Lightened Flywheel Info
Huh? 
I've owned and driven turbo AWD cars for the last 15 years all of which have had lightened flywheels with 0 ill effects as a result.
What does the flywheel have to do with the rear end? The flywheel is bolted to the crank.
Based on your theory all cars with lightened flywheels, smaller than stock diameter clutch packages like a Tilton or Quartermaster should or will have bad rear ends?
The only cars that I've seen throw check engine lights with flywheels below a certain weight are Subaru WRX's/STI's and that happens randomly on some cars with flywheels that weigh less than 13 lbs. The other cars typically have timing marks on the flywheel (350Z/G35) that aren't lined up properly.
I am yet to see an aluminum flywheel that can be resurfaced. I think you mean that the steel friction surface used on the Fidanza is replaceable.
The addition of lightened flywheel cannot make you lose top end, or gain/lose horsepower. It may help the car rev faster because it removes weight of the crank shaft.
To the OP the downsides to any lightened flywheel will be the possibilty of more gear noise that is transmitted. Also, depending on the weight of the flywheel it may make it more difficult to launch the car or get the car going if you live in a hilly area. All of which is subjective to the car and driver. Some people have issue with it, others don't. Let me know if you have any other questions.
I've owned and driven turbo AWD cars for the last 15 years all of which have had lightened flywheels with 0 ill effects as a result. What does the flywheel have to do with the rear end? The flywheel is bolted to the crank.
Based on your theory all cars with lightened flywheels, smaller than stock diameter clutch packages like a Tilton or Quartermaster should or will have bad rear ends?
The only cars that I've seen throw check engine lights with flywheels below a certain weight are Subaru WRX's/STI's and that happens randomly on some cars with flywheels that weigh less than 13 lbs. The other cars typically have timing marks on the flywheel (350Z/G35) that aren't lined up properly.
I am yet to see an aluminum flywheel that can be resurfaced. I think you mean that the steel friction surface used on the Fidanza is replaceable.
The addition of lightened flywheel cannot make you lose top end, or gain/lose horsepower. It may help the car rev faster because it removes weight of the crank shaft.
To the OP the downsides to any lightened flywheel will be the possibilty of more gear noise that is transmitted. Also, depending on the weight of the flywheel it may make it more difficult to launch the car or get the car going if you live in a hilly area. All of which is subjective to the car and driver. Some people have issue with it, others don't. Let me know if you have any other questions.
The flywheel is rotational mass and while lighter, it will spin faster but as it gets up to speed it will take more force to keep it spinning fast. A heavier flywheel will spin with less force once up to speed. Correct me if im wrong.
I have the Fidanza flywheel and like it alot(9.5lbs). faster rev and rev matching is easy. The Flywheel has a steel plate on it that when you need to you can just unbolt it and throw it away and buy a new one (relatively cheep), I am also running the Fidanza 4.3 clutch and love it. Launchs easy, takes a beeting, and I still daily it no problems.
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k270kmh
Evo Engine / Turbo / Drivetrain
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Oct 28, 2010 06:49 PM
