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Ironworker Local #16
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723 Posts
Discussion Starter #1
I been reading a lot about the SAFC II and I found in a couple post that you can only tune the 3G to wide open throttle cause the ECU with eventually will retune itself. I'm wondering if I'm gonna have any problems with using this with a turbo. Like if I'm not running my car at WOT but still boosting a little, will my car get the proper air fuel mixture it should. I'm still learning about the FI on the 3G and just wanna make sure my car can run safley so sorry if I'm being a pain asking another SAFCII question.

2003 GT Sporty__________________________________________________________________________________________
http://webmail.cablespeed.com/~junior16md/
 

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Kampfbereit
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17,852 Posts
Spuds said:
I been reading a lot about the SAFC II and I found in a couple post that you can only tune the 3G to wide open throttle cause the ECU with eventually will retune itself. I'm wondering if I'm gonna have any problems with using this with a turbo. Like if I'm not running my car at WOT but still boosting a little, will my car get the proper air fuel mixture it should. I'm still learning about the FI on the 3G and just wanna make sure my car can run safley so sorry if I'm being a pain asking another SAFCII question.

2003 GT Sporty__________________________________________________________________________________________
http://webmail.cablespeed.com/~junior16md/
You tune the Hi settings of your ECU at WOT since WOT is open loop on yoru o2 sensors. To tune your low settings, all you need is a datalogger to tune your car back to the point your fuel trims don't have to make such drastic adjustments. The AFC intropolates the tune from low/high throttle. Your tuner should know this anyways.
 

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Ironworker Local #16
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723 Posts
Discussion Starter #3
Tearstone said:
You tune the Hi settings of your ECU at WOT since WOT is open loop on yoru o2 sensors. To tune your low settings, all you need is a datalogger to tune your car back to the point your fuel trims don't have to make such drastic adjustments. The AFC intropolates the tune from low/high throttle. Your tuner should know this anyways.
Thanks for the info man I was just a little confused on how it worked. I am gonna having this place tune it for me: http://www.extrememotorsports.com/ I've heard a lot of good things bout them plus I saw their one talon running low 9's at the track so they got to know what they are doing.

2003 GT Sporty_____________________________________________________________________________________________
http://webmail.cablespeed.com/~junior16md/
 

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Kampfbereit
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17,852 Posts
E_bomb_gt said:
If you are street tuning you want you a/f guage on stoich almost to rich on WOT, right?
If you are street tuning you want a wideband. Depending on the amount of boost you are running, versus what you are timing you shoudl be tuning to 12:1 A/F ratio.

If you think that you can use a autometer blinky gauge to tune your car, then I have a short block upgrade available.
 

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Resident Asshole
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6,056 Posts
Tearstone said:
If you think that you can use a autometer blinky gauge to tune your car, then I have a short block upgrade available.
yeah the blinky gauge is useless for tuning...hell its pretty much useless for anything but displaying flashing lights
 

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Kampfbereit
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17,852 Posts
E_bomb_gt said:
we have a wideband lol!!! like i said 12:1 is where are afr should be under 10 psi I right... we don't go buy that autometer guage lol, we took my buddys wideband off his rx7 and using that for now! lol. what did you guys do with timing at 5 psi.
You should be okay with stock timing at 5psi. When you get up to around 8psi, you can pull about 2 degrees. What size hot side are you running on your turbo?
 

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Kampfbereit
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