Well I am normally do my logs/tuning at the track. On my last run out there my 4th gear ranged from 11.2-11.5 on my af/r. Just out of curiosity I decided to go out and do a 4th gear pull to see what my spool-up looked like and to tune the lower parts of the map. To my suprise my af/r was 10-10.6? Why the difference in af/r? Also its showing peak load at 4100rpm's. Shouldn't the stocker be spooling way before that? Thanks for the help guys, Im still getting this stuff figured out.

 

Perhaps you were knocking at got a lower octane value that caused the ecu to run off the low octane map.

or

There is a difference in your engine load caused by boost pressure change, weather etc., that has caused the ecu to read another part of your maps.


Load is not directly related to Spool up, but more where the your afr's are set and how much the IDC increases.

 

Well it might be a combo of stuff then. It was about 20degrees hotter out then before and I was seeing up to 8 counts of knock at peak boost. Im still trying to get out the "blocks of 8" timing that were initially flashed into it.

 

FWIW I was only seeing calculated IDC of 77%. I think it might have kicked into a lower map. Will try to get another run tomorrow.

 

Stock ECU map is programmed to drop octane flag after continuous knock counts of 5, which switches the ecu to the low octane map.

 

Thanks for the help Just out of curiosity, do you know anything about the Boost Enhancement settings? Its set to start at 2500rpms and right there my af/r go from a 13.2 to a 10.9 within a 100rpms. Is this a coincidence or is there something else going on there?

 

Do you have lean spool disabled?

 

Im not sure? I havent but who knows what all was changed when it was flashed originally. What is the easiest way to tell?

 

Look at the "start" and "stop" maps. Should be 2500 and 4531 respectively.

 

Yep, thats right.

I was wondering if the alky kicking in might have something to do with it, its set to start at 12psi.

 

yes that would.

 

I returned your PM with my IM's.

 

Didn't realise u had alky. That has a drastic affect on AFR's and need to be adjusted to suit. If your spray on point is at 12PSI which falls within usually on as stock turbo, 3000RPM take a few...You'll need to lean that area out well.

 

Temp correction changes afrs. Hotter -> richer.