air fuel ratio
11-11-02, 08:59 PM
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air fuel ratio
ok i ahve a 88 turbo II with:
s5 turbo
racing beat turbo back exhuast
Hks filter with Tid mod
turbo xs bov
and im running about 10 -13 psi
and my apexi autotimer said my a/f os 12.2 at 100 miles per hour, is that too lean?
i have a walbro 255 on the way.
then injectors but i dont have an safc yet
s5 turbo
racing beat turbo back exhuast
Hks filter with Tid mod
turbo xs bov
and im running about 10 -13 psi
and my apexi autotimer said my a/f os 12.2 at 100 miles per hour, is that too lean?
i have a walbro 255 on the way.
then injectors but i dont have an safc yet
11-11-02, 10:33 PM
#2
Well that depends.
Was it 100mph at WOT with full boost. Then yes. You want an AFR of 11.4 or so under full boost. But I doubt that 12.2 is putting you in any danger zone.
But if that is cruising at 100mp with no boost, then its fine. Really your low load/cruising rpm AFR's can be a lot leaner (ie 14.7:1)...
Was it 100mph at WOT with full boost. Then yes. You want an AFR of 11.4 or so under full boost. But I doubt that 12.2 is putting you in any danger zone.
But if that is cruising at 100mp with no boost, then its fine. Really your low load/cruising rpm AFR's can be a lot leaner (ie 14.7:1)...
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