Jump to content
SAU Community

Recommended Posts

Hi. Would like to know if i disconnect my battery will this affect my safc settings at all. Cheers. By the way it is the safc2.

Yeh i had my battery disconected just the other day and went "shit, does it keep settings" yes, yes it does.

I'm getting mine dyno tuned this week actually I only have one question about the SAFCII.... Is there a setting to switch between general driving and performance mode, like Hi and Lo settings on boost controllers. Coz i run my standard 7psi 90% of the time and up the boost here and there... Thats when i want the extra fuel to be pumping in and the SAFCII to play its part!

Also anyone who has had their SAFCII dyno tuned, any figures of kw gain you might wana throw this way :rofl:?

Link to comment
https://www.sau.com.au/forums/topic/50543-safc-2-question/#findComment-1003306
Share on other sites

Yeh i had my battery disconected just the other day and went "shit, does it keep settings" yes, yes it does.

I'm getting mine dyno tuned this week actually I only have one question about the SAFCII.... Is there a setting to switch between general driving and performance mode, like Hi and Lo settings on boost controllers.  Coz i run my standard 7psi 90% of the time and up the boost here and there... Thats when i want the extra fuel to be pumping in and the SAFCII to play its part!

Also anyone who has had their SAFCII dyno tuned, any figures of kw gain you might wana throw this way :rant:?

Hi geno8r, firstly I have never used an SAFC to add fuel, the standard ECU always overfuels. So you tune the SAFC to remove fuel to increase power.

Secondly, the ECU knows how much boost via the map sensor, it knows how much throttle via the throttle angle sensor, it knows how much airflow via the AFM etc etc. So when you run low boost the ECU handles the different fuel; requirements. The SAFC has very little to do with it.

Thirdly, the later SAFC11's have 2 steps in their programming for different throttle angles. So you can modify the AFM signals at up to say 70% throttle differently to what you can at 100% throttle. This is great for improving fuel economy up to 70% throttle and then increasing power over that.

I have posted a good summary on how SAFC's work, do a search it is worth a read.

Hope that helps :cheers:

Link to comment
https://www.sau.com.au/forums/topic/50543-safc-2-question/#findComment-1004447
Share on other sites

... the ECU knows how much boost via the map sensor....

I don't think so, not on a R33 anyway. While I think a R33 has a MAP, it is connected directly to the boost gauge and not the ECU. It doesn't show on a schematic of ECU, and isn't one of the values you get from consult port (where TPS and AFM etc are). The ECU uses the AFM for things like boost cut.

Link to comment
https://www.sau.com.au/forums/topic/50543-safc-2-question/#findComment-1004478
Share on other sites

Ahhh Cheers Sydney kid.

Yeh well im not actually tuning the thing but I'll pass that the info on to the tuner....

I like it how it has 2 different settings. I duno if it'll be worth getting both tuned or just the one for max power and the other just stock. I'll probably just have the SAFCII on stock most the time and put it on the tuned data file when i know I'll be booting.

Link to comment
https://www.sau.com.au/forums/topic/50543-safc-2-question/#findComment-1005095
Share on other sites

Geno8r. In reguards to dyno tuning and gains i will answer this one. I had my safc installed and tuned on tuesday and let me just say OMFG. Power gains or what. A nice 29kw increase. And as Sydneykid said which was right on the money the thing was over fuelling its titties off. The tuner said he had to lean it of all the way through the rev range and now the power is so sweet all the way through and no more bloody flat spot. To sum it up i would have to say if you are not going to go crazy in the way of mods and just want some boost and a nice power delivery the safc for me anyway was worth every penny. 400 to buy unit and 250 to install and tune.

Link to comment
https://www.sau.com.au/forums/topic/50543-safc-2-question/#findComment-1006664
Share on other sites

safcII is a good little device... with an safcII, a 3" cat back, avcr (@ 9psi) and a fmic my car made 180rwkw... if you plan to keep your car only lightly modded then the safc is great... if you are planning more major upgrades then get a powerfc... that's what i'm going to do...

Link to comment
https://www.sau.com.au/forums/topic/50543-safc-2-question/#findComment-1010744
Share on other sites

  • 4 weeks later...
Guest Robo's
can i install it and drive to get it tuned? does it run standard maps until its modified? or will it **** with the standard settings and will i blow the thing up if i drive it?

Yes, it will run exactly the same as without. Its not until you add (+) or subtract (-) fuel out of it that it will run differently.

Link to comment
https://www.sau.com.au/forums/topic/50543-safc-2-question/#findComment-1037891
Share on other sites

Create an account or sign in to comment

You need to be a member in order to leave a comment

Create an account

Sign up for a new account in our community. It's easy!

Register a new account

Sign in

Already have an account? Sign in here.

Sign In Now


  • Similar Content

  • Latest Posts

    • I haven’t taken them out of the cases yet    inside the box is this packaging which is pretty much like a massive blister pack 
    • Purchased a NC MX5 a while ago Basic suspension mods done, BC coils and Whiteline sway bars  New DBA calipers, discs and pads Added some 17 x 8 Konig Decagrams with 215/45 17 PS5's Added some typical NA bolt on's, i.e. full exhaust and intake  Added 0.5ltrs with a MZR2.5 swap, nice bump in torques  Found a detachable hard top which is locked in for a colour match with my local paint shop in Feb 25, this also includes some PDR as it has received a few love taps from parking in the local shops when in the hands of my Minister for War and Finances, me, I park nowhere near other cars and typically park on the street The little thing is awesome, I drive it everywhere, it handles like a dream whether I'm up it or just cruising  But now,  because I'm a idiot, I keep looking at turbo kits....... did I mention I'm a idiot Why is dose so appealing  All of the NA 2.5 glory, well.......until sometime in 2025 anyway....🤪  
    • I would not be surprised if you are the only person on earth that has the interest/desire to do that lol.  The Haltech base map is a really good starting point, the car will fire easily and drive very well, even on mild boost levels. To me, following your advice sounds like some sort of ancient Chinese water torcher lol (this is not an insult Josh, never change <3)
    • Those car show concepts from the 2000's and 2010's like the Floria and IDx were brilliant and should've gone ahead, at least one of them. But neither Honda nor Nissan are thinking about affordable performance any more, which is truly sad.  Even if Toyota's liquid hydrogen ICE development reaches the point where it's commercially viable and the infrastructure to support it, Honda/Nissan would have to wait until Toyota allow fee access to their patents to offer it with any smaller performance models they released to take advantage of it.  
    • A sporty manual RWD coupe with a IL4 Honda engine would only be a good thing I assume we won't see anything released for a few years though, unless informal talks and designs have been going on for a few years,  and due to the current, and future, emmisions and safety requirements, I assume anything "sporty" they would do would be at least some hybrid thingie And hopefully anything they are thinking of has nice lines, without lots of plastic and fake bits hanging off it like that horrendous FK8 that looked like it was designed by a 13 year old The other issue of course in the current market is cost, currently the type R is around $70k, a twin is around $50k Meh, I'm old and grumpy and would rather buy a older model car and waste my coin on that than buying anything currently available new  
×
×
  • Create New...