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A/F ratio ? - dyno graph inside

Old Feb 12, 2003 | 02:27 PM
  #1  
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Default A/F ratio ? - dyno graph inside

I don't know much about A/F ratios except that by adjusting it you can make more HP.

Looking at this graph I have, it looks like my A/F is high 13's.

But at the top it says Max Air/Fuel = 17.5

Can someone clue me in?

<img src="http://www.fuelslut.com/hosting/uploads/graph2.jpg" alt=" - " />
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Old Feb 12, 2003 | 04:45 PM
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Default Re: A/F ratio ? - dyno graph inside

hmmmmmm, dunno, looks like your power curve peak is sort of matching the A/F number, thus the 17.5 reading, but the A/F on the graph shows 13.5 across the board. If your A/F was 17.5..... <img border="0" title="" alt="[Eek!]" src="gr_eek2.gif" />
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Old Feb 12, 2003 | 05:04 PM
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Default Re: A/F ratio ? - dyno graph inside

I would richen it up to about 12.8 or so. Our dyno always says 17.5 at the top too. Don't know why????

Sean
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Old Feb 12, 2003 | 05:15 PM
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Default Re: A/F ratio ? - dyno graph inside

</font><blockquote><font size="1" face="Verdana, Helvetica, sans-serif">quote:</font><hr /><font size="2" face="Verdana, Helvetica, sans-serif">Originally posted by lbz34:
<strong> I would richen it up to about 12.8 or so. Our dyno always says 17.5 at the top too. Don't know why????

Sean </strong></font><hr /></blockquote><font size="2" face="Verdana, Helvetica, sans-serif">What is the best way to richen it up, via MAFT?
And do i need to get it back on the dyno to do it (check it)?

<small>[ February 12, 2003, 05:17 PM: Message edited by: topfueluhl ]</small>
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Old Feb 12, 2003 | 06:22 PM
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Default Re: A/F ratio ? - dyno graph inside

Isn't 17.5 the maximum scale
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