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Wideband A/F gauge

Old 04-19-2007, 10:56 PM
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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. :?
Old 04-20-2007, 12:57 AM
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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?


Ed
Old 04-20-2007, 01:15 AM
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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.
Old 04-20-2007, 06:58 AM
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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..
Old 04-20-2007, 07:22 AM
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Originally Posted by 2000SilverBullet
9 is lean.
16 is rich

Oh oh.
Thought lower is richer?
Old 04-20-2007, 07:44 AM
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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.
Old 04-21-2007, 02:28 AM
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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
Old 04-21-2007, 02:36 AM
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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
Old 04-22-2007, 01:12 AM
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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.
Old 04-22-2007, 01:46 AM
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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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