Cravenspeed Lightweight Crank Pulley
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Cravenspeed Lightweight Crank Pulley

SKU:  CRMC-0009
WEIGHT:  2.00 lbs
brand: Cravenspeed
Our price: $129.95
 
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Average customer rating:
5 out of 5
(based on 307 votes and 0 reviews)
 

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Details

These CravenSpeed pulleys are stock diameter (OEM sized) crank pulleys, utilizing the original belt layout. Since the crank pulley diameter is unchanged, they maintain alternator output at exactly stock output levels so you need not worry about flat batteries or weak charging capabilities. Through extensive weight savings afforded by 6061 aircraft aluminum construction, power gains of up to 10% are available depending on how your MINI is set up. CravenSpeed crank pulleys come fully balanced and counter-weighted, and feature anodizing for superb wear resistance & strength.

Releasing Power
The rule of thumb is that each pound of weight taken off the engine's rotating assembly is worth approximately 2.7HP. The concept is that the crank is a parasite; it does not put power to the drivetrain but still requires the energy produced by the engine to rotate. When you reduce this parasitic weight, you release power that was previously used only for spinning the supercharger and alternator.

Is this crank pulley safe? The pulleys on the R53's 1.6 and most new smaller engines have an elastomer (rubber ring) incorporated into the pulley that looks similar to a harmonic damper. The elastomer in the OEM pulley serves as an isolator, which is there to suppress natural vibration and noise from the engine itself, the A/C compressor, P/S pump, and alternator. The purpose of a traditional harmonic damper is to protect against crank failure from torsional movement. This is not necessary in the MINI or most modern engines because of the many advances in engine design and materials. Factors such as stroke, displacement, inline, V configurations, power output, etc., do determine when and how these harmonics and torsional movements occur.


The Cravenspeed Lightweight Crank Pulley is one of the many MINI Cooper Parts and Accessories that we carry and will fit the following MINI Cooper Models and Years:


Gen1 MINI:

R53 MINI Cooper S Hatchback: 2002, 2003, 2004, 2005, 2006

R52 MINI Cooper S Convertible: 2004, 2005, 2006, 2007, 2008

R-Fifty WHAT?? Confused about what model MINI you have? We’re here to help. Check this out for more information.

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Customers' comments

I am from the philippines and no one would ever thought that ordering all the way from this far would come out smooth. Thanks to outmotoring guys, i got my stuff nicely packed! Hoorah to chris for always replyin to my emails and to aaron for great attention and guidance!
eric jarin verzosa Thanks so much, I installed the MSD coil, MSD 8.5 mm wires and Iridium plugs. Mini runs much better, even idles at lower rpms and seem smoother in all gears.
I'm thinking it will pay for it's self in gas saving in short order.
Thanks again for offering these products.
Best Regards,
Ron Garcia
Ron I recently installed the aftermarket chrome interior package on my Mini 2 door coupe S. Prior to installation the carbon black interior felt dark and somewhat cheap. After installation the interior came alive. It appears much richer and bright and almost a different interior. It takes patience to install all of the pieces but it is time well spent. Highly recommended.
Lou Kirchner
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