Time for a new clutch, looking for a mild option - Page 3 - BMW M5 Forum and M6 Forums
E39 M5 and E52 Z8 Discussion 1998-2003 Advertiser's Forum

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post #21 of 29 Old 15th December 2014, 12:51 AM
gsfent
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Quote:
Originally Posted by mgdmb View Post
Indeed it does, no chatter at all, ever. CNS takes the stock dual mass flywheel and shaves it down to remove the weight, so you're left with all the benefits of a dual mass, but much lighter than stock kit.
I believe Dinan just lightens the flywheel, but CNS has it machined to flatten the surface so it can accept the larger disc. It is almost 1 inch larger in diameter, which is a lot. Not sure it couldn't be done by any good machine shop, but you would at least need the old one in hand to see where the machining took place.

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'01 Black/caramel
Dinan Stage 3 suspension, SS jet coated headers, ESS SC kit w/ 1 range colder NGK's, 92mm pulley, 440 Big Greens, TTFS alpha N tune for meth, RK plenum plates, SBC Endurance Stage 3 Kevlar performance clutch setup, "Jed" lightened DMFW, open brake ducts, TEC cupholder, U.S.(Euro style) tilt/slide armrest, 6k HID fogs, Umnitza bi-xenon flamethrowers w/6k super white low beams, rear fogs, V1/Stealth1, dual head LI, 2.65 diff w/40% lockup/2x dynamic, compact spare, M5 logo trunk carpet, Euro trailer hitch, Mocal oil cooler, ACS type rear spoiler, Rogue custom SSK and tranny mounts, ST 355 BBK (fronts), BP sway bar brackets, Bluetooth retrofit, Speedhut boost gauge (20 psi), Dinan TB's and VS, KB BAP, Howerton/HFS-3 Aquamist WI trunk setup (50/50), with 2nd gauge in rear view mirror, aftermarket trunk mounted sound system integrated into stock unit (amps, crossovers, sub and speakers).......
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post #22 of 29 Old 15th December 2014, 01:09 AM
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Good point, I hadn't considered that... I know there's a picture on here that compares the Dinan and CNS flywheels. iirc, CNS removes the dowels and drills new holes, too.
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post #23 of 29 Old 15th December 2014, 01:12 AM Thread Starter
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Interesting. I know everything Dinan comes with a huge, huge markup. I wonder how much you'd be into this if you started with a $400 brand new LUK DMF and then had a reputable machine shop do the work. That would be interesting to see how much money could be saved.
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post #24 of 29 Old 15th December 2014, 07:15 PM
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Originally Posted by PumpinIron View Post
Interesting. I know everything Dinan comes with a huge, huge markup. I wonder how much you'd be into this if you started with a $400 brand new LUK DMF and then had a reputable machine shop do the work. That would be interesting to see how much money could be saved.
A good part of the charge is R&D (or as we call it, trial and error! LOL). Just taking weight off is not hard, but doing it in a way to optimize performance is what you are after.

Now, if someone has a worn Dinan DMF to look at and we can compare to a stock DMF, then I think you can easily replicate for under $100 of machine shop time. I would probably select a shop that does a lot of race car work too, they would tend to be more familiar with the process IMHO.

Regards,
Jerry

'01 Black/caramel
Dinan Stage 3 suspension, SS jet coated headers, ESS SC kit w/ 1 range colder NGK's, 92mm pulley, 440 Big Greens, TTFS alpha N tune for meth, RK plenum plates, SBC Endurance Stage 3 Kevlar performance clutch setup, "Jed" lightened DMFW, open brake ducts, TEC cupholder, U.S.(Euro style) tilt/slide armrest, 6k HID fogs, Umnitza bi-xenon flamethrowers w/6k super white low beams, rear fogs, V1/Stealth1, dual head LI, 2.65 diff w/40% lockup/2x dynamic, compact spare, M5 logo trunk carpet, Euro trailer hitch, Mocal oil cooler, ACS type rear spoiler, Rogue custom SSK and tranny mounts, ST 355 BBK (fronts), BP sway bar brackets, Bluetooth retrofit, Speedhut boost gauge (20 psi), Dinan TB's and VS, KB BAP, Howerton/HFS-3 Aquamist WI trunk setup (50/50), with 2nd gauge in rear view mirror, aftermarket trunk mounted sound system integrated into stock unit (amps, crossovers, sub and speakers).......
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post #25 of 29 Old 15th December 2014, 07:54 PM Thread Starter
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Quote:
Originally Posted by gsfent View Post
Now, if someone has a worn Dinan DMF to look at and we can compare to a stock DMF, then I think you can easily replicate for under $100 of machine shop time. I would probably select a shop that does a lot of race car work too, they would tend to be more familiar with the process IMHO.

Regards,
Jerry
Yeah, that would be nice to have a worn Dinan DMF to compare to the stock one so it could be machined to spec!
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post #26 of 29 Old 16th December 2014, 04:19 AM
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https://www.m5board.com/vbulletin/e39...arts-list.html

Stock car. Stock DMF flywheel + South Bend Stage 3 Endurance. Clutch felt really heavy at first, but within two days your foot gets used to it and it feels like stock. Other than that, I'm very happy with this setup. Nice streetable clutch, no on/off feel at all. I actually expected the clutch to be grippier, but I guess kevlar (Endurance) has a lower friction coefficient than organic (Daily).

Last edited by m5power1; 16th December 2014 at 04:21 AM.
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post #27 of 29 Old 16th December 2014, 04:28 AM Thread Starter
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Nice! I'm putting together a list of parts of things I want to replace while I'm in there.

So far I've got the clutch, flywheel, rear main seal, transmission mounts, transmission input and output shaft seal, guibo, and several other parts as well.
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post #28 of 29 Old 13th January 2015, 06:56 PM
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I ordered the South Bend stage 2 daily clutch yesterday. Going to pair it up with my UUC ltw flywheel.
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post #29 of 29 Old 4th July 2019, 01:09 PM
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Originally Posted by Viper3812 View Post
I ordered the South Bend stage 2 daily clutch yesterday. Going to pair it up with my UUC ltw flywheel.
Hate to bring back a 4 yr old thread but I'm curious what you opinion is on this clutch at this point? I need to replace my dinan which has lasted 70k miles but don't want to spend that much right now so I'm considering the southbend endurance

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2003 LeMans Blue Bmw M5-Stoptech 4 wheel brakes, Eibach sway bars, Bilstein PSS9 coilovers, Dinan Brake ducts, UUC short shifter, UUC trans mounts, Dinan Clutch and flywheel.Sirus Radio, Dinan strut brace
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