Sachs clutch disc changes

[Ducman]

Just ordered a replacement Sachs disc from our host and noticed the disc looks quite different than the same part number unit I put in back in 2011.

915.116.011.22 Sachs part number 1878 005 583 ~’72 -‘86 911

I suppose Sach might change construction over time but it concerns me that newer unit does not seem to have as wide a friction area and the newer unit has a single spring in each location where the older version has a nested dual spring in each location.

Any experience? I use this in a hp engine with upgraded pressure plate.

[proporsche]

hi ,do some search--if it is working... i went trough it last year..i even trace down the manufacturer which has changed form Sachs-Weiden in Germany to Sachs-Slovakia in Bratislava

here it is
Sachs Power clutch kit

Ivan

[john walker's workshop]

10mm less across the facing. I don't like it either, but it is what it is. Seems to work on street cars at least.

[da Vinci Dan]

I seem to remember a change in the mating surface material to compensate for less surface area. If not, and an hp application = more slippage and increased wear rate. I would share your concern. Sachs is a good company, would be surprised if friction material was not modified.

[Brian911T]

I went through the same concerns. If it helps I installed a KEP stage 1 with this new updated sachs disc behind my 930 motor with 915 trans and it works great so far. KEP also makes a disc that has the larger friction surface like the older sachs units if your looking for something else to use.

[Trackrash]

If you look at the spline in the center, it looks like a Porsche spline in a universal disk.

BTW, I have been using an aftermarket disk, (I think it also fits some Ford?) in my car for several years and have not had problems.

[Ducman]

Originally Posted by proporsche

hi ,do some search--if it is working... i went trough it last year..i even trace down the manufacturer which has changed form Sachs-Weiden in Germany to Sachs-Slovakia in Bratislava

here it is
Sachs Power clutch kit

Ivan

Thanks Ivan, this looks like the setup I have. I will install it and see

[Tippy]

I'd be more concerned if the outer diameter was smaller. Inner probably has less of an effect.

[rtu0894]

Ordered a new Sachs disc and was ready to send it back! Did a quick search and it looks like most of the threads on this were a little old. Any updates on the 'less surface area'? I didn't find anything relatively new. Is this just the way it is now? Thanks

[Trackrash]

Isn't there a Ford disk that shares the same basic dimensions as the 915?

[3rd_gear_Ted]

Originally Posted by Brian911T

I went through the same concerns. If it helps I installed a KEP stage 1 with this new updated sachs disc behind my 930 motor with 915 trans and it works great so far. KEP also makes a disc that has the larger friction surface like the older sachs units if your looking for something else to use.

+1
Go to clutch for short geared 915's

[Eagledriver]

If the only change is the loss of 10mm inner diameter friction surface, the clutch will actually handle more torque. I’m sure it will work just fine.

-Andy