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#1
07-13-2000, 04:07 PM
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I have a 76 T/A with a 455 torker,holly 750 vac., crane came 218@50 in/ex 499 lift w/1.65 rockers, slightly ported 670 heads,headmen 1 3/4 headers, 3.73 gears. with a 4-sp super t-10 it went 14.65 through the muflers@100 mph, and 13.69@107 mph open headers on street tires spnning through 2nd gear.......then i cracked the case on the trany (that had 7 passes on it from a rebuild)......my question is now with a th400 and a 2200 stall speed, what kind of numbers can u guys guess it is cappable of????
thax, chrispe chris.x.petersen@amex.com pchris@frontiernet.net |
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#2
07-13-2000, 04:07 PM
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I have a 76 T/A with a 455 torker,holly 750 vac., crane came 218@50 in/ex 499 lift w/1.65 rockers, slightly ported 670 heads,headmen 1 3/4 headers, 3.73 gears. with a 4-sp super t-10 it went 14.65 through the muflers@100 mph, and 13.69@107 mph open headers on street tires spnning through 2nd gear.......then i cracked the case on the trany (that had 7 passes on it from a rebuild)......my question is now with a th400 and a 2200 stall speed, what kind of numbers can u guys guess it is cappable of????
thax, chrispe chris.x.petersen@amex.com pchris@frontiernet.net |
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#3
07-13-2000, 08:35 PM
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I don't know, but if you dropped nearly a second in ET and gained 7-MPH in trap speed just by uncorking the exhaust, you may want to replace the exhaust with something that flows better
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Just a blind squirrel looking for a nut. |
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#4
07-16-2000, 09:29 PM
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Dito on the exhaust system. Going from a 4 speed to a T-400 probably won't change your ET much at all especially if you are going to use a loose converter. You will probably loose a couple of MPH due to converter slip. You really need to stop the tire slippage before you can really know the potential of the combination. And when you say slightly ported 670's well most people have no way to know what that means without having flow numbers and have an idea on the quality of the head work. If you plan on regular trips to the track I'd definately go with the T-400.
Tim Corcoran
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Tim Corcoran |
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#5
07-18-2000, 07:55 AM
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I'm going out on a limb and say if you use a GOOD 2200/2500 covertor it should run in the 13.50 range if you can control the wheelspin and GET a BETTER exhaust system. Later,
http://Pontiacdude.cc |
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