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      02-03-2017, 08:24 AM   #1
MFactory
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Exclamation MFactory Single Mass Flywheels

Hey Guys,

just putting up this thread to see if there would be anyone interested in us offering our SMFW's for the E9X M3? Our flywheel is currently the best selling SMFW for the 135i/335i platform, and are thinking of making one for the M3 also.

1pc Chromoly Racing Flywheels (this image is for the 335i)


Made from imported Japanese SAE 4140 Steel. These are Forged, Double Tempered and Super Sub-Zero treated for unsurpassed toughness, with a proprietary surface treatment for increased surface hardness.

Weight - TBD (our 335i SMFW is 21lbs. I'm guessing the M3 will be similar, if not lighter)
Fitment - 06-08 8 Bolt & 09+ 6 Bolt. Both MT and DCT
MSRP - $499.95
Pre-Order Price - TBD (will depend on interest)

Any questions, please don't hesitate to ask
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      02-03-2017, 09:22 AM   #2
Leglessracing
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If you do one for the DCT I'll be up for one. Currently have a wanted ad up to get one!
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      02-03-2017, 09:26 AM   #3
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Quote:
Originally Posted by MFactory View Post
Made from imported Japanese SAE 4140 Steel. These are Forged, Double Tempered and Super Sub-Zero treated for unsurpassed toughness, with a proprietary surface treatment for increased surface hardness.

Weight - TBD (our 335i SMFW is 21lbs. I'm guessing the M3 will be similar, if not lighter)
Fitment - 06-08 8 Bolt & 09+ 6 Bolt. Both MT and DCT
MSRP - $499.95
Pre-Order Price - TBD (will depend on interest)

Any questions, please don't hesitate to ask

FYI, all M3 flywheels are 9 bolt from 2007-2013.
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      02-03-2017, 09:52 AM   #4
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Yeah, I wasn't quite sure on the bolt spec on the M3, so just copied and pasted over from our 335i specs
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      02-03-2017, 01:28 PM   #5
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Do you do clutches as well? Assuming this will be designed to work with the 09+ clutch design. It's a good option for guys with 08 cars. The OEM 09+ flywheel is over $1k new.
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      02-03-2017, 01:33 PM   #6
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We've still to look into the clutch side of it.

Our flywheels will be direct oem replacements, so will work with the oem clutches.
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      02-03-2017, 01:35 PM   #7
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I'm in for this depending on group buy discount %, as long as it's made available with a quality clutch.

What does it take to get an 08 M3 to work with 09+ clutch/transmission stuff? Forgive me if this is worded wrong; im not too familiar with what exactly is different, I just know that something is different.
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      02-03-2017, 01:42 PM   #8
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Once we get the oem flywheel samples in our hands, we can compare the differences
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      02-03-2017, 04:33 PM   #9
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Awesome. And for us filthy-casuals/noobs, can you sum up the differences and advantages/disadvantages of a DMFW vs. a SMFW? Both from a performance standpoint, and things such as NVH, etc.

Thanks much!
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      02-04-2017, 03:06 AM   #10
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Advantages:
- Lighter weight
- Increased throttle response
- Can be resurfaced (which technically must be done everytime you change your clutch)
- Much cheaper than the oem flywheel (see above about resurfacing. You can't resurface the oem DMFW)

Disadvantages:
- Increased noise (most call it "chatter", but it's more a "rattle") due to removal of the oem noise dampener (i.e DMFW). This noise is already present and is not because of installation of the SMFW; it is simply the noise coming from your transmission which you can now hear. You can only hear it at idle, but most people raise their rev limit slightly to around 950rpm which reduces the noise significantly
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      02-04-2017, 03:26 AM   #11
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Cool, thanks for the info! I'm definitely still on board; looking forward to hearing more about available clutch pair-up deals as well!
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      02-04-2017, 04:34 AM   #12
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Isn't the Spec also single mass? Is this gonna be lighter or heavier than Spec? How bad will the 'rattle' be?
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      02-04-2017, 04:52 AM   #13
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Does SPEC have one for the M3? Looking at my application list (granted, it is 2 years old), they only list a Twin-Disc and nothing else.

Normally, SPEC offer two options: Steel and Aluminium. The lighter the flywheel is, the more "rattle" you are going to have as it doesn't have as much mass to absorb the noise.
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      02-04-2017, 07:37 AM   #14
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I'm pretty sure you'll design based off the 09+ design. I don't believe anyone makes clutches for the 08 design.
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      02-06-2017, 02:46 AM   #15
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Interested! How soon will these be ready? M/t M3.
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      02-06-2017, 04:17 AM   #16
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Interested in DCT. Is there a company that already has one out for the DCT...would like to hear some feedback on how the performance feels. I would definitely purchase MFactory.
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      02-06-2017, 04:31 AM   #17
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Dependent on the interest (we would need at least 5 of each fitment to proceed), and how soon we can get our hands on the oem samples, development time is around 2-3 months
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      02-06-2017, 08:45 AM   #18
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i thinks ssp performance makes a set of clutch baskets for the dct. they are a little lighter, but i forget how much. i'm not sure if this is a comparable part to what is being talked about. i have never heard of anyone using a ssp unit, because they are very expensive.
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      02-13-2017, 07:23 AM   #19
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      02-13-2017, 08:07 AM   #20
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      02-13-2017, 02:52 PM   #21
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MT interested but really need to know how bad a rattling sound this is gonna make. I found some sound clips on youtube that are just unbearable and some that are 'okay'.
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      02-16-2017, 01:46 PM   #22
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Quote:
Originally Posted by e92zero View Post
MT interested but really need to know how bad a rattling sound this is gonna make. I found some sound clips on youtube that are just unbearable and some that are 'okay'.
They're not going to be able to ascertain that until one goes on a car.....no two ways about it. There are too many variables that go into this to be able to give you a concrete answer.


Quote:
Originally Posted by MFactory View Post
These are Forged, Double Tempered and Super Sub-Zero treated for unsurpassed toughness, with a proprietary surface treatment for increased surface hardness.

Weight - TBD (our 335i SMFW is 21lbs. I'm guessing the M3 will be similar, if not lighter)
Fitment - 06-08 8 Bolt & 09+ 6 Bolt. Both MT and DCT
MSRP - $499.95
Pre-Order Price - TBD (will depend on interest)

Any questions, please don't hesitate to ask
I'm assuming sub-zero treated = cryotreated? If so:
1) Nitrogen or Helium?
2) "Double tempered" Is one of those cycles a heat-tempered cycle after the cryo treatment or no?
3) Is the surface treatment pre- or post cryo treatment?

Interested in a 6MT SMFW. Thanks!

Last edited by whats77inaname; 02-16-2017 at 01:54 PM.
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