Originally Posted by brentil
Thanks to werks we know the stock flywheel is 21 lbs.
I was watching an episode of Sports Car Revolution in which they were building up an Acura RSX-S car. Moving to a Fidanza flywheel they freed up ~12HP at the top end. This was after some other mods first though like cams, intake, exhaust.
Yeah, I saw that... they were building a track car. Their goal was something that would be very competetive in SCCA racing.
The cams, intake and exhuast were all done at different times and had individual dyno results.
From their web site: (removed anything not having to do with the Acura)
Does a cat back exhaust really deliver the goods? The answer is revealed amid controversy we did not expect.
Could a Mugen air box actually make horsepower. You may be surprised.
Would you rip the engine out of a brand new Acura? We do as a part of the quest for more power.
Cam shafts make power when properly applied. Just how to do that in a high revving, high tech v-tech is discussed in detail. 8800 RPM anyone?
If you have a limited slip, does that mean you take a partial fall? We install a Mugen piece in the hope that an LSD will make for a shorter trip around the track.
Clutching at straws, we seek more performance from the Acura with a new pressure plate, clutch disc and a very light flywheel from TODA.
They did a dyno on the car after every show to show the improvements.
The Flywheel modifications were combined with some slightly adjusted tuning. They DID increase horsepower by replacing the flywheel. The horsepower gained was peak HP at around 8,000 rpms, but like I mentioned, it was at the expense of some low-end grunt.
But they were building this car as an SCCA track car. Not as a street machine.
They also hurt their acceleration when they went to larger disc brakes. This whole project was done more as a teaching tool for ricers. It was meant to dispel all of the typical ricer mods that people do on their cars. They made it a point to show that by going with larger diameter rotors, that it actually hurt the acceleration of the car. The point being that, unless you actually NEED the additional braking surface (for racing), then don't do this on your street car because you're going to actually go slower...