How does this target AFR table look?, VE table results after autotune |
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How does this target AFR table look?, VE table results after autotune |
rwilner |
Mar 28 2012, 08:36 AM
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#1
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No Ghosts in the Machine Group: Members Posts: 953 Joined: 30-March 10 From: Boston, MA Member No.: 11,530 Region Association: North East States |
I'm going to use the autotune feature of Microsquirt to set my fuel map (VE table). This system will automatically adjust the VE to achieve the mixture as defined by the target AFR table.
This is a 12x12 table. The Y axis is MAP reading (load), and the X axis is RPM. This table was auto-generated by this microsquirt calculator. What do you guys think? Is this a solid target AFR table or are adjustments needed? |
gothspeed |
Mar 28 2012, 10:47 AM
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#2
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Senior Member Group: Members Posts: 1,539 Joined: 3-February 09 From: SoCal Member No.: 10,019 Region Association: None |
good chart mrbubblehead ............ that chart shows temps at ideal ignition timing ........ (IMG:style_emoticons/default/smile.gif)
if one's temps vary much beyond what the chart shows ......... it means the timing is not ideal for that given A/F ratio. A/F ratio changes affect 'flame front speed', here; http://www.innovatemotorsports.com/resources/myths.php Here is a simple explanation on the rich vs lean heat issue; http://www.newton.dep.anl.gov/askasci/eng99/eng99611.htm Also: http://www.innovatemotorsports.com/resources/rich.php |
mrbubblehead |
Mar 28 2012, 11:03 AM
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#3
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Twodollardoug Group: Members Posts: 1,155 Joined: 17-December 10 From: calimesa ca. Member No.: 12,492 Region Association: Southern California |
good chart mrbubblehead ............ that chart shows temps at ideal ignition timing ........ (IMG:style_emoticons/default/smile.gif) if one's temps vary much beyond what the chart shows ......... it means the timing is not ideal for that given A/F ratio. A/F ratio changes affect 'flame front speed', here; http://www.innovatemotorsports.com/resources/myths.php Here is a simple explanation on the rich vs lean heat issue; http://www.newton.dep.anl.gov/askasci/eng99/eng99611.htm Also: http://www.innovatemotorsports.com/resources/rich.php (IMG:style_emoticons/default/agree.gif) (IMG:style_emoticons/default/agree.gif) there arnt many people that realize the relationship between a/f ratio and timing.... most just set the timing and tune to it. |
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