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{WTB} Light weight Flywheel

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Old 03-11-2013 | 10:58 AM
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Light weight Flywheel

Category: Drivetrain
Price: $0
Private or Vendor Listing: Private Listing
Part Fits (you may select multiples): Others
Location (US State/Canada/Int): AL
Item Condition: Used

Hey guys Im looking for a lightweight flywheel,let me know what you got.Thanx Chad
Old 03-11-2013 | 10:09 PM
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none?
Old 03-11-2013 | 11:31 PM
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i just bought the MS through the dealer since there were only a few left in North America.
Old 03-11-2013 | 11:57 PM
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they don't come up used very often, for most people it's a major job to install or remove and then you had to keep the OE flywheel around to make the swap back

can't really go wrong with the ACT Prolite for weight vs $$$, a couple are a bit lighter for more $$$
Old 03-12-2013 | 02:36 AM
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I have a used RB aluminum on ebay.
Old 03-12-2013 | 10:32 AM
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Originally Posted by TeamRX8
they don't come up used very often, for most people it's a major job to install or remove and then you had to keep the OE flywheel around to make the swap back

can't really go wrong with the ACT Prolite for weight vs $$$, a couple are a bit lighter for more $$$

+1 I have the prolite and it's great. Requires a bit more effort taking off smooth but that's to be expected with a lightweight flywheel application.

Best price I found was through THmotorsports.com, it wasn't they're exact website, i found it through a froogle search.
Old 03-12-2013 | 10:38 AM
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I have been using the MS lightweight flywheel since 2005. It is better than the oem, but I would like something a bit lighter when I have the time and money. I may go to a multi-disk clutch just to remove more rotating mass.
Old 03-12-2013 | 11:30 AM
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I've got a local deal set up for a MS but if Im gonna go light, I may as well go 9.5lbs,it seems like alot of money for the MS to only drop a few pounds?
Old 03-12-2013 | 11:41 AM
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Originally Posted by Rx7 Project
I've got a local deal set up for a MS but if Im gonna go light, I may as well go 9.5lbs,it seems like alot of money for the MS to only drop a few pounds?
If you go too light you sacrifice driveability on the street. Reducing intertia makes the car more difficult to launch from a stop. "Race" parts will not always make your car faster on the street. Sometimes they can make it slower or worse than it started.
Old 03-12-2013 | 11:41 AM
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Originally Posted by Rx7 Project
I've got a local deal set up for a MS but if Im gonna go light, I may as well go 9.5lbs,it seems like alot of money for the MS to only drop a few pounds?
Everything MS costs allot with very little in return.

I've been running the prolite for 30k and have had zero issues with it.

The ACT HD clutch is a different story that clutch a pile of ****.

But considering that ACT and exedy are the same thing it might mean I am just a crappy driver.

Last edited by shadycrew31; 03-12-2013 at 11:45 AM.
Old 03-12-2013 | 11:44 AM
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Originally Posted by shadycrew31
Everything MS costs allot with very little in return.

I've been running the prolite for 30k and have had zero issues with it.

The ACT HD clutch is a different story that clutch a pile of ****.
Really? The ACT HDSS has been the clutch of choice for rotaries for over a decade. I've installed tens of them with zero issues. What kind of problems do you have with it?
Old 03-12-2013 | 11:52 AM
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Originally Posted by RotaryResurrection
Really? The ACT HDSS has been the clutch of choice for rotaries for over a decade. I've installed tens of them with zero issues. What kind of problems do you have with it?
Uneven wear on the PP side of the clutch disk, also the T/O bearing they supplied split apart early on in its career which could have lead to other issues.

There was some hot spots and burn marks as well but that was user/install error.
Old 03-12-2013 | 12:01 PM
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Originally Posted by shadycrew31
Uneven wear on the PP side of the clutch disk, also the T/O bearing they supplied split apart early on in its career which could have lead to other issues.

There was some hot spots and burn marks as well but that was user/install error.
In my experience the TOB they supply is an OEM koyo, not a generic/chinese version. Odd that you'd have issues with it going out, they usually last for at least 8-10 years.
Old 03-12-2013 | 12:32 PM
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Originally Posted by RotaryResurrection
In my experience the TOB they supply is an OEM koyo, not a generic/chinese version. Odd that you'd have issues with it going out, they usually last for at least 8-10 years.
Weird... I spoke with ACT they said the hot marks on the PP are fairly normal as long as its not uneven. he said the T/O bearing splitting was most likely the cause of the uneven wear.
Old 03-12-2013 | 02:02 PM
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I might be selling my BHR flywheel with counterweight and exedy stage 1 HD clutch kit AKA MS clutch. PM me if you are interested and what you are looking to pay. Probably want to get 50% of retail but I have not researched the current retail price, so feel free to provide that info.
Old 03-12-2013 | 02:32 PM
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Originally Posted by RotaryResurrection
Really? The ACT HDSS has been the clutch of choice for rotaries for over a decade. I've installed tens of them with zero issues. What kind of problems do you have with it?
I have the HDSS and prolite. It sucked when I first got it, but the tech who did my engine under warranty didn't adjust the clutch resulting in chatter like a ****.

After I adjusted the pedal it's been great ever since, running 2 seasons strong!
By far one of my most favorite clutches IMO. Light pedal feel for the strength!
Old 03-12-2013 | 02:53 PM
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Originally Posted by shadycrew31
Weird... I spoke with ACT they said the hot marks on the PP are fairly normal as long as its not uneven. he said the T/O bearing splitting was most likely the cause of the uneven wear.
You must shift mAd QuIcK yO.
Old 03-12-2013 | 03:05 PM
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Originally Posted by RotaryResurrection
You must shift mAd QuIcK yO.
All of those rotary torques!
Old 03-14-2013 | 01:07 PM
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Originally Posted by Charles R. Hill
Not to argue with you, Kevin, but my experiences with both my own lightweight flywheel on my personal RX-8, and then the tutoring my customers receive when they purchase a lightweight flywheel from me, have been completely opposite of what you describe. I will agree that the "friction zone/window" on the clutch feel narrows with a lightweight flywheel and the driver must exercise improved clutch pedal finesse but, once mastered, the RX-8 will drive as smooth as it does with an OEM flywheel. I routinely keep the RPMs at/below 1500 when starting from a dead stop and the reduced inertia is offset with driver technique.
You also don't live in a mountainous state full of hills like I do.
Old 03-14-2013 | 01:12 PM
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Originally Posted by Charles R. Hill
AZ has plenty of mountains.
Maybe not as many hills as you have, though, although the freeways here have constant altitude changes that one does not tend to notice unless purposefully doing so.
Dude, my DRIVEWAY is a huge hill. I can always tell the cars that have aluminum flywheels because I have to slip the hell out of the clutch to gain enough momentum to get up it. I like LW steel FW's just fine, but the 8 and 9lb aluminum flywheels are IMO good for nothing except making you look like a dumbass on hills with stops.
Old 03-14-2013 | 01:18 PM
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Originally Posted by Charles R. Hill
Maybe I need to drive to your place and test my mad skillz, yo! LOL
What, you think you're Michael Schumacher on the clutch or something?
Old 03-14-2013 | 01:43 PM
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I've burnt up my clutch a few times starting up a steep grade. I usually wait at the bottom of the hill then work up once the light turns green. But getting jammed up on an incline sucks so much with the LW flywheel.
Old 03-14-2013 | 02:01 PM
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Originally Posted by Charles R. Hill
Maybe I need to drive to your place and test my mad skillz, yo! LOL
I miss driving the hills of AZ. I love all the roads around flagstaff.
Old 03-14-2013 | 03:13 PM
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Originally Posted by Charles R. Hill
I have no idea how Schumacher manipulates/operates his clutches, so I wouldn't know how I compare to him, but I do have a story I would like to share with everyone;

Here in AZ we have a restaurant called "The Hilltop" (maybe Hoss has seen it) that has one of the steepest grades I have ever seen, anywhere. I had a friend/customer for whom I installed a BHR Flywheel and an Exedy clutch. He found it nearly impossible to drive anywhere with the BHR flywheel, expressing the same concerns as you, let alone driving up steep grades. I then jumped in his car, with him in the passenger seat, and demonstrated how one can "retrain" themsleves on clutch and gas pedal finesse starting with allowing the car to idle while gently engaging the clutch, leaving the gas pedal alone and trusting the idle control feature in the PCM. We headed over to The Hilltop and I started from idle at the base of the driveway. I even stopped the car partway up the grade and demonstrated my manner of driving and how I smoothly motivated the car the rest of the way up the hill without excessive slipping of the clutch or excessively high engine RPMs.

Most people who drive with me in my personal RX-8 are usually unaware that not only do I have a BHR Flywheel but I also have a SPEC Lightweight clutch (one of the few which actually works, while the rest I sold failed). Just as with the flywheel, the clutch is 4 lbs. lighter than typical clutches which even furthers my point.

Again, I am not trying to argue with others or demand that everyone agree with me, I am simply sharing my personal experience as it differs from yours.
I'm certain that you can, as could most anyone, if you put your mind to it. Call me lazy, but unless I'm piloting an exotic sportscar (ferrari, lambo, bugatti, etc.) I'm not really looking to "retrain" myself how to drive a clutch, especially when the real world gains are so minimal.
Old 03-14-2013 | 10:39 PM
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Originally Posted by RotaryResurrection
If you go too light you sacrifice driveability on the street. Reducing intertia makes the car more difficult to launch from a stop. "Race" parts will not always make your car faster on the street. Sometimes they can make it slower or worse than it started.
well you do realize that the used Racing Beat aluminum flywheel you are hawking is the lightest OE size clutch type I'm aware of; 8.5 lbs

seems odd that you would be telling people it might be too light ...


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