Displayed price will automatically adjust depending on clutch chosen Replacement clutch kits for 2002-2004 545i and 645Ci (up to 7/2004 production date) Includes: pressure plate, clutch disk, release bearing. How to choose a clutch
The selection of the correct clutch for the intended application is critical to good operation, including the characteristics of (but not limited to):
Quite often, the first impulse is to get "too much" clutch. This is often a very big mistake, as there will be compromises in some or all of the operational features listed above.
The first step in identifying what clutch to get is dependent on the characteristics of the car. Ask these questions:
As we are dealing with BMW applications here, let's use an widely-understood example - the 1992-2004 6-cylinder 3-series. Over this 12 year period comprising two different chassis, we are still dealing with virtually the same fundamental engine and transmission designs. Power ranges from around 190hp to 333hp. Typical bolt-on modifications bring many of the early models up to the 215hp-260hp range and later models around 350hp. Extensive modifications including supercharging or turbocharging bring power to the 350hp-450hp range, with some examples in the 500hp-600hp range. The typical BMW enthusiast uses the car primarily for sporty street driving, and the occasional auto-x or track day. The 3-series is also popular as a heavily-tracked car and dedicated race car. Some see time spent drag racing, whether occasionally or as dedicated drag racers. So it is apparent that we have a broad range of power and use to contend with. Presented in increasing "aggressiveness", here is a brief overview of clutch compounds, their power handling, and other characteristics: (note that hp figures are generalized, pressure plate clamping force and torque curves are additional factors)
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