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Old 05-10-2010, 01:08 PM
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1.8 currently
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Old 05-10-2010, 01:11 PM
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well, i would look into your tune being your problem. What altitude are you racing at?
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Old 05-10-2010, 01:30 PM
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4.56 are going to wake it up alot.
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Old 05-10-2010, 01:38 PM
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Originally Posted by MPFD
Jaws Just Emailed me and told me their 4.30 gear is on national back order, go figure.
So I told them to send me a 4.56, I know its not a big jump but did I go to deep???

I really liked the idea of running 74 mph at 2500 in OD... I will be just short of that now.
Plus with me 4l60e's low 1st gear is 4.56 gonna get me outta first gear to quickly?
love my 4.56s 65mph at about 2400rpm on a 30" tire. i can't remember what i cross the traps at for sure but its a pretty good rpm in 3rd...
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Old 05-10-2010, 01:41 PM
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I think it will be perfect for my next cam its pretty big..
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Old 05-10-2010, 01:41 PM
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how big? or are you one of them guys?
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Old 05-10-2010, 01:45 PM
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being that it was a custom I am kinda one of those guys, I paid a pretty penny for the design.
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Old 05-10-2010, 03:25 PM
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I think with a looser converter and 4.56s you could hit 12.7s... Aren't those pt converters 258mm?
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Old 05-10-2010, 03:26 PM
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Originally Posted by dlt76028
I think with a looser converter and 4.56s you could hit 12.7s... Aren't those pt converters 258mm?
Yes they are, I think the current gear is holding me back too. The 4.56 hopefully will help.
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Old 05-10-2010, 03:27 PM
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And more importantly, what happened at the track? What were your IATs? What was your ECT? Any KR? Track prep? DA?
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