What size clutch ‘41 sedan coupe

[cas3]

Kube, you cut the "blob" I call it, off all your flywheels? I do too. Two reasons, one, the writings of late great Rumbleseat, and Bruce Lancaster, thats the lightest "Ford "flywheel you can have without buying some aftermarket piece. Two, I have a lathe, so its fun and has no cost. You, a retired tool and die maker..I assume you have lathe at home too, So no cost. In the real world, I doubt the corner gas station that put the last clutch in in 1965 or so, would recommend the customer to pull the flywheel and send it out to a machine shop. The OP's car seems pretty original, so my statement would stand unless someone put a truck motor in with an 11" clutch. Not likely on the OP's car. The 9" flywheel with the blob cut off is a remarkable difference. They wind up fast, and decelerate fast, making shifting easier and you think you gained a bunch of HP.

Henry, and the rest of the industry at the time, believed in heavy flywheels. Model A's are 60 lbs! I forget the v8's, and what you loose by cutting off the blob, old brain seems to delete more than it takes in these days!

[Kube]

Originally Posted by cas3

Kube, you cut the "blob" I call it, off all your flywheels? I do too. Two reasons, one, the writings of late great Rumbleseat, and Bruce Lancaster, thats the lightest "Ford "flywheel you can have without buying some aftermarket piece. Two, I have a lathe, so its fun and has no cost. You, a retired tool and die maker..I assume you have lathe at home too, So no cost. In the real world, I doubt the corner gas station that put the last clutch in in 1965 or so, would recommend the customer to pull the flywheel and send it out to a machine shop. The OP's car seems pretty original, so my statement would stand unless someone put a truck motor in with an 11" clutch. Not likely on the OP's car. The 9" flywheel with the blob cut off is a remarkable difference. They wind up fast, and decelerate fast, making shifting easier and you think you gained a bunch of HP.

Henry, and the rest of the industry at the time, believed in heavy flywheels. Model A's are 60 lbs! I forget the v8's, and what you loose by cutting off the blob, old brain seems to delete more than it takes in these days!

At one time I knew how much lighter the wheel was once modified. Like you, the ol' memory bank doesn't work as well as it once had.
I did balance all flywheels prior to installation.

[Tim Ayers]

Originally Posted by Kube

At one time I knew how much lighter the wheel was once modified. Like you, the ol' memory bank doesn't work as well as it once had.
I did balance all flywheels prior to installation.

12lbs. seems to come to mind. I'm in the light flywheel camp. There really is no need to have such a heavy weight hanging off the end.

Like Cas3 mentioned, it is surprising how much liveness it adds to the engine without so much moving mass on the end.