What do you think my top speed will be? - Hot Rod Forum : Hotrodders Bulletin Board
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Old 03-15-2003, 01:39 PM
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Post What do you think my top speed will be?

1984 Z28 350CI, TH350 TRANNY WITH b&m shift kit) 3.42 rear end, automatic, i think the cam is an RV cam im not 100% though, im just curious ill prolly never max it out just wondering

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Old 03-15-2003, 03:05 PM
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About 65 mph. Or at least that's what it would seem like if I passed ya! lol

Really, I don't know, there's only one way to find out! You'll do it, thinking about it will make you!
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Old 03-15-2003, 03:28 PM
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3.42 and no overdrive with small tires is what will slow your top speed.

I have 30" tires on my pickup with 3.42 and a TH 350/305. I can run about 110 on a cool evening so you'll be over that :p
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Old 03-15-2003, 07:24 PM
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Purty durn fast I can tell ya!!
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Old 03-16-2003, 07:40 AM
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Try 87 mph @5500 rpm. this is based on your motor having 190 hp, 240 ft lbs torq., with 215r60 15 tires, a th350 and 3.42 rear gears
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Old 03-16-2003, 07:42 AM
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How about 15.81 sec, 86.4 mph in the 1/4
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Old 03-17-2003, 02:58 AM
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dang 15.8 thats REALLY slow lol, btw my motor is suppost to be right around 300hp, its a 350....sort of built up
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Old 03-18-2003, 04:43 PM
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Changing the hp and torque (figured it to be around 360 ft lbs of torq., being it had been modified a bit), that takes you to about 14.13 et , 87.1 mph @5500rpm, and top speed of 87.1 @ 5500rpm. Looks like the th350 is holding you back abit...
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Old 03-20-2003, 03:12 AM
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Try these guys on for size. They helped me to select the proper gear set and tire combination for a top speed run.

www.pchotrod.com
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Old 03-24-2003, 06:13 AM
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for sure 2quik, thats where I got my numbers! great software.
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