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- #76
Evo_This
15+ Year Contributor
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- Nov 11, 2007
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Houston,
Texas
You need to get your airflow calibrated before you "look for power". Once you can actually hit the AFR that you are targeting repeatedly at every RPM/load point, then you can start trying new AFRs and timing in the search of better performance.
Obviously, you can just skip the calibration thing and start throwing numbers at it, but you'll regret it in the long run..
Wait, wait...I didn't go blindly throwing numbers in. I was reffering to why I starting changing the tune from what I already had. As you see the wb n afre matched in those logs and everything was correct, very little knock, hitting 11s. Things were fine. So at that point I started looking for power. Once I tried going to 10s n upped the timing, things starting to get off. I'm going to calibrate the maf to get the wb/afr in line.
I'm not sure what you are referring to. To manipulate the display, the only two values you need to set are the min and max values for each logged parameter.
I was trying to set up the lines. How you broke the screen up into fourths, don't see the options you posted.
Lean it out to at least 11.6-11:8:1 your not doing your self any favors going that rich....
Go how rich? It's set at 11.5 and doesn't go higher, it's going lean and not reaching 11.5. My fault I know, will calibarate today.
This is E85 right?
Just scanned over this since my last post...
But, what calan said as far of lean arf's on e85 and rich knock...
Is what I've always seen as far as E85 it Does NOT like to go that rich. If you had a more agriessive setup or where running a more aggressive timing curve in that last log (the only resent one I've looked at)
Okay, look at the four logs before this last one. Much more aggriessive than the last one. Please note I posted a log from two of my tunes for comparison. One light on timing, one heavy with changes in afrs and boost.
You would be knocking I bet at that AFR and I've only seen in my experiance a hand full of cars that liked anythign even close to in the 11.4:1 range rather then 11.8:1 on a gas scale wideband.
Confused here, my last log was set to 11.0 on light timing and reaching 10.8-11.0. No knock.
The four logs before that was set at 11.5 on high timing and staying in the 10s never reaching 11.5. Getting knock. Are you saying 11 or 11.5 is rich? First you're saying to lean it out to 11.8-11.6 but then saying it's rich.
It's prefectly safe to go leaner then richer on a setup like yours (again as Calan has said) (not at all saying it's the way to go or Really safe) But I've seen WAY lean Afrs on Ethanol an it doesn't mind. Though When you start to getting up in the power that your "margin of error" starts to really fade fast.
Above all, make sure Edit:as calan said things are completly calibrated Before doing anything that part is what the masses here think is "tuning" when in reality it's the fairly easy part.
Once that is done you can start testing things out to apply what you know/have learned about tuning in reality.
Go leaner towards what? 10s? 12s? You have honestly confused the hell out of me this time.
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