daniel mason
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| posted on 16/5/11 at 09:45 PM |
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whats an acceptable afr reading?
i have now got my car running,and am using an aem digital wideband kit with bosch sensor. i have only had it idling on tickover for a few minutes at a
time to check for leaks etc. the guage was reading at around 14 on tickover from cold but didnt seem to change much once warm! is this normal and
whats a reasonable reading? cheers
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RichardK
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| posted on 16/5/11 at 10:00 PM |
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About 14 is about right but should be at wot (wide open throttle)
Cheers
Rich
Gallery updated 11/01/2011
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coyoteboy
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| posted on 16/5/11 at 11:25 PM |
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You'll be wanting around 14 at idle on most engines (leaner on newer engines will be ok, older engines tend to misfire). Cruise can be as lean
as 15:1 on most engines, leaner on some. WOT, assuming non-turbo, you'll be looking around 12.5-13.5:1 but its very engine-specific. Don't
go leaner on WOT. 12.5:1 is about as lean as I'd want to go on-boost with a turbocharged car, safer to stay richer.
This is a fairly generic AFR table:
Maybe a tad lean around 1100rpm super-low load cells.
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matt_gsxr
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| posted on 17/5/11 at 08:47 AM |
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quote:
Originally posted by coyoteboy
That is only one tiny corner of my map 
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ashg
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| posted on 17/5/11 at 09:37 AM |
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didn't think electric hairdryer motors need an afr readout
Anything With Tits or Wheels Will cost you MONEY!!
Haynes Roadster (Finished)
Exocet (Finished & Sold)
New Project (Started)
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coyoteboy
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| posted on 17/5/11 at 01:07 PM |
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ouch
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