Fuel Economy, Hypermiling, EcoModding News and Forum - EcoModder.com - View Single Post

ever_green · 10-08-2014, 10:24 PM

leanburn was not the purpose of this thread but in any case I rather run leaner and produce more nox than go richer and produce more CO2, HC and CO, one leads to global warming and the other is highly toxic. nox is just a visible gas which is why epa has gone so mental about it. otherwise its no where near as toxic as other emissions. PLUS lean conditions such as 17+AFR create less nox than at stoich.

also after checking my wideband / data-logs, it seems i'm running more in the 17.5:1 range due to maf and o2 sensor scaling being off on the lean side. I could go leaner but I will need more timing to prevent surging and unfortunately I cannot get any more than 50* BTDC.

10-08-2014, 10:24 PM	#38 (permalink)
ever_green Master EcoModder Join Date: May 2011 Location: Toronto Posts: 264 gueff - '19 Mercedes Benz A250 4MATIC AMG 90 day: 30.55 mpg (US) Thanks: 8 Thanked 79 Times in 33 Posts	leanburn was not the purpose of this thread but in any case I rather run leaner and produce more nox than go richer and produce more CO2, HC and CO, one leads to global warming and the other is highly toxic. nox is just a visible gas which is why epa has gone so mental about it. otherwise its no where near as toxic as other emissions. PLUS lean conditions such as 17+AFR create less nox than at stoich. also after checking my wideband / data-logs, it seems i'm running more in the 17.5:1 range due to maf and o2 sensor scaling being off on the lean side. I could go leaner but I will need more timing to prevent surging and unfortunately I cannot get any more than 50* BTDC.