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413 red label non vanos afr is (- - -) 19.0+
Posted: Fri Aug 19, 2016 9:20 pm
by bmwe30m50b31
413 red label non vanos afr is (- - -) 19.0+ Is very rich afr. I can not straighten out. why?
Posted: Wed Aug 24, 2016 11:49 pm
by dusanE30
Hello, you say rich, but AFR 19.0 is lean (too much AIR).
Also you mention 413 DME and non vanos.
Post more information.
Posted: Fri Aug 26, 2016 2:37 am
by bmwe30m50b31
[quote="dusanE30"]Hello, you say rich, but AFR 19.0 is lean (too much AIR).
Also you mention 413 DME and non vanos.
Post more information.
Ie 14.7 norm. 16.0? : / No enriched?[/img]
Posted: Fri Aug 26, 2016 2:59 am
by olafu
For example 14.7kg air and 1kg fuel induces 14.7:1 AFR.
Best power comes about 12.5-13 AFR, if using gasoline.
If your AFR gauge shows 19.00+ AFR and engine still runs, your AFR gauge fails, or your engine misfiring, when unused oxygen gets in exhaust. Unused oxygen causes error to AFR calculation.
Posted: Fri Aug 26, 2016 4:33 am
by bmwe30m50b31
i have
http://www.ebay.com/itm/AEM-30-4110-Wid ... vU&vxp=mtr Works perfectly However shows 17.0+ :/
Candles are black fuel is rich?
Posted: Thu Sep 22, 2016 1:57 pm
by aboutton
Normal aspirated engine AFR :
IDLE 14.7
Cruising 13 to 13.5
Full Throttle 12.5 to 13
Boosted Engines
Idle 14.7
without boost 13 to 13.5
With boost 11.5 to 12 ( to be safe keep it under 12.5 )
Posted: Fri Oct 07, 2016 10:31 pm
by bmwe30m50b31
aboutton wrote:Normal aspirated engine AFR :
IDLE 14.7
Cruising 13 to 13.5
Full Throttle 12.5 to 13
Boosted Engines
Idle 14.7
without boost 13 to 13.5
With boost 11.5 to 12 ( to be safe keep it under 12.5 )
thank you very much