quick help with gearing please.
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quick help with gearing please.
i took a ride in my buddy's bull nose 351w yesterday, after he put a street fighter c6 trans in it. and the difference from being a standard then going to a built automatic was quite impressive. so now while my motor is is pieces i'm thinking about replacing my old 4 speed with an automatic. i was thinking something along the lines of a super street fighter c6. what i was wondering is what rear end gears do i need to be able to do smokey burnouts and still hit 100 mph pretty quick. my 4 speed will burn em off in every gear and wrap the speedo extremely quick and ask for another gear. its registered for 100 and i can bring it up to about twenty before i get back out of it due to it screaming at me. i have a 74 highboy 428 fe (mildly built) with 4.10 rear end gears, 33 inch tires. so what do you guys think would be a good gear choice? i don't care about gas mileage what so ever. it runs on 116 race gas. the truck is just to remind my friends that there's no replacement for displacement, and to have a good time in.
oops almost forgot i will not run my motor past 5500rpms. my dad and brother do it, and say its okay. but its not theres to fix when it decides to come apart.
oops almost forgot i will not run my motor past 5500rpms. my dad and brother do it, and say its okay. but its not theres to fix when it decides to come apart.
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Joined: Jul 2002
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From: Long Island USA
That's a tough call. 4th on the 435NP is of course, 1:1. On a C6, without a lockup converter, it's not going to be 1:1 but pretty darn close.
A quick run with the calculator says 2000RPM is 47.8 MPH. So at 5500RPM, you're running 131MPH. With a torque converter and a C6, it won't be exactly that, but close.
Is that fast enough?
A quick run with the calculator says 2000RPM is 47.8 MPH. So at 5500RPM, you're running 131MPH. With a torque converter and a C6, it won't be exactly that, but close.
Is that fast enough?
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