Ever seen a twin supercharged car?
April-4th-2002, 06:26 PM
#1
Half-assed sport 20
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Ever seen a twin supercharged car?
Everyone's seen twin turbo supra's and rx-7's but, has there ever been a twin supercharged car (either from the factory or a project car)? Is it even possible to have two superchargers on ONE engine?
April-5th-2002, 06:28 AM
#4
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Originally posted by PseudoRealityX
GNX....GSX is a mitsubishi
Most twin superchargers are on large V motors. I believe Aston Martins are about the only ones you'll find now. there is NO point to doing it on a small motor like ours.
GNX....GSX is a mitsubishi
Most twin superchargers are on large V motors. I believe Aston Martins are about the only ones you'll find now. there is NO point to doing it on a small motor like ours.
http://www.buickgsx.net/
April-5th-2002, 06:33 AM
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Lancia made a Group B rallycar with a street version that had BOTH a supercharger and a turbocharger. It is 4wd and weighed about 1900lbs. The supercharger would be used for low rpm boost, then at around 5-6000rpm(redline was 9000rpm) it had a bypass valve that shifted to the turbo good for that extra 30hp. The car started at 450hp but 550 to 600 was possible. 0-60 in 2.8 sec on the dirt
April-5th-2002, 06:34 AM
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I Can't Find My Pants
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Whoa whoa. Jesse = wrong. My whole world is now thrown into turmoil.
April-5th-2002, 06:36 AM
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How in the hell did they program that bypass valve... that seems pretty tricky... too slow, and you've got a definate drop in HP for a split second (an eternity in racing time), too fast and your engine just became a pipe bomb!
April-5th-2002, 06:38 AM
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April-5th-2002, 05:12 PM
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Originally posted by PseudoRealityX
D'oh
D'oh
)Usually, twin superchargers are used for volume, efficiency, and hood clearance issues. There are three ways to get big volume. You could use a single BIG supercharger, which would be efficient, but wouldn't fit under most hoods. Or, you could use a single small supercharger and spin in very fast, but that isn't very efficient. Or, the last option is to use two smaller superchargers and put them next to each other (parallel operation), and they'll fit under a hood. See, easy.
My cousin had a twin supercharged all-aluminum 511 (ex-Can Am motor) '70 Chevy Nova SS back in the mid-70's. It all fit under the factory cowl induction hood. Streetable, probably in excess of 1000 hp and 1200 ft.lbs. On 10" slicks, it ran the 1/4 in the low 9's at 150mph. Or, on cheater slicks, would carry the front wheels across an intersection. Top speed was about 175 mph (according to police radar), limited as much by gearing and aerodynamics (lift) as by power.
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