E30 Zone

Quick question.

Can an E34 M30 clutch be used with an E28 single mass fly wheel?

No, the pressure plate on the E34 clutch is quite a bit thinner and the friction plate is unsprung.

Its in here with pics where some one made a mistake.

http://www.e30zone.net/modules.php?name ... sc&start=0

Are you after a light fly wheel combo?

Bugger! I just bought a brand new genuine BMW E34 clutch for £80 posted!

Bloody bargain but in the haste of seeing said bargain a buying i forgot about the dual mass fly wheel they have!

Oh well!

i'm looking for a light flywheel that will fit an M30 eng with M10 GB with a decent clutch , maybe a paddle clutch

M30 fly wheel will be too big for the bell housing on an M10 box, use the M10 fly wheel (which is single mass and light) with an uprated clutch.

leeparkes wrote:No, the pressure plate on the E34 clutch is quite a bit thinner and the friction plate is unsprung.

Its in here with pics where some one made a mistake.

http://www.e30zone.net/modules.php?name ... sc&start=0

Are you after a light fly wheel combo?

what a fucking nightmare that was

Live and learn Eren

Rav335uk wrote:Live and learn Eren

Definantly Rav-man!

leeparkes wrote:M30 fly wheel will be too big for the bell housing on an M10 box, use the M10 fly wheel (which is single mass and light) with an uprated clutch.

M10 flywheel, E28 M535 clutch E34 getrag gear box.

Yes or no?

Isn't the face on the M10 fly smaller than the clutch face of the E28?

Im going to say no. The friction plate on an M30 clutch is 240mm and M10 is iirc 215mm, im not certain but im sure the M10 fly wheel is also smaller in diameter so that would cause issues fitting the pressure plate then hoping the starter will hit the ring gear.

If you already have an E28 535i clutch kit you can use a single mass fly wheel from any E28 M30 or any M30 pre 87.
Im using one from an E28 525i as it lighter than the 3.5 ones @ 7.5KG (3.5 are 10KG)

Edit: must learn to refresh the page before posting

F*ck it, i'll stick with the DMF.

I weighed a Duel mass fly with the clutch and it was around 20KG

I fitted a TTV custom fly wheel and a e34 3.6 m5 clutch to a customers m30 the other day, It made a real difference to the way the car goes

leeparkes wrote:Im going to say no. The friction plate on an M30 clutch is 240mm and M10 is iirc 215mm, im not certain but im sure the M10 fly wheel is also smaller in diameter so that would cause issues fitting the pressure plate then hoping the starter will hit the ring gear.

If you already have an E28 535i clutch kit you can use a single mass fly wheel from any E28 M30 or any M30 pre 87.
Im using one from an E28 525i as it lighter than the 3.5 ones @ 7.5KG (3.5 are 10KG)

Edit: must learn to refresh the page before posting

M10/M30 flywheels are the same diameter but smaller friction area. I'm using with my E34 535i engine: M10 flywheel, M10 paddle clutch rated for 250bhp from CG clutches, M10 release bearing, M10 gearbox, M30 starter motor, M20 prop and gear linkage.
M30 dual mass vs M10 single mass:


I did a dual to single mass flywheel swap on my E32 735i, I saved 4KG in total by swapping!
M30 E28 528i single mass vs M30 E34/E32 dual mass:

great advice here, i think i will do the same as rob0r which is: E34 535i engine: M10 flywheel, M10 paddle clutch rated for 250bhp from CG clutches, M10 release bearing, M10 gearbox, M30 starter motor, M20 prop and gear linkage.

The bits i need are M10 GB, M10 Flywheel, M10 release brg, M20 prop and gear linkage if anyone can help?

rob0r have you got a link to where you bought that clutch from please?

CG Motorsport - http://www.clutch-specialists.co.uk/

Here's the same ebay item that put me onto them.
http://www.ebay.co.uk/itm/BMW-E30-316-3 ... 0055153418

I actually phoned them up and explained what I was using it for (which caused a fair amount of confusion!) and asked them to clarify if it was for M10s or M40s since they list E30 316 318 between the years of 1983 and 1995. They stopped making M10s around 1987-1988...

What I will say is that the clutch fits fine but I have only driven the car once. So far the clutch is a similar feel to the OEM clutch, I thought it would be much more brutal. Since I've only driven it once I can't really give a recommendation on how they hold up!!

If you want to see my clutch and fitting it, see here
http://www.e30zone.net/modules.php?name ... c&t=204335

As far as props and gear linkages go, 320i and 325i differ in length. My car was a 320i converted to a 325i before I got it and the prop and linkage from the car was a perfect fit. I don't know if they are 325i or 320i prop and linkage... I can attempt to measure the bits when I'm next underneath the car if necessary.

Thanks Rob0r, sounds like its going really well. I have a 318i and a 318is propshaft, i'll measure them up and see how they compare to yours.