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Old 05-01-2008, 12:48 AM
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dual superchargers

i guess i have to much time on my hands.i picked up a b&m 144 supercharger that has a adapter to bolt it to a four barrel.so now it gets weird im thinking of getting a cross ram manifold for a sbc.making another adapter myself i have a nice pattern.then bolting 2 144s on top of the cross ram .i have found similar setups but not using a mini blower.somebody please tell me how do you think it would work.i know it would look awesome and still have a low hight.

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Old 05-01-2008, 01:59 AM
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I think it would work great and look great. I also think you have too much time on your hands.

I can visualize a couple of idler pulleys on each side to get full belt "wrap".

Last edited by techinspector1; 05-01-2008 at 02:05 AM.
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Old 05-01-2008, 04:44 AM
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lot of the old show cars have duel blowers but think they were just that for show. ive seen a mustang and a gto on utube with duel blowers these were stacked on top of each other
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Old 05-01-2008, 11:40 AM
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all show, no go

It is a great idea for a show car. It is a terrible idea for a real-world driver. The length of the drive belts would be in miles. Most of the cross ram intakes offset the carbs, so it would require one blower with a longer snout than the other.

BTW, do a search on the B&M blowers. Very few serious builders use them. The two-lobe design is cheap to produce, but not particularly efficient.

As always, your car, your money, your decision.

thnx, jack vines
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Old 05-01-2008, 11:51 AM
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It's been done, back in the '60's, I believe Tony Nancy ran twin blowers opposing each other at 45 degrees feeding into a common intake plenum on a fuel rail. That was the days of the freight train side by side and inline twin engine fuel diggers and Don Garlits' fully enclosed full bodied Swamp Rat series and some with cross mounted motors, the good old days of backyard experimentation.
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Old 05-01-2008, 03:12 PM
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Dump the BM and get a real blower...Littlefield Blowers
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Old 05-01-2008, 08:32 PM
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Check this out cool as can be.

http://www.youtube.com/watch?v=fUIqzmoL0Fk&NR=1
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Old 05-01-2008, 08:39 PM
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Take a look in my photo album. I've done twin Whipples and considered doing twin B&M's for a lower cost. There would be too much custom fab to be done and by then you could have bought a quad rotor Whipple setup. And made a whole lot more HP
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Old 05-01-2008, 08:43 PM
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A couple years ago it was done on a Dodge Dakota. he big thing I remember is that it was huge with pulleys way out on both sides and the belt had to be custom made from like 5 belts put together... (I was intrigued sine back then I was on my 3rd Dakota)
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Old 05-02-2008, 06:19 AM
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I've actually been toying with a similar thought. The GM supercharged 3800 motors are now showing up in local wrecking yards. The blowers are pretty inexpensive. Twice 3.8 liters is 7.6 liters, which is just about right for a 455 Olds. I was considering a fabricated intake with a triangular shape that would allow the two blowers to be bolted on at a 45 degree angle. Use the original throttle bodies and MAF sensors on the backs of the blowers, rig a belt, and use a MegaSquirt to run the injection.
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Old 05-02-2008, 11:52 AM
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It'd be cool, if you have the room, to do a dual stage blower set-up. That's when you have a big blower in front of the engine driven directly off of the crank, then have the compressed air fed into the smaller blower mounted in the traditional top-of-the-engine location.
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Old 05-02-2008, 12:37 PM
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Quote:
Originally Posted by RPM
That's awesome! Too bad it will probably never idle right with four, 4 bbl Edelbrocks on it.
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Old 05-02-2008, 01:58 PM
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Quote:
Originally Posted by RPM
With that setup I wouldn't be as worried about the idle but more of how your going to see over those things when the air cleaners are put on. Just look at all the stuff you got to keep polished as well.
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