what kind of supercharger is this
02-22-2006, 12:03 AM
#5
Drifting
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Originally Posted by torqvette
Yeah but, if you can afford an exotic blower like that, you might aswell use a normal roots type and spend a few hundred to mold in a bigger cowl... personal preference.
02-22-2006, 03:22 AM
#6
Le Mans Master
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I think it is a B&M. Pretty sure that is what I saw when I was looking
at this Vette in person a few years back.
http://www.corvettecenterltd.com/Spe...z_project.html
at this Vette in person a few years back.
http://www.corvettecenterltd.com/Spe...z_project.html
02-22-2006, 04:52 AM
#10
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Originally Posted by Twin_Turbo
how cool an old magna charger w/ dellorto side drafts! There was one on ebay some time ago. You don't see those very often
According to my book,
"In his youth, Jerry Magnuson was introduced to superchargers with a very rare Bandimere kit that mounted a GMC 2-71 on a Chevy six. He also raced a 4-71 GMC blown '55 Chevy Gasser. But when he tooled up to build "Magna Chargers" in the early 70's, his intended market was primarily blown fuel drag racing motorcycles. Consequently, his first three-lobe, Roots-type blowers were relatively small. Magnuson was also one of the first to really work at improving the design and efficiency of the Roots-type blower. By using straight, as opposed to "twisted," three-lobe rotors, and straight-cut drive gears, he eliminated the problem of rotor "untwist" and separation at hgh speeds, as well as rotor growth (with an internal strengthening rib in each lobe) so his small blowers could run (and maintain) much tighter clearances and be spun to much higher RPMs. His design also reduced air turbulence in the blower. And the three-lobe rotors also allowed him to increase the blower inlet and outlet for greater volumetric efficiency. According to tests at Garrett Airesearchm the little Magna Chargers attained an overall efficieny of about 65%...."
NOTE: A street 6-71 GMC-style supercharger can expect only an efficiency- at best- of 55%.
Continued, "Then he came up with the impressive looking (and performing) MC-220 for small-block Chevy that actually incorporated two
110 blower in a single case. This blower is slightly smaller in displacement than a GMC 4-71, though reputedly more effcient. Mounted to a four-barrel intake modified with a welded-on intake flange, and fitted with a pair of Mikuni, Dellorto or Weber side-draft carbs, this unit also maintained a very low profile. It cleared the hood of most 80's cars, including Corvettes."
Ok, my typing skills need polishing... I admit. Anyway, I hope this helps...
02-22-2006, 07:21 AM
#11
Pro
Very cool. I saw one of these last year in my neighborhood, on an old wide-body show car. (Massive metal-flake and all 
) I was curious if you could still get parts for them, as they are pretty rare.
) I was curious if you could still get parts for them, as they are pretty rare.
02-22-2006, 08:37 AM
#12
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Originally Posted by TPIShark
Very cool. I saw one of these last year in my neighborhood, on an old wide-body show car. (Massive metal-flake and all ) I was curious if you could still get parts for them, as they are pretty rare.
) I was curious if you could still get parts for them, as they are pretty rare.Why didn't these take off on a larger production scale? too $$$$?
Why isn't there more of them? I personally love the look of side mounted carbs.
Did they have a flaw or issue with the side mounted carbs?
