Quote:
Originally Posted by BruceWilkie
Adam part of the reason turbo's are easier on parts is the drive method... A procharger engine will need 10 hp of drive for every 100 hp added... 2200 hp worth of mass air to net 2000... 200 hp gets eaten up by the drive...
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Bruce, I'm not sure where your data comes from, but a friend of mine recently ran a 2400 hp capable blower on his blower dyno, and at max impeller rpm, it took nearly 500 hp to turn. That was making around 40 psi on a restriction that simulated a 632 inch engine. Thought you might find that interesting. The blower dyno results are backed up somewhat by the fact that a turbocharged engine of the same displacement at the same boost makes around 500 more hp at the flywheel at the same engine speed. The day we have centrifugal compressors capable of 2500+ hp that only take 200 hp to accelerate is the day that turbo manufacturers start to go broke!
Quote:
Originally Posted by BruceWilkie
they usually dont need or want alot of gear...
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Not true. The combination dictates ratio in a racing application, but the fastest cars are usually running lots more ratio than conventional thinking dictates. Think 5.14 in the rear....