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Replace flywheel or not?

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Old Jun 3, 2005 | 03:21 PM
  #1  
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Replace flywheel or not?

I have an 03 Evo with 11,800 miles on the clock. I just purchased an ACT clutch and was wondering if I should replace the flywheel as well. Would it be possible to just have the flywheel resurfaced? The car isn't driven that hard, with only two passes at the track. Modifications are 3"buschur TBE, DNP O2 housing, Buschur intake, Hallman MBC @ 21psi, TurboTrix ECU tune. I am hoping to be able to save a little money and not have to replace the flywheel, the STi is still stock and begging for parts. I really don't want to get into the install and realize that the stock flywheel is beyond repair or something like that. Your input is appreciated. Thanks in advance.

Matt
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Old Jun 3, 2005 | 03:31 PM
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well i wouldent get it make sure the flywheel isnt warped if its in good condition no need to buy a flywheel the stock one is light as it is act is a great clutch i have it and never regret it
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Old Jun 3, 2005 | 03:37 PM
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^2nd that. Theres not that much of a difference in weight. Not worth the money unless your really serious about racing. Save your money and buy something else.
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Old Jun 3, 2005 | 05:12 PM
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Thanks for the feedback. I guess I will see what the flywheel looks like tomorrow.
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Old Jun 3, 2005 | 05:21 PM
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A good majority of the clutch "failures" we see are not due to the clutch at all, but are because the OEM flywheel is warped. WORKS highly recommends replacing the flywheel with an alternative.
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Old Jun 3, 2005 | 09:17 PM
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Yea, but that fly wheel warps cause the clutch doesn't disapate heat well....
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Old Jun 4, 2005 | 05:38 PM
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And if there is no tiny crack presents on flywheel...its fine
i saw alot on stock clutch . evo flywheel is heavy duty,

Last edited by yesevo; Jun 4, 2005 at 05:52 PM.
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Old Jun 4, 2005 | 05:49 PM
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Might as well change out the flywheel so you would have to pay twice labor when you decide later on...Many shops RECOMMEND changing out clutch and flywheel the same time...Especially with the Evo's tranny, you know how much labor that is? One word two sylabols...ALOT!
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Old Jun 4, 2005 | 05:53 PM
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dont change it. u are wasting money, you may change it on 2nd clutch job,
i beat the hell out of it and flywheel was in good condition while clutch was terrible
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Old Jun 4, 2005 | 06:25 PM
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Turbo mag recently looked over the EVO 8 clutch failures and said it wasn't the clutch, but the flywheel, which didn't dissipate heat quickly enough. I would replace it.
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Old Jun 4, 2005 | 08:22 PM
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^2nd that, aluminum flywheel with a steel surface is better for dissipating heat
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Old Jun 4, 2005 | 09:27 PM
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Originally Posted by mooreboost
Turbo mag recently looked over the EVO 8 clutch failures and said it wasn't the clutch, but the flywheel, which didn't dissipate heat quickly enough. I would replace it.
You can't always believe what's in the funny papers. Turbo (and other magazines) are out to sell magazines. I have read some pretty rediculous things in magazines.

While the flywheel is not the most stable in regards to warpage as some flywheels, it is with a purpose. If it were thicker and heavier it would warp less but throttle response would suffer. If it were made out of grey iron is would warp less, but be more prone to catatrophic failure. Keep in mind that if you are getting the flywheel hot enough to warp it, then you are putting the same amount of heat into the pressure plate, which mean the pressure plate is getting warped just as bad as the flywheel or worse. Simply put: The stock flywheel is a good piece if you do not overheat the clutch by too much slippage.
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Old Jun 5, 2005 | 03:19 AM
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Originally Posted by ACTman
You can't always believe what's in the funny papers. Turbo (and other magazines) are out to sell magazines. I have read some pretty rediculous things in magazines.

While the flywheel is not the most stable in regards to warpage as some flywheels, it is with a purpose. If it were thicker and heavier it would warp less but throttle response would suffer. If it were made out of grey iron is would warp less, but be more prone to catatrophic failure. Keep in mind that if you are getting the flywheel hot enough to warp it, then you are putting the same amount of heat into the pressure plate, which mean the pressure plate is getting warped just as bad as the flywheel or worse. Simply put: The stock flywheel is a good piece if you do not overheat the clutch by too much slippage.
Dirk,

Was your opinion on the EVO stock flywheel? I heard is forged and not cast like the DSM flywheels, which were known to crack. I recently purchased your clutch and bought a new EVO stock flywheel to be on the safe side. Do you see the EVO stock flywheels having the same problems as the DSM ones?
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Old Jun 5, 2005 | 07:34 AM
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I installed the clutch yesterday. The stock clutch was toast, but the flywheel was okay. I took the flywheel to a shop and had it turned. It should definately last quite a while longer. When I got everything apart, I realized that my stock throwout bearing was shot. Any advice on what would cause this? Thanks again for everyones advice.

Matt
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Old Jun 5, 2005 | 07:46 AM
  #15  
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hey matt, stock flywheel is a dsm piece of ****.u will find this out when ur new clutch ****s the bed,because of da flywheel...bad design.call CENTERFOCE ...da best clutches and flywheels...made in da USA!!! U FEEL ME?
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