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Thread: eng/trans combo

  1. #1

    eng/trans combo

    ok i have a 383 sbc it's a 13 to 1 compression motor with all eagle parts, it has the pro action heads 208/160 ported and polish with 235 runners , i have two transmissions one is a 1.76 p/g and the other is a 350 both with transbrakes i also have two torque converters one is a 8" 4500 the other is a 9" 5000 stall. the rearend is a ford 9" with 4.71 gears the car is around 3200 pounds. how would you set it up for 1/4 mile racing i also need your help with tire size. and carb thanks

  2. #2
    Senior Member SENIOR BUILDER
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    have you done any dyno work, what kind of rpm will you be turning ?
    .




    New build, we`ll see what we get. lol

  3. #3
    Senior Member RACING JUNKIE
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    I am going to suggest the glide. The 1st gear in a 350 will hit way harder. For consistency, go with the glide. If you want all out ET, go 350 to start, but the glide may surprise you. On the converter, there could be a couple factors. In most cases, guys that we do work for with a similar size motor and combo have found luck with a good 8 inch.

  4. #4
    no i have no ideal no dyno info at all. dont know what kind of hp or rpm to run or anything.

  5. #5
    if you had to guess what kind of hp and et's this car and combo would run.

  6. #6
    Senior Member RACING JUNKIE
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    You didn't say if alchol or gas, but the PG will be more consistent. I don't know if you have enough gear. I run 14X32's 5.43 gears, PG 5500 stall, and a 377" on alcohol. Car weighs 3250lbs, runs 6.52 1/8 and 10.59@ 125mph.
    it's what works for me.

    Zip.

  7. #7
    it's gas with a mighty demon carb, and i was thinking i had to much gear. right now i have 28x10.5 et drags on it.

  8. #8
    Senior Member RACING JUNKIE
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    The 28.5 tire definately changes the calculations, i have in the past ran a 10.5X28" MT with a 4.86 gear in a 66 nova with a 406 and 377. Ran as fast as 10.31@129.85, but the RPM was in the upper 7,000's. The car weighed 3050lbs. Always with a 5500 converter, that car had a turbo 400 with t'brake. Funny thing was i started out with a 355" and 5.93 gears and had a 9200 chip in it. It ran a 10.79@126MPH and i put about 200 passes on the motor before a rod bolt backed off (alum rods) and it looked like a gernade exploded in the pan, i did save the heads,cam and the intake, nothing else. We found rod bolts and caps,pieces of pistons and 6 qts of oil on the track, but it was fun before it all ended. That was over 20 yrs. ago.

    Zip.


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