im helping a friend build a high pressure stand alown fuel system for his car (stage 1: 50 fogger stage 2: 150 direct port) hes going with a external inline pump, what lph is required at this level to keep up with the nitrous system?
stand alown fuel system lph flow
im helping a friend build a high pressure stand alown fuel system for his car (stage 1: 50 fogger stage 2: 150 direct port) hes going with a external inline pump, what lph is required at this level to keep up with the nitrous system?
any buddy?
would 120 lph be enough? or should he just get a 255 lph?
how about just a walbro 255, so there's no guessing.
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Why are you building it high pressure? Better atomization of fuel?
I'm getting ready to build a stand alone setup for my truck and looking for ideas. Also trying to decide between high and low(7 psi) pressure.
Big slow mud truck with a TUNE!!!!!!
Better atomization and filling the fuel lines faster
yea a 255 lph would be the smart move but i cant see it needing all that flow, at 50 psi (fuel) each direct port fogger will (or should vea jet caculator) have a .011 fuel jet. so all .011x8=.088--------.088+.018 (stage 1 fogger)=.124 total hole size that needs to be maintained @ 50 psi. dose anyone know the math formula for hole size x psi = lph or something like that?
No need for a high lph pump. You would be better off running a low pressure system (7-10psi) with the smaller jets on the DP system. The small jets that are needed for a high pressure DP system will clog easier. The DP with a low pressure system uses a lot bigger jet for fuel. Atomization is fine with low pressure system..
jet calculator says @ 8psi the direct port would take .017 and the single fogger would be .029. its a great point that i didn't even consider about clogging, would a std. in-tank fuel pump sock prevent clogging on a high psi system?
How is your fuel system set up?Originally Posted by DBRODS
Would the low pressure system work good with my 78mm plate kit?
Big slow mud truck with a TUNE!!!!!!
after doing more research, DBRODS is 100% correct about a low psi system is the way to go. thanks man, any more helpful hints?
Low psi at that low power levels gives u lots of options.
As far as tuning goes. Hi psi small hp levels are much harder to dial in. Your limited to only moving pressure because a jet change might not be doable or available.
Fuel psi on a good nitrous system has nothing to do the atomization. Nitrous slamming into the dual stream does all the work.
Line size a -6 is plenty to feed the fuel noida with.
Get a good pump and regulator use a relay on the pump.
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