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Coding and Tuning Discuss all avenues of coding and tuning here!


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Old Fri, Jan-16-2015, 05:49:51 PM   #21
p0lar
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Default Re: map switching

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Are you reading my mind ? A flexfuel sensor integration is in a pipeline...
You guys are animals. When I win the lottery, I will [over]employ both of you. Guess I should start playing the lottery as my odds at < 1 ticket seem exceedingly miniscule.
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Old Fri, Jan-16-2015, 06:31:05 PM   #22
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Man you're on a roll, good job. Definitely in for E85/pump switch. Though I've been looking at implementing a GM alternative fuel sensor tying into unused CSL flap input.
Think it'd be possible to use one of the unused MSS52 inputs instead? There's an unused knock sensor input and a couple unused cam position sensor inputs
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Old Sat, Jan-17-2015, 02:44:31 PM   #23
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Old Sat, Jan-17-2015, 07:50:04 PM   #24
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We're not worthy! We're not worthy!!!!


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Old Sat, Jan-17-2015, 08:21:24 PM   #25
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i read somewhere a guy had an ESS switchable tune with 170bhp for fuel saving iirc?

with this you could use the 170bhp map in economy mode when there's heavy traffic, then switch to 360bhp custom tune when it clears!
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Old Sun, Jan-18-2015, 09:37:16 AM   #26
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Old Sun, Jan-18-2015, 12:20:12 PM   #27
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Default Re: map switching

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i read somewhere a guy had an ESS switchable tune with 170bhp for fuel saving iirc?

with this you could use the 170bhp map in economy mode when there's heavy traffic, then switch to 360bhp custom tune when it clears!
I believe that was a valet mode, not a fuel saving mode. I doubt there's a ton of fuel efficiency to be had via tuning, but I don't really know
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Old Sun, Jan-18-2015, 12:35:28 PM   #28
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Might be possible to tune for efficiency by messing with vanos, but I doubt it would yield much. If we had DI, it'd be another story
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Old Sun, Jan-18-2015, 02:22:15 PM   #29
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Default Re: map switching

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I believe that was a valet mode, not a fuel saving mode. I doubt there's a ton of fuel efficiency to be had via tuning, but I don't really know
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Old Sun, Jan-18-2015, 02:30:03 PM   #30
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Well, it would certainly be fun. But, the M3 gets low 30s on the highway, stock. Better than my wife's e91 328i, which is really fuel economy focused from BMW. I have trouble imagining much room for improvement
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Discussing map switching in the Coding and Tuning Forum - Discuss all avenues of coding and tuning here! at BMW M3 Forum.com (E30 M3 | E36 M3 | E46 M3 | E92 M3 | F80/X)