 » Site Navigation | | | | » Recent Threads | | | |  |  |  |  10-12-2008, 05:01 PM | #1 | | Senior Member Join Date: Mar 2006 Location: Golden, CO Posts: 283 |  m50 clutch/flywheel
I am in the process of a m50 swap and am looking to upgrade my clutch and flywheel but don't know what to get. I am on a budget and looking to spend less then 500 bucks, and recommendations would be greatly appreciated.
-thanks __________________
e46 325 brake upgrade, Dinan engine chip, UUC SS brake lines, UCC rotors, m68 17in wheels, Conti extreme contacts, Billstein sport shocks, H&R springs, M3 shock mounts, B&B triflow exhaust, K&N cone filter, Magnecor 8.5 wires, Meyle control arms with caster , Hawk ceramic pads, Understeer M3 SSK, UUC SS clutch line, 320 trans mounts. |  |  | | 10-12-2008, 05:31 PM | #2 | | Senior Member Join Date: Nov 2006 Location: Land of the Vikings Posts: 2,700 |
you could get a lightened standard flywheel,
and a sachs sport clutch if you think you need it. __________________ 
Vin Number decode and Retrofit Pdfs Available Free ! Just PM  | | | | | 10-12-2008, 05:51 PM | #3 | | Senior Member Join Date: Aug 2006 Location: maritimes Posts: 1,433 |
ill be making a FS post of all my crap in a day or 2... i have an m52 flywheel laying around, so if your interested, keep an eye out. __________________ 11/97 Base  328Ti
| | | | | 10-12-2008, 06:15 PM | #4 | | Senior Member Join Date: Mar 2006 Location: Golden, CO Posts: 283 |
i was thinking about a lightened OEM flywheel but i don't know where to get one. __________________
e46 325 brake upgrade, Dinan engine chip, UUC SS brake lines, UCC rotors, m68 17in wheels, Conti extreme contacts, Billstein sport shocks, H&R springs, M3 shock mounts, B&B triflow exhaust, K&N cone filter, Magnecor 8.5 wires, Meyle control arms with caster , Hawk ceramic pads, Understeer M3 SSK, UUC SS clutch line, 320 trans mounts. | | | | | 10-12-2008, 06:25 PM | #5 | | Senior Member Join Date: Nov 2006 Location: Land of the Vikings Posts: 2,700 |
get a machine shop to "trim" it out for you.
they do this normally if the flywheel is warped because of abuse, but in principle you could have it taken in a lot more on the back to remove unneeded weight.
You will loose low end torque though, and it wont feel as "smooth" as it did before, but engine response will be improved slightly __________________
Vin Number decode and Retrofit Pdfs Available Free ! Just PM | | | | | 10-12-2008, 06:25 PM | #6 | | Senior Member Join Date: Aug 2006 Location: maritimes Posts: 1,433 |
for starters, you won't find a LTW flywheel and clutch for under $500 dude, especially if you have to pay someone to put it in.
and you probably won't find a 318 one anyways, you'll probably have to upgrade into 6cyl/m3 territory to get a quality LTW flywheel... __________________ 11/97 Base 328Ti
| | | | | 10-12-2008, 06:30 PM | #7 | | Senior Member Join Date: Mar 2006 Location: Golden, CO Posts: 283 |
I'm not looking for a 9lb LTW flywheel. just something lighter then stock. plus I dont need a heavy duty clutch, and i'm going to put it in myself. __________________
e46 325 brake upgrade, Dinan engine chip, UUC SS brake lines, UCC rotors, m68 17in wheels, Conti extreme contacts, Billstein sport shocks, H&R springs, M3 shock mounts, B&B triflow exhaust, K&N cone filter, Magnecor 8.5 wires, Meyle control arms with caster , Hawk ceramic pads, Understeer M3 SSK, UUC SS clutch line, 320 trans mounts. | | | | | 10-12-2008, 06:35 PM | #8 | | Senior Member Join Date: Aug 2006 Location: maritimes Posts: 1,433 |
I didn't imply you were looking for any certain weight, you just said you wanted a LTW flywheel and didn't know where to look, and I told you the chances of finding a 4cyl specific ltw flywheel are slim. Especially if your only budgeting $500 for a flywheel and clutch kit.
Just wanted to point out, to get a good kit, you'll probably have to venture into 6cyl terrority, it'll cost roughly the same as a 4cyl setup, and you'll have better clamping power... I guess thats a bad thing.
And if all your looking for is a few pounds lighter, why bother? The difference will be negliable at best. __________________ 11/97 Base 328Ti
| | | | | 10-12-2008, 07:53 PM | #9 | | Senior Member Join Date: Nov 2006 Location: Land of the Vikings Posts: 2,700 |
if its a m50 swap then itll be a good idea to use the flywheel from that engine no?
then just get that machined __________________
Vin Number decode and Retrofit Pdfs Available Free ! Just PM | | | | | 10-12-2008, 09:17 PM | #10 | | Senior Member Join Date: Mar 2006 Location: Golden, CO Posts: 283 |
the engine i bought didn't come with one... so tracking down one that's in decent shape is hard. __________________
e46 325 brake upgrade, Dinan engine chip, UUC SS brake lines, UCC rotors, m68 17in wheels, Conti extreme contacts, Billstein sport shocks, H&R springs, M3 shock mounts, B&B triflow exhaust, K&N cone filter, Magnecor 8.5 wires, Meyle control arms with caster , Hawk ceramic pads, Understeer M3 SSK, UUC SS clutch line, 320 trans mounts. | | | | | 10-12-2008, 10:16 PM | #11 | | Senior Member Join Date: Nov 2006 Location: Land of the Vikings Posts: 2,700 |
get a used one from here  __________________
Vin Number decode and Retrofit Pdfs Available Free ! Just PM | | | | | 10-13-2008, 10:27 PM | #12 | | Senior Member Join Date: Mar 2006 Location: Golden, CO Posts: 283 |
I decided im going to hold off on a LTW flywheel for a while... but am going to get a sachs M3 clutch which i should be able to use the m42 flywheel since im keeping the stock trans right? __________________
e46 325 brake upgrade, Dinan engine chip, UUC SS brake lines, UCC rotors, m68 17in wheels, Conti extreme contacts, Billstein sport shocks, H&R springs, M3 shock mounts, B&B triflow exhaust, K&N cone filter, Magnecor 8.5 wires, Meyle control arms with caster , Hawk ceramic pads, Understeer M3 SSK, UUC SS clutch line, 320 trans mounts. | | | | | 10-14-2008, 05:41 PM | #13 | | Senior Member Join Date: Jan 2006 Location: Cincinnati Posts: 890 |
Quote: Originally Posted by Watchmyradical  I decided im going to hold off on a LTW flywheel for a while... but am going to get a sachs M3 clutch which i should be able to use the m42 flywheel since im keeping the stock trans right? | ^ Negative. The //M3 clutch is much larger than the stocker. The overall diameter of the flywheel is the same so it fits inside the stock 5-speed. If your not introducing new horsepower, there is really no need to upgrade unless you're reducing the weight. LEFT = //M RIGHT = stock  __________________
SOLD!!! 1999 332ti //M Sport Titanium Silver
M3 S52 3.2 I-6 Engine, M3 Clutch w/ ti Getrag Trans, Z3 3.15 LSD medium case diff and half shafts, OEM Hatch Spoiler, Eurosport HP Underdrive Pulleys, FDM, 17" DS1 rims, M3 Front Struts & Springs, M3 Instrument Cluster, 3-spoke //M steering wheel with tri-color stitching, SSK, CCFL Angels in Depo projectors with 5k HIDs | | | | | 10-14-2008, 06:22 PM | #14 | | Senior Member Join Date: May 2006 Location: 43609 Posts: 3,425 |
+1 you can not mix and match clutches and flywheels. If you want a m50 flywheel you need an m50 clutch, if you want a m3 clutch you need an m3 flywheel. __________________ 1995 Hellrot Clubsport 318ti -Gone 1996 Schwartz II Sport 357ti - 5.7L V8 LS1/6 1997 Moregrun Metallic 318ti - Gone
1998 Schwartz II sport 318ti - M50TUB25/5 | | | | | 10-14-2008, 07:28 PM | #15 | | Senior Member Join Date: Mar 2006 Location: Golden, CO Posts: 283 |
I figured thats how it works but wasnt sure... thanks for the help __________________
e46 325 brake upgrade, Dinan engine chip, UUC SS brake lines, UCC rotors, m68 17in wheels, Conti extreme contacts, Billstein sport shocks, H&R springs, M3 shock mounts, B&B triflow exhaust, K&N cone filter, Magnecor 8.5 wires, Meyle control arms with caster , Hawk ceramic pads, Understeer M3 SSK, UUC SS clutch line, 320 trans mounts. | | | | |
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