Apexi S-AfCII for RA

Corton520 · Jul 30, 2009, 07:18 PM

alright so they have this thread for the lancers and the evos but no ras
so if anyone has this can someone help me learn how to tune it? or if its not tuned...what should the numbers read? and how to use it?

hackish · Jul 30, 2009, 08:36 PM

I tried the product. It does not work for the ralliart. They are electrically incompatible. In fact a year or so ago I purchased and tried every single piggyback on the market and tried them all. None work. That's why I developed a reflash. Sorry.

-Michael

Corton520 · Jul 30, 2009, 08:44 PM

can you tell me more about the reflash then?
and will the apexi product ruin my car if i keep it installed? cuz it does add a nice blue interior touch haha

Corton520 · Jul 31, 2009, 11:26 PM

alright i set it to its initial settings...will this harm the engine in any way? and can you plz imform me on this reflash you talked about?

Ralliart_on_LSD · Aug 1, 2009, 08:09 AM

search for the thread.

Corton520 · Aug 1, 2009, 10:39 AM

i have searched and they only have it for the lancer not the ralliart

4g64fiero · Aug 2, 2009, 03:17 AM

I highly suggest megasquirt. It can be made to fit any application. megamanual.com

hackish · Aug 2, 2009, 07:58 AM

I highly recommend that you speak with a professional tuner before going the megasquirt route. It's a $200 engine management solution and you get what you pay for. It can be made to work but it really doesn't have any proper closed loop, idle control. The startup strategy is pretty basic and the hardware is not exactly designed or built for reliability. I understand it's a grassroots system not designed by engineers, programmers or people who do that sort of stuff professionally. It's good for people who want to learn the basics of tuning for cheap.

If you do not wire in the MAF intercept then sure the safc will not harm anything. Unfortunately because of the way the factor ECU reads the MAF signal it's very very difficult to correctly modify it without having unintended side effects.

-Michael

Corton520 · Aug 2, 2009, 09:44 AM

so if i disconnect the maf wire then i should be ok?

abuelo ralliart · Aug 9, 2009, 08:34 PM

You CAN install your SAFC!!! You just need to know how to do it. Check this:

Finally found how to install a SAFC on a Ralliart

Been running with it for about 9 months with no problems. The only downside it that you only can tune while in WOT, other than that, when it is in close loop it will return to stoich tune.

Corton520 · Aug 9, 2009, 09:35 PM

thanks as soon as i learn how to do everything it says on there ill do it cuz im not the greatest when it comes to electrical

hackish · Aug 10, 2009, 06:57 AM

Quote:

Originally Posted by abuelo ralliart

You CAN install your SAFC!!!
Been running with it for about 9 months with no problems. The only downside it that you only can tune while in WOT, other than that, when it is in close loop it will return to stoich tune.

Very nice. You've solved one of the two electrical problems. The ECU has 2 sampling modes for the MAF so your circuit, although it provides enough drive current has know way of knowing which sampling mode the ECU is using. It still doesn't solve the open loop/closed loop issue. You can do that with some sophisticated narrow band emulation (you need a wideband) but I found that method just threw a lot of check engine lights. When it becomes available a reflash will just solve all those problems.

-Michael

Corton520 · Aug 10, 2009, 04:00 PM

so there is no reflash for our cars yet?

hackish · Aug 10, 2009, 06:02 PM

There is. It's still in beta testing. I've got a number of people here and locally who are running very successfully with reflashes. I'm not a vendor here and am not selling them yet. When the reflash hardware is available I may sign up as a vendor and start selling or I may just pick an already active vendor and wholesale them. I haven't decided yet how to market the product.

-Michael

abuelo ralliart · Aug 10, 2009, 06:33 PM

Yeah, you are right Mike, still can't adjust close loop.......maybe if running NA and minor-mild mods may be a great option; but if you are going forced induction (like I will - soon) may help but it is not the best; the main problem will be mid throttle boost.
Anyways Corton, if you have a RA and have a SAFC (as l did) you may spend 3 bucks and make your Apexi run....it is WAY better and much more fun than nothing, at leat until Mike finishes his reflash P)