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Air/fuel guage-O2 recommendations?

2K views 19 replies 9 participants last post by  fasterthanu 
#1 ·
Sending my exhaust to have the bung welded in tomorrow. I wanted to mount a permanent guage in the boat, but I can't find one that matches my white Livorsi guages. Soo......sounds like the portable one might work:mad:

I read the other O2 thread, and it sounds like the innovate motorsports one is the best portable one.

Any hot tips, or recommendations before I whip it out?(the credit card)
 
#6 ·
guess i better stick with my a/f gauge then, it uses the cheaper o2, not as effective as wideband but its good indicator of what's goin on, easy to tune a carb by. thanx for the info!
 
#7 ·
Just remember that the 3-wire sensors are narrow-band and very quickly lose accuracy as you move away from stoich in either direction. So, if you're trying to tune a forced induction setup at 11.7:1 for example, it won't be nearly as accurate as a wideband in the same application.
 
#8 ·
yeah, i had to replace 1 last season when i got realllllly lean. price wasn't bad, 42 bucks for a new sensor. i've got bungs in each header but only run 1 full time, when i tune, i stick the other in and just switch connections to take a look at the other bank.
 
#12 ·
The autometer setup comes with the standard 5-wire Bosch wideband sensor. The gauge has all the heater controls built into it, so it's a stand-alone wideband setup. It has scaleable outputs that can be used to connect to either a data logger, or a wideband input to an ECM for closed loop control. There are 3 different styles that have white faces and would look nice with the white Gaffrigs or whatever. I haven't installed/tested mine yet, so I can't comment on how well it works.
 
#19 ·
Since we are on the topic.
Can you run "Unleaded Racefuel" and still use an 02 sensor? I would love to have on for tunning but dont want false readings.



S[itter
 
#20 · (Edited)
Since we are on the topic.
Can you run "Unleaded Racefuel" and still use an 02 sensor? I would love to have on for tunning but dont want false readings.



S[itter
From what I understand the lead is what kills the sensor in shorter order than unleaded. Atleast the Bosch sensors I have used are for unleaded fuel. NGk says 50hrs on lead 500 plus on unlead....

fu
 
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