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Discussion Starter · #1 ·
I'm looking for a performance clutch. RennSport shows Sachs makes one but there is not much info on it. Anyone have anything else to add?
 

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The best thing to do is to call them up. I know Sachs makes different sport clutch setups. The main questions you want answered are:

- is the clutch hub solid or sprung?
- is the pressure plate a lightweight setup (i.e. aluminum)

A solid-hub clutch is really impractical to drive on the street. You want to stick with a sprung-hub clutch. A lightweight pressure plate paired with a lightweight flywheel are a nice combination if you race, but is kind of annoying on the street--easier to stall, chatters more. Also, do you have some serious engine mods that might warrant a sport clutch? If not, it's kind of a waste of money.

A better comprimise for the street would be a Sachs Power Clutch which goes for ~$500.
 

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Discussion Starter · #4 ·
Well, the reason I'm in the market is I am about to intercool and increase the boost of my SC setup and another on the e46 said he was getting slippage(sp) around 375 with his turbo setup. With the intercooler and boost change I should be well over that.
 

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BlkDinan said:
Well, the reason I'm in the market is I am about to intercool and increase the boost of my SC setup and another on the e46 said he was getting slippage(sp) around 375 with his turbo setup. With the intercooler and boost change I should be well over that.
Ahh. In that case, even the Sport Clutch might be inadequate. They typically are designed to handle somewhere around a 20% increase in power. You should definitely give RennSport a call. Do you have a lightweight flywheel? If you do, make sure you discuss it with them as certain high performance clutch kits don't work well with them. I'm suspecting you might have to go to a heavy-duty multi-plate clutch setup.
 

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BlkDinan said:
Well, the reason I'm in the market is I am about to intercool and increase the boost of my SC setup and another on the e46 said he was getting slippage(sp) around 375 with his turbo setup. With the intercooler and boost change I should be well over that.
You know, there's alot of bad mouthing of BMW clutches. I find it unwarranted.
It's not unusual to get well over 100,000 miles on a clutch on these cars.
Clearly though, if you're high reving and dropping the clutch, of course you'll burn it.
I imagine a young man with 375 bhp turbo would be burning clutches up right quick, but does that mean it's a poor quality clutch?
 

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AlexRDI330ci said:


You know, there's alot of bad mouthing of BMW clutches. I find it unwarranted.
It's not unusual to get well over 100,000 miles on a clutch on these cars.
Clearly though, if you're high reving and dropping the clutch, of course you'll burn it.
I imagine a young man with 375 bhp turbo would be burning clutches up right quick, but does that mean it's a poor quality clutch?
Did I miss something here? Nowhere in what you quoted is the BMW clutch badmouthed. We're just discussing clutch alternatives for those of us who are running engine mods that take us beyond the designed capabilities of the stock BMW clutch. BMW uses Sachs clutches, and we happen to be discussing the higher performance alternatives offered by the same company. You are right in pointing out that the BMW clutch is high quality stuff.
 
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