Thread: 4-53 supercahrger help!!!

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How could this be to small, b&m has a 171 ci supercharger and they put them v8 I think this one is 212 ci Sounds like this might work if I spin It real fast.

Sounds like you may have two doorstops at the moment. I don't think anyone makes manifolds and drives for the 6V71 and 8V71 blowers either, this is a different case style than the normal 6-71 inline blower and the aftermarket offshoots.

You're correct about spinning the 4-53 blower faster, from a theoretical standpoint. The 53 series already was "high" RPM, twisting to a rated 2800 RPM at full load. But the faster you spin it the less efficient it becomes. I'd guess you'd have to drive it 50% over just to get 5 lbs of boost. As the pumps efficiency drops this extra energy converts to heat, which raises the air temperature being supplied to the engine.

While you can continue on with the project I don't think you'll be happy with what you end up with, and it's going to cost a lot more than if you stay with a standard (off-the-shelf) 6-71 configuration.

Sorry to be a stick in the mud.

Regards, Mark

At some point it becomes prudent to "cut ones loses." It appears that this 4-53 isn't a unit that is readily adaptable or suitable to your engine, so why continue putting money into it? I don't think you are going to be able to find all the pieces to make it even functional, and from what BDS says, even if you could it would provide no power increase.

I know human nature is to try to make the best of a bad situation, but to throw good money after bad is not the way to go.

If Weiand and B & M only use the rotors out of this unit, and nothing else, that should tell you something. Before you start spending one dime more, call some of the expert companies, like I did for you today, and then decide. You can always put it back on Ebay and maybe get some or all of your money back.

Don