[trixdout]

So I am in need of replacing my 335i clutch because it started slipping about a month ago. I ordered the 335is clutch, after reading many posts about how well it can handle the 550i power, especially at its heavy weight compared to our 335i's.

Now my issue is that I'm confused if there are any single mass flywheels that will work with the self adjusting pressure plate and stock style clutch. All the aftermarket smfw work with aftermarket clutches, but clearly have written on their description that they do not work with stock clutches.

My question to you who have experienced this or know the answer, are there any single mass flywheels that work with a 335is clutch or 335i clutch without modification? Or must I ditch the oem clutch and go aftermarket?

[trixdout]

Anyone?

[Welcome to NBA Jam]

I've never seen a single-mass conversion offered with a self-adjusting pressure plate.

[trixdout]

Originally Posted by Welcome to NBA Jam

I've never seen a single-mass conversion offered with a self-adjusting pressure plate.

So could I essentially use the stock clutch but aftermarket pressure plate with a single mass flywheel?

[Welcome to NBA Jam]

Originally Posted by trixdout

So could I essentially use the stock clutch but aftermarket pressure plate with a single mass flywheel?

I don't know. I mean, I don't see any specific reason why it wouldn't work. I don't think the flywheel itself has any sort of relation to whether the clutch is self-adjusting or not.

[Jeff@TopGearSolutions]

Spec has a flywheel (aluminum or steel) that is a DMFW replacement. The DMFW replacement is a single mass flywheel, Per SPEC "the flywheels can be used with a stock or any stock designed aftermarket self-ratcheting pressure plate."

[Schmidty335i]

Originally Posted by trixdout

So I am in need of replacing my 335i clutch because it started slipping about a month ago. I ordered the 335is clutch, after reading many posts about how well it can handle the 550i power, especially at its heavy weight compared to our 335i's.

Now my issue is that I'm confused if there are any single mass flywheels that will work with the self adjusting pressure plate and stock style clutch. All the aftermarket smfw work with aftermarket clutches, but clearly have written on their description that they do not work with stock clutches.

My question to you who have experienced this or know the answer, are there any single mass flywheels that work with a 335is clutch or 335i clutch without modification? Or must I ditch the oem clutch and go aftermarket?

just outta curiousity from a fellow mt guy. how many miles were you able to put on your clutch before it started slipping? i dont have any issues yet but then again i only have 17k miles.

[Jeff@TopGearSolutions]

Originally Posted by Schmidty335i

just outta curiousity from a fellow mt guy. how many miles were you able to put on your clutch before it started slipping? i dont have any issues yet but then again i only have 17k miles.

Mine started slipping by 24K Miles but I was an N54 and I had about 480WHTQ down in the low range. I ended up pulling some boost out of the low-mid range. The clutch material itself was good but the pressure plate just didn't have the clamping force. It really depends on driving habits and torque. One of my other cars has 135K miles on a stock clutch but the vehicle isn't modified and makes about 140 FT Lbs of torque

[trixdout]

Originally Posted by Schmidty335i

just outta curiousity from a fellow mt guy. how many miles were you able to put on your clutch before it started slipping? i dont have any issues yet but then again i only have 17k miles.

I got about 44k miles 10k-12k of which were stage 2 jb4'ed on 93 octane. I also picked up the car off a lease the guy couldn't finish it. So im assuming he didn't drive it well at first. So =/

Originally Posted by Jeff@TopGearSolutions

Spec has a flywheel (aluminum or steel) that is a DMFW replacement. The DMFW replacement is a single mass flywheel, Per SPEC "the flywheels can be used with a stock or any stock designed aftermarket self-ratcheting pressure plate."

Thank you very much sir. So I will contact them for the single mass fw. Definitely want single mass. Appreciate the info!

Just to clarify, is this the flywheel I should be getting?

[Welcome to NBA Jam]

Originally Posted by Schmidty335i

just outta curiousity from a fellow mt guy. how many miles were you able to put on your clutch before it started slipping? i dont have any issues yet but then again i only have 17k miles.

Oh man, I was a 120k miles on my original clutch in my last BMW. If you drive it right, that sucker can last ages.

[Schmidty335i]

Thanks for the replies guys, it does seem like it depends a lot on how you drive it. iam guessing i am not gonna be putting much miles on mine since i track it about once a month and am FBO/meth/pure stage 1 turbo. lol guess i better start putting aside clutch money

[Subaru335i]

Are you sure you want single mass? Expect lots of transmission chatter. I hear its quite annoying.
If you are not going for a big turbo upgrade just stick with dual mass imo.

[Jeff@TopGearSolutions]

Originally Posted by trixdout

I got about 44k miles 10k-12k of which were stage 2 jb4'ed on 93 octane. I also picked up the car off a lease the guy couldn't finish it. So im assuming he didn't drive it well at first. So =/



Thank you very much sir. So I will contact them for the single mass fw. Definitely want single mass. Appreciate the info!

Just to clarify, is this the flywheel I should be getting?

No, it's not. I can't post links her as it's not a classified section. You want the one listed currently as : SPEC REPLACEMENT FLYWHEEL (STEEL).

We are having trouble naming these flywheels appropriately as there are flywheels for non sac and ones for sac but both are single mass flywheels and one replaces the DMFW and the other is designed for non sac kits.

It gets really confusing because most people don't know what they need and we are unsure how to list them.

[Jeff@TopGearSolutions]

Originally Posted by Subaru335i

Are you sure you want single mass? Expect lots of transmission chatter. I hear its quite annoying.
If you are not going for a big turbo upgrade just stick with dual mass imo.

That's correct. Any single mass will chatter. Aluminum will chatter more then steel.

Single mass is only necessary for 500WHP+

[trixdout]

Originally Posted by Subaru335i

Are you sure you want single mass? Expect lots of transmission chatter. I hear its quite annoying.
If you are not going for a big turbo upgrade just stick with dual mass imo.

I am well aware of the chatter, hence I want to stick to steel. I don't like the fact that you shouldn't turn a dmfw because the springs wear over time and it can cause catastrophic failure. I rather spend little in the long run then spend lots. If I ever do go big turbo (got my own project car that needs work), I'll go with the ptf dmfw upgrade. But again that wont be necessary until i do go bigger turbo.

[trixdout]

Originally Posted by Schmidty335i

Thanks for the replies guys, it does seem like it depends a lot on how you drive it. iam guessing i am not gonna be putting much miles on mine since i track it about once a month and am FBO/meth/pure stage 1 turbo. lol guess i better start putting aside clutch money

lol yea you probably should, but if you are shifting like you should, even at the track, i doubt you have to worry about your clutch anytime soon.

Originally Posted by Jeff@TopGearSolutions

No, it's not. I can't post links her as it's not a classified section. You want the one listed currently as : SPEC REPLACEMENT FLYWHEEL (STEEL).

We are having trouble naming these flywheels appropriately as there are flywheels for non sac and ones for sac but both are single mass flywheels and one replaces the DMFW and the other is designed for non sac kits.

It gets really confusing because most people don't know what they need and we are unsure how to list them.

I believe I found it. SB53S-4 part number. Thank you very much Jeff!!!. You should be expecting a purchase from me by christmas!!!!

[Schmidty335i]

Originally Posted by trixdout

lol yea you probably should, but if you are shifting like you should, even at the track, i doubt you have to worry about your clutch anytime soon.



I believe I found it. SB53S-4 part number. Thank you very much Jeff!!!. You should be expecting a purchase from me by christmas!!!!

yeah i actually kinda baby it at the track not launching it as hard as i should to be getting those pesky 60' times down lol not once have i ever burnt the clutch and had it make that horrible smell so hopefully it lives a long happy life to at least 50k or so haha good luck with yours.

[Grand_hustle17]

Reviving an old thread *using search* what would happen if you mated a Non SAC clutch to a Mfactory Flywheel that apparently requires a SAC type clutch?