E36 M3 lightweight flywheel fit the E36 325??

[captain_chaos]

Hi, sorry if this is in the wrong category.
I seen the E36 BMW lightweight flyweel in the shop and the price seems reaaaaaly cheap! Just wanted to know what company actually makes them? Becuase I am weary of cheaply priced parts (sorry to all the guys at driftworks) just know that normally you get for what you pay. And what sort of power output those flywheels are rated to?
Also wanted to know if that flywheel would fit my e36 325 (cast iron block M50B25). As far as I know, the 3ltr M3 lump is just my engine but on steroids
If no then, anyone know of any other places that would sell a lightweight flywheel that would fit my engine at a good price?

Cheers

 

[SkidNZ]

you can just get ur orignal flywheel lightend, any machinist should be able to lighten it and re-balance it for you

 

[dale_b]

There a dual mass fly as standard, driftworks do a lightweight one that i'm about to buy for my 328, it's the cheapest you'll find in the uk, I only found this thread because I was searching to see if anyone was selling one used before I buy a new one. you need to use a m3 or e34 m5 clutch, I'm using an m5 paddle clutch and m3 pressure plate.

 

[Stavros]

just know that normally you get for what you pay

You dont though, thats the thing.
Just most companies know thats what people are daft enough to believe so put huge markups on their stuff, selling it for crazy money, and that actually HELPS sales as people in the UK just assume somethings good because its fucking mad money, lol.

 

[Mike@TDSW]

theres a popular mod using oem parts from an e30s m20 engine for a lighter flywheel.
Taken from a site of some bloke thats done it

As I wanted to ditch the E36 dual mass flywheel I trial fitted the E30 325i flywheel. When torqued up the back face of the flywheel touched a few castings on the block. Namely the flywheel timing/locking inspection tube and the rear 2 sump bolt webs. To overcome this problem you could have the backface of the flywheel skimmed, with the added bonus of reducing the rotational mass even further. As I was short of time I ground the offending casting webs back just enough to offer the E30 flywheel sufficient clearance. The flywheel then fits to the back of the M52 crank using the E30 flywheel bolts (the E36 ones are too long). A new e30 325i clutch was then fitted with a new E36 release bearing and E36 clutch fork. This was all followed by the 5 speed ZF gearbox. As I'd used an E30 325i flywheel I also had to fit the E30 starter motor rather than the E36 one.

 

[dale_b]

i did look into that mike but the M3 set up has bigger diamiter contant area which i thought would be a lot more benifitial for drifting.

 

[Daddy_D]

I believe from previous reading the people who did the M20 flywheel is not a saving money mod. In fact with the work of skimming further and making it fit by buying the proper bolts and motors and .....blabla you can get the Fidanza flywheel + clutch that bolts on straight on for around 300gbp. The overall cost of the M20 mod.

Link added: http://tinyurl.com/yhuzwg4

 

[captain_chaos]

I been looking about and after recently getting a 323 coupe which will provide a nice, undamaged and rust free home for my M50 lump. The 323 seems to use the same box that my 325 comes with but according to realoem.com before a certain year if i remeber right, the 323's came with a larger diametre flywheel like the 328s and M3's and then they had the smaller ones bolted to them like the 325. Anyone has any ideas? Because its the box that actually causes the bother with the M3 flywheel being bolted to my 2.5. When I get time, I will take the box off the 323 and see what the craic is and if I cud fit a bigger lightweight flywheel on.