FMU Ratio
10-04-2007, 06:33 PM
#7
5th Gear Member
Join Date: Apr 2006
Posts: 3,625
RE: FMU Ratio
ORIGINAL: 96gtchinook
would 42# injectors work and what size fuel pump ?/gph
would 42# injectors work and what size fuel pump ?/gph
10-04-2007, 07:00 PM
#9
5th Gear Member
Join Date: Nov 2005
Location: MN
Posts: 4,412
RE: FMU Ratio
I have a holley 255lph fuel pump. I also went with 42lbs injectors and 90mm MAS. It's a pretty common set up. You probably don't need all the way up to 42lbs but it puts a safety blanket in it. Oh and switching to a returnless fuel system is just crazy talk, just crazy talk I tells ya.[8D]
10-04-2007, 11:12 PM
#10
6th Gear Member
Join Date: Jan 2004
Location: United States
Posts: 12,575
RE: FMU Ratio
ORIGINAL: 97targa
Here's a tip....A 1lb injector will support up to 16hp. so 42lb injectors will support 672hp. 30lb injectors will handle about 480hp. I think that's more of what you need. Also a 255lph fuel pump is plenty for that. If you upgrade to a returnless I wouls reccomend the Aviator pump, but again that must be used on a returnless fuel system!
ORIGINAL: 96gtchinook
would 42# injectors work and what size fuel pump ?/gph
would 42# injectors work and what size fuel pump ?/gph
You can't simply max out the duty cycle of an injector, the coil will heatup and then melt, and the injector will stop working.