rickyellow zee Posted April 2, 2013 Share Posted April 2, 2013 I have an aftermarket AEM fuel pressure regulator and need to know hot to set it for proper stock fuel pressure which I believe is 36 psi? My question is should it be 36 psi at 18-20 vacume? Or 36psi at zero vacume? To achieve 0 vacume do I need to remove the vacume line to the FPR to get to zero? Unsure of how to do this properly. There is too many different ways I have researched on the net( they cant be all right, conflicting info)and need to know what is the correct way to set this up. Its a 78 280Z with a stock L28ET swap. Thanks Rick Quote Link to comment Share on other sites More sharing options...
cgsheen Posted April 2, 2013 Share Posted April 2, 2013 36.3 PSI at zero vacuum. I'd suggest you jump the fuel pump to get it working without the engine spinning and set your fuel pressure. But, pulling the vacuum line off the FPR is going to get it to zero vacuum as well. Engine might run kinda funky... Quote Link to comment Share on other sites More sharing options...
rickyellow zee Posted April 2, 2013 Author Share Posted April 2, 2013 Ahh. Right now its set to 36 psi at 18-20 vacume. Does not run very well at all like this. Super rich as is. Quote Link to comment Share on other sites More sharing options...
rickyellow zee Posted April 2, 2013 Author Share Posted April 2, 2013 In the fsm it says at idle 30 psi and when pedal fully depressed 37 psi. it does not say if its for the turbo or na model though. Quote Link to comment Share on other sites More sharing options...
rickyellow zee Posted April 2, 2013 Author Share Posted April 2, 2013 Page 59 in the fsm in the ef and ec section supports your methods. At zero vac 36-37 psi fuel pressure and at 20 inHg 26-28 psi. Gonna set it to that and be done with it. Thanks. Quote Link to comment Share on other sites More sharing options...
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