ultimatepoghero Posted July 29, 2010 Share Posted July 29, 2010 I recently bought some 420CC injectors to upgrade my 84-300ZXTurbo from the stock. I have a megasquirt efi system and wanted to now if I'm going to have to upgrade the fuel pump as well. I'm having trouble determining the math necessary and the specs on the stock pump. Quote Link to comment Share on other sites More sharing options...
jacob80 Posted July 29, 2010 Share Posted July 29, 2010 Its probably a good idea to upgrade. As far as I'm concerned, the stock pump isn't going to supply an more fuel than the stock computer requires. Quote Link to comment Share on other sites More sharing options...
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