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View Full Version : Air/Fuel Ratio Gauge Question



SimpleGreen
06-02-2009, 09:26 PM
Hey guys, Im considering putting a few gauges in my truck. Fuel PSI, Vacuum, and air/fuel ratio. I know everything I need to know about the first two, but I have a relatively easy question on the third.

I was looking at this one by Stewart Warner (matches the other two gauges I want).

http://store.summitracing.com/partdetail.asp?autofilter=1&part=SWW-114900&N=700+4294925228+4294925227+4294822101+4294908392+ 400827+115&autoview=sku

I know they have these, and they have the ones that give you a literal readout (like say 13:1). Is there any big advantage of one over the other? I obviously know one is telling you straight up, and one is sort of like an idiot light, but Im just looking for something to give me some general feedback without paying out the ass (I noticed the nice digital ones are like $270+).

If used in conjunction with a wide band O2 sensor, would the one I linked be sufficiently useful?

Also, is there any sort of recommended wide band O2? Do I need to order one from Summit, or is there one of some sort a local auto parts place would carry?

Thanks guys.

foreverfalcon40
06-04-2009, 10:17 AM
PLEASE ONLY PUT A VAC Gauge if you have F/I!

If you N/A I'd go with...

1) N/B A/F
2) Volts (Digi)
3) Oil Temp or Egt.

W/B not necessary for a N/A motor.