Buwhahaha. I hate closed loop. Installed 60# injectors couple weeks back. I really haven't had time to look at anything closely since installing them. Basically loaded the new injector values and enabled LTFT's and have just cruised a little bit back and forth to a couple shows.

Last night on the way back from a cruise in, I opened her up for a long pull for the first time. Pullled well, the AFR went "Hey I'm Rich" Even saw it in the exhaust. The PLX won't read south of 10.1:1

I suspect LTFT's on top of a strong methanol pump are the culprit. Anyway this morning I loaded up the complete OL SD tune without my hack for the methanol in the VE. Time to turn off the methanol and go do some VE tuning. Technically I shouldn't have to tune it much if any but we will see. I started it up and idled it for about 5 minutes. At least at idle the AFR fell to within 1% in CLSD.

Here is what the log from the ride looked like.

 

damn i thought you won the lottery and was gonna share with that title..btw your too rich

 

the screen shot is OLSD with no meth?

 

No the screen shot is CLSD with meth. Flatest WOT AFR I've logged in a long while

 

Well I put the truck in complete open loop yesterday and cleared the LTFT's. Wish I had logged what the LTFT's were but didn't. Started it up and she was way lean at idle. Revved it up a little and let it settle, lean there also. I just shut it down because I didn't have time to play with it.

Later in the evening I did some more research. My VE was pretty close before the injectors so I suspect the injector values. Probably offsets that need to be tweaked. I had also put in flow rate of 69.3 for the injectors based upon new static data posted on Racetronix website. Static flow of 60.56 lb/hr. Then got to reading the fine print that the new rate was based upon some type of non-gasoline fluid and that gas would flow another 3-4% so I'm bumping the IFR back up to the 72.3 but this will only make things worse.

Anyway..... any of you guys running the 60#'ers care to share your tune or injector data as a sanity check?

 

Just double checking things. I used to read 52psi WOT, lately only 45 or so. I laid it off to the gauge because nothing had drastically changed with the AFR. Double checked it today something is going on with the gauge.





I am also going to work on getting the should be 55-62 psi I should have. Replacing the fuel filter and will probably wind up adjusting the FPR. The truck has always run just fine at 52psi. Guess I could set my IFR for a 52psi fule pressure?

 

You got me ALL sidetracked with the I personally (as I get ready to post in my voltage fubar thread) have found .57 at 13.5 volts to be pretty damn good. Ofcourse, I have no data to prove or show for that. Once I figure out my voltage drop issue, if I had the electrical items to get me to specific set voltages I'd like to see what works for each voltage step in the offset. But I do know that .57 even maybe a little less like .549. I am GUESSING if you every need to use 13 volts, .7ish.

fuel pressure deal...your gauge is electric I take it...5 volt sender?

 

Sorry about the 60.56 thing. There for a while I thought I was privy to some super info that most had missed. I remember reading somewhere not long ago that they had updated the data. Then noticed the note at the bottom of the page.

The gauge is electric. Pisses me off that it isn't reading correctly. I have a mail into Autometer to see if it can be calibrated.

Tonight I put my IFR to the flow rate for my 52psi fuel rail pressure and logged idle for a bit. Verified STFT and LTFT's were 0. Plugged in some new IDLE airflow numbers and things fell fairly close while in Park. Went about a point lean in drive. 13.2V at idle. 13.5 line at .458.

Multiplied the entire offset table by 10% and it fell in closer at idle in drive and park. This put the 13.5 @ .504... so I see .57 being close.

I'll play again tomorrow but damnit I didn't want to have to do this

 

LOL...wait til you drive...LOL I think you'll find tuning the 60's in at idle AND p/t is pretty hairy, that offset table will make you think you can nail it down btu then you'll get close and then slide further away.

I actually like .55 at 13.5 volt's but with my voltage issues i keep messing with it. I bet it's somewhere in there.

 

I'm not going to pull my hair out with this thing by trying to get it spot on everywhere in OL. The problem with doing your own tuning is it can drive the OC personality crazy I think my plan is getting it back to within 5% OL with WOT much better and then turn on STFT's and drive.

Thanks for the help!