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| your air/fuel ratio meter of choice? https://www.slantsix.org/forum/viewtopic.php?t=18017 |
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| Author: | rock [ Mon Jun 12, 2006 8:43 am ] |
| Post subject: | your air/fuel ratio meter of choice? |
Folks, I admit it...I have crossed the line to tuning addict status and need an opinion on a gage. Reading all the recurve and tuning stuff on this site (all weekend) plus my return from fuelie status has got me in a serious Edelbrock 500 tinkering mood. I would like a good air/fuel ratio gage but don't know what is a good one or not. If all that are available are digital, well ok, but I like needles. I am visualizing an A/F beside my vacuum gage in a homemade cluster and don't know if A/F gages are electric or "mechanical" but would prefer "mechanical" with plumbing from habit. This is for a '64d100 with lots of engine compatment room, and I am also heading down the fuel injection route next, if that matters. For starters, is Prosport Gage like on ebay 8072262040 the ticket? Thanks guys, rock '64d100 |
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| Author: | Pierre [ Mon Jun 12, 2006 10:46 am ] |
| Post subject: | |
All a/f meters are electrical by nature. An oxygen sensor mounts in the exhaust stream, and gauge wherever you run the wire. Not all gauges come with their own sensor so make sure yours does if you don't have one. The next thing to consider is wether its wideband or narrowband - the typical inexpensive gauges come with narrow band sensors. These can only tell you lean, stoich, or rich reliably. If you want more fine tuning, especially if you want EFI, wideband is the ticket. These meters are accurate to +/- 0.1 A/F ratio. But of course come with a price - The cheapest you'll find the sensor/controller alone is $150 or so. Check out the LC-1 from Innovate Motorsports. (can be had from summit or jegs) This cool toy is fully programmable with two independent outputs - IE, you can set output 1 for 10:1 @ 0v, 20:1 @ 5v to hook up to your efi computer, then output 2 for 10:1 @ 0v and 20:1 @ 1v to match the traditional inexpensive narrowband gauges. That ebay auction doesn't appear to come with the sensor. I'd ask the guy what sort of sensor it was made for (more then likely narrow band). And for digital gauges, the inexpensive ones are not as bright as they should be, making it difficult to read in direct sunlight. Even my $100 dakota digital temp gauge is hard to read in certain angles of sunlight, and that was their model that was made for convertibles. |
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