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MPL Clutch Slave Cylinder

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Old 04-25-2012, 08:07 PM
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time666
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Default MPL Clutch Slave Cylinder

Any one else tried out one of these clutch slave cylinders from MPL tuning in Germany?
http://www.mpl-tuningparts.de/english/porsche.html

I had one sent over and after this was fitted (along with new clutch) this made a very noticeable difference and the clutch is now pretty much as light my modern 2009 car, a huge difference. Well worth it if anyones looking to replace. Well engineered piece of kit.
Old 04-25-2012, 08:17 PM
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Vandit
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I just replaced mine w/ an OEM equivalent FTE brand piece.

I love my heavy clutch feel. It pairs well w/ the stiff brake pedal.
Old 04-25-2012, 08:26 PM
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time666
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It did work well on the 1200mile round trip to the Le mans 24hr race in france though!
Old 04-25-2012, 08:36 PM
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Ajstephe
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Was looking at softening the clutch and seems like a good thing to do whilst the clutch on mine is being replaced.

Did you do yours recently and was it expensive? Did you source the part directly from the manufacturer?
Old 04-26-2012, 03:05 AM
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freedman
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A few on 911Uk have fitted them, all with universal praise

You can buy direct or through E Bay, where you might get it slightly cheaper

I would be inmterested to see how much difference a new standard slave makes by comparison, they are considerably less money
Old 04-26-2012, 07:52 AM
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ThomasC2
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Looks nice. how much does it cost?

Thomas
Old 04-26-2012, 08:32 AM
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GeorgeK
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Let's hope it works better than their english...
Old 04-26-2012, 12:20 PM
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freedman
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Originally Posted by ThomasC2
Looks nice. how much does it cost?

Thomas
189 euros, direct from MPL, you can pick them up for less on ebay soemtimes
Old 04-26-2012, 12:41 PM
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boxsey911
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Originally Posted by freedman
A few on 911Uk have fitted them, all with universal praise

You can buy direct or through E Bay, where you might get it slightly cheaper

I would be inmterested to see how much difference a new standard slave makes by comparison, they are considerably less money
I had a new standard slave fitted and the feel of the pedal felt the same as it did before it was replaced (clutch wasn't changed at the same time). The pedal feels a little lighter since having a new clutch but it's only marginal.
Old 04-26-2012, 12:48 PM
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freedman
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Originally Posted by boxsey911
I had a new standard slave fitted and the feel of the pedal felt the same as it did before it was replaced (clutch wasn't changed at the same time). The pedal feels a little lighter since having a new clutch but it's only marginal.
Thanks Steve, so no point in that move, unless the existing one is failing/leaking
Old 04-26-2012, 12:56 PM
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boxsey911
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Originally Posted by freedman
Thanks Steve, so no point in that move, unless the existing one is failing/leaking
Yep, mine was getting that way so had it changed (along with the hose) while the engine was out.
Old 04-26-2012, 05:24 PM
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time666
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Yeah over the standard slave cylinder and this mpl there is a noticeable difference, i think the internals are slightly different design.

Even the garage (unit 11) that fitted this for me were suprised and asked for the supplier info and they have done their fair share of replacements. I managed to haggle to £140 inc shipping as i referred to the ebay history going from anywhere between £90 and £160. Well worth considering if your having a clutch done!

You are going to pay more over the porsche standard new slave but well worth it given the difference.
Old 04-27-2012, 07:41 AM
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ThomasC2
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Originally Posted by freedman
189 euros, direct from MPL, you can pick them up for less on ebay soemtimes
Thanks, that's only a few euros more than a OEM cylinder from an OPC in Sweden. You an find a OEM part cheaper than that from other suppliers, but this could be something for a future upgrade.

Thomas
Old 04-27-2012, 10:40 AM
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IXLR8
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Originally Posted by time666
Any one else tried out one of these clutch slave cylinders from MPL tuning in Germany?
I looked at them before deciding to go for a new OEM Porsche master and clutch slave cylinders from Sunset. I had the much talked about "grawk" sound when applying the clutch pedal along with an uneven, almost stepped action when engaging the clutch making smooth starts more difficult.

The MPL unit claims an approximate 30% reduction in pedal force. The only way to achieve that is by changing the piston diameter, which they admit to doing in their on-line brochure. As a result, clutch slave cylinder rod travel will effectively be reduced.

Along with a new clutch hydraulic hose and a complete pedal assembly rebuild (cleaning, new pedal bushings and re-greasing), clutch action is whisper quiet and ultra smooth.

An update to those observations: that is how the clutch actuation system felt just after finishing the installation and while still parked in the garage waiting for winter to come to an end. Shortly after getting back on the road, the the much-talked-about-on-Rennlist "grawk" initiated again and has not gone away; it is sporatic. I can only assume the issue is the original and old pressure plate and/or the release bearing actuator fork.

Brake fluid used was ATE Super Blue and flushing/bleeding was performed with the aid of a Motive Products Power Bleeder, both sourced from Pelican Parts. I modified my Power Bleeder to make using it in the "dry method" easier.

Not a DIY set of instructions, but plenty of pics with some tips. This is for a 993; I don't know how similar it would be to a 964.

Last edited by IXLR8; 01-19-2013 at 11:45 AM.
Old 04-27-2012, 10:41 AM
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kylejohnston1
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Does anyone have a link to an ebay auction or the MPL ebay store?


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