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500RWHP A4, 27s or 28s???

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Old 04-14-2008, 11:03 AM
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Default 500RWHP A4, 27s or 28s???

Im running a 3750lb car, dyno numbers are 500rwhp & 49OFTLBS on a mustang dyno unlocked a4 w/3k stall with 370gears in a 9inch. Power comes on really early and shift points are set to 67oorpm. Power starts to drop off right at 6600-6700rpm.

Should i run 27s or 28s at the track?
What should this setup mph and et?

I think this is all the info for and educated guess. Let me know if any more info would help.

Alex
Old 04-14-2008, 09:29 PM
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I think you should run about 127 mph maybe 10.70
I would run 26 inch et drags if it were me that should put you right at redline through the traps(just a guess btw)
Old 04-15-2008, 05:15 AM
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a 28 inch tire, get the car set up on them and never look back.

As for what it should run, should be somewhere in the 10's if the 4ljunkie tranny will stay together at that power level, which I doubt it will for long.
Old 04-15-2008, 09:15 AM
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I'd run whatever you have at the moment, and see what the car traps. I'm running a 4.10 gear, 28's and 150 shot in the Camaro shifting at 7000 and it runs about 133-134.
Old 04-15-2008, 09:34 AM
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One other thing get some weight out of that thing at almost 4000 with driver you are going to break parts launching that thing before long
Old 04-15-2008, 09:46 AM
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My goal with the car was to keep it full accessories. Weight reduction is tough with that goal. I have a tubular front end,no spare,no windshield washer tank and cruise but thats about all i want to part with. I have a built trans,drive shaft,9inch,frame ties. Im hoping it will hold together for a little while.




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