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Question: Is it worth getting a flywheel?

Here's da theory:

A lighter flywheel gives your car the ability to Rev quicker and Unrev ( not sure if that is even a word) quicker. You will feel small Hp gains out of it, but also a loss in torque... But... A stock flywheel (much heavier, around 17 lbs) gives more torque due to momentum of the 17 lbs (While spinning) as oppose to a 9 or so lbs lightened one. Right... So is it worth getting a lightened flywheel? (Correct me if I am wrong)


(Please Flame, PLLEEEAAASEE!)

 
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it takes more power for a 17 lb object to make 1 rotation than a 9 lb object to make 1 rotation. btw hp is a number derived from torque...

 
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btw where can i get a lightened flywheel?

 
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it's funny when you post and you expect people to flame

 
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I think i heard that Exedy makes one. And I also heard that you can use the same aftermarket flywheel from previous gen civics.

 
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I believe I read in SCC mag that since the flywheel is rotational mass it's actually like taking 200 lbs out of the weight of the car, if its around the same weight savings as that example. So its like having really light wheels. It should help you accelerate quicker. It would definitely be a piece I would consider. Toss in an aftermarket clutch while you're doing this is you might upgrade further in the future. Alas! I cannot offer real world examples though! Anybody, anybody...

 
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I know that if you go to your local Machine shop they can actually shave the flywheel to make it lighter. But see the thing is they have to keep a certain thickness... so a aftermarket flywheel (aluminum) Vs. a Shaved stock flywheel (Steel), the aftermarket one will always be lighter do to the weight of material. Exedy doesn't have a flywheel in production yet, but there are rumors that Jun racing is coming out with one very soon.

 
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DO NOT I REPEAT DO NOT HAVE YOUR FLYWHEEL LIGHTEND. THIS COMPROMISES THE STRUCTURAL STRENGTH OF THE FLYWHEEL AND CAN CAUSE IT TO COME APART UNDER LOAD. THIS IS BAD.

 
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Really? Thanks didn't know...

 
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You can get one from Unorthodox Racing.

 
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umm you best bet would be to lighten ur stock one u can get this done anywhere just make sure its a reputable shop to make sure its balenced correctly...

 
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how about NO scott. lightening a stock flywheel creates stresses and microscopic cracks in the surface which will lead to premature wear/failure. just buy a new one, and dont get the "ultra light" version either. anything over 11 lbs should be fine.

 
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Why wouldn't one get a flywheel less than 11lbs? is it because the engine will not be balanced?

I'm not flaming just want to know.

 
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i dont know if its an issue with teh flywheel, but it may very well be. honda makes their pulleys (and possibly flywheels) with vibrational dampers. a thin little section of cork on a 2 piece part. when you replace it with a part from say, Unorthodox racing, which is a 1 piece aluminum part, you lose that damper. so its no wonder you hear so many stories from civic owners whom upgraded their pulleys and broke their cars soon after.

make sur eyoru flywheel has no need for the damper or doesnt have one before you "upgrade"

definitely not the whole picture, but certainly a small part of it. and something I would definitely make sure i understaood before dropping $2200 on my car, 200 for the wheel, 2 grand to fix the broken motor and restore to stock....

 
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i was unaware that honda made all of there pullies with vibrational dampers, or is this only the crank shaft pulley. and where did you find out that they make them with vibration dampners. just curious.

 
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because too light a flywheel + no torque engine = SLOW.

 

HP is based on how fast the car can travel to a certain amount of speed relative on how heavy the car is. So the time from 0-60 for example, plus the weight of the car will you hp. Now you wont loose power if your car is too light, all you need are wings and what not to produce enough downforce from the wind. Fwd will need the little fenders on the front bumper and the rwd will need the huge wings or for the AWD also. So you can go light and still get good torque from good downforce areos. ?!?! What do you guys think?

 
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crankshaft for sure, i know the accessories dont have it, at least teh alternator doesnt....

im just saying that its important to check the flywheel for that. im not sure. its certainly a consideration.....

 
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unorthodox as well as Clutch masters make light flywheels.... the CM Flywheel is the same as a 92-95 civic... go figure. after extensive testing of my car with the stock flywheel and getting the CM's flywheel put in i got an average of .22 sec in the 1/4that was WITH Nitrous.... so without the juice i dont think it would be as much. the car floats up to the redline really quick with the lighter flywheel in also. i noticed a big difference in top end like on the freeway going from 60-80 was a lot quicker.

 
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Read this: Aluminum FLywheel...JOHN MONNIN'S PERSONAL 3000GT/STEALTH FAQ
Kinda interesting, especially the cons.