06S2k07Si

What riceball said... I started with the AEM 320E85 pump and now have the Walbro 450...should have done that from the start. I'll be swapping to ID1300's shortly too.

nMeOnE

I am in the same scenario with my ID1000 and Walbro 485.

SOS SC with 3" belt making 15.5-16 psi
ID 1000
Walbro 485
AEM FPR with base pressure of 45 psi.

Car is a 08 with AEM EMS V2 and running E85 and a SOS return fuel system

Currently after 7500 RPM. I am running out of fuel with injector duty cycle around 90% and after 8000 rpm i am seeing 100% duty cycle.

Either A i get some 1300 or just up my fuel pressure to 60-65 psi which would rate my ID for 1200-1250 cc which is good for what i'm after. I just can't justify going 1300cc with the price increase especially for my application. For the turbo guys it would make more sense.

With my case it is a SC application and would only require that fuel after 7500 RPM.

I will report back once I get my map adjusted for my extra fuel pressure.

E85 is great also! helps with the black soot on the bumper and smells a lot better then pump gas that is for sure.

honda85

On ID1700 what base pressure are you running them on without random misfiring? Im working with 50psi base and my deadtime is 3.05, 1.83, 1.32, 1.02, .83.

hatrickstu

Well why is it misfiring? Too much fuel? Lower the base pressure is the first step. The lower the total fuel mass being injected the better if you are fighting a rich condition.