The performance trio of Val Simmons of Simmons Flexi-Skis, Steve Benson who is famous for ATS Turbo Systems and Hymark performance, along with extreme back country legend and turbo guru, Brad Story have teamed up to produce propane-powered turbo kits for performance-minded enthusiasts. Their new company is called HP3. They produce a conversion kit for the Yamaha Apex, with other models in the works.

HP3 conversions are get-on-and-ride kits. Bring your sled to HP3 and they make the conversion including custom seat and propane tanks, head shims, specially built head studs, advanced timing key, all clutching, special driver wheels, inter cooler, dual blow-off valves, and a CNC billet intake system. You pick up the sled and ride.

Propane has an octane rating of 111 but burns as if it were 120. It enters the combustion chamber as a vapor, resulting in an extremely clean burn. With the HP3 propane system, jetting automatically adjusts to elevation changes. The twelve-gallon propane tanks provide 75-90 miles of hard riding at a price of about $2.00 per gallon.

HP3 uses a Mitsubishi dual-scroll high performance turbo with custom-built manifold. It maximizes throttle response and top end performance. “You have never felt a sled with this kind of power and it is always consistent,” said one test rider.

The HP3 turbo kits have undergone extensive back-country testing in a broad range of conditions. They maximize horsepower and provide consistent performance. Matched with the Simmons Gen II flexi-ski, they provide a whole new riding experience for even the most experienced high-performance rider.

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