Anyone ever Tried tuning with SAFC
08-01-2004, 08:08 PM
#1
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Anyone ever Tried tuning with SAFC
Anyone in here ever tried tuning with SAFC ?
i recently had my car dynoed and air/fuel was less than ideal for a N/A car, would i beable to tweak it with a SAFC?
i recently had my car dynoed and air/fuel was less than ideal for a N/A car, would i beable to tweak it with a SAFC?
08-02-2004, 07:12 AM
#4
SAFC doesn't to too much on NA cars. don't waste ur $$ on that before ur basic bolt-ons.
my guess is ghost 0304 CEL on ur car...u mite wanna check the spec of the voltage on ur current knock sensor.
my guess is ghost 0304 CEL on ur car...u mite wanna check the spec of the voltage on ur current knock sensor.
08-02-2004, 07:12 AM
#5
here's some detail KS info: http://forums.maxima.org/showpost.ph...3&postcount=42
08-02-2004, 11:31 AM
#9
Tuning with the s-afc netted me .2 in the 1/4 mile n/a.
I have it for nitrous but it has 2 settings so I tuned it with the wideband.
Funny part is the settings for n/a are much more radical than the nitrous ones. They range from -6 to -11 where the nitrous ones a 0 to +3.
I have it for nitrous but it has 2 settings so I tuned it with the wideband.
Funny part is the settings for n/a are much more radical than the nitrous ones. They range from -6 to -11 where the nitrous ones a 0 to +3.
08-02-2004, 04:54 PM
#10
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Originally Posted by Jime
Tuning with the s-afc netted me .2 in the 1/4 mile n/a.
I have it for nitrous but it has 2 settings so I tuned it with the wideband.
Funny part is the settings for n/a are much more radical than the nitrous ones. They range from -6 to -11 where the nitrous ones a 0 to +3.
I have it for nitrous but it has 2 settings so I tuned it with the wideband.
Funny part is the settings for n/a are much more radical than the nitrous ones. They range from -6 to -11 where the nitrous ones a 0 to +3.
can you elaborate on nitrous and n/a settings
08-02-2004, 05:16 PM
#11
Originally Posted by zack342
can you elaborate on nitrous and n/a settings
N/A settings from 4k up as follows: -11, -11, -11, -7, -6, -7, -7, -10, -10, -7, -6, -6
Nitrous is: +3, +3, +3, +2, +2, +2, 0, 0, 0, 0, 0, 0
08-02-2004, 05:43 PM
#13
Wow.
Originally Posted by Jime
I have my rpm as follows: 4k-6.2k in 200 rpm increments for a total of 12 set points.
N/A settings from 4k up as follows: -11, -11, -11, -7, -6, -7, -7, -10, -10, -7, -6, -6
Nitrous is: +3, +3, +3, +2, +2, +2, 0, 0, 0, 0, 0, 0
N/A settings from 4k up as follows: -11, -11, -11, -7, -6, -7, -7, -10, -10, -7, -6, -6
Nitrous is: +3, +3, +3, +2, +2, +2, 0, 0, 0, 0, 0, 0
Wow getting over me head. Anyone like to offer a quick explanation as to how some of these number work for those who are aspiring tuners?!
08-02-2004, 06:06 PM
#14
Originally Posted by MDeezy
Wow getting over me head. Anyone like to offer a quick explanation as to how some of these number work for those who are aspiring tuners?!
The rpm point can be set at whatever you like as long as the increment is at least 200. My car gets to 4k real fast in 1st and never goes below again so I started there. It is totally configurable.
You need a wideband to tell you what the a/f is throughout the rpm band so you know if you have to add or take away fuel. Then its just a simple matter of changing the settings and check the a/f again until you get the readings as close as you can to your desired setting.
08-02-2004, 07:04 PM
#15
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Originally Posted by Jime
Those numbers are the amount in % of fuel that is added or taken away (+ or -) by changing the signal going from the MAF to the ECU at each indicated RPM.
The rpm point can be set at whatever you like as long as the increment is at least 200. My car gets to 4k real fast in 1st and never goes below again so I started there. It is totally configurable.
You need a wideband to tell you what the a/f is throughout the rpm band so you know if you have to add or take away fuel. Then its just a simple matter of changing the settings and check the a/f again until you get the readings as close as you can to your desired setting.
The rpm point can be set at whatever you like as long as the increment is at least 200. My car gets to 4k real fast in 1st and never goes below again so I started there. It is totally configurable.
You need a wideband to tell you what the a/f is throughout the rpm band so you know if you have to add or take away fuel. Then its just a simple matter of changing the settings and check the a/f again until you get the readings as close as you can to your desired setting.
Do i have to get a wide band? can i dyno tune? also is 13:1 ideal for NA?
08-02-2004, 07:07 PM
#16
Originally Posted by zack342
Do i have to get a wide band? can i dyno tune? also is 13:1 ideal for NA?
I tune to 13.2 for n/a and 11.8-12.0 for nitrous. I prefer to do the wideband on the strip because a dyno does not load the engine the same.
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