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Old 04-19-2007, 11:56 PM   #1
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Default Wideband A/F gauge

Finally had the O2 sensor bung welded in today.

......and yes, while they were at it I had them straighten out that right exhaust tip.

Very impressive Autometer gauge. I also connected a wide open throttle switch....no not for NO2 but it would work with that.......so the gauge will store the value for later recall.

Normally cruises at 14.5 and at WOT I see it hit 9.0

Still have that annoying part throttle stab 10 KR issue but it'* 0 at WOT.
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Old 04-20-2007, 01:57 AM   #2
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9.0:1 Thats pretty rich ... I'm not a expert at tuning but I would think that would be alittle richer then what our cars like to make their best power at. What are you going to do for the part throttle KR?


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Old 04-20-2007, 02:15 AM   #3
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9 is lean.
16 is rich

Oh oh.

If I am not butal with the accelerator pedal at part throttle and ease into it or nail it from a stop, KR is not an issue.
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Old 04-20-2007, 07:58 AM   #4
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Quote:
Originally Posted by 2000SilverBullet
If I am not butal with the accelerator pedal
Like Ed said "What are you going to do about that part throttle issue?"

Coming from a guy that saw 14.9 KR yesterday..that 10 degrees is going to pull back a load of timing long enough to affect power.

And is it me or has the number gone up again? This started as a low 2-3KR, progressed to 5KR, appeared in another thread as 7KR and is now 10KR? Yikes..
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Old 04-20-2007, 08:22 AM   #5
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Quote:
Originally Posted by 2000SilverBullet
9 is lean.
16 is rich

Oh oh.
Thought lower is richer?
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Old 04-20-2007, 08:44 AM   #6
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Correct. Lower is richer. The higher number is the mount of air. The 1 is the amount of fuel.

15:1 is 15 air, 1 fuel. 9.0:1 is 9 air, 1 fuel.
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Old 04-21-2007, 03:28 AM   #7
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Whew, that'* good. So now all I have to do is turn my fuel pressure down until I see about 12.5 - 13.3
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Old 04-21-2007, 03:36 AM   #8
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Quote:
Originally Posted by 2000SilverBullet
Whew, that'* good. So now all I have to do is turn my fuel pressure down until I see about 12.5 - 13.3
Or wire up some spark plugs into your exhaust tips
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Old 04-22-2007, 02:12 AM   #9
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Hey wait a minute

I see why I was confused. In the literature and even manual the gauge face is shown reverse to the colours on the actual gauge.
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Old 04-22-2007, 02:46 AM   #10
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That reverse writing part is for when you are in Canada... it reverts to the normal way when you cross the border.
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