Guest 280Tom'z Posted October 8, 2002 Share Posted October 8, 2002 just got my new Z thanks to the guys here at HYBRIDZ. its a 76' with the 28lbs EFI fuel pump and no regulator i know i need one how big,what size,etc. and run a line from the fuel line to the return line with a T in it going to the carbs with a reg on it, RIGHT???. I plan on sending these SU's to Rebello to get them to flow more but til then is there any tuning i can do to them. Quote Link to comment Share on other sites More sharing options...
DCZ Posted October 16, 2002 Share Posted October 16, 2002 Those SUs need a fuel pressure of 3 to 4 psi max. I'm not sure of the plumbing details but I think you run the return from the high pressure side of the regulator back to the tank - someone correct me if I'm wrong Clean up the carbs, set your floats at 9/16 inch from the float bowl cover, get some SM needles from ZTherapy, adjust your airflow/mixture and you should be set. I would not pay big $$ to Rebello to modify your carbs until you are sure they are a limiting factor, and on a stock engine they are unlikely to be the limiting factor. Also - do you have a cutoff switch for the electric fuel pump? Get either a pressure activated or inertia switch to cut the pump off in the event of a crash. Don't want to get crispy!! Quote Link to comment Share on other sites More sharing options...
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