UUC Motorwerks USA!
Anwendung: Für Turbo/Kompressor Fahrzeuge - und Rennwagen.
Der Satz beinhält folgende Teile:
-Segmentierte Kevlar M5 E34 240MM Sportkupplung.
-Ausrucklager.
-Leichtgewicht CNC gedrehtes 6061-T6 Aluminium-Gewicht nur 3,86KG.
-Kupplungs-Zentrierdorn.
Der Reihe 6er fühlt sich oft ein bisschen träge an - mit ein leichteres Schwungrad bekommen Sie ein deutlich sportlicheres Ansprechverhalten -und Ihr BMW fühlt sich schneller an. Die Reaktionszeit wird durch dem leichteren Schwungrad erheblich reduziert, und Ihr BMW-Motor hat einen wesentlich direkteren Kontakt mit dem Gaspedal. Die grosse M5 Kupplung ist auch wesentlich stärker als die original Kupplung - und findet auch Anwendung bei die meisten getunten BMWs.
UUC Motorwerks eigene Beschreibung (englisch):
For manual transmission cars only. By reducing rotational mass within the drivetrain, the effect is a reduction in "virtual mass" of the car which results in quicker acceleration and faster throttle response for improved revmatching when changing gears.
- Quicker acceleration.
- Faster throttle response.
- Quicker rev-matching.
- Increased power capacity with uprated clutch options.
- Elimination of SAC (Self-Adjusting Clutch) mechanism in some models.
Specifics:
The replacement flywheel is precision machined from aircraft-grade aluminum and fitted with a replaceable steel friction surface and starter ring (some applications also have integral ignition timing ring). Depending on the application, will accept a standard replacement clutch (or performance alternative), or special "Stage 2" applications that utilize an alternate clutch design for greater torque capacity and durability. Weight reduction varies by model, approximately 25%-60%. All applications use a sprung-hub clutch disk to minimize gearbox noise.
There are three basic enhancements to the driving experience:
First, the driver will experience quicker acceleration, most notably in
the lower gears. Due to the "virtual mass" reduction, the cars
performance will be improved.
Secondly, throttle response becomes quicker. Instead of waiting
for the heavy original flywheel to "catch up" with on- or off-throttle
input, the lighter flywheel reacts faster. This results in easier heel-toe
rev-matching for enthusiast or track driving and an overall more
"lively" feel to the car.
Thirdly, torque/horsepower capacity is increased with the use of a
UUC performance clutch or Stage 2 upgrade. This is particularly
important for vehicles modified with supercharger/turbo systems.
How a Lightweight Flywheel Works:
There are two schools of thought concerning lightweight flywheels. The first is that they do not contribute to power output. The second is that they do. Which thought is correct? In fact both, in a way, are correct.
If we measured the power output of an engine first with light flywheel and then again with the standard part on an engine dyno, no change in power will be seen to occur. At first it appears that the light flywheel has done nothing at all. This is not the case. A dyno that shows max power at constant revs does not demonstrate what happens to
an engines power output in real life situations - like acceleration. If an engine is accelerated on a dyno (we are talking about a rate of around 2000rpm a second) it would show a power output of around 20%-25% less than at the constant rev state. The reason for this is that when accelerating a vehicle the engine not only has to push the total mass of the car but the internal components of the engine need to be accelerated also. This tends to absorb more power as the
extra power is used accelerating the internal mass of the engine components and is why a motor accelerating on a dyno will produce less power than at constant revs. Also it must be remembered that the rate of acceleration on the engine internals is much greater that the rest of the car. This would then suggest that by lightening the flywheel, less power would be required to accelerate it and therefore more power would be available to push the car along. Now, it may seen unbelievable that by removing a few pounds from the flywheel a noticeable difference to a 3000lb+ cars acceleration will be made. In fact the difference is quite noticeable and the secret behind this is hidden within the gearbox. Everyone knows that cars accelerate at a greater rate in low gears, this is because a cars gear box basically a mechanical lever and just like when using a leaver to lift a heavy object, the gearbox reduces the mass of the car that the engine sees. For example, in first gear an engine will see the car's mass as only around say 250lbs but the engine internal mass would still remain around 45lbs. It is now easier to see were the extra performance comes from when you lighten a flywheel. You effectively "lighten" a car by more than 10% in first gear just by removing mass from the flywheel. As the gear used increases this "lightening" effect is reduced. This is why cars acceleration improvement reduces in higher gears, to very effect in top gear. Great for drags and tight race tracks but will not increase a car's top speed.
The calculations include the diameter of the flywheel, weight lost, gear ratios including 6-speed application, and typical differential gear ratio.
Special clutch options available:
-Genuine BMW clutch (most applications)
-Performance Organic - smooth, OE-style operation with greater clamping force and increased torque
capacity, recommended for slightly modified engines or harder driving use.
-Segmented Kevlar - smooth, OE-style operation with extreme torque capacity, recommended for
supercharged/turbocharged cars.
-Cerametallic - extreme torque capacity, recommended for high power drag race cars that see street use.
Engagement more abrupt than above styles.
-Multi-Puck Ceramic - extreme torque capacity, recommended for cars that see mostly drag racing use.
Can be street-driven, engagement in lower gears very abrupt.
Unter www.uucmotorwerks.com können Sie mehr UUC Teile sehen, falls Sie etwas finden was Ihnen interessiert machen wir Ihnen sehr gerne ein unverbindliches Angebot!
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