Supercharger Pulley Belt
For OEM 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
RPMs 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!
