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Thread: Glide or 400 with BBC GRUDGE CAR

  1. #1

    Glide or 400 with BBC GRUDGE CAR

    i have a 83 olds hurst olds just took a sbc blower motor out and put a 477 bbc in my question is what trans is best the car is a car driven once or twice a month just a few miles here and there but more of a street grudge car and i want the best ets and hardest wheel standing launches i can get . it is just a toy. not a daily driver
    here are the specs

    83 backhalfed hurts olds G body
    454 100 over
    eagle crank
    eagle h beams
    splayed caps
    714 roller
    merlin heads flow 368 @ 700
    13-1 comp
    full roller
    brodix intake
    1150 dominator

    the trans
    400 torbo brake 4500 stall dual balloon plates fully built with sfi bell input 8 clutch packs, harden output and gear sets

    or

    PG brake, 5500 stall dual balloon plates stock case, fully built 10 clutch drum, straight cut gears 1.80 245 lbs line pressure

    the car is a full steel car with glass and a mild steel cage weighs approx 3450 loaded , it has a 33x18.50 et street. and a 4.10 gear .

    again i am only looking for the best et,s on the car do not reaaly plan to make it a bracket car nor a street car , but a grudge car . i plan on using nos in the future about 250 -300 shot .

    i am only gonna keep one of these trans and sell the other, so any help will be greatly appreciated and i thank everyone in advance

  2. #2
    Senior Member MASTER BUILDER
    Join Date
    May 2003
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    North East, Maryland
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    159
    I would Stick with the 400 but this is only my opinon :wink:

  3. #3
    This is what i am thinking as well i like the 400

  4. #4
    Senior Member EXPERT BUILDER
    Join Date
    Aug 2005
    Location
    Tell City, IN
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    356
    The car is too heavy for a glide. Also the th400 has a better 1st gear ratio and will stand up much easier I would think.

  5. #5
    Senior Member RACING JUNKIE jmarksdragster's Avatar
    Join Date
    Jul 2007
    Location
    Florida
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    635
    I have to disagree, the PG will ET better. The 5500 converter will launch the car quicker and the PG will not launch as violent as a TH400. The rotating HP required to turn the TH400 is 15 to 20 horses more. And 3500 lbs is NOT too much weight. Who ever told you that lied to you. I had a 3400 lb Chevelle with a reasonably mild 400 SBC and ran at least a tenth quicker than a TH350. A three speed (ultra light, ultra$) will be marginally faster than a PG in a Comp style car/engine tuned to a narrow RPM range. You will be much happier with the PG.
    Mark Whitener
    http://racingfuelsystems.myfunforum.org
    __________

    Good work isn't cheap, and cheap work can't be good.

  6. #6
    I AM LEANING TO THE 400 BECAUSE OF THE VERSATILITY AND I AGREE THAT IT WILL LAUNCH HARDER DUE TO THE 1ST GEAR . I KNOW IT WILL BE VIOLENT BUT THAT IS NOT A BAD THING. I AM GONNA INSTALL SOMETHING THIS WEEKEND AND GET THE CAR DONE. I APPRECIATE EVERYONES INPUT AS I AM AT ALOSS ON THIS ONE AND JUST WANT THE BEST COMBINATION. THE GLIDE IS A BETTER TRANS BUT I AM CONCERNED IT WILL NOT BE AS VERSATILE AS THE 400. THE 400 WILL LAUNCH HARDER AND I CAN CHANGE THE CONVERTER AND RUN THE 5500 IN THE 400 AND REALLY LAUNCH. I AM NOT TOO WORRIED ABOUT TRACTION AS THE CAR CARRIES A 1.23 60' WITH A 400 BEFORE, SO I DONT WANT TO LOOSE THAT BY GOING TO A GLIDE AS WELL AS BEING A NOS MOTOR I DONT WANT TO GO THRU THE TRAPS AT A VERY HIGH RPM. I WOULD LIKE TO STAY AT 7300-7400 . AGAIN THANKS TOO EVERYONE I APPRECIATE ALL THE INPUT, AND WILL BE WATCHING FOR THE NEW POST BEFORE I MAKE MY FINAL DECISION

  7. #7
    Senior Member RACING JUNKIE jmarksdragster's Avatar
    Join Date
    Jul 2007
    Location
    Florida
    Posts
    635
    Even with the 5500 converter in both the PG will be faster. It will use the power better and lose less in rotating HP.
    Mark Whitener
    http://racingfuelsystems.myfunforum.org
    __________

    Good work isn't cheap, and cheap work can't be good.

  8. #8
    Senior Member RACING JUNKIE
    Join Date
    Sep 2007
    Posts
    4,143
    why not just try em both before you decide. It isn't a big deal to swap out the trans.


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