protip: series 4 airflow meter tuning
#26
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Join Date: Oct 2009
Location: Davenport IA
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Just tested this on my s4 turbo, with three clicks richer adjustment on the clock spring, it got me roughly from 12.9-13.2 afr under boost down to high 11 - mid 12's range according to my AEM UEGO wideband. seems to like it on 10psi stock turbo and injectors. im thinking it would be fairly safe with colder plugs and an e85 conversion? it did affect my idle afr's from 14.7ish down to 13.5 - 13.0, cruising afr's are still good and lean though
#27
Meat Popsicle
iTrader: (1)
I just did 6 clicks on my half bridge, richened it right up
Got rid of my part throttle stumble and my 3k rpm lean spot( or so it feels)
Seems like I got a pretty smooth running STOCK ECU half bridge
Hooray me!
I'll dyno this summer once I get a wide band since our dyno here in town doesn't seem to have afr or egt.
Stupid diesels just chasing numbers where I'm from
Got rid of my part throttle stumble and my 3k rpm lean spot( or so it feels)
Seems like I got a pretty smooth running STOCK ECU half bridge
Hooray me!
I'll dyno this summer once I get a wide band since our dyno here in town doesn't seem to have afr or egt.
Stupid diesels just chasing numbers where I'm from