[Biturbos4] Decreasing Cluth Stiffness--How?

j.koenig koenigj at comcast.net
Thu Dec 13 06:13:41 PST 2007

Those all sound like very complex mods, if not impossible.

I'm thinking you need something that exerts more force on the clutch release arm (or 
requires less pedal force), which you would get with a larger slave cylinder, no?  I just 
get tied up in knots trying to figure out whether that's correct or backward!  For a given 
pedal force, you get a given hydraulic pressure, and for a given hydraulic pressure you'd 
get more force on the release arm with a bigger slave piston, right?

If so, maybe an RS4 slave cylinder offers that option.  I don't know.  Just a thought. 
Good luck with your hip.


----- Original Message ----- 
From: <paleotm at bellsouth.net>
To: <biturbos4 at www.audifans.com>
Sent: Wednesday, December 12, 2007 9:06 PM
Subject: [Biturbos4] Decreasing Cluth Stiffness--How?

I finally went from a 97 A4 to a 01 S4, but since I'm old and beat up, the firm clutch is 
causing me nerve problems in my left hip. I get in the A4, whose clutch is light as a 
feather in comparison, and have no problem.

Here are the ideas I've heard:

aftermarket clutch (but wouldn't they be even firmer?)
lengthen clutch arm (i don't think possible)
use 8 cyl. master cylinder (will it fit?would that lighten it at the peddle?)

I've spoken with a few mechanics and have heard all stock S4 clutches are stiff (I would 
never notice it if my back wasn't screwed up), so I figure someone has figured this one 


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