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  1. #1
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    Default Supercharging C5's

    Anyone care to share their experiences with having supercharged their C5? I had mine supercharged by a certifed Callaway dealership and was told that the drive train was strong enough to handle the additional horsepower. Although I am a conservative driver who just likes have the power at my disposal, and have never even smoked the tires, I am now faced with the prospect of having to rebuild the automatic transmission. Would appreciate any discussion on the matter.

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    Member gmc_kurt@yahoo.com's Avatar
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    Default salesman lie

    another case of a salesman telling a customer something, in order to make a sell. you should have contacted gm, about it before buying it

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    Member c5y2k's Avatar
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    The discussions I been in on with a few very well qualified people have have resulted in the same conclusion. 450HP for the stock drive train is about it.

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    Member Curious George's Avatar
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    Quote Originally Posted by gmc_kurt@yahoo.com View Post
    another case of a salesman telling a customer something, in order to make a sell. you should have contacted gm, about it before buying it
    Everything I have read says that auto's should be limited to about 400HP and shift at or before 6k to help prolong the transmission. Manual transmission / OEM clutch can take up to about 485HP.

    CG

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    Default

    didn't the maggie come with a drivetrain warranty?

    fwiw..I usually heard 450rwhp if the automatic tranny had a transmission cooler...to control the temps..

    I would imagine...trying to contact the installer and see what they say...

    Otherwise there are some very good choices for rebuilt heavy duty transmissions..

    I know leadfoot over at www.c5forum.com just had a new heavy duty transmission installed and he might be able to give some insight...

    Good luck

    JB

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