Quote (Lightning GSX, MARCH 31 2004, 12:25 AM)
Air/fuel ratio-Most production vehicles aim for a ~14.7:1 mixture, any leaner or richer and emissions increase rapidly.Best power is usually obtained at about 12 or 13:1.
EGT temps-In my opinion EGT temps are nearly worthless, other than giving you warning of impending engine damage.
Exactly, my point, few individuals on my case about egt's. You got it right. If your running too high egt's, like 14-16, way too hot and you got a bad set-up. I'm making 400whp at just 20psi with puny 20g turbo and my egt only go up to 13 under load. Plenty of guys making way more power with same egt, just bigger turbo.
If I can give my 2 cents worth of advice remember once you start learning about tuning, you cannot just have a big turbo. Another 2/3 of cost for supporting mods and stronger engine to have a good set-up.