Increased Fuel Pressure

Nov 2, 2010 update on MacLotus's 1999 Lotus Elise Sport 190 (Series 1)

Because the new Acura K24 engine requires higher fuel pressure than the Rover VHPD did, I needed to replace the fuel pump.

I dropped the OE Lotus 8 gallon fuel cell and removed the OE in-tank pump (approx 40 psi). I replaced it with a new custom-built pump designed to operate around 55 psi.

The increased fuel pressure will serve to better atomize the fuel spray from the injectors.

 

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