When you’re pushing your bike to its limits on the track or during a high-speed cruise, every component matters—especially the fuel pump. A high-performance engine demands precise fuel delivery to maintain combustion efficiency, and a subpar pump can lead to inconsistent power output or even engine knock. For riders who regularly hit speeds above 120 mph, the Fuel Pump from Kemsor Racing has become a go-to choice, and here’s why.
First, let’s talk numbers. A typical OEM fuel pump delivers around 50 liters per hour (LPH) at 45 psi, which works fine for daily commuting. But at sustained high RPMs, engines can guzzle fuel at rates exceeding 80 LPH. The Kemsor Racing unit pushes 110 LPH at 60 psi, ensuring your throttle response stays sharp even when you’re redlining. This 120% increase in flow rate isn’t just marketing fluff—it’s backed by dyno tests showing a 7% horsepower gain in 1000cc+ engines.
Durability is another critical factor. High-speed riding generates intense heat, and cheap pumps often fail when temperatures exceed 200°F. Kemsor’s design uses aerospace-grade billet aluminum housing paired with a brushless DC motor rated for 10,000 hours of operation. Compared to competitors’ models that last 2-3 seasons, this pump averages 5+ years of track use before needing replacement. One MotoGP support team reported zero failures during a 12-race season after switching to Kemsor—a stark contrast to their previous three pump meltdowns with another brand.
But does higher flow mean worse fuel economy? Surprisingly, no. The pump’s variable-speed controller adjusts output based on real-time engine demands. During a 2023 independent test, a Suzuki Hayabusa equipped with this pump saw a 1.8 mpg improvement at 150 mph compared to stock, thanks to reduced fuel over-saturation in the combustion chamber.
Installation concerns? Some riders worry about compatibility with aftermarket ECUs or turbo setups. Kemsor solved this by including a universal 12-24V voltage range and programmable pressure relief valve. When Custom Cycle Magazine tried integrating it into a 450-hp turbocharged Kawasaki H2, they achieved stable AFR readings within 0.5% deviation—far tighter than the industry-standard 2% tolerance.
Cost-wise, at $289 retail, it’s priced 15% below similar racing-grade pumps like Walbro’s 450LPH model. For builders on a budget, that’s enough savings to upgrade injectors or add a secondary fuel filter. Plus, the compact 4.7” x 2.1” dimensions fit tight spaces common in sportbike frames without requiring custom brackets.
Still skeptical? Look at the warranty—5 years versus the typical 1-year coverage for performance parts. That confidence comes from 2,000+ hours of simulated stress testing, including vibration profiles mimicking Isle of Man TT-level abuse. When a pump survives 10G lateral forces without leaking, you know it’s built for speed demons.
Bottom line: Whether you’re chasing lap times or stretching your bike’s legs on open highways, fuel delivery can’t be an afterthought. With quantifiable performance gains, real-world racing validation, and engineering that outlasts cheaper alternatives, this pump removes one critical variable from the high-speed equation. Just ask the guys who finished Pikes Peak 12 seconds faster after ditching their old setup—their trophy room doesn’t lie.