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Thread: BDS Supercharger Hyper drive need advice.

  1. #1
    Junior SCH Member
    Join Date
    Mar 2011
    Posts
    1

    BDS Supercharger Hyper drive need advice.

    I have a 57 Chevy with a 871 blower on it the parts are listed below. My problem is when I put the car in reverse it goes into what I call hyper drive and I have to stand on the brakes and even then the car is burning rubber trying to back up. But in drive I don't have that problem. I thought that the linkage might be the problem so I disconnected the linkage and it still did the same thing. Any advice would be greatful. I don't know if a vaccum leak would cause the problem but I think I'm going to change my gaskets and see if that helps.
    383 Balanced 8.5 to 1 comp. 4 bolt main conv.
    BDS 871 Blower
    BDS Trans. Pressure Diversion Valve
    60T 8 mil pully
    50B 8 Mil pully
    Sportsman 2 Heads 64 cc
    Hyd Lifters / Roller rockers
    Roller Timing set.
    Edelbrock 650 carb. x 2
    2000 to 2200 Torque Converter
    MSD 8360 Distributor
    MSD 8202 Blaster Coil
    CRN 100052 Cam Kit.
    Mel M-55 HV Oil Pump
    Holley Blue Electric Fuel Pump
    Lnt 301a8lun camshaft
    crank hub
    400 Turbo Hydramatic Stage 2 Trans
    Chrome molly 4130 push rods 1.5 intake 1.6 Exhaust
    Sanderson c56 Headers
    Throttle cables.

  2. #2
    SCH Member
    Join Date
    Nov 2009
    Location
    Lawrence, KS
    Posts
    50
    Disconnect your throttle linkage at the carbs and let it idle, then put it in reverse and see if it does it. I'm thinking that the engine is torquing on the engine mounts and pulling on your throttle. Soggy enging mounts? Other idea is a blown vacuum modulator on the trans but i'm not a t400 guru. I'd still block that off and try it again.

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