04-16-2014, 10:36 AM #1
Sorry, another thread about AFR but can't find the info... I am running a V-Tech reflash (8375 AGR 402) on my RXT-260 2012 ...
Can someone give me AFR range I should get... I have a FPR set at 58 PSI ... Here's the info I found.
IDLE: ~ 12.5
MID: ~ 13.5 - 14.0
WOT: ~ 11.7 - 12.2
Is this correct? V-Tech says I need 14.0 - 14.7 at IDLE ... I'm confused...
04-16-2014, 11:47 AM #2
actually 13-5, 14 is ok on idle.
If you stay at 12.5 then you can have start issues and take off issues, plugs go bad.
Its very easy to change this in the editor.
Just reduce fuel a bit in the idle area.
04-16-2014, 12:09 PM #3
14 to 3.5k rpms, slope down to 13.5 by 5000rpms and continue the slope down to 13 by 6k then end up at 12.2 @ 8300 with an X-SC
pull 4% below 2k and go from there
04-16-2014, 12:14 PM #4
04-16-2014, 12:16 PM #5
04-16-2014, 12:30 PM #6
BTW looking at an AFR gauge is not too accurate. You could be catching a blip of this AFR or that AFR. You need to be reading a log so you can see and track true AFR vs throttle then make an accurate decision on where to pull or add fuel
04-16-2014, 12:34 PM #7
Yeah, I know ... But it looks like you can't connect the 0-5v from my MTX-L to the V-Tech Datalogger at the moment ... And I don't want to always disconnect my O2 sensor from the gauge because of the calibration process...
04-16-2014, 12:41 PM #8
I'm in the same boat but until you know your tune is spot on you need to be using the datalogger.
04-16-2014, 01:14 PM #9
Why each time I start a new thread on this forum I end up with -500$ in my wallet :P LOL
I should order the datalogger and leave my O2 Sensor on the datalogger until there's a way to connect the 0-5v ... V-Tech was saying it's a matter of software...
04-16-2014, 03:31 PM #10
I have another question, can I adjust the Idle afr on the hose? If not why?
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