Anyone have a idea as to how large of a electric pump I need to feed a 550 to 600Hp BBB (EFI) ??? No where close to motor work yet, but frame is nearing completion and fuel cell with in tank pump will be next, want to get it right the first time... Q's are volume and pressure requirements.
I am guessing you will use 50#/hr injectors. (I make that guess because I am around 450HP and I use 36#/hr injectors at about 75% duty cycle). 50 * 8 = 400 #/hr (because of 8 cylinders) 400 / 6 = 66 gallons/hour (because approx 6 pounds per gallon) If you are running NA (no blower or turbo), then you will want 45 PSI. If you are using (or plan to use) a different injector size, just run through the formula again and you'll have an answer. (For example a 83 #/hr injector would require 110 gallons/hour). I am assuming a worst-case scenario of 100% duty cycle on the injectors, although you should never really run above 85%-90%. -Bob Cunningham
Does it have to be an in-tank pump?? I've been looking at the Aeromotive A-1000 for some time now. Seems to be a pretty good pump. 500#/hr. at 45 psi. and claim to be good for injected engines up to 1000 hp. And it is a flow-through style pump so it should be very happy on the street. Have no idea about noise level though. Check it out at Summit...AEI-11101....$289.88. Much cheaper than similar units offered by Barry Grant. Just a thought. :TU:
No, doesn't have to be a intank - but since I am going to have a tank fabed anyway - intank pumps offer some advantages over in line. The worst part is service of course but my trunk will allow a easy access hole to remidy that. With the pump in tank, there is much less issue with noise, reliability, etc. Costs are similar so no benefit there. Some may ask why fab a tank - in my case it must be a Stainless Steel tank - as I will be running a more corrosive fuel :Brow:
Just wanted to add, I too have had good luck with the A-1000 pump. I've been using it for about 2 years now and it's still ticking as good as new. Only complate is it's a bit loud.
