If you dont have the tools to monitor any or all of these, its in my best opinion to either save up for them, or dont run high boost until you do. Tuning off of the stock o2 sensor is just too inaccurate. Going from only several hundreths of a volt(eg .92-94)could mean running a 12:1 AFR, ro a a 13:1 AFR..its just not accurate enough in the rich range to give you a reading you can be confident on. EGT tuning can be tricky also. There are many other vaiables that can cause a high EGT other than running to lean..
Your best bet is to get on a dyno with a wideband, or fork over the cash for an incar wideband. Also, a pocketlogger or a laptop datalogger is a must have item also. After using my AEM wideband, i dont know how i ever tuned without it..I just used to tune to EGT pretty much, but that was never very accurate. If you want to be in the 13+ psi club, then get the mentioned tools to tune with, or do your tuning on a dyno. Don't forget to use your other "free" tools either, you EARS. Listening for the motor detonaing or misfiring, ect..sometimes can be the best tool ever Although you need to know what they sound like at the same time, for it to be of any use.
13.5 @108 MPH-2.2 60ft(stupid FWD!) S16G @ 18 PSI/FMIC/Running on MegaSquirt II (Now with sequential fuel injection) My webpage: http://eclipsed4evr.home.comcast.net -1998 Mitsubishi Eclipse RS-T- "Toy" -1992 Plymouth Laser Turbo AWD(SOLD) -2000 Honda CR-V(daily)
Although you need to know what they sound like at the same time, for it to be of any use.
