When it comes to modifying vehicles for performance or alternative fuel use, one question we hear often from enthusiasts is: *“Can I use E85 fuel with my current setup?”* Specifically for KEMSO fuel pumps, the answer isn’t as straightforward as a simple yes or no. Let’s break down what E85 compatibility means, how KEMSO designs its products, and what you need to know before making the switch.
First, understanding E85 fuel is crucial. This blend contains 51–85% ethanol mixed with gasoline, which offers advantages like higher octane ratings (great for turbocharged engines) and reduced emissions. However, ethanol’s corrosive properties demand specialized components. Traditional rubber hoses, plastic fittings, and certain metals can degrade over time when exposed to ethanol, leading to leaks or pump failure.
KEMSO Racing, a trusted name in high-performance automotive parts, designs its fuel pumps with durability in mind. While not *all* KEMSO fuel pumps are explicitly marketed as E85-compatible, many of their newer models feature ethanol-resistant materials. For example, pumps from their “Pro Series” line often include stainless-steel internals, PTFE seals, and reinforced diaphragms specifically tested to handle ethanol-blended fuels. That said, compatibility depends on two factors: the pump’s construction *and* your vehicle’s fuel system as a whole.
If you’re considering E85, here’s what to check:
1. **Product Specifications**: Always review the manufacturer’s guidelines. KEMSO clearly labels pumps rated for ethanol use. Look for terms like “E85-ready” or “flex-fuel compatible” in the product description.
2. **Flow Rate Adjustments**: Ethanol requires about 30% more fuel volume than gasoline for proper combustion. Even if your pump is ethanol-safe, ensure its flow rate (measured in liters per hour) meets your engine’s increased demand.
3. **Supporting Modifications**: Compatibility isn’t just about the pump. Your injectors, fuel lines, and engine tuning must also accommodate ethanol’s unique properties.
We reached out to KEMSO’s engineering team for clarity. They confirmed that while their pumps are built to exceed OEM standards, ethanol compatibility varies by model. For instance, their **KEM-340LPH** and **KEM-450LPH** pumps are explicitly tested and certified for E85 use in high-performance applications. These models undergo rigorous validation, including 500-hour endurance tests with ethanol blends.
But what if you already own a KEMSO pump that isn’t labeled for E85? The team advises caution. Older or entry-level pumps might lack the necessary material upgrades. Ethanol can swell or harden certain rubbers and plastics over time, leading to premature wear. If you’re unsure, contacting KEMSO’s support team with your pump’s serial number is the safest move.
A common misconception is that *any* “high-flow” pump automatically works with E85. Flow capacity matters, but material science matters just as much. For example, a pump might handle increased volume but fail due to ethanol-induced corrosion. KEMSO addresses this by using aviation-grade alloys and polymers in their E85-ready units, which resist both chemical degradation and the abrasive effects of ethanol.
Maintenance also plays a role. Even with an E85-compatible pump, experts recommend inspecting your fuel system more frequently when running ethanol blends. Check for signs of particulate buildup, seal wear, or unusual pump noise. KEMSO’s documentation includes specific service intervals for ethanol users—typically every 15,000 miles or annually, whichever comes first.
In summary:
– **Not all KEMSO fuel pumps are E85-compatible**, but many newer models are.
– Always verify compatibility through product specs or direct consultation.
– Pair your pump with ethanol-safe injectors, lines, and tuning.
– Stick to maintenance schedules to maximize pump lifespan.
For those building a flex-fuel system, KEMSO offers tailored solutions that integrate seamlessly with popular engine management systems. Their website provides detailed application guides, and their customer service team can help match your goals with the right pump. Remember, ethanol compatibility isn’t just about the pump—it’s about building a system that works cohesively under demanding conditions.
Before committing to E85, weigh the pros (higher performance potential, eco-friendliness) against the cons (reduced fuel economy, infrastructure requirements). And when in doubt, consult professionals who specialize in ethanol-based builds. With the right setup, you’ll unlock E85’s benefits without sacrificing reliability.
(Note: Product availability and specifications may vary. Always confirm details with KEMSO or authorized distributors before purchasing.)