? 1/8 mile or 1/4? Thats a lot of gear IMO for a 4L60e
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Old Nov 26, 2009 | 08:37 AM
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What do we all think about what?
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Old Nov 26, 2009 | 09:02 AM
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Remember that the rear gear, cam, and converter must work perfectly together to obtain the best results...4.56s with a 26" tire? Yikes, unless you're going to spin that thing to the moon...I run a 226/234 cam, Vig 4000 and 4.10s with 28" tires and cross the traps at a wee bit over 6200 rpms and I'm n/a...You're adding a 100 shot to the mix which usually requires less gear than going n/a...also remember that the 4L60E has a 3.06 first gear...multiply that by the 4.56s and holy hell thats a huge first gear ratio....

Happy Turkey Day...

--Alan
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Old Nov 26, 2009 | 09:09 AM
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Have you raced with your current setup?
What speed are you clearing the traps at?
What tires are you running?
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Old Nov 26, 2009 | 09:51 AM
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1/8 mile it run 7:67 at 93.69 and the size tire is 27/11.50 quick time pro
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Old Nov 26, 2009 | 10:01 AM
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Originally Posted by darrell hoagland
1/8 mile it run 7:67 at 93.69 and the size tire is 27/11.50 quick time pro
Ok, so no plans to race 1/4, you want to optimize for 1/8 mile runs?
Is that 7.67 is an N/A time? Or are you at a high altitude?

Trapping at 94mph with 4.56 and a 27x11.5 is going to put you in around 6000rpm in 3rd.
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Old Nov 26, 2009 | 10:31 AM
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[QUOTE=James Montigny;12546257]Ok, so no plans to race 1/4, you want to optimize for 1/8 mile runs?
Is that 7.67 is an N/A time? Or are you at a high altitude?


n/a, i went 7:10 on the spray and yes only 1/8 runs

Last edited by darrell hoagland; Nov 26, 2009 at 10:37 AM.
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Old Nov 26, 2009 | 08:26 PM
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Good for only 1/8th mile runs. The car would be absolutely boring to me other than running 1/8th mile.
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Old Nov 27, 2009 | 08:15 PM
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Originally Posted by moderate Z28
Good for only 1/8th mile runs. The car would be absolutely boring to me other than running 1/8th mile.
different folks differnt folks
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