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KAVS R53 MINI Cooper S Reduced Supercharger Pulley Upgrade Kit Reviews

5 Rating 45 Reviews
Read Orranje Performance Ltd Reviews

So, what is a Reduced Supercharger Pulley?
Unlike a turbocharger, which is propelled by high-pressure exhaust gas, a supercharger is driven by a belt connected to the crankshaft. You, therefore, do not suffer the effects of 'turbo-lag' (where there are not enough exhaust gases to compress the quantity of air required lower down in the rev range). The MINI supercharger is the Eaton M45; which is a roots blower. This means that within the turbine housing, two specially crafted lobes with a minimal clearance of one another spin in order to compress air, which then passes through the horn, into the intercooler, out the other side and into the head and cylinder block. The way the lobes spin is that two cogs interlink at one end outside of the main air-flow path, and connect to a pulley on the outside of the turbine housing.


This is where it gets interesting.[...]

About Orranje Performance Ltd:

Created for MINI enthusiasts by MINI enthusiasts who have a strong desire to bring top quality performance and styling products to the MINI market. Orranje offer quality and affordable parts, with an aim to help you build your ideal MINI.

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Email:

info@orranje.co.uk

Adam Holland
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Posted 5 months ago
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Posted 6 months ago
COOL
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Posted 6 months ago
Hi Kam, Thank you for your product rating! Is there anything we could have done to receive a full 5 stars? Many thanks, Oli @ Orranje
Posted 4 weeks ago
Great knowledge for Orranje, recommended belt size for the new pulleys and plugs, Thanks
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Posted 6 months ago
Paul Fairbank
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Posted 6 months ago
Christopher Gowling
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Posted 6 months ago
Euan Dangerfield
Verified Reviewer
Very happy with this kit. Have done a few motorsport events since fitting and car pulls well. My mechanic says belt will wear a lot quicker with the reduced pulley, so belt has already been replaced.
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Posted 6 months ago
Hi Euan, Thank you for your review. We have never encountered belts wearing quicker with smaller supercharger pulleys - the JCW was fitted with an 11% smaller pulley from factory, and did not require the belt to be replaced sooner than the S. We would always advise checking and changing the belt as often as required. Many thanks, Oli
Posted 6 months ago
Nick Elsworth
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Posted 7 months ago