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Location:
Mackay QLD
Registered:
November 2002
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air fuel ratio meter
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Tue, 29 June 2004 10:30
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Has anyone built and used the jaycar air fuel ratio meter with the leds.Does it work? I just want peace of mind that it doesnt lean out again at high boost rpm?
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Location:
Lost in the K hole
Registered:
May 2002
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Re: air fuel ratio meter
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Tue, 29 June 2004 10:33
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yes it works, and work pretty damn well for what you want (ie dangerously lean mix identification). dont expect to tune your engine by it though...
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Location:
Mackay QLD
Registered:
November 2002
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Re: air fuel ratio meter
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Tue, 29 June 2004 10:45
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do they make a case for it?
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Location:
Melbourne
Registered:
August 2003
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Re: air fuel ratio meter
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Tue, 29 June 2004 12:37
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Nup. You're meant to be a geek; ie. oooh, circuit boards...!
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I Supported Toymods
Location:
Glenmore Park, NSW
Registered:
March 2004
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Location:
Mackay QLD
Registered:
November 2002
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Re: air fuel ratio meter
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Tue, 29 June 2004 20:35
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I had searched and knew what they were and where to get them but just diddnt know if they were any good.
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Location:
Terrigal
Registered:
May 2002
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Re: air fuel ratio meter
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Tue, 29 June 2004 21:56
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If you want a meter accurate enough have a look at Techedge's meters. They are half the price of the big name brand ones and seem to have a good wrap.
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Location:
Mackay QLD
Registered:
November 2002
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Re: air fuel ratio meter
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Wed, 30 June 2004 04:42
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they are expensive.I just want a reliable heads up if the car leanes out.I have the dyno for tuning.
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I Supported Toymods
Location:
Glenmore Park, NSW
Registered:
March 2004
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Re: air fuel ratio meter
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Wed, 30 June 2004 12:19
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| pulcino wrote on Tue, 29 June 2004 20:45 |
do they make a case for it?
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just answering a q
Cheers
Nathan
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Location:
Kita-Ku, Sapporo, Japan
Registered:
January 2003
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Re: air fuel ratio meter
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Wed, 30 June 2004 13:00
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| pulcino wrote on Wed, 30 June 2004 14:42 |
they are expensive.I just want a reliable heads up if the car leanes out.I have the dyno for tuning.
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these will only tell you if you lean out "past stoich"
you may well be dangerously lean before reaching the stoich point..
but yeah, as a rough n ready cheap check... better than nothing.
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Location:
Mackay QLD
Registered:
November 2002
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Re: air fuel ratio meter
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Wed, 30 June 2004 22:14
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To my understanding you have to calibrate the operation why couldnt you make it a little more sensative?
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Location:
Brisbane
Registered:
May 2002
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Re: air fuel ratio meter
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Wed, 30 June 2004 23:08
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Conventional narrow-band EGO sensors can only tell you if the mixture is at stoich, above stoich, or below stoich. This is fine if you're trying to trim the fuel mixtures at cruise for optimum fuel efficiency (that's what they're designed for), but pretty useless for anything else. If you want to know what the fuel mixtures are doing under any other circumstances, you need a wide-band EGO sensor.
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Location:
Mackay QLD
Registered:
November 2002
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Re: air fuel ratio meter
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Thu, 01 July 2004 06:55
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I fully understand all that. I do my tuning on the dyno.All i want is a buzzer or a light that under full boost will tell me if I suffer a lean out. Which is what made me blow the last motor.I dont want to know how lean,what my mixtyres are anything like that just rich stoich or lean. If at full boost it drops even remotely into stoich i can shut down get it to a dyno and check it. sorry a bit frustrated cos i dont think people are getting the gist of what im after.I spent allott of time on the dyno and my motor still blew cos of a freak lean outon the road.
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Location:
Lost in the K hole
Registered:
May 2002
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Re: air fuel ratio meter
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Thu, 01 July 2004 07:01
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| pulcino wrote on Thu, 01 July 2004 16:55 |
sorry a bit frustrated cos i dont think people are getting the gist of what im after.
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| ed_ma61 wrote on Tue, 29 June 2004 20:33 |
yes it works, and work pretty damn well for what you want (ie dangerously lean mix identification)
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others have repeatedly said the same things...where's the problem?
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Location:
Mackay QLD
Registered:
November 2002
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Re: air fuel ratio meter
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Thu, 01 July 2004 07:08
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a little sensative maybe 
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