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BMW 3-Series (E90 E92) Forum > E90 / E92 / E93 3-series Powertrain and Drivetrain Discussions > N54 Turbo Engine / Drivetrain / Exhaust Modifications - 335i > OEM 335IS/F10 550i Clutch



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      04-17-2014, 06:32 AM   #1
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OEM 335IS/F10 550i Clutch

Anyone have any experience with this? Seems promising and a great alternative.

My questions are, would it hold with E85 or Meth and will our OEM flywheel be compatible with this setup?

http://www.ecstuning.com/BMW-E92-335...014/ES1897635/
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      04-17-2014, 10:14 AM   #2
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Originally Posted by Myrder
Did this swap a couple weeks ago. Clutch has 600miles on it and holds the power fine. Though its new so who knows. Overall little stiffer pedal but not much and very OEM feel still. I like it.
Did you use your OEM flywheel?

Also, are you running e85 or meth?


from the other forum.

Yes to E85 and no to meth. Stock flywheel. Do some searching it's a talked about topic. You will see that there are no dynos for verification on a 335i. But if a 550i can make more than 500rwtq and move that heavier car, this clutch should be good for our cars at FBO power levels.
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      04-17-2014, 10:33 AM   #3
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Quote:
Originally Posted by Myrder View Post
Originally Posted by Myrder
Did this swap a couple weeks ago. Clutch has 600miles on it and holds the power fine. Though its new so who knows. Overall little stiffer pedal but not much and very OEM feel still. I like it.
Did you use your OEM flywheel?

Also, are you running e85 or meth?


from the other forum.

Yes to E85 and no to meth. Stock flywheel. Do some searching it's a talked about topic. You will see that there are no dynos for verification on a 335i. But if a 550i can make more than 500rwtq and move that heavier car, this clutch should be good for our cars at FBO power levels.
I searched and surprisingly could not find anything.

I'm also surprised that the 335IS and F10 550i would use the same clutch since there is a significant difference in power between the two.
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      04-17-2014, 10:57 AM   #4
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I wasn't aware that you could adapt the 335IS clutch to the 335i flywheel but according to realoem, both the 335IS and the F10 550i uses the same clutch.

This seems like a very affordable upgrade for anyone under the 550-575tq range.

Last edited by Tiago@VRSF; 04-17-2014 at 04:15 PM.
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      04-17-2014, 11:03 AM   #5
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Quote:
Originally Posted by Tiago@VRSF View Post
I'm not sure if you can adapt the 335IS clutch to the 335i flywheel but according to realoem, both the 335IS and the F10 550i uses the same clutch.
When another member emailed ECS regarding this setup this was the response, "The (335is) clutch in question is used on the F10 550i, tuned these make over 500 lbs ft of torque and the clutch holds it with no problems. BMW does not release exact torque holding values for clutches (and I haven't had this one sent off for testing) but it is believed to hold between 500 and 600 lbs ft of torque."

And from their website:
Note - This clutch is an excellent upgrade for non 335is/550i/650i models. It features a more heavy duty clutch disc and more holding power with stock-like pedal effort.
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      04-17-2014, 11:04 AM   #6
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Quote:
Originally Posted by DurimOne54 View Post
I searched and surprisingly could not find anything.

I'm also surprised that the 335IS and F10 550i would use the same clutch since there is a significant difference in power between the two.
hmm if you go through my post history you will find more of the same. Mainly people type in ECS tuning, maybe ill make a post in the future will all the info i have and swap details. ANYWAY, I was surprised at how small the clutch is overall, these cars have baby clutches. Basically, there is no quantitative data you would want as far as dyno's showing when the clutch fails. All I went off of was searching how many threads have popped up with 550i or 335is clutch slip events related to power. Couldn't find any.
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      04-17-2014, 11:11 AM   #7
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Quote:
Originally Posted by Tiago@VRSF View Post
I wasn't aware that you could adapt the 335IS clutch to the 335i flywheel but according to realoem, both the 335IS and the F10 550i uses the same clutch.

This seems like a very affordable upgrade for anyone under the 500tq range.
No adaptation necessary. Being the 335is uses the same engine and transmission as the normal 335i, it makes sense.

I believe this clutch is good for well into 500tq range. Considering the stock car is 450tq and has an easy 800lbs more than my car.

Stock 550i
Displacement: 268 cu in, 4395 cc
Power: 400 bhp @ 5500 rpm
Torque: 450 lb-ft @ 1750 rpm

TRANSMISSIONS: 8-speed automatic with manumatic shifting, 6-speed manual

DIMENSIONS:
Wheelbase: 116.9 in
Length: 193.1 in
Width: 73.2 in Height: 57.6 in
Curb weight: 4417 lb (auto); 4358 lb (manual)


also note: Dinan doesn't offer a clutch upgrade for their different stages of 550i's so they feel its adequate.
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      04-17-2014, 11:19 AM   #8
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Quote:
Originally Posted by Myrder View Post
No adaptation necessary. Being the 335is uses the same engine and transmission as the normal 335i, it makes sense.

I believe this clutch is good for well into 500tq range. Considering the stock car is 450tq and has an easy 800lbs more than my car.

Stock 550i
Displacement: 268 cu in, 4395 cc
Power: 400 bhp @ 5500 rpm
Torque: 450 lb-ft @ 1750 rpm

TRANSMISSIONS: 8-speed automatic with manumatic shifting, 6-speed manual

DIMENSIONS:
Wheelbase: 116.9 in
Length: 193.1 in
Width: 73.2 in Height: 57.6 in
Curb weight: 4417 lb (auto); 4358 lb (manual)


also note: Dinan doesn't offer a clutch upgrade for their different stages of 550i's so they feel its adequate.
The reason I say that is because through all the years the N54 is offered in the 335, there are about 3 different part numbers for the flywheels used even though it's the same N54 motor.

It seems BMW just alters the flywheel to match the crank and their universal clutch face which is good news for anyone looking for reliable power holding.
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      04-17-2014, 11:28 AM   #9
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Quote:
Originally Posted by Tiago@VRSF View Post
The reason I say that is because through all the years the N54 is offered in the 335, there are about 3 different part numbers for the flywheels used even though it's the same N54 motor.

It seems BMW just alters the flywheel to match the crank and their universal clutch face which is good news for anyone looking for reliable power holding.
100% correct. Clutch part never changes but the flywheel does change number of bolts to the crank.
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      07-20-2014, 05:23 AM   #10
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i was going to install the 550 clutch in my bmwc 135 n55... but i saw i needed to swp the flywheel as well... any ideas what to buy?
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      07-20-2014, 03:01 PM   #11
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I have this clutch installed in my N54 e90.
My clutch was actually good, but flywheel was bad somehow after the car was on the lift. So I installed the 335is clutch and a new OEM flywheel. I am running Cobb stg2 agg, FMIC, DPs.

It feels exactly the same, same weight and pedal feel. I think the pedal is a little harder to push, but that's because both the flywheel and clutch are new.

Overall, I can't tell you I feel any difference (other than of course my clutch does slip anymore).
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      07-20-2014, 03:58 PM   #12
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Quote:
Originally Posted by berne View Post
i was going to install the 550 clutch in my bmwc 135 n55... but i saw i needed to swp the flywheel as well... any ideas what to buy?
Depends on your goals/budgets.

You can stick with the stock flywheel or you can go aftermarket and get a Spec on or something.

You may be able to use the 1M flywheel which is lighter but you would need to do more research on that end.
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      07-21-2014, 01:49 AM   #13
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I installed this clutch back in May and slowly Broke it in. So far it's just nice smooth OEM like engagements and no slipping even now with running E85 and 17.5 psi boost. The previous stock clutch was slipping a lot. This is strong and holds the power. Nice!
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      07-21-2014, 03:43 PM   #14
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Thanks for the update. Mind checking back in a couple months to chime in on how things on progressing?
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      07-21-2014, 04:14 PM   #15
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Quote:
Originally Posted by sutter2k View Post
Thanks for the update. Mind checking back in a couple months to chime in on how things on progressing?
I have close to 5k on my clutch. Works as it should.
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      07-22-2014, 11:06 AM   #16
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I put one in three weeks ago after the ACT clutch was slipping badly at the engagement point with only 20k miles. All you had to do was press the pedal down maybe an inch and it would disengage - telltale that it's worn out. That and the ACT clutch pedal effort was ridiculous!

I have an early 8-bolt flywheel, and the 335is/550i clutch works great! Factory pedal effort, progressive slip-in point, and no shudder unlike the ACT clutch. I haven't beat on it, yet, but it holds my power level with meth.
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      08-05-2014, 04:29 PM   #17
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Was actually looking into this myself. My buddy actually is using this clutch with aftermarket turbos. And he is making ~620wtq and been holding strong for 40,000km now with this clutch. 6th gear pulls with insane power in that car and clutch holds perfectly. I think this clutch is heavily under rated.

Was looking and the S3 Dinan 550i makes 580tq and they don't swap clutches is pretty good.

I'm definitely going to pick up one of these as my stock clutch is slipping like crazy now and engagement is right at the end of the pedal. Is all that's needed to do the swap in that quoted link if I don't need a new flywheel?
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      08-07-2014, 06:44 AM   #18
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There are a few bolts and other bits to replace. The clutch kit comes with 6 pressure plate bolts, clutch disc and pressure plate, a throwout bearing, and release lever arm. Do not separate the bearing from the arm since the it has two different pivot depths, and it comes installed the proper way. Get it wrong, and you'll have to pull the trans again.

Replace the three Guibo bolts and nuts, four aluminum trans bolts - either get a new aluminum bolt kit or buy 4 steel bolts sold individually listed in the parts catalog, and check your shift rod seal. They commonly leak on all BMWs once they get some age. Get some new exhaust gaskets from the downpipes/cats to mid section and 4 new copper nuts. Get a new plastic pivot pin and retainer spring clip. Grease the tip of the pin and clutch slave with a dollop of silicone grease. Do not bother replacing the pilot bearing. It is a major PITA. Clean it out with some brake cleaner and put in some fresh grease, any wheel bearing grease with moly will do.

All of the pressure plate and driveshaft to Guibo bolts are torque-to-yield, so pay attention to the torque specs!
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      08-07-2014, 11:12 AM   #19
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Quote:
Originally Posted by JamesM3M5 View Post
There are a few bolts and other bits to replace. The clutch kit comes with 6 pressure plate bolts, clutch disc and pressure plate, a throwout bearing, and release lever arm. Do not separate the bearing from the arm since the it has two different pivot depths, and it comes installed the proper way. Get it wrong, and you'll have to pull the trans again.

Replace the three Guibo bolts and nuts, four aluminum trans bolts - either get a new aluminum bolt kit or buy 4 steel bolts sold individually listed in the parts catalog, and check your shift rod seal. They commonly leak on all BMWs once they get some age. Get some new exhaust gaskets from the downpipes/cats to mid section and 4 new copper nuts. Get a new plastic pivot pin and retainer spring clip. Grease the tip of the pin and clutch slave with a dollop of silicone grease. Do not bother replacing the pilot bearing. It is a major PITA. Clean it out with some brake cleaner and put in some fresh grease, any wheel bearing grease with moly will do.

All of the pressure plate and driveshaft to Guibo bolts are torque-to-yield, so pay attention to the torque specs!
Thank you very much man! Having my shop do this for me. They say they've done lots of SPEC clutches and stock ones but never did the 335IS clutch swap. They were just curious and have no problems attempting it as they love trying new stuff and getting to know tricks and tips for there other customers too. Shop owner is awesome as he drives a supercharged E60 M5. Gave me a ride in that to work and
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      08-08-2014, 09:26 AM   #20
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Good news is that the 335is clutch is a direct bolt-on, no tricks, changes, or other crap involved. It's a BMW part that fits just like the original clutch. I did mine easily after hours on the lift.
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      08-08-2014, 09:36 AM   #21
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Can you pair the 335is clutch with an Alum. or Steel single mass flywheel?
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      08-08-2014, 09:46 AM   #22
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Quote:
Originally Posted by MAC335i View Post
Can you pair the 335is clutch with an Alum. or Steel single mass flywheel?
Yes, just select the use "OEM Clutch" when you purchase their flywheel.

Might help a bit with rattle but if your going to go single mass you have to expect there to be some noise even with the stock clutch. if you want no noise only way is to retain the dual mass flywheel ( which becomes a problem at over 550whp )
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