a/f ratio tuning based on load/gear
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single digit dreamer
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From: omaha ne
a/f ratio tuning based on load/gear i have atap, ls1edit and fjo wideband. been dialing in my tune a little. here is my problem.
shooting for low 11/11.5-1 a/f ratio, when it is under the highest load it tends to be richer than other times, how do i adjust for this. here is what i am seeing.
floor it and when the stall is just grabbing(high load) i see 10.5-1, then once the rpms start to rise again(not as high load) i see ~11.3-1, then all the rest of 1st and 2nd i see ~11.3-1, then finialy when i hit 3rd(high load) it drops to 10.5-1 again till the end of the run.
is there a way to adjust for this with ls1edit? it is not rpm dependant so the PE/rpm section wont work for me.
shooting for low 11/11.5-1 a/f ratio, when it is under the highest load it tends to be richer than other times, how do i adjust for this. here is what i am seeing.
floor it and when the stall is just grabbing(high load) i see 10.5-1, then once the rpms start to rise again(not as high load) i see ~11.3-1, then all the rest of 1st and 2nd i see ~11.3-1, then finialy when i hit 3rd(high load) it drops to 10.5-1 again till the end of the run.
is there a way to adjust for this with ls1edit? it is not rpm dependant so the PE/rpm section wont work for me.
Thread Starter
single digit dreamer
iTrader: (6)
Joined: Mar 2002
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From: omaha ne
Re: a/f ratio tuning based on load/gear here is a screen shot, hope you can see it ok, after looking closer i think it may be rpm dependant, i am just not in the 4200-4800range very long except for 3rd gear. these are 1/8th mile runs, maybe some 1/4 mile runs would be geting lean at the end of 3rd.
<img src="http://members.***.net/parish8/aflog.jpg" alt=" - " />
<small>[ March 30, 2003, 11:34 PM: Message edited by: parish8 ]</small>
<img src="http://members.***.net/parish8/aflog.jpg" alt=" - " />
<small>[ March 30, 2003, 11:34 PM: Message edited by: parish8 ]</small>
Re: a/f ratio tuning based on load/gear You should try and do as much of your WOT tuning in a 1:1 gear as possible.
So, A4 guys should tune in 3rd and M6 guys should tune in 4th.
After you get the 1:1 AFR dialed in where you want it then go back and tune the lower RPM points to where you want them.
I also have the FJO WBo2 in my car and have used it extensively for tuning. It is a great little tool.
Scott
So, A4 guys should tune in 3rd and M6 guys should tune in 4th.
After you get the 1:1 AFR dialed in where you want it then go back and tune the lower RPM points to where you want them.
I also have the FJO WBo2 in my car and have used it extensively for tuning. It is a great little tool.
Scott
Thread Starter
single digit dreamer
iTrader: (6)
Joined: Mar 2002
Posts: 9,757
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From: omaha ne
Re: a/f ratio tuning based on load/gear i do have the cot feature shut off. i will try and do some tuning in 3rd, that only makes sence to give it the most time to log but i have a slight problem, for me 6000rpm in 3rd gear is close to 140mph <img border="0" title="" alt="[Eek!]" src="gr_eek2.gif" /> .
Re: a/f ratio tuning based on load/gear I never said that it was easy...or safe <img border="0" title="" alt="[Wink]" src="gr_images/icons/wink.gif" />
Just find a nice empty freeway or long industrial street and go play at about 2:00am.
Scott
Just find a nice empty freeway or long industrial street and go play at about 2:00am.
Scott
