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Old 06-07-2013, 04:19 PM
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1/8th et time

I have a 421sbc 11.8.1brodix ik 200 heads .582.588 lift roller cam 750 demon carb i no its small for thw setup planning on getting bigger carb and headsits in a 87 monte carlo full interior car ford 9in 411 gears 28 10.5 slicks with 150 shot. Its not complete yet just curious on et on motor and spray thanks

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Old 06-07-2013, 04:54 PM
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Way to many varaibles to even come close to a correct ET.or MPH.

only thing I can say 1/8 times will be appro 75 % of 1/4 mile times not 50 % like most would think.
cars around here run low 7s in 1/8 will run low to mid 10s at Commerce .
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Old 06-07-2013, 05:44 PM
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You left out a lot of variables, but -

Figuring 3500lb car including driver, that the cam is a solid roller with duration normally associated with that lift figure (mid-to-high 240's duration at .050"), a stall converter to match what you are doing (4000 rpm or more), you have a proper suspension set-up... My estimate puts you at the 6.90-7.20 ET range in the 1/8th.

Could be a little better,... or a lot worse,........ depending on how much experience you have in the drag world, who made the stall converter, and other general tuning variables (carb, ignition, shocks and springs, tire pressure, etc). If that cam is a hydro roller, add another 3 tenths to that.

1/8th mile to 1/4 mile conversion factor is 1.57.
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Old 06-07-2013, 05:56 PM
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My guess,thats all thats possible, is an 8 flat or a little quicker in the 1/8th.Like Ericnova says,depends?I said a little slower than his guess because of the 4.11 rear gear ratio
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