Guest Anonymous Posted May 30, 2002 Share Posted May 30, 2002 I have a LT1 with an ATI Procharger (stock motor), gonna run 8psi on it and need to know what size injectors to run (Im using the stock ECU settings with a FMU and a stock LT1 fuel pump and an inline pump to help out) I should be putting out around 400-500BHP with this setup, any suggestions to the injector sizing? I've been told to use 26# RC Engineering, 30# Ford SVO, and 36# Accel injectors so far and am a bit confused as to what i need to run to stay safe (this is my daily driver if ya know what I mean) btw...this is a 96 Camaro Z28 im talkin about here and my buddy with a 280ZXT told me you guys could help out, thanx Quote Link to comment Share on other sites More sharing options...
Lockjaw Posted May 31, 2002 Share Posted May 31, 2002 Just a rough estimate, you need 250 lbs of fuel perhour to support 500 hp. Divide 250 by 8 and you get 31 LB per hour injectors, at 100 percent duty cycle. The 36 lb per hour should be fine without the FMU, and you need a pump that can do 50 gallons per hour to supply the engine, approx. If you are going to use the FMU, you need a pump that can supply the 50 gallons at higher pressures than normal. At 8 psi the fuel pressure will probably be in the 80 to 90 psi range with the FMU. Did ATI not give you any info on proper injectors? I would think they would have some info. I would also think you will have to have some sort of ecu mod to control a larger injector. Hope this helps, GM stuff is getting out of my realm. Good luck, and if you get to Bham, I would like to go for a ride to see what 500 HP is all about. Quote Link to comment Share on other sites More sharing options...
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