M3 Flywheel Confirmation

[Metallated]

So I got this flywheel off ebay and it isn't fitting with my flywheel I believe to be from a 328i, can anyone confirm that this flywheel if for an E36 M3 clutch? Thank you so much.

[ZekeTheSneak]

What isn't fitting? Looks to be a normal single mass flywheel.

[Metallated]

What isn't fitting? Looks to be a normal single mass flywheel.

Thanks for the reply, the pin holes on my pressure plate don't line up and it looks like the contact surface is slightly smaller.

[ZekeTheSneak]

What pressure plate? All the 24vs run the same/interchangable flywheels. Well anything rocking a zf behind it. Any brand names on the flywheel? Weight?

[Metallated]

What pressure plate? All the 24vs run the same/interchangable flywheels. Well anything rocking a zf behind it. Any brand names on the flywheel? Weight?

I was under the same impression and thought I had a stock 328i pressure plate and clutch, both of which came with my zf.. ?

I got the flywheel on ebay, it's 14.5 lbs, claimed it would be conpatible... oh well, now I guess I have an excuse to get a nice stage 2 clutch ;D

[ZekeTheSneak]

Weird. Is the disk too big for the flywheel? If it is then I bet that flywheel is for a getrag.

[Metallated]

Weird. Is the disk too big for the flywheel? If it is then I bet that flywheel is for a getrag.

Nope the disc is too small for it, you might be onto something though, maybe the pp and clutch I have is from a getrag...

Thanks for all your help figuring this out btw :D

[ZekeTheSneak]

Yah getrags have smaller disks and pp. Early e36/e34 had getrags iirc. Yah anytime. This place is fucking dead. Nothing like it used to be.

[Northern]

I've always believed the S50, S52, and non-M flywheels were different, and the part numbers don't cross reference on RealOEM.

The clutch/PP xref between the S50 and S52, but the M52 is a different part for the clutch as well.

[wworm]

328s are the only e36s that share the zf320 trans with m3s

[JimmyP]

When I did the lightweight flywheel in my M44 powered Ti according to my research it looked every E36 based flywheel fits every e36 based engine the only things that change were the clutch sizes.

4 cylinders were 215mm clutches
Non-M 6 cylinders were 228 mm clutch *EDIT except below 323 & 328

EDIT for future reference
1995 - 11/95 E36 323i - 6 cyl.
1994 - 99 E36 328i w/ M50, M52 2.8L - 6 cyl.
S50 - S52 "M" 6 cyl is 240mm

I put an alloy 228mm M5X flywheel and clutch into my Ti with no drama at all.

Are you sure you are not trying to put a 228mm clutch onto a 240mm flywheel?

It seemed like most of the aftermarket Ebay flywheels for any of the E36 6 cyls upgraded to the 240mm S52 clutch.

I had to hunt around for a used 228mm flywheel.\

Measure the OD of the machined friction surface, I would bet its going to be 240mm and you will need a 240mm S5X clutch.

[Metallated]

When I did the lightweight flywheel in my M44 powered Ti according to my research it looked every E36 based flywheel fits every e36 based engine the only things that change were the clutch sizes.

4 cylinders were 215mm clutches
Non-M 6 cylinders were 228 mm clutch
M 6 cyl is 240mm

I put an alloy 228mm M5X flywheel and clutch into my Ti with no drama at all.

Are you sure you are not trying to put a 228mm clutch onto a 240mm flywheel?

It seemed like most of the aftermarket Ebay flywheels for any of the E36 6 cyls upgraded to the 240mm S52 clutch.

I had to hunt around for a used 228mm flywheel.\

Measure the OD of the machined friction surface, I would bet its going to be 240mm and you will need a 240mm S5X clutch.

That may be the issue, I will investigate...

I'll measure the diameter - you're probably right.

Thank you for the exact dimensions, very useful!

[M-technik-3]

What pressure plate? All the 24vs run the same/interchangable flywheels. Well anything rocking a zf behind it. Any brand names on the flywheel? Weight?

Early 24V engines had smaller flywheels aka getrag transmissions in 325i and 325iS they tended to loose 2nd gear.

I am willing to bet this is for an early chassis e36. They all fit the bolt flange as mentioned it's just the friction size

[ForcedFirebird]

Getrag was used more than just early models, they were in the e36 325's and 323's (also z3 and some e46). The 328/m3 got the good stuff....

http://www.realoem.com/bmw/enUS/part...3001434410+%09

I had a manual swapped 328 come in the shop and didn't pay attention to the transmission, just the model. Well, a PO had used the Getrag and smaller clutch. Didn't realize until it was together and the clutch wouldn't release. Took it all back apart twice and it all appeared well. Come to find out the 328 disc in a 325 flywheel was rubbing the outside edge of the disc (since the disc was too large for the recessed friction surface). Had to do the whole job over with a 325 clutch kit.

[Northern]

It's also nearly a safe assumption that that flywheel is S52 fitment, just based on how similar it looks to the gripforce/FX racing/ every ebay seller version

Which also states under "Compatibility":

IMPORTANT NOTE: MUST USE 96-99 BMW M3 CLUTCH KIT

So buy an S52 clutch kit, or run whichever flywheel matches the part number of the pressure plate you currently have.

Yes, the transmission is the same.
Yes, all 328 and M3's had 240mm clutches.
No, the flywheel/clutch is not the same.