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    why wont my car do a burnout

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    Screamin'70Impala
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    why wont my car do a burnout

    Post  Screamin'70Impala on Wed Mar 09, 2016 8:54 pm

    hi I'm new to the forum I inherited my grandpas 1970 impala 4 door post 350 2 barrel when I was 12 and she has been my daily driver since I got my license and I plan to keep it that way the rest of my life (hopefully) anyway enough of the introductions
    my problem is I cant get her to do a brake stand I know shes got enough power because when I stomp it from a dead stop it chirps the tires and pulls hard all the way to 75. my 1984 delta 88 with a stock 150hp 307 will do a brake stand all day long I just don't get it
    does it have something to do with the fact that my car has drums on all four corners it feels like the rear brakes come on first and lock the back wheels down so the engine just loads the torque converter and nothing happens bad proportioning valve maybe?
    thanks in advance for your help
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    Sweet Seventy9
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    Re: why wont my car do a burnout

    Post  Sweet Seventy9 on Thu Mar 10, 2016 11:13 am

    What transmission do you have? I had a 71 Impala with a 350 cid engine and a 2 speed powerglide that wouldn't spin the tires even in the rain.


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    Screamin'70Impala
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    Re: why wont my car do a burnout

    Post  Screamin'70Impala on Thu Mar 10, 2016 3:53 pm

    th350 I can get the tires to spin it will just not do a brakestand if I'm coming off a dirt road on to pavement and I give it some gas it will incinerate the right rear tire and pour smoke and in the rain if I give it more than 1/4 throttle taking off from a red light it will just sit there and spin until I back off I just cant make it sit still and do a brakestand
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    Myloth
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    Re: why wont my car do a burnout

    Post  Myloth on Thu Mar 10, 2016 6:12 pm

    It's could be rearend gears you may 2.41 or something in that range. Good point about Powerglides funny thing

    though is my 63 Riviera with a Nailhead and a Powerglide would not spin or burn the tires in drive you had to

    shift it manually into 1st. Maybe it was just the early 60s version though.

    Screamin'70Impala
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    Re: why wont my car do a burnout

    Post  Screamin'70Impala on Thu Mar 10, 2016 6:53 pm

    I have a feeling it has somethin to do with the brakes has anyone out there been able to do a brake stand in a car with manual drum brakes on all four corners
    my 84 delta 88 has 2.41s in the rear and it will do a great brake stand and it only has about half the power of my impala and is a hell of a lot slower but it has discs in the front
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    Re: why wont my car do a burnout

    Post  GM B-Body Forum on Fri Mar 11, 2016 1:28 am

    Welcome aboard, brakes could be an issue, drums love to lock up, especially when warmed up, could be proportioning valve. Being that its a 1970 350 it should have decent compression before the 72/73 low compression motors, if its not in the brakes next guess would be motor, may need more timing, carb could be a tad out of tune, but could be many things. Thing is with the delta 88 it has a 4 speed, a really low first gear. But that impala should be able to melt that tire off!


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    Screamin'70Impala
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    Re: why wont my car do a burnout

    Post  Screamin'70Impala on Fri Mar 11, 2016 7:13 am

    thanks I think ill try the proportioning valve be cause ive got her tuned pretty well and yes 9 to 1 compression 441 heads shes by far the fastest car that I or my family own and actually the delta was ordered with a 3 speed th250 I'm planning a 200r4 swap in the future

    Screamin'70Impala
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    Re: why wont my car do a burnout

    Post  Screamin'70Impala on Fri Mar 18, 2016 4:25 pm

    I fixed it one of my self adjusting levers was broken

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