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4.56 in M6

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Old 04-22-2005, 08:50 PM
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Default 4.56 in M6

has any one done 4.56 in a m6 car. thinking of doing it any info would be great.
Old 04-22-2005, 09:05 PM
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What's your redline?
Old 04-22-2005, 09:19 PM
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Why?! Traction would be... lets just say impossible unless you have some serious slicks with a cake-ton of VHT all over the place. Then after you don finally manage to figure out a way to grab traction out of the hole you would have to shift at what... 25?mph. So in a modded ls1, thats pretty much instantly.
Old 04-22-2005, 09:22 PM
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With a 6000 rpm redline, stock diameter tires, 1 to 2 shift would be at 38 mph
Old 04-23-2005, 12:04 PM
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dont do it on a daily driver though.
Old 04-24-2005, 06:28 PM
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See my posts here:

https://ls1tech.com/forums/gears-axles/229927-daily-driving-w-4-56-gears.html

And here:

https://ls1tech.com/forums/drag-racing-tech/287588-going-4-11s-4-56s-how-much-can-i-pick-up.html
Old 04-24-2005, 06:45 PM
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I'd stick with 4:10's. you could kiss traction goodbye, unless you had some serious rubber.
Originally Posted by 04-ORANGE
has any one done 4.56 in a m6 car. thinking of doing it any info would be great.
Old 04-24-2005, 07:13 PM
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If your shift point is around 7k rpms, I can see using that gear... or if you're always using 28" tires. But with a close to stock rev limiter or 26" tires, there's no way I'd go that high numerically.

Even now with me shifting around 6700-6800 rpms, the highest I'd go on my 26" ET Streets is 4.30s.
Old 04-24-2005, 10:11 PM
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I run 28x12.5x15 et streets at the track.
Old 04-25-2005, 11:23 AM
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Id like to drive around with some 4.88's on 255 M/T dr with an aluminum flywheel. Too much gear for the track but it would be fun as hell on the street.
Old 04-25-2005, 12:20 PM
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good track gear for a high power, 28" tall tire'd car. Bad street gear. I know a few guys who have ran it locally. One is almost strictly a track car, the other always ran a 28" et street.
Old 05-07-2005, 05:16 PM
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im running 4.56s in an m6 car and i like it. i have 255/60/16 bfgs so that may make the difference in traction. not as bad as i thought it would be for a daily driver.
Old 05-07-2005, 06:44 PM
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I just ordered 4.56s. i cant hook on the street with 3.42s. but with slicks and suspension mods it'll work and when it does look out!!!!!!!!




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