Our Stage I kit is shipping at 75+ Wheel Horsepower at 6
pounds of boost. The supercharger kit is capable of 15+ pounds of boost,
motor and drive train upgrades are required. The RZR boasts a consumer
friendly bolt-on solution
than doubles your power. We recommend using Premium Gas, 92+ Octane. The
Stock RZR has about 35 Rear Wheel Horsepower & 43 on the S model.
desiring more power, numbers in excess of 100 RWHP our Stage II motor
(with cap screw rods, forged 1 piece crank & valve train) is coming
(then Stage III). Kit Includes MPI's GEMS (Global Engine Management
Controller. This kit is fully compatible with the DynaTek Ignition
well as our custom RZR ECU reprogramming.
was designed by a team of experienced engineers with 4 specific goals
Install - Minimum cutting and no fabricating. Consumer installs
pre-assembled sub systems. Typical 4-6hr install plus clutch changes
HP - Build on the reliability of the Polaris motor. Plus
the inherent weaknesses.
Throttle Response - MPI knows this is required for an A+ fun factor.
Performance - The system must not require "tinkering" to make it
met and exceeded our design goals in all aspects. Each of the key
mentioned have met the requirements of the most discriminating
- C15-60 Rotrex
- Stainless Exhaust
and Replaces the OE Exhaust.
- Reliable no-slip cog belt
- Billet Bracketry
- High volume high
bar and plate intercooler
- Plug and Play Electronic
Recommendations & Notes:
- Gauges are not required, but recommended for Extreme Application. We
- Heavier Primary Weights
- Due to an Inconsistency in Polaris Engine Manufacturing, we are
that all units running on pump gas check the piston ring end gap. Most
OK, but we have seen several units with less than 0.010" of end gap. We
recommend opening this gap to 0.020 to 0.024"
- Are Superchargers and Turbochargers equal in efficiency?
A.- Yes and No, some superchargers are
inefficient. Ours has better or equal efficiency when it is compared to
turbo (depending on the turbo). Old
fashion centrifugal superchargers suffer efficiency loss due to their
size and inefficient design. When a CVT clutch is used (like the RZR),
efficiency is actually higher on our supercharger than the turbo. This
studied in depth and well documented by Audi.
- Does a Supercharger Have Lag?
A - NO! None what so ever. Turbos have Lag, because it takes time
exhaust to spool up the turbo. A Supercharge, being driven directly by
Motor, has Zero lag time. In fact, a Supercharger has anti-lag. It is
times MORE responsive than any normally aspirated motor. When you are
to think of the most powerful internal combustion engine you can, a Top
Dragster should pop into your mind. They produce over 8000HP. They also
blowers...all of them. This instantaneous response can be a significant
advantage for someone that is on and off the throttle.
- Do I have to hack holes in my RZR to install a MPI blower?
A - NO! There are no holes added with the exception of 3/16"
rivet holes and a return hose bung is added to the fuel tank. Every
the kit mounts in stock holes.
- Can a novice install this kit?
A - Yes! Although this is a fairly complex product, installation
snap. If you can install a set of pipes, you can install our blower
Typical FIRST TIME install times are about 8 to 10 hours and
installers run around 4-6 hours. These time estimates to not allow
clutching modifications, but are typically 1/2 to 1 hour.
- Will I have problems fuel mixture and clutching this kit?
A - NO! Since the boost is instantaneous, there is nothing funny
going on with the fuel. We simply add a metered increase in fuel
a direct relation to the boost. There is actually less variation in
air/fuel ratio than a stock RZR.
- What clutching changes do I have to make?
A - For optimum
performance we recommend heavier primary weights. Our setup has been
tested from 2500 to
10,000 feet. In Sand, Dirt and on Pavement. There are additional
products available that will help even
more, but with this kind of HP and throttle response clutching gets
not harder. Just throw a lot of weight at it.
- What kind of durability does the supercharger itself have?
A - There are almost no failures with these units in there 5
history (over 7500 units). It has been used on motorcycles and
versions with identical designs are used by OEMs on cars. This unit
actually packs a warranty that is not
voided with off-road use. Off-road applications have a 1 year plus
The entire kit carries a 1 year manufacturers warranty against
- How can this kit produce more horsepower and be more reliable than
A - Simple, contrary to popular belief, turbos are NOT free
horsepower. If you don't believe this, just take off your turbo's
setup the fuel system to stock and go drive the vehicle with the
turbo still in the
exhaust pipe. We have dyno tested this exact scenario for both
blowers. Turbos do not take less power to drive than our blowers,
required 14 psi to match the HP we made at 10 psi. It is not our
intent to bag on turbos,
it is just that they are out of date, unreliable for usage on gas
melt stuff and have been replaced by superchargers on nearly all US
automobiles. There is a lot more to a forced air system efficiency
air compressor itself. Compressor sizing (and turbo sizing) play a
On a turbo, exhaust design is key. Just how much you compromise it
all this stuff in a vehicle is the measure of the engineering
- Do I have to run Race Fuel?
NO! pump premium at
6 PSI is perfectly acceptable.