I've been around a lot of ATI and Vortech Supercharged C5's and at idle they all whine like something is wrong with your car.....kinda like a steering pump belt squeel.....they cost $6-7,000.00 and up.....depending on other mods done at the time of installation.
If you want high RPM HP, they do a great job as long as you can live with a sound at idle that most people will think there is something wrong with your car. Also, they have had a lot of belt problems and require race gas or the Torco Octane booster.....you don't want knocking at high RPM
I was at A&A's first dyno day and there were a bunch of S/C'ed cars there. A lot of knocking, belts thrown and maf 's blown off these cars. One guy told me he wished he never put one on his Z06 : -(
A better alternative for many people is the Magnacharger, which will provide about 100-130 additional horses.... Some guys are getting 'em up to 530 at the rear wheels with lotsa mods and using smaller pulleys, and lotsa tuning. At higher blower speeds a lot more hot air is produced. If you go this route, get the innercooler model.
John Page (John Lingenfelter's Son-in-law.) at 21st Century Musclecar in Dallas does a lot of Mags and really knows his stuff. So does Andy Green @ A&A Corvettes in Oxnard, CA
The Mag idles just fine with little noise. You can really hear the S/C whine under acceleration. Gobs of torque at low rpm and under the curve. But, they run out of breath at higher rpm's. Cost is about $6,500.00, but you also need a new high rise hood. Motor City Mold in Ohio has a good one in Carbon Fiber for about $1,200.00.
The Mag is the best looking unit as it sits on top of your engine. Comes painted or you get it in a polished finish. You'll win awards at car shows :yeadog: The centrificals look good too, but not so much in your face great looks.
So low and mid range power is phenominal (that's where most of your driving is done). The centrifical SC's develop their power in the upper rpm range and are great at the Track.
Turbo's are the best way to go, but they cost lotsa $$$. I've been told the LPE turbocharger units last about a year because they are located in a high heat area deep in the engine compartment and burn up. I think the LPE TT is over $25,000.00 installed.
Another way to go is with a 383 forged stroker motor. They are getting 550 HP at the wheels. Cost is about $10-15,000.00, depending on parts used and who does the work. Balancing and blueprinting is critical, so if you go this route go to a Profession Engine Builder.....not someone working out of his garage.....although some of those guys are pretty darn good!!
HTH
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