SAFC II set-up

[Rusted_PS13]

I got my car "running" but I'm gonna have to get it to Houston to get a proper ECU Q-Tune. But I'm running DSM 450CC injectors which had required me to install the resistor box; so installing my injectors once I got to Houston was out of the question. I bought an Apex'i SAFC II for cheap from one of my buddies so I can do a "temporary tune" until I have the extra cash for the proper tune. But the problem is I have no wideband.

My setup consists of :

Turbo- Greddy TD06-18G Manifold/Intercooler- Ebay, atmospheric old school HKS BOV Fuel- Project Nissan fuel rail, Sard FPR with marshall gauge, 450CC DSM low impedence injector, Honda CRX resistor box, Warlbro 255 fuel pump

Fuel pressure is also set-up at 34 psi Also running BKR7E plugs gapped at .030

I also have a Z32 Maf waiting to be put on

This is the setting I have on my SAFC right now:

Lo throttle- -40% across 1000-7600 RPM Hi throttle- -20/-21% across 1000-7600RPM

THR point- Lo 20% Hi 40%

Dec. setting- THR 2.0% Ne1 1.5% Ne2 2.5%

I believe i have the thing set at Hotwire 5 in 5 out 1in 1 out with the stock maf.

What are the "NE-Point" setting for?

With the settings I currently have it seems as if it is fouling out my spark plugs and it does smell an awful lot like fuel. Anyone have any settting i'd be able to try?

[eazye2000]

Change your DEC AIR settings back to the **** thingy's and just deal with the poor idle at a stop, or gear change. What that does is trick your ECU into thinking there is air there or less air, but isn't, yadda yadda. It is for Open Atmospheric blow off's.. I know you have one, but right now it's probably the only thing I can see in the settings that could be causing you to run kinda crappy.Try changing the Dec Air settings back to **** and see where that gets you.Keep us updated.

PS: Whatever I say, may or may not be true or work.. But it's something to keep your post bumped to where someone who know's what they are talking about can see it and give you the real help you need.

[SLde_Show_Enthusiast]

after u install the z32 maf, play with your in/out settings,

i think when i had safc, mine were 5in, 6out...the in/out settings can make ur car run like **** to0...

[dj_hype]

brah, if ur still running ur stock maf, that may be the issue. when i was rocking my stock maf my car ran rich as ****, even with huge negative corrections. switch to ur z32 maf and enjoy. trust me.

[Rusted_PS13]

the car runs fine now with the Z32 MAF and some adjustments to the SAFC. Although, after switching the plugs to BKR6E gapped at around .028, i pulled them and it was white so it seems to be running a little bit on the lean side. So, should I set my Lo throttle setting to -30% instead of -40% and work from there?

[Florida240sx]

You have 450cc injectors. For low throttle you need them ot become stock injector size which is 170cc. 270/450=.6 450x.4=180 450-180=270 So it needs to be -40% across low board. If you have your fuel psi is at stock pressure. Is it 34psi with or without vaccum?Let's put you on asay stock sr map which runs 370cc injectors being you have similiar turbo and hopefully only running 8psi until tuned with wideband. So now 370/450=.82222 450x.178=80 450-80=370 So high throttle should be -18%So if you put your fuel psi to stock. I would do this.throttle points. Low map 20% High map 60%-35% across low board for safety and -13% across high board.Should be able to get you around town without any issues.I thought factory fuel psi was 43 with vaccum correct?

[Florida240sx]

Stock mafs settign shoudl be same number 1 in 1out 5in out whichever shouldn't matterIf you go z32mafs should be 2in 5out

[Rusted_PS13]

I have my fuel PSI set at 34 PSI with vacuum, i'm gonna adjust everything today and try it out for awhile; i'll keep you guys updated, thanks!

[Florida240sx]

The bigger the gap you can run in the plugs the better....Timing at 20?

[Rusted_PS13]

I have switched back to BKR7E-11 plugs gapped at .027, i drove the car with the new SAFC setup and pulled the plugs this afternoon and it seems to be running good/decent; the plugs are a brownish white color. I'll try to get some pictures up tomorrow.

I'm not sure what my timing is set-up at, factory probably

[Florida240sx]

Those bkr7e-11 are meant to stay at .044 gap You need bkr7e which r emeant ot be gapped at user choice. Which I would start at .035 gapThe bigger the gap the better... If it sputters then gap down to .033 then .031 etc.

[Rusted_PS13]

I really don't have a problem with re-gapping the Bkr7e-11, is it bad to re-gap them?

[Rusted_PS13]

Okay, so the other day I was driving and my car suddenly died on me; i started it back up with lots of smoke, Went into the bar to meet up with some friends for a few hours and when I went to try to start it; it started fine. Like 10 minutes later it started smoking again from the exhaust.

Got it home and did a compression check, 210 across; I took the turbo and manifold off and put the stock mani on and it was fine. I checked the turbo and there was a crack near the wastegate flapper, i didn't think this would cause it to smoke horrindously so I had put it back on and it doesn't really smoke AS MUCH anymore, but i'm still working on it to see if it'll do it again. It seems like it only smokes when it warms up or get's to a certain temperature. I don't think it would be a turbo seal because of this

[Rusted_PS13]

So, I also just noticed that my car would stall when coming to a stop and also when i turn the engine off and try starting it back up again it gives me some problems like needing to feather the gas to get it started and feather the gas until the idle smooths out :/ SAFC setup maybe?

I currently have the Dec. Air as TH-1.6NE1- 1.5NE2- 2.5

Or something like that