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post #1 of 4 (permalink) Old 09-21-04, 02:45 AM Thread Starter
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351 coupe

My superbird coupe runs a 351 clevo which we are expecting will produce around 250rwkw (so far its done 208.8rwkw, but the exhaust had a couple of restrictions and the 750cfm street avenger wasnt opening the secondaries properly). thats now been fixed, with the addition of a 750DP and some more exhaust tweaks we will see if it gets 250rwkw this friday night. The diff ratio is a 3.9, box is a toploader and the rego papers say it weighs 1400kg.

Any ideas of what quarter mile times to expect with such a combo?

ta

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post #2 of 4 (permalink) Old 09-21-04, 03:29 AM
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Re: 351 coupe

Sounds at least 200kg light for a coupe, the diff ratio will hold you back a little, but it should pull a 12 im guessing, maybe an high 11 with 4:11 gears.
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post #3 of 4 (permalink) Old 09-21-04, 04:09 AM
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Re: 351 coupe

Don't go on the rego papers are they are normally so far out its not funny. Stick it on a weigh bridge.

XBWGN's XB coupe is 1490kgs.

Brenden

XB Fairmont (street car) 11.07@123.02mph.
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post #4 of 4 (permalink) Old 09-21-04, 04:13 AM Thread Starter
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Re: 351 coupe

Thanks guys, good tip re weight. I thought 1400 sounded a bit optimistic.
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