Motiv Twin Plate Clutch Review

[martymil]

So I'm upgrading my low km (12k) clutch this week as the stock can't handle the
power at all, it slips on boost as the car is developing over 9000N of torque
at the wheels. It doesn't slip as long as I'm under 17psi.

Its not an everyday car, so I went with this clutch

https://www.motivmotorsport.com/prod...sc-clutch-sst/

The reason is that the stock dual mass flywheel gives false knocks at high
power levels and the dme pulls timing when it detects knock.

There is other clutches that can hold the power but what is planned for the car
and the power its going to develop eventually it will be a waste of time.

The clutch looks amazing and very solidly built.

Its a bit of a handful to drive as I have driven one before but nothing I can't get use to.

I'm getting the clutch & flywheel dynamically balanced to help with chatter
and keep the noise down to a minimum.

I have to thank JD75 for organizing the clutch for me and supplying it at a very good price.

He is also the Motiv authorised dealer.

If anyone needs parts this guy is great to deal with.

Little update.

The clutch is working flawlessly, it does get a little grumpy sometimes and doesn't want to play nicely on take off like 1 out of 50 times.

When the aircon is on it tends to rattle a little bit on idle only but turn it off and its almost silent.

From low revs to high revs its ultra smooth, especially at low revs where the dual mass would be rattly the motiv is silky smooth but load it
up at low revs and the cabin will resonate a fair bit.

Going to try and get a TW_Damper and see if that will help with the rattle

http://www.tuningwerk.de/tuningwerk/...sFZ3QMNgk4rnUw

[DR-JEKL]

Hmm very nice!!

Who are you using to get the stuff balanced? whats the method of correction?

Did you get the full face clutch?

[martymil]

Got the full face clutch

I have a shop in mind but they have to see the clutch and flywheel first

[DR-JEKL]

Originally Posted by martymil

Got the full face clutch

I have a shop in mind but they have to see the clutch and flywheel first

Talk to Pete, I had my 335i-M3 driveshaft sent to Glenn Walker at KC & DR driveline at Arndell park. (02) 9679 7747.

Hopefully they can sort out the vibration issue I've had with the M3 driveline install

[martymil]

Who ever can get it done the fastest

[martymil]

Here are some pics with new pressure plate bolts and bell housing bolts.

New OEM fork, bearing and pivot pin should be here Tuesday morning.

[froop]

Good idea going with the full face. When I ordered mine I didn't really have an option so I'm quite sure I got twin pucks which is a bitch with chatter. They do hold more power but to be honest, the extra probably isn't worth the loss in driveability.

[martymil]

I'm only aiming at 450 rwk so full face shouldn't be a problem lol

[martymil]

Thanks JD75 for organizing the clutch for me, added you to the first post.

[JD75]

Originally Posted by martymil

Thanks JD75 for organizing the clutch for me, added you to the first post.

Thanks bud.

Just one correction with regards your first post though, the OEM dual mass flywheel at high horsepower levels is prone to torsion that the DME incorrectly interprets as a misfire event and subsequently shuts the cylinder down in a rather nasty and abrupt way. This is most common on manual transmission vehicles making 350rwkW+ and usually occurs on cylinder 6 which just happens to be the cylinder closest to the flywheel, though I have seen a misfire event occur on cylinders 5 and even 4 too, but cylinder 6 is always the first one to exhibit the problem.

The single mass flywheel that is supplied with the MOTIV twin-plate basket is as solid as rock, no chance of torsion, no false misfire, no problem. :-)

[DR-JEKL]

Originally Posted by JD75

Thanks bud.

Just one correction with regards your first post though, the OEM dual mass flywheel at high horsepower levels is prone to torsion that the DME incorrectly interprets as a misfire event and subsequently shuts the cylinder down in a rather nasty and abrupt way. This is most common on manual transmission vehicles making 350rwkW+ and usually occurs on cylinder 6 which just happens to be the cylinder closest to the flywheel, though I have seen a misfire event occur on cylinders 5 and even 4 too, but cylinder 6 is always the first one to exhibit the problem.

The single mass flywheel that is supplied with the MOTIV twin-plate basket is as solid as rock, no chance of torsion, no false misfire, no problem. :-)

Just out of curiosity JD, but the 'torsion' you speak of, is this the nature of the DMF i.e the springs preloading/dampening effect which translates to a misfire whereas a SMF is a solid single piece flywheel thats rigid hence no torsion effect - misfires? (wondering if its possible to upgrade the springs in the DMF to retain some oem like driveability with an upgraded DMF? I'm guessing not as someone would have come up with a solution such as this...)

[martymil]

There is no way of upgrading the flywheel springs, the only upgrade is a single mass flywheel when your chasing big power.
New clutch fork arrived today, didn't take a pic but exactly same as this one

[Forced_downunder]

I will chime in here and say I m very happy with my MOTIV clutch that JD75 kindly supplied. Since the install it hasn't missed a beat and it solved the common misfire we were seeing above 350rwkW.

Not too noisy, though when hot after repeated harsh acceleration it does get a bit grabby, though it's a small price to pay for the superior clamping abilities.

JD75 and Advan partnering up again for a great result.

[martymil]

Well I picked up my car today and wow, almost like stock take off.

Little noisy when cold but after a 10min drive it sounds very quiet.

Thanks to Billy for all his hard work and Cameron for helping to get the car finished.

All I'm going to say is wow, i'm over the moon.

[martymil]

Some pics to drool over.

[DR-JEKL]

Did you end up getting it all balanced?

Hmm I'm surprised it feels like a OEM clutch though!

[martymil]

No they couldn't balance a twin plate.

It almost feels like OEM but the take up is firm not soft

You can feel the take up unlike stock, but it's not grabby like an on/off switch if that makes sense.

[martymil]

Thanks JD75 for the clutch and thanks to Billy from Advan for the professional install.

[martymil]

They car drives really nice but you really have to keep the revs over 1800 rpm as the clutch gets a little noisy only when loaded up.

On idle it's actually pretty quiet, you can hear some
gearbox rattle because of the clutch but you really have to listen

I took a video but you can't hear it

Reversing is a little tricky when going up a hill, it gets
a little jumpy but that's a trade off I can live with

Overall over the moon with this clutch, by far the best
investment I made for the 1M yet

[c0ris07]

Just turn the idle up a bit in MHD and it will get rid of the chatter

[martymil]

You would have to sit it on 1000 rpm to get rid of it

Once the gearbox oil gets hot it's practically silent most of the time

Ok so I done the break in period already, the clutch gets tempramental sometimes and gets
grabby, it's mostly when it's coming of a long drive like a hwy.

In traffic it's not bad but you have to be patient and hold the friction point and she will take
off by herself, if you try and give it gas it will launch like a bat out of hell.

It's definetly nothing like oem after the break in period, but still very smooth.

Take off can get tricky now and then and reversing is a bit of a biatch but overall it was the
right choice and I would not get anything else.

I've driven a lot of performance clutches over the years but this is the best thus far for
street/track.

Still haven't gone full throttle, I'll just have to wait till Wednesday at wsid

[DR-JEKL]

Originally Posted by martymil

You would have to sit it on 1000 rpm to get rid of it

Once the gearbox oil gets hot it's practically silent most of the time

Ok so I done the break in period already, the clutch gets tempramental sometimes and gets
grabby, it's mostly when it's coming of a long drive like a hwy.

In traffic it's not bad but you have to be patient and hold the friction point and she will take
off by herself, if you try and give it gas it will launch like a bat out of hell.

It's definetly nothing like oem after the break in period, but still very smooth.

Take off can get tricky now and then and reversing is a bit of a biatch but overall it was the
right choice and I would not get anything else.

I've driven a lot of performance clutches over the years but this is the best thus far for
street/track.

Still haven't gone full throttle, I'll just have to wait till Wednesday at wsid

What gearbox oil did you go with?

Hmm sounds like a compromise in terms of driveability but hopefully will handle the torque for the N54 and those hard launches at WSID!!