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Poor AFR

Old Mar 26, 2008 | 10:03 PM
  #11  
91talon27's Avatar
0.0 BAR
 
Joined: Mar 2008
Posts: 10
Default Re: Poor AFR

What is your AFR at idle? How about under full boost? Anything under 32% throttle will use the low throttle settings to adjust your AFR anything above 70% will use your high throttle settings. Anywhere in between 32% and 70% will calculate the difference between the throttle settings at the percentage of throttle you are at. You want to be at or near 14.7 at idle. It will fluctuate as the ecu will try to compensate for it to be at 14.7. At full boost you want to be around 10.5 to 11.0 this for a conservative tune. I hope this helps.
Old Mar 26, 2008 | 10:07 PM
  #12  
Birdley42008's Avatar
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1.5 BAR
 
Joined: Sep 2007
Posts: 862
Default Re: Poor AFR

Im waiting on an ecu from xenocron. I dont have a wideband so I dnt know my exact afr.
Old Mar 26, 2008 | 10:27 PM
  #13  
91talon27's Avatar
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Default Re: Poor AFR

I would suggest saving up to get a wideband as they are a must have. I am willing to bet you are running extremely lean under boost as I was running around -28 to -30 tunning Pte 780cc injectors before I went with a chipped ecu. But I also have a AWD DSM.
Old Mar 26, 2008 | 11:28 PM
  #14  
Birdley42008's Avatar
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Default Re: Poor AFR

I was actually running rich. I dont personally have a wideband but when it was on the dyno it was a straight 11.0
Old Mar 27, 2008 | 09:20 AM
  #15  
91talon27's Avatar
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Default Re: Poor AFR

Under boost you are shooting for 11:1 as a conservative/safe tune. So your are pretty much where you should be under boost.
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