Archives: Fuel Injection Racing Secrets 2nd edition

Posts related to our book, Fuel Injection Racing Secrets.

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, […]

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 […]