Safc II & Msd 6 btm

[chad_KAT]

With these two items and with proper dyno tuneing, and a Wideband (UEGO) what do you think this set-up could handle as of WHP? with the factory ECU. the reason i ask is becasue im sort of on a budget with the fuel managment and the timming. I would like to use this type of set-up and way later down the road i can get an Aem Ems. im looking for 300-350 WHP, is it possible? sorry for stupid questions, i just need to educate myself more on this stuff. oh yeah this will be with phat ka-ts fuel system. if you need to knowm more on my turbo set-up just let me know.
Modified by chad_KAT at 4:34 PM 5/28/2006

[Structure240sx]

it could actually get your 400rwhp, because the safc can handle 550cc injectors. and you would have enough timing control. of course this is with some race gas in the mix

i think 350rwhp is a safer limit though. also think about the emanage. i havent used one personally but would like to so you dont have a linear timing setting

[D Money]

why r u talkin about emanage? the btm and safc is my plan 4 350hp too though till i can afford aem

[nismo1003]

You need some type of logging for ur UEGO for the tuning purposes.

[DammitBobby]

It would be cheaper to replace your ECU with a Enthalpy or JWT. 500 bucks and your are finished. No messing with timing, wiring or programming. If you later want to go the AEM route you won`t have to rewire and solder again.

[pr240sx]

If I have an JWT ECU, how can I check what program is exactly burned in.Without using a EEPROMM reader.

[Structure240sx]

all jwt ecu's have a label printed onthe outside of the ecu telling what it is tunned for

i was talking about the emanage beause it would only be a little more money and could give a more precise tune. i personally have an safc

[pr240sx]

Yep, I too also plan on using a SAFC but I found a JWT 240sx ECU with no history of it (isnt mine) and yes, there is some numbers written but no configuration whastoever.If I installing it is not a viable option right now as I dont have my 240 available.But back to the topic. YOu can even use the 3 of themJWT for simplicity sakesSAFC for fine tunning fuelBTM for fine tunning (and compesation for the SAFC timing advance) timingAny final word from this rumor? SAFC corrections makes the ECU advance timing?

[virus77]

Any final word from this rumor? SAFC corrections makes the ECU advance timing?

thats not a rumor

[DRIFTEADOR]

anything that cuts load voltage to the ecu, basically any piggyback fuel controller, will bump timing.

anyone have a stock timing map by chance? i'd like to see how much timing the ecu pulls so that I can correct it. oh and also [shameless plug] how much does an safc1 go for nowadays? i've been trying to sell one for $150 but no bites yet[/plug]

[240SicknessX]

thats not a rumor

with an safc it amplifies or reduces the mafs signal to compensate for larger injectors\adjust a fuel curve. This new output from the safc to the ecu is compared to the tps voltage, based off the NA timing map, it will advance or retard timing based off the tps voltage and the mafs signal correction.

when safc is in negitive numbers it will advance timing, when safc is in positive numbers, it will retard timing.

look back probably a couple pages and you will find a couple indepth threads about this topic.

[DRIFTEADOR]

^i know i've read it here before too, but i'm pretty sure the ecu doesn't base load on throttle position. tps is used for quick fuel enrichment like accel/decel maps which only lasts for a split second after changing throttle position. after that, it is only the load, maf in this case, value (and rpm of course) that decides how much fuel/timing the motor gets. I could be wrong, I don't know how the stock ecu works, but that's how aem ems works. you can choose to base load off tps if thats the only option (itb's), but it's not the best source.

[pr240sx]

So, what if I use a JWT or Enthalpy ECU and a SAFC for fine tunning.Normally I wont be needing the SAFC co compensate for bigger injectors as the ECU is already programmed for them.As for SAFC timming changes, any work around? What if I keep base timing stock and use the BTM to retard timming via boost. Does the ECU will bump timing back or does the ECU bumps timing then the BTM retards it?