Lightweight Pulleys
CRMC-0009
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Only 9 left. Order soon!
$139.95
4.60/5 with 15 reviewsCravenSpeed
Scratch and Dent?
Occasionally, we get new parts or returns that have cosmetic blemishes that do not affect the functionality of the part. Rather than toss them in the scrap bin, we offer the parts for sale at a deeply discounted price. In many cases, the location of the blemish prevents it from even being seen once the part is installed. Like all of our products, we still guarantee it to be the correct fit and to work properly and will offer to exchange components should anything need adjustment, or simply set up a free return if you decide that you are not happy with the product. Our normal return policy applies to all scratch and dent products.
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Lightweight Crank Pulley for R53 Cooper S
The CravenSpeed stock size 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 perfectly balanced, and feature anodizing for superb wear resistance & strength. Our Cooper S R53 (2002-2006) stock size pulley weighs 1.09 lbs. We've even included a fresh OEM crank bolt in the package for you.
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. For an extra dose of power, our 2% overdrive pulley for the R53 , will trade the weight savings for a bit more boost out of the supercharger. The 2% overdrive pulley weighs 1.18 lbs.
Is This Crank Pulley Safe?
The pulleys on the Cooper S R53's engine, 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., determine when and how these harmonics and torsional movements occur.
Note: This Lightweight Crank Pulley is only for supercharged 's' mode MINIs
Free Domestic Shipping
We ship orders every weekday. All orders placed by 2:00 pm PT will ship the same day. You will receive a shipping notification when we print the label for your order. The tracking will not indicate that the order has been shipped until it is picked up and scanned in by the carrier. Orders placed after 2:00 pm PT on Friday will ship on Monday.
Our Team is comprised of a small group of dedicated individuals who each pride themselves on providing their best work to our customers every day. We are all willing to go above and beyond for our customers to make sure they are happy with their entire shopping experience. If you need anything, please drop us a line at support@cravenspeed.com and we'd be happy to help you out. Our customer service team will usually get back to you within the hour during business hours.
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