Jump to content
SAU Community

Recommended Posts

  • Replies 41
  • Created
  • Last Reply

Top Posters In This Topic

Thanks mate. Your responses are as fast as your car.

you can just see pauls head gettin bigger :D

what steve said is right, put the exhaust on and have a quick dyno run to check the AFR's. if theyre rediculously rich then maybe consider an AFC. you can get one of the older series ones for around the $150 mark

Link to comment
https://www.sau.com.au/forums/topic/16458-safc/page/2/#findComment-339418
Share on other sites

I can't say that the map I used when going to the dyno was any evidence of a good tune. My afr's above 120kmh in 4th were super rich. I did mean to make them that way to minimise the ping issue. Otherwise the afr was around 12 which aint bad for a road tune.

The dyno resulted in 230 something HP at 130kmh, whatever that is in rpm (I am guessing 4700rpm) before the ping comes in.

I've got a 600HP fuel pump in now and things seem a little better coming onto the throttle than before too.

Link to comment
https://www.sau.com.au/forums/topic/16458-safc/page/2/#findComment-341338
Share on other sites

aftermarket management would be the way to go and possibly a boost controller, then before u start playing with bigger turbos, have to consider, upgrading fuel system, and rebuild engine with stronger internals so it can cope with the power level and higher boost levels that bigger turbos produce :)

if you don't want a full on ecu, get an apexi safc or safc II which is a piggy back air fuel controller, i just got mine unitl i can afford a full on ecu :)

adrian :P

Link to comment
https://www.sau.com.au/forums/topic/16458-safc/page/2/#findComment-346824
Share on other sites

adrian, how much did the apexi safc2 cost you and what better performance are you getin out of it?? Wheres the best place to buy one from and who do you reckemond to work on cars, i took mine to Tim Sleko to get a GFB boost controller put on (now at 10 psi), and take off the fuel regulator cause it was running too rich.

Matty P R34

Link to comment
https://www.sau.com.au/forums/topic/16458-safc/page/2/#findComment-348362
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

    • Bit of a pity we don't have good images of the back/front of the PCB ~ that said, I found a YT vid of a teardown to replace dicky clock switches, and got enough of a glimpse to realize this PCB is the front-end to a connected to what I'll call PCBA, and as such this is all digital on this PCB..ergo, battery voltage probably doesn't make an appearance here ; that is, I'd expect them to do something on PCBA wrt power conditioning for the adjustment/display/switch PCB.... ....given what's transpired..ie; some permutation of 12vdc on a 5vdc with or without correct polarity...would explain why the zener said "no" and exploded. The transistor Q5 (M33) is likely to be a digital switching transistor...that is, package has builtin bias resistors to ensure it saturates as soon as base threshold voltage is reached (minimal rise/fall time)....and wrt the question 'what else could've fried?' ....well, I know there's an MCU on this board (display, I/O at a guess), and you hope they isolated it from this scenario...I got my crayons out, it looks a bit like this...   ...not a lot to see, or rather, everything you'd like to see disappears down a via to the other side...base drive for the transistor comes from somewhere else, what this transistor is switching is somewhere else...but the zener circuit is exclusive to all this ~ it's providing a set voltage (current limited by the 1K3 resistor R19)...and disappears somewhere else down the via I marked V out ; if the errant voltage 'jumped' the diode in the millisecond before it exploded, whatever that V out via feeds may have seen a spike... ....I'll just imagine that Q5 was switched off at the time, thus no damage should've been done....but whatever that zener feeds has to be checked... HTH
    • I think Fitmit had some, have a look on there (theyre Australian as well)
    • Hah, fair enough! But if you learn with this one you can drive any other OEM manual. No modern luxury features like auto rev-matching or hillstart assist to give you a false sense of confidence. And a heavy car with not that much torque so it stalls easily. 
    • Actually, I'd say all three are the automatic option. Just the different trim levels. The manual would be RSFS, no? 
×
×
  • Create New...