ALTA Performance

Griots Garage Products

MINI Supercharger Pulley

Price:
Part #:
$129.99 - $329.98
AMPENG20x

Installation Difficulty:

Instructions:

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MINI Supercharger Pulley

In 2002 ALTA Performance was the first manufacturer to design a two piece, taper fit Mini Cooper Supercharger Pulley. Today, It is the most imitated design on the market. Our latest version of the ALTA pulley has taken pulley design to the next level. Installation is easier than ever, and the results are even more fantastic.

The ALTA supercharger pulley will increase your MINI 's horse power by 20WHP. No additional modifications to the engine or ECU are required.

The ALTA supercharger pulley features a stainless steel supercharger shaft coupler with installation site aperture and direct torque technology. The ultra light aluminum body decreases rotational inertia and overall weight. Over-sized belt retainers and grooved teeth increase belt grip. A decorative end cap faceplate provides a clean sleek look.

Power

With the simple installation of this pulley and no other modifications boost is raised 3-5 psi and  engine output by 15 to 20 horse power. No other modifications to ECU required. Customers with other existing modifications, such as Cold Air Intake, Cat-Back Exhaust, or Crank Pulley will see even better results! Regardless the first time you hit the gas pedal, you will immediately feel the difference!

Pulley Size

ALTA Pulleys are offered in two sizes: 15 and 17% reductions. The 15% pulley is the market standard and produces smooth, safe power increases. For those seeking a bit more power, the 17% is the ideal choice! Builds boost at lower RPM's giving you even more power down low where you need it, combined with another 1.5 lbs at redline gives you the extra HP to conquer even the toughest challenge!

Ease of Installation

Simply lift the engine, remove stock pulley using the ALTA Version 2.0 pulley puller and slide your new ALTA Performance Version 2.0 pulley directly onto the supercharger shaft. Tighten the bolts, lower the engine back into place and your done! (Yes this has been simplified a bit, but click above and download a set of our highly detailed instructions. See below for the needed special puller.) There is no longer reason to remove the entire supercharger to pull off and press on a pulley.

Design-Body

The ultra light weight 6061T6 aluminum pulley body decreases rotational inertia and overall weight. Over-sized belt retainers and grooved belt teeth, preventing belts from jumping off, and increase belt grip. Cooling holes are drilled into the belt retainers to keep pulley temps in check. A decorative end cap faceplate provides a clean sleek look. Our pulley body and shafts are balanced to within .02 grams (even better than stock.)

Design-Shaft Coupler

The ALTA Performance SuperCharger pulley features a stainless steel supercharger shaft coupler with installation site aperture and we are the first to offer Direct Torque Technology( DTT ). The end of our shaft coupler is open and allows you to visibly see that the shaft collar is fully seated. DTT grips the supercharger shaft better then any press fit pulley and will work for those consumers who have had other pulleys slip and cause damage to the supercharger shaft. Our hub will attach to supercharger shafts that have been worn down as much as .020".

DTT allows the use two different materials (stainless steel and aluminum) without having problems with the different expansion rates of such metals. ALTA again takes pulley technology to the next level. With Ten-Years Experience with MINI Performance, you can always expect the best with ALTA!

Buy in Kits and Save

Save money when buying packages featuring our complimentary performance products. This part is available in a kit with products also recommended for maximum performance. See if one of our packaged deals is for you.
» Take a look.

Installation Tools

The ALTA Performance pulley puller is the perfect tool to reliably remove the factory supercharger pulley from your MINI. A must for club events or group installations. You can RENT or PURCHASE this tool directly from ALTA Performance. If you rent the tool at the time of a pulley purchase, the rental is FREE (Deposit Required.) If you need to simply rent one to perform all of your installations you pay just $29.99 (Deposit Required.)

5 Year Warranty

ALTA Performance warrants to the original purchaser, that all ALTA products be free from defects in material and workmanship within a period of sixty (60) months from the date of purchase. *Some exclusions apply
» Read Full Warranty

Off Road Note

NOTE: This item may be for off-road use only in your area. See Terms and Conditions prior to ordering!
» Learn More

Specifications

Version 2.0 Body Aluminum 6061T6
Body finish Black anodized
Version 2.0 Hub 303 Stainless Steel
Bolts Grade 12.9 Socket Cap
Lock washers Grade 10.9 HI-Collar

Compatibility

2002-2006 Cooper S/ JCW Yes
2004-2008 Cooper S Cabrio Yes
2006 Cooper S GP Yes
*Supercharged MINI Cooper S only.

What People Are Saying

Don't Take Our Word For It

Alta version 2 pulley... 2 piece design makes install a breeze and the power isn't bad either! Bryan Dake MINI Cooper Owner

Dyno Charts

Proven Horse Power


Cooper S, ALTA 15% Supercharger Pulley Test

Above is a test we did on our Stock Mini Cooper S to show the HP and TQ gains had by installing the ALTA 15% smaller Supercharger Pulley. The roughly 20WHP and 20ft-lbs of torque gained are huge, completely transforming the MINI into a new car! 17% SC pulley customers can expect roughly 2-3WHP more than you see here.

In The Box

(1) ALTA Supercharger Pulley Hub
(1) ALTA Supercharger Pulley Body
(1) Allen Wrench
(5) Bolts & (5) Split Washers
Instructions
Warranty
Stickers
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