If you have a na engine is it true you run best at stoich? in the middle of the air fuel guage. orange.

 

no.. even at WOT u want rich.

 

https://www.homemadeturbo.com/forum/...;threadid=7330
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stoich is stoich. meaning perfect. don't you think you would want to run right around PERFECT ait/fuel ratio?

 

for fuel economy.. yes


why do dirt bike guys and sled guys tune all the way lean until they ping? does this have something to do with the 2 stroke system?

 

Hmmm...setting my dirt bike to run lean it makes more power, but I have it set a tad rich. The pistons/rings last a lot longer that way. I would rather be a bit slower than cook my engine. I would imagine a 4 stroke motor would be the same under these conditions. I don't ride 4 stroke bikes. :P
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yes. running lean makes more power. 2 stroke less likely to detonate because of oil in the gas?

 

Dunno? I have never worried about my bike detonating. That's weird. I think I have heard 4 stroke bikes pinging and detonate. I wonder what would happen if I poured a couple quarts of Golden Spectra in my car and cranked the boost up to 15 psi?
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Lean/Stoich.. but it doesnt matter, those AF gauges blow *** and are not showing you a true reading of your AF ratio. You need to put it on a wideband. But Johnny is correct, slightly leaner will make a bit more power. When we dyno, I start to pull fuel out on the top end of my fuel maps.