WOT from low RPM vs high RPM

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secure
Posts: 245
Joined: Tue Apr 21, 2009 6:38 am

Re: WOT from low RPM vs high RPM

Post by secure »

stevieturbo wrote: Sun Dec 06, 2020 10:47 am
secure wrote: Sat Dec 05, 2020 8:14 pm
I need to fix oil and fuel sloshing.
Indeed you do. Although even the video shows no data relating to fuel or oil pressure.
Organge gauge to the right of the vehicle speed is OilP.
Fuel pressure was stable on the track. No hose problem.

I have already set rel1p multipler.
Image

What I meant was to fix mechanical problems first.
I'm 3D printing a fuel pump anti slosh pot right now. I have had Subaru SPEC C fuel pot which doesnt work actually
stevieturbo
Posts: 1051
Joined: Sun Dec 07, 2008 2:04 pm

Re: WOT from low RPM vs high RPM

Post by stevieturbo »

10% per 1 bar may not be enough, and your table assumes a 4 bar base pressure ? in that 4 bar is x 1.0 ...

yet your logs seem to show your base is 4.7 bar or so ?

IMO for ease of use, set the x1.0 multiplier to whatever your base relFP is, and then go up and down either side of this to maintain consistent tuning should pressure deviate.

If your base is 5 bar and your rel. pressure drops to 4 bar....it's going lean as you have not compensated for the loss in pressure.
secure
Posts: 245
Joined: Tue Apr 21, 2009 6:38 am

Re: WOT from low RPM vs high RPM

Post by secure »

No. I set the base fuel pressure down to 4.5bar.
I have used my old fuel table(good hose) vs. new fuel table(bad hose) differences. (%8)
On the new retuned map, for 2 bar pressure loss I had added %10 fuel to compensate the same air fuel ratio.(yes not too much)
So it is real world condition but I could still add a margin Thanks
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