Datalog : evo3 @ 20psi , 650's, 190, eprom maft and safc2

[CHItown90gst]

Well, since I cannot post in the tuning section yet, I decided to post my log here. Mods are in my profile. SAFC setting are zero'd out because I have a keydriver chip for my EPROM. Maft are set to stock. I see knock in the higher RPM's. I think its because im creeping(stock unported 02 housing). I am also running rich according to my wideband. Whats going on?

Omar

EDIT: I tried using the excel code bit from one of the articles, but I kept on getting linked by some spam crap so I just saved it as a picture.

 

[GVR4592]

How rich does the wideband indicate during wot?

 

[JayRolla]

Turn the boost down to 15psi and start from there. From my experience with the 1g timing and no timing control 20psi is a little too much for the 16g on pump gas. Tune the wbo2 to around a 11.1 afr at 15psi. Slowly turn up boost till you get knock and keep the afr around 11.1. Once you see some knock pull the boost back to where there was no knock. I would guess the most you can get is 16-18psi without knock.

 

[steve]

Omar,
How rich are you running. Remember that the stock fuel maps are about 9.5:1 at WOT which may be richer than your meter can read.

 

[CHItown90gst]

Ah yes. It fluctuates from around 10 or so. Im going to try and lean it out a little and lower the boost to 15. Hopefully It wont creep to bad. I'll post another log later today.