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View Full Version : What AFR do you want to command at Idle?



Loudmouth LS1
January 16th, 2007, 06:49 AM
Right now it's commanding in the 12's and I need to change that and not sure what to change it too, or where exactly to change it, any help would be great, cuz it keeps fouling the plugs!

TAQuickness
January 16th, 2007, 07:55 AM
I command about 13.5:1 at idle. I've heard of others going as lean at 16ish:1

You will want to use the BIDI to adjust commanded fuel and spark to find the combo that yields the best vacuum for your application.

RUTAN TA
January 18th, 2007, 11:36 AM
Just outta curiosity, which table are you refering to?

TAQuickness
January 18th, 2007, 12:35 PM
B3505 or B3647 in COS3 and COS5 (Open Loop Fuel tables)

RUTAN TA
January 18th, 2007, 02:48 PM
I have yet to swap pcm's and try a cos5. damn 98's.

Doc
January 19th, 2007, 01:06 PM
RUTAN TA, don't be afraid to cross over to the dark side.;)