Search found 241 matches

by secure
Sun Dec 06, 2020 11:05 pm
Forum: Subaru
Topic: WOT from low RPM vs high RPM
Replies: 22
Views: 1603

Re: WOT from low RPM vs high RPM

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 c...
by secure
Sun Dec 06, 2020 7:41 pm
Forum: Subaru
Topic: WOT from low RPM vs high RPM
Replies: 22
Views: 1603

Re: WOT from low RPM vs high RPM

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. https://i.hizliresim.com/i...
by secure
Sat Dec 05, 2020 8:14 pm
Forum: Subaru
Topic: WOT from low RPM vs high RPM
Replies: 22
Views: 1603

Re: WOT from low RPM vs high RPM

https://youtu.be/bs9IJrXZYLk?t=133 Watchout oil pressure > 2:13 and oil trip in action. I've experienced this in the past. Normally all my trips were on. But on the track its almost impossible to go without having fuel slosh or oil starvation for my car(setup). Injector duty is %99 so really nothing...
by secure
Fri Dec 04, 2020 5:50 pm
Forum: Subaru
Topic: WOT from low RPM vs high RPM
Replies: 22
Views: 1603

Re: WOT from low RPM vs high RPM

https://i.hizliresim.com/YClbI8.jpg Here is the fix. Changed the blue hose and the fuel pressure drop at 1.0bar @boost is 3 psi now. It went too rich. I need to restore my fueling table back. Actually I should have never touch the fueling table before diagnosing. anyway always trust your gut feelin...
by secure
Tue Dec 01, 2020 8:05 pm
Forum: Subaru
Topic: WOT from low RPM vs high RPM
Replies: 22
Views: 1603

Re: WOT from low RPM vs high RPM

I have had both visual or audible warnings in Realdash/Syvecs but fuel sloshing on the track made it annoying so closed that warnings. Fuel pump is Walbro 460 hardwired(12awg) with custom fuel filter. It could be aeromotive diaphram because its been almost ten years and lately the engine sometimes d...
by secure
Tue Dec 01, 2020 1:35 am
Forum: Subaru
Topic: WOT from low RPM vs high RPM
Replies: 22
Views: 1603

Re: WOT from low RPM vs high RPM

Holy crap...your relative fuel pressure in that AFR log goes from 4.9bar base down to 3.1 bar under load. Log FP1. Good catch. Why I couldn't see it even I'm looking at it. :x On January 2020 logs show 1.7 Bar boost - relfp 4.4bar to 3.9bar December 2020 logs 1.2 bar boost - relfp 4.9bar to 2.8 bar...
by secure
Tue Dec 01, 2020 12:01 am
Forum: Subaru
Topic: WOT from low RPM vs high RPM
Replies: 22
Views: 1603

Re: WOT from low RPM vs high RPM

https://i.hizliresim.com/B66Afk.png https://i.hizliresim.com/1hI0WO.png I am logging around 15 fueling parameters all seems stable.(except vbat) I recently changed the injector opening time vbat versus relfp (from ID1000s datasheet) Interestingly, there seems to be a relation with fuelbase vs. relf...
by secure
Sun Nov 29, 2020 10:25 pm
Forum: Subaru
Topic: WOT from low RPM vs high RPM
Replies: 22
Views: 1603

Re: WOT from low RPM vs high RPM

Why do you think you have alternator problems ? Seems fairly steady to me ? And what does "felt some oddness" mean ? Certainly a misfire will cause erratic readings, although the rpm trace looks super smooth Not really following the query though ? And although AFR is a little uneven...don't think i...
by secure
Sun Nov 22, 2020 9:48 pm
Forum: Subaru
Topic: WOT from low RPM vs high RPM
Replies: 22
Views: 1603

Re: WOT from low RPM vs high RPM

Do you use boost compensation per gear? I actually couldn't find a good log to show. I stopped my last tuning session as I felt some oddness. My AFR is lumpy, jumping 12.3 to 12.7s at WOTs. Logged datas seems fine to me. I decided to flow test my injectors but they turn with good result. https://i.h...
by secure
Sat Nov 21, 2020 9:39 pm
Forum: Subaru
Topic: WOT from low RPM vs high RPM
Replies: 22
Views: 1603

WOT from low RPM vs high RPM

Why fueling differs throttling from low rpm vs high rpm?
I mean engine keeps lean if I WOT from say 2300 rpm to 7000 rpm(14.0 to 12.2)
but keeps rich if I wot from 3700 to 7000 rpm.(12.5 to 11.5)

How do I compensate it?