Fuel injection? Open or Closed loop?

[Ed Wright]

Originally Posted by Darrel Goheen

I'm getting very little correction at WOT. I've tried shutting off closed loop but it barely runs in the pits then so I have to turn it back on. I just need to get that area tuned in OL. So if you go to say Denver would you turn CL back on for a couple passes or just select the whole table and take a percentage of fuel out? Do you save a tune for every track? In CL I think my launch AFR is way messed up because of 2 step. As soon as I launch it adds quite a bit of fuel. Here's my thought at this point and please correct me if I'm wrong. Footbrake a couple passes to get launch area AFR close, turn off CL and get pit area tuned and then slowly adjust AFR according to data log? Racing gets critical now starting with Topeka Nationals.

Since those tracks pretty much have their own row in my fuel table, I run the same tune all the time. I use the FAST logger, play it back while I have the tune I'm running fuel table open, click higher RPM, it highlights the cell it is using. I only tweak that cell. The others are corrected at tracks where the Baro The top 4 rows in my VE table are: 102,98,96,90 KPA. Everywhere I have been uses one of those four rows at WOT. My vertical columns (RPM) are in 500 RPM increments. I never have to screw with my FAST XFI ECU anymore.
I would work on my idle and part throttle. I like my plugs clean.