MSV Racing “phi” High-Volume H₂O Impeller – Suzuki RMZ250
Cooler Temps. More Flow. More Winning.
If you’re serious about squeezing every ounce of power out of your Suzuki RMZ250, cooling is non-negotiable. The MSV Racing “phi” High-Volume Water Pump Impeller delivers a proven solution to heat soak — with flow-tested results and cutting-edge design that outperforms anything else on the market.
Why Cooling Matters for the RMZ250
There are only three ways to reduce engine temps — and two of them don’t work for the RMZ:
1️⃣ Larger Radiators? Not possible. Radiator space is maxed out inside RMZ250 shrouds.
2️⃣ Cooler Airflow? You’re at the mercy of outside temps.
3️⃣ Increased Coolant Flow? That’s where MSV Racing comes in.
Engineered with the Golden Ratio – “phi” Design
The MSV Racing RMZ250 Impeller features advanced “phi” vane geometry — computer-designed using Golden Ratio proportions to match the internal flow characteristics of the RMZ water pump housing. Combined with tighter impeller-to-housing clearances, this design:
- Delivers +3.0 GPM average coolant flow increase
- Reduces cycle time between engine & radiators
- Drops head and coolant temps by up to 18°F
- Helps prevent heat soak, detonation, and power loss
Performance-Built Features:
- “phi” Vane Geometry = Optimal hydrodynamic flow
- CNC-machined for exact tolerances
- Comes with a high-strength button-head impeller fastener
- Designed for GNCC, MX, single track, sand dunes, or aggressive play riding
- Built to help your engine stay cooler, rev longer, and finish stronger
Why It Matters:
Horsepower = Heat.
Your RMZ250’s cooling system is the bottleneck. When temps rise, performance drops. By increasing coolant flow, the MSV Racing “phi” impeller keeps your cylinder head and combustion chamber running cooler — unlocking maximum engine performance, longer reliability, and more consistent power when it counts.
Join the RMZ Riders Who Know:
“Dropped my temps, improved throttle response, and made the bike more consistent over long motos. It’s a no-brainer upgrade.”
— Verified GNCC Racer
What’s Included:
- MSV Racing CNC Billet RMZ250 “phi” High-Flow Impeller
- Button-head fastener for secure installation
- Track-tested results and race-grade quality
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