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FI Fuel Pump Ratings

MECHANICAL FUEL PUMP FOR MFI Mechanical fuel injection uses a positive displacement fuel pump to load the jetting distribution system.   Proper fuel pump size and jetting is vital for good performance and good spark plug readings. In the past, Hilborn fuel pumps were rated by the manufacturer at 1,800 RPM fuel pump speed.  Enderle, […]

6,000 HP on Methanol

Our 5000 Horsepower on Methanol tech manual features specs on some very high output methanol racing engines.  A 6,000 horsepower combination is detailed on p. 132. It is based on a top fuel drag racing V-8 long block with two stage compressors.  A minimum fuel pomp size is 32 GPM at 4000 pump RPM.  Boost […]

Fuel Enrichment for Methanol Racing Engines

The enrichment for a normally aspirated racing engine on methanol is around 15% excess fuel over the stoichiometric (best burn) amount. The enrichment for a supercharged racing engine on methanol with high compression ratio wedge head is around 65% excess fuel over the stoichiometric (best burn) amount. The enrichment for a supercharged racing engine on […]