While  MINI may have given Cooper "S" owners a literal boost over standard Coopers there is no reason to be comfortable with 163HP. One of the best ways to turn up the power is to turn up the boost.

The ALTA Performance 15% reduction supercharger pulley does just  that. With the simple installation of this pulley and no other modifications will raise boost 3-5 psi, and more than 20WHP.

With a 15% pulley the rise in boost pressure will increase 15to 20 horse power. No other modifications to ECU etc., required. Customers with other existing modifications or those seeking more HP the results can be even better with the addition of a header, intake, intercooler and exhaust!

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. Now we’ve upped the ante with the ALTA Performance™ Version 2.0 Supercharger Pulley with 15%, reduction.Installation is easier than ever. And results are even more fantastic.The ALTA Performance pulley features a stainless steel supercharger shaft coupler with installation site aperture and the first to offer direct torque technology. Ultra light aluminum body decreases rotational inertia and overall weight. Oversized belt retainers and belt groove teeth increase belt grip. A decorative end cap faceplate provides a clean sleek look.

BUYING A PULLEY TODAY? IF SO GET A FREE RENTAL ON OUR PULLER BY CLICKING HERE! (deposit refundable upon return. Certain restrictions apply.) 

Features:

Design

    The ALTA Performance pulley features a stainless steel superchargershaft coupler with installation site aperture.Independently attached tothe supercharger shaft ALTA is the first to offer Direct TorqueTechnology (DTT). The older design uses bolts to do the job of holdingeach piece together, and compressing the taper.  The Direct TorqueTechnology (DTT) applies all twisting force from the pulley to the hub,and uses separate bolts to secure hub to shaft. This reduces the workthe bolts have to do. Our new pulley is also designed to be completelybalanced with in .02 grams (better than stock), keeping yoursupercharger bearings happy.

   Direct Torque Technology (DTT) allow us to use two differentmaterials without having problems with different material expansionrates. Our hub is made of Stainless, and the pulley body is Aluminum.The SS hub takes most of the force, and does the biggest job ofsecuring the pulley to the shaft.  The ultra light weight 6061T6aluminum pulley body decreases rotational inertia and overall weight.Oversized belt retainers and grooved belt teeth, decrease thepossibility of belts jumping off, and increase belt grip. Cooling holesare drilled into the belt retainers to keep pulley temps in check. Adecorative end cap faceplate provides a clean sleek look.

Ease of installation

    Simply lift the engine, remove stock pulley using the ALTA Version2.0 pulley puller and slide your new ALTA Performance Version 2.0pulley directly onto the supercharger shaft, tighten bolts, and yourdone!  There is no reason to remove the entire supercharger to pull offand press on a pulley.

Some Unique Features

The DTT hub, and the way it secures to the supercharger shaft, makesfor a great replacement part for those who have had other pulleys slipand cause damage to the supercharger shaft. Our hub can help when aprevious pulley has worn the S/C shaft down as much as .020".

Since the outer pulley is held on by 3 high quality screws, and isnot responsible for holding the pulley to the supercharger shaft (likethe 2 piece taper fit), it can be replaced with a different size veryeasily. Simply remove the ALTA cap, loosen the screws, and replace! Youcould increase your power with a smaller size in a matter of minutes!

We don't use thread locker for a reason!  Many other pulleys use athread locker to ensure bolts don't back out. The problem with threadlocker is that it can create a false torque setting when tighteningbolt. And not be fun to remove.  We have incorporated lock washerswhich eliminate the need for thread locker, and allows for propertorque readings when tightening bolts.  

Included items:

• Mounting hub
• Pulley body
• 2 hub bolts
• 3 body bolts
• 5 lock washers
• Cover plate
• Instructions
• 2 stickers

OEM pulley requires special puller for proper removal.

See AMP-ENG-208 

Compatibility:

Fits ALL Cooper S Models 2002-2009 (Supercharged ONLY)

Specifications:

Chart for correct belt pulley combinations

Below are some of the many dyno runs backing up our claim of highestgaining Wheel HP intake on the Mini market.  The intake gains are verysimilar with different pulleys install, exhaust, headers and chips allgaining 10-15WHP.  The below test is a bone stock Mini S with only a15% Version 2.0 SC pulley and intake being installed. We do not have apulley only graph at this time.

 Videos:

Click on the image below to jump over to motoringfun.com and watch a great how to install video made by the guys at Wallis Motor Sports .   

 Instructions:

Download Instructions:
Right-click on the icon to the left. If you see "File Not Available", contact sales@altaminiperformance.com.
Select "Save Target (or Link) As"
You will be prompted to save your file on your hard drive. Choose a location and click the "Save" button.
Note: If you don't follow the instructions above, the file will not be saved to your hard drive.

Design

    The ALTA Performance pulley features a stainless steel supercharger shaft coupler with installation site aperture.Independently attached to the supercharger shaft ALTA is the first to offer Direct Torque Technology (DTT). The older design uses bolts to do the job of holding each piece together, and compressing the taper.  The Direct Torque Technology (DTT) applies all twisting force from the pulley to the hub, and uses separate bolts to secure hub to shaft. This reduces the work the bolts have to do. Our new pulley is also designed to be completely balanced with in .02 grams (better than stock), keeping your supercharger bearings happy.

   Direct Torque Technology (DTT) allow us to use two different materials without having problems with different material expansion rates. Our hub is made of Stainless, and the pulley body is Aluminum. The SS hub takes most of the force, and does the biggest job of securing the pulley to the shaft.  The ultra light weight 6061T6 aluminum pulley body decreases rotational inertia and overall weight. Oversized belt retainers and grooved belt teeth, decrease the possibility of belts 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.

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 bolts, and your done!  There is no reason to remove the entire supercharger to pull off and press on a pulley.

Some Unique Features

The DTT hub, and the way it secures to the supercharger shaft, makes for a great replacement part for those who have had other pulleys slip and cause damage to the supercharger shaft. Our hub can help when a previous pulley has worn the S/C shaft down as much as .020".

Since the outer pulley is held on by 3 high quality screws, and is not responsible for holding the pulley to the supercharger shaft (like the 2 piece taper fit), it can be replaced with a different size very easily. Simply remove the ALTA cap, loosen the screws, and replace! You could increase your power with a smaller size in a matter of minutes!

We don't use thread locker for a reason!  Many other pulleys use a thread locker to ensure bolts don't back out. The problem with thread locker is that it can create a false torque setting when tightening bolt. And not be fun to remove.  We have incorporated lock washers which eliminate the need for thread locker, and allows for proper torque readings when tightening bolts.  

• Mounting hub
• Pulley body
• 2 hub bolts
• 3 body bolts
• 5 lock washers
• Cover plate
• Instructions
• 2 stickers

OEM pulley requires special puller for proper removal.

See AMP-ENG-208 

BUYING A PULLEY TODAY? IF SO GET A FREE RENTAL ON OUR PULLER BY CLICKING HERE! (deposit refundable upon return. Certain restrictions apply.)

Chart for correct belt pulley combinations

Below are some of the many dyno runs backing up our claim of highest gaining Wheel HP intake on the Mini market.  The intake gains are very similar with different pulleys install, exhaust, headers and chips all gaining 10-15WHP.  The below test is a bone stock Mini S with only a 15% Version 2.0 SC pulley and intake being installed. We do not have a pulley only graph at this time.

Click on the image below to jump over to motoringfun.com and watch a great how to install video made by the guys at Wallis Motor Sports .   

 
Download Instructions:
Right-click on the icon to the left. If you see "File Not Available", contact sales@altaminiperformance.com.
Select "Save Target (or Link) As"
You will be prompted to save your file on your hard drive. Choose a location and click the "Save" button.
Note: If you don't follow the instructions above, the file will not be saved to your hard drive.