QUOTE(ConeDodger @ Apr 5 2014, 03:51 PM)
QUOTE(Black22 @ Apr 4 2014, 08:11 PM)
I can't tell you how to adjust Djet (I run Ljet), but 11.5 @ idle is pretty rich.
I dis
Idle is rich for a reason. There is no cooling air to cool the heads. These engines are Air and oil cooled.
Those numbers are pretty much spot on, with WOT maybe just a little lean. But, that said, I wouldn't mess with it if it runs well. You spend very little time at WOT...
The theoretical number you seek is 14.7:1. lower is richer, higher is leaner. I hear, you want to move richer with the lead free alcohol blended fuels but not much.
I dis dis
11.5 at idle is washing down cylinders. I agree the fuel helps cool the motor, but that cooling can be done at 13 -13.5.
11.5 is not only rich for idle but WAAAAY rich. My car doesn't even hit 11.5 at any point in the curve!
My set up is 13.9 at idle, 12.5 at WOT and 15.5 max lean during a freeway cruise (basically just enough throttle to maintain speed. My temps max out at 360F during 85mph freeway speeds and as soon as I come to a complete stop at the end of the off ramp I'm at 300F.
All that and 25-28mpg.
I have run it leaner but then head temps creep to 380F. I also got 31mpg!
No way 11.5 is good at idle IMHO. Just a waste of precious fuel.
with your comments on the new fuel, but we have real gas up here. "Clear fuel", so I don't need to compensate for that.