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| Narrow Band AFR https://slantsix.org/forum/viewtopic.php?t=52414 |
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| Author: | RyGuyTooDry [ Wed Jun 19, 2013 5:27 pm ] |
| Post subject: | Narrow Band AFR |
Can you tune with a narrow band? Or does it absolutely have to be a wideband? |
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| Author: | DusterIdiot [ Wed Jun 19, 2013 5:46 pm ] |
| Post subject: | Yes and no... |
Naturally Aspirated Carburated engine "roughing in the settings and tuning" = yes Boosted, EFI, etc... = No (Although Ehrenberg did write in one article that you could tune the EFI setup on the wideband, then save the $$$ by letting it run on a narrow band...I think that was somewhat optimistic for long term use and was not a boosted engine). -D.Idiot |
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| Author: | Matt Cramer [ Mon Jun 24, 2013 7:27 am ] |
| Post subject: | |
Narrow bands behave like an on/off switch. They switch on above 14.7:1 and off below that. Great if you're trying to hit 14.7:1 on the nose, not terribly useful for any other air/fuel ratio. And you typically want to hit a much richer air/fuel ratio under boost. |
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| Author: | robertob [ Mon Jun 24, 2013 10:29 am ] |
| Post subject: | |
Not useful at all. Before widebands I tuned a couple of engines using a nb sensor, but it is basically impossible. You can set a good idle and cruise mixture but otherwise no. |
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