I know tuning via narrowband is not ideal, I fully understand that. This is a basically stock Evo VIII that we just want to tweak the tune so its not so rich. Any idea what a good voltage in evoscan is to use? I saw an old thread about using a pocketlogger but the numbers seem to be different.

Thanks

 

forget narrow band, get a wideband...

if its totally totally stock, then find a map thats been tuned (for a stock car) and you should be ok to use it..

 

Well its stock besides a TBE, I couldnt find any base maps anywhere though...

 

There are vendors on this forum who sell these base maps for a small fee..

 

Ill look into it, thanks!

 

there really is no excuse not to have a wb02 these days now that the price is so cheap compared to years ago. Please tell your friend to come up off the wallet

 

The accurate range for narrow band O2 sensors is the .400v to .800v or the 15.0:1 to 14.2:1 AFR ranges.

Unless you want to run 14.2:1, don't even bother.

 

once upon a time there was no wb02 guys, it can be done on a nb02,...it's just not the preferred method these days and with the wb02 prices so cheap, it's flat out foolish really.

 

I still use my palm'n'stein/palm combo (pocketlogger) and yes, the front O2 voltage readings are different between it and evoscan. I think my pocketlogger gives a better ballpark then evoscan, and that's all it is; a ballpark rich or lean.
I'm one of those guys that started when there was no WBO2's. So I learned to add that to egt's and watching the timing curve to do some tweeks. Add that old school stuff to knock from evoscan and I'm happy.
I know, I know, I should be using a wideband. I acutally have one sitting on my desk.