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JDARCO JDARCO is offline
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Default Map 2 Review - 09-26-2018, 09:55 AM

M240xi, map 2, third gear pull, intake and midpipe, 72 ambient

Thank you!
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JBoe JBoe is offline
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Default 09-29-2018, 12:52 PM

What fuel? Looks like your reaching upper limits of fuel. There's not really timing drop, but timing does go low in the beginning of the run as fuel runs out and maxes trims. Do you have a map 1 for comparison?
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Terry @ BMS's Avatar
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Default 09-29-2018, 03:10 PM

Looks good to me.
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JBoe JBoe is offline
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Default 09-29-2018, 05:54 PM

Quote:
Originally Posted by Terry @ BMS
Looks good to me.
I only say near fuel limits as trims do max out and then don't go below 40. While timing drops 5 or more degrees, it catches and comes back well. Thus, even more of a sign that limits are being reached with current setup.

Am I seeing that correctly Terry or over reading the logs?
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Payam @ BMS's Avatar
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Default 10-01-2018, 07:23 AM

Quote:
Originally Posted by JBoe
I only say near fuel limits as trims do max out and then don't go below 40. While timing drops 5 or more degrees, it catches and comes back well. Thus, even more of a sign that limits are being reached with current setup.

Am I seeing that correctly Terry or over reading the logs?
I only see timing drop in one cylinder and right after shifting which is all completely normal. The fuel trims are on the edge, not too bad though from your AFR.


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JBoe JBoe is offline
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Default 10-01-2018, 07:38 PM

Quote:
Originally Posted by Payam @ BMS
I only see timing drop in one cylinder and right after shifting which is all completely normal. The fuel trims are on the edge, not too bad though from your AFR.
Interesting... I don't see a shift. He's in gear and pedal to the floor before the drop. I agree that during initial peak torque timing generally drops, but it drops a lot before coming back in. My only thought is that it's due to maxing out trims. Once I got my trims back within range, such drops were lessened and I got more timing by redline and throughout pull.

I don't mean to high jack JDARCO's thread... just trying to get your takes on the timing when trims max out. The B58 definately likes being in its happy zones. Figuring out those zones has been tricky. Lol.

To me he's maxed out on Map 2... Map 3 would likely be worse and show issues. Although, most say it doesn't hurt to try/log.

Last edited by JBoe; 10-02-2018 at 08:40 PM..
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