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BMW 3-Series (E90 E92) Forum > E90 / E92 / E93 3-series Powertrain and Drivetrain Discussions > N54 Turbo Engine / Drivetrain / Exhaust Modifications - 335i > SPEC Clutch throwout bearing

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      04-22-2013, 02:53 PM   #1

Drives: AW 1M
Join Date: Oct 2010
Location: Wash, DC

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SPEC Clutch throwout bearing

I'm currently running a Spec Stg 2+ clutch with Spec's steel single mass flywheel.

I've tried both Spec's throwout bearing -- which like the stock design can be installed in either a low or high position -- as well as the stock BMW bearing.

In both cases -- with the throwout bearing installed in the low setting ---the engagement point is toward the very top of the pedal travel (though it is just a bit lower with the stock throwout bearing).

My concern is that the length of the to bearing may, as the disc wears, prevent full engagement and in that manner cause premature slip/disc glazing.

BTW, my understanding is that Spec previously offered three different height to bearings (low, mid, high) before they moved to their current stock-based design.

I'd prefer a lower engagement point and am trying to determine if there is a cost-effective way to obtain it.

Others' experience/advice/suggestions greatly appreciated!



Last edited by MDORPHN; 04-22-2013 at 03:00 PM. Reason: spelling
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      04-22-2013, 05:37 PM   #2

Drives: 2008 335i
Join Date: Jan 2012
Location: Atlanta, GA

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Sounds like your disc may be thin if the pedal is too high with the stock TO bearing. Or maybe some variance in the pressure plate?
2008 335I E92, AW, VFF700, 18" Forgestar F14, M3 front/side, M-tech rear, AMS IC, H&R Touring Cup Kit suspension, HID AE, ER Charge Pipe & Synapse BOV, CIC Retrofit, Quafie, DSS, Defiv Lockdown, SPEC 2+/Steel SMFW, Walbro 450
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