IMPORTANT:
NOT FOR 330 6-speed or 325 built after 8/2003. See
application guide for these applications.
Stage 2 flywheel - M5 clutch
conversion for all 1999- 9/2003
production date E46 6-cylinder 3-series (5-speed
models), Z3 2.5/3.0 with
M54 engine, 1996-2003 E39 530i/528i/525i/523i
Ultimate throttle response and
faster acceleration at your command!
National-level race winners use the UUC Stage2/M5 clutch combo.
UUC's exclusive-design "sprung hub" clutch design Stage II
lightweight flywheel has been named one of European Car magazine's
"Top 10 Products"
"Stage 2" racecar technology you
can drive on the street...
Tipping the scales at only 8.5lbs, this aluminum flywheel boasts
the best features in its class (high-speed balanced, correct dowel
hole, replaceable friction surface, Made In USA quality) , but is
designed to
use the clutch disk, pressure plate, and throw-out bearing from the
3.6 liter E34 M5.
The total weight
of the M5 clutch disk and pressure plate combo is greater than that
of a stock E46 3-series clutch, so we have reduced the Stage2 flywheel
weight to achieve an overall rotating mass that is essentially
identical to a typical 11.5lb lightweight flywheel that utilizes a
standard E46 clutch.
This clutch has several advantages for the enthusiast driver:
- Maintaining the reliability and over-the-counter availability
of a BMW factory part.
- Greater clamping force than standard 3-series clutch.
- Incorporates a sprung-hub design to minimize gear rattle,
includes heavy-duty steel pressure plate.
The advantage of a sprung-hub clutch design is improved resistance
(and in many cases, complete elimination) of the residual
chattering noise at idle that some lightweight flywheel-equipped
cars can experience.
Because BMW specced this clutch for use on the powerful S38-series
engine in the M5, it is up to the task of handling the output from
a modified M50-series motor (all '99-'06 6-cylinder E46 3-series
and M3, and E39 5-series/6-cylinder models).
UUC customers have been using the
Stage 2 & M5 clutch setup in turbo or supercharged E46s
with fantastic results. Our own testing has shown the M5 clutch to
reliably handle in excess of 450hp.
The UUC Stage 2 flywheel and clutch assembly has been used in the
"test platform" M3 of Eurosport High Performance's supercharger
development, reliably handling many miles and dyno runs in this
powerful machine. UUC also provides many US and European
turbo and supercharger tuners with the Stage2 setup.
You can be assured not only of the performance increase you will
experience, but the long-term ease of ownership that comes with
knowing a replacement clutch is never any further away than your
dealer's parts counter.
Now available - complete Stage 2 flywheel and clutch kits with
choice of these clutch components:
- OEM BMW M5 clutch kit (organic)
- UUC Performance Organic (performance street/track organic)
- UUC Segmented Kevlar (high power turbo/surpercharged street/track
use)
Please call UUC to discuss your clutch requirements.
All kits come complete with Stage 2 flywheel, pressure plate,
clutch disk, throwout (release) bearing, crankshaft bolts, gall
plate, and loc-tite.
applications:
330, 328, 325, 323 1999- 9/2003 production date 5-speed
models
Z3 2.5/3.0 with
M54 engine
E39 530i/528i/525i/523i 1999-2003
models with manual transmission only.
technical details:
- construction: CNC machined 6061-T6 aluminum
- dowel pin hole: enlarged like factory-fit.
- friction plate: replaceable, 1050 steel (suitable for any
clutch material).
- balancing: 11,000rpm and spin-burst tested to 14,000rpm. SFI
CERTIFIED
- weight: 8.5 lb
- pressure plate, throwout bearing & clutch used: '91 - '93
E34 M5
Source: Made in USA
Professional installation recommended.
© 2002-2012 UUC Motorwerks
