
Professional Racing Fuel M1+
Application of M1+ Fuel
Where is M1+ fuel used?
M1+ is used in specialized types of transport where the following are important:
- High knock resistance (octane number ~110-123 RON)
- Cooling effect (evaporating, it lowers the intake temperature)
- Low cost (compared to racing gasolines)
Main areas of application:
🔹 Auto racing:
- Drag racing (Top Alcohol Dragster, Funny Car)
- Circuit racing (IndyCar until 2006, some NASCAR classes)
- Rally (Group B in the 1980s)
🔹 Motorcycle racing:
- Drag bikes
- Racing snowmobiles
🔹 Special equipment:
- Racing boats
- Experimental vehicles
Required compression ratio
Engine Type Optimal Compression Ratio Notes | ||
Naturally Aspirated | 14:1 - 16:1 | Maximum efficiency |
Turbocharged | 9:1 - 12:1 | With boost 2.5-4.0 bar |
With mechanical supercharger | 8:1 - 10:1 | Boost up to 5 bar |
Feature:
M1+ allows the use of higher compression ratios than gasoline, thanks to:
- High octane number
- Cooling effect of evaporation
Required engine modifications
🔧 1. Fuel system
Component Requirements Reason | ||
Fuel tank | Stainless steel/aluminum | M1+ is corrosive |
Hoses | Viton/PTFE | It eats through rubber |
Injectors | +30-50% capacity | M1+ requires a larger volume |
Pump | High-performance | Energy density is 50% lower |
🔧 2. Ignition system
- Spark plugs: Cold (1-2 steps colder)
- Coils: High-power
- Ignition timing: +5-10° (M1+ burns slower)
🔧 3. Engine
Element Modification | |
Pistons | Forged, with anti-friction coating |
Valves | Reinforced, with sodium cooling |
Head gaskets | Multi-layer steel |
Lubrication system | Special oils (not miscible with M1+) |
🔧 4. Additional systems
- Fuel heating (for cold starts)
- Drainage system (M1+ is hygroscopic)
- Fire safety (invisible flame!)
Advantages and disadvantages
✅ Advantages:
- Power +10-15%
- Cheaper than racing gasoline
- Less carbon deposits in the engine
🚫 Disadvantages:
- Consumption 2-2.5 times higher (low energy density)
- Toxicity (requires special safety measures)
- Difficult cold starts (worse evaporability than gasoline)
Conclusion
M1+ fuel is a fuel for professionals, requiring:
- Complete engine redesign
- Special maintenance
- Strict safety measures
Ideal for:
- Drag racing
- Racing boats
- Experimental projects