shaving a flywheel

[Schnell 318]

Where can I take my stock flywheel to that will shave and balance it?
Will an average joe transmission shop have the know how to lighten a BMW flywheel properly?

[e30 gangsta]

Where can I take my stock flywheel to that will shave and balance it?
Will an average joe transmission shop have the know how to lighten a BMW flywheel properly?

I took mine to miami clutch. A big clutch place down here. And they refered me to a machine shop. Just get like 4-5 pounds taken off and get it resurfaced.

[Digitalwave]

I wouldn't bring it in to your corner transmission store.

Get a phone book and start calling local machine shops and engine builders and you will find a place that can do it. I found a machine shop in my town that did it for $120 (shaved and resurfaced).

[Schnell 318]

anyone know what a safe weight to get removed is?

[e30 gangsta]

anyone know what a safe weight to get removed is?

4 to 5 pounds like i said.

[erik325i]

I'm not sure how much the stock weight is, but I think most people bring it down to 12 Lbs.

-Erik

[silverfbimmer]

I thought a stock flywheel is like 24lbs. I could be wrong. I have also heard people getting them down to 12lbs also. E30 gangsta is if better to only have a few pounds shaved off?

[erik325i]

I thought a stock flywheel is like 24lbs. I could be wrong. I have also heard people getting them down to 12lbs also. E30 gangsta is if better to only have a few pounds shaved off?

If you look at the flywheel, you will see a huge mass of material on the back of the flywheel. You can safely remove all of that material with no ill effects. If you do that, I think it will bring it down to around 12 lbs I think. There is no real point of only shaving off a few pounds. If you are going to do it, might as well remove all of that material from the back of the FW.

-Erik

[e30 gangsta]

If you look at the flywheel, you will see a huge mass of material on the back of the flywheel. You can safely remove all of that material with no ill effects. If you do that, I think it will bring it down to around 12 lbs I think. There is no real point of only shaving off a few pounds. If you are going to do it, might as well remove all of that material from the back of the FW.

-Erik

Incorrect. ( I think ) They told me max was 6 lb before the flywheels looses it rigidity and starts warping. I got a few pounds taken off and it balanced out ok. I wouldnt go more than 6 pounds on mine. Anyone wanna chime in on this.

[Digitalwave]

My flywheel was 15lbs when finished, Jordan's is 12lbs. It really depends on your machinist.

[SlammedE30]

I've got a machinist who's done about 5 or 6 E30 flywheels for me. The avg. weight ended up at 13lbs, I had mine done even lower to 11lbs. No problems whatsoever, so the estimate of 6lbs being the max you can remove is probably just to cover your machinist's ass.
-Ted

[sweetride01]

Is there any point whatsoever in buying a lightweight flywheel, if you can have the stock one made almost as light for 1/4 of the cost?

[Ray Smoodiver]

Mine went in like this at 19.35lbs:



Came out at 13.55lbs like this:

[Digitalwave]

Is there any point whatsoever in buying a lightweight flywheel, if you can have the stock one made almost as light for 1/4 of the cost?

Most aluminum flywheels are 8lbs, you can't come close to that with a stock one.

[erik325i]

Most aluminum flywheels are 8lbs, you can't come close to that with a stock one.

Does that extra three pounds make a big difference?

-Erik