M62 Flywheel question

[Hubmw77]

So I just purchased a 6 speed transmission for my m62; however I was wondering if there is a preferable flywheel/clutch combo for the swap. My car is going to be semi track driven and mostly a daily driver. Is there any benifit to use an s62 frywheel considering it's still a duel mass? If anyone could help I would really appreciate it!

[Jean]

Not a good idea to dual dual mass if it will be a track/autocross car, imho.

They fail.

[Rob@UUC]

http://store.uucmotorwerks.com/540i-c571.aspx

[Jean]

Rob, how about a flywheel by itself, price?

I need one for m6x to be used with 5speed tranny.

[Rob@UUC]

Rob, how about a flywheel by itself, price?

I need one for m6x to be used with 5speed tranny.

Which particular flywheel, our oversize 280mm V12 clutch conversion, or our 240mm OE-size version?

If the 280mm V12 conversion, yes, we can sell that to you by itself. You would source E31 850CSi/Ci clutch kit yourself. Flywheel package would include the flywheel, special slave cylinder, crank bolts, and gall plate. Cost would be $1875.

If the 240mm OE-size version, we usually would not sell the flywheel by itself because we recommend using the clutch that we supply. As our flywheel is a 1-piece design, we recommend using a sprung-hub clutch - that's what we supply with the flywheel. You can use the OEM M5/540i clutch, but understand that the OEM unit is a solid hub disk and the pressure plate has the SAC (Self Adjusting Clutch) design which we find undesirable. The UUC clutches for this fitment are sprung-hub and have the better conventional pressure plate. Flywheel by itself including crank bolt hardware and gall plate would be $1150.

[Jean]

Rob , no i am looking for a flywheel with a replacable clutch friction area to be used with 240mm clutch disks.


Did these go up in price or maybe I saw another one before hmmm

[Rob@UUC]

Rob , no i am looking for a flywheel with a replacable clutch friction area to be used with 240mm clutch disks.

Yes, that's the second one above. Friction face on the flywheel is replaceable.

Did these go up in price or maybe I saw another one before hmmm

Nope, no price increases since the product was initially released.

[Jean]

Ouch, well I guess I'll have to go with JB flywheel for under $800. $1150 is too rich for my blood for just a flywheel :(

http://www.turnermotorsport.com/c-28-bmw-jb-racing-lightweight-flywheels.aspx

We had the e30 on the dyno today, with zero clutch/flywheel issues. We made at least a half-dozen full pulls, as well as a bunch of partial pulls to warm-up/shake-down the drivetrain. No drama whatsoever - I wish every shake-down went this way.

Drivetrain configuration:
Engine: E34 M60 (circa 1995), Alusil
Trans: ZF 5-speed transmission (530i)
Flywheel: JB Racing E39 540i flywheel
Clutch: E36 328 Clutchmasters Organic Stage 1 kit
Slave cylinder: 530i

Basically, there are three models of BMW that used this clutch kit - e36 328i (all body styles), E39 528i Sedan, and Z3 2.8 Roadster. The OEM clutch kit is part #21211223602, but again, we used the Clutchmasters upgrade for the application. Given the torque differences between the 2.8L six, and 4.0L V8, I would be very hesitant to use a stock clutch kit. We chose a lightweight flywheel, but it is dimensionally identical to a stock flywheel, so the stocker should work (just don't drop it on your foot).

Well - that was a relatively long R&D path, but it worked out. Now the next masochist that google's this stuff will actually find a detailed answer

-Bruce

[M3 euro ltw]

JB flywheel

Interesting, they have 265 and 240 flywheels that would work on our M60, M62 or S62 engines.

The TO bearing is expensive for the 265 set up though.

It is nice to have choice, the 265 would probably offer better longevity and ruggedness.

[Rob@UUC]

Ouch, well I guess I'll have to go with JB flywheel for under $800. $1150 is too rich for my blood for just a flywheel :(

http://www.turnermotorsport.com/c-28...flywheels.aspx

That's a totally different thing. For the V8 engine and transmission applications, the flywheel and clutch parts are not interchangeable with the M20 parts in that link. Starter gear, flywheel diameter, and all clutch components are different.

The link you posted is for a standard M20 6-cylinder setup, standard gearbox.

For regular E30 applications with the M20 6-cylinder, you'd want to look at UUC's Stage 2/M5 clutch conversion package. This setup is pretty special, our 8.5lb flywheel that adapts your E30 to use the E34 M5 clutch package (and performance aftermarket variants for the E34 M5) using the regular transmission, and no other changes required. Details:

http://store.uucmotorwerks.com/lightweight-flywheel-for--84-91-e30-325i325e325---85lbs---m5-sprung-hub-clutch-conversion-p1327.aspx

[Jean]

Rob,

No I didn't post an M20 only link, if you scroll down you'll see v8 flywheels.

E39 540i 97-03 JB Racing Lightweight Flywheel


View more product information
Aluminum flywheel that is less than half the weight of the stock unit for quicker throttle response and faster acceleration. Compatible with a stock 540i 240mm clutch and includes mounting bolts. Stock dual-mass flywheel = 33lbs / JB Racing flywheel = 13 lbs. As with any single-mass flywheel, more noise and vibration is expected with this part unless a sprung-hub clutch disc is used with it.

Applications:
6/96-2003 E39 540i

Part #: 520-150-240
Price: $798.00 (USD)



There were a couple guys on this forum here who has done testing with regular 240mm clutches w/o any issues. As an example above by BruceBe ....

Thanks!

[JGood]

That's a totally different thing. For the V8 engine and transmission applications, the flywheel and clutch parts are not interchangeable with the M20 parts in that link. Starter gear, flywheel diameter, and all clutch components are different.

The link you posted is for a standard M20 6-cylinder setup, standard gearbox.

For regular E30 applications with the M20 6-cylinder, you'd want to look at UUC's Stage 2/M5 clutch conversion package. This setup is pretty special, our 8.5lb flywheel that adapts your E30 to use the E34 M5 clutch package (and performance aftermarket variants for the E34 M5) using the regular transmission, and no other changes required. Details:

http://store.uucmotorwerks.com/lightweight-flywheel-for--84-91-e30-325i325e325---85lbs---m5-sprung-hub-clutch-conversion-p1327.aspx

Rob,

Thy flywheel Jean needs is the e39 540i/M5 240mm flywheel. It is used with e36 328i clutch kits to adapt the ZF310 transmission from an e34 m60b30 530i to the m60b40/m62b44 engines. A bunch of us are using this setup, it works great.

When I purchased that flywheel from you last year, it was under $800. It was just the flywheel and hardware, no clutch parts.

[Rob@UUC]

Rob,

No I didn't post an M20 only link, if you scroll down you'll see v8 flywheels.

Weird, when I clicked it, all I saw were the M20 units.

I sent you a PM.

As far as the UUC flywheels for the M62 models, I do believe that UUC is the only company manufacturing the starter/ignition timing ring from scratch, brand new components. All others that we have seen are built with used rings cut from old flywheels, and may have intermittent timing issues due to the distortion of the ring.

[Jean]

Here is info from JB Racing regarding above -

All JB Racing flywheels and components are CNC machined in-house from new stock material. This includes the ring-gear/ignition trigger rings employed on our M62/S62 V-8 replacement flywheels. We do not sell nor supply any standard flywheel utilizing ring-gear/ignition trigger-rings that have been removed from used OE flywheels.



Thank you for the opportunity to address this question.

Regards,



Dennis R. King

Sales & Marketing Mgr.

JB Racing, Inc.

PH: 352-343-8900 / Fax: 352-343-8174

JBR Logo www.jbracing.com