Just thought I would share the before and after. Same Map, Same Boost

Before



3rd Gear

3562.5 12.7
3750 11.9
3875 11.5
4000 11.5
4125 11.5
4312.5 11.4
4531.25 11.4
4656.25 11.3
4812.5 11.3
4937.5 11.3
5125 11.3
5250 11.3
5375 11.3
5531.25 11.4
5687.5 11.3
5812.5 11.3
5968.75 11.3
6156.25 11.3
6375 11.4
6500 11.4
6562.5 11.4
6687.5 11.3
6843.75 11.2
6937.5 11.1
7062.5 11.1


After

3187.5 12
3281.25 11.7
3406.25 11.5
3562.5 10.9
3687.5 10.4
3812.5 10.3
3937.5 10.3
4093.75 10.4
4281.25 10.4
4500 10.4
4687.5 10.4
4812.5 10.4
4937.5 10.5
5093.75 10.5
5218.75 10.5
5437.5 10.5
5593.75 10.6
5781.25 10.7
5906.25 10.7



I had to let off at 6k on that last run.

Its alot easier to get all

 

Interesting. Thanks.

 

This really doesn't tell me much.... am I missing something?

 

Basically it removes one variable and keeps the map a little simpler to work with because all the target AFRs will be the same from 3500-redline instead of just to 6K and then it changes. You can also fine tune tip in AFR change 10.9 vs 12.7.

 

I've been looking into this as well (requested by Dr Banks). The above is at WOT, how would you control all the other values when not in WOT, would decrease the whole map by 1 whole value then fine tune WOT?

Also, did you do a run in 4th and perhaps 5th to confirm whether higher the gears=more fuel?

Cheers!

 

Yes it went well richer in every single gear. My entire fuel map now after ive adjusted it looks more consistent.

I removed fuel at 3500 rpm and added more fuel after 6000rpm after disabling lean spool. Now everything in the map is no more than 1 AFR apart.

 

My experience has shown that it isn't necessarily gear dependant. It seems to be time at WOT dependant. I wonder if there is an offset that accumulates corresponding to time at WOT?

 

With lean spool, my car was knocking at the drag when the temp and condition are less than ideal (it was perfect when dynoed tuning and I used EvoScan). By removing it (i.e. added more fuel) it's not knocking and run better.

 

This is awesome. Now how do you disable leanspool.

 

depends on what rom ur using ^

 

After my eflash a week ago , I was seeing 11 counts of knock. Then I added 2 byte load + lean spool for dummies and logged some runs for the tuner. The knock count went down to 1's and 2's. I have been trying to figure out why and have not heard back from the tuner.

 

More than likely becuase you dumped more fuel into the cylinder^

 

Disabling lean spool gets rid of more fuel=higher gears. Better for tuning AFR. When disabling lean spool the AFR increases by 1 ie.11=10. Simply change cells by 1. Should one do this for the whole fuel map? ie. Select all, decrease whole map by 1?

Any one?

 

I had similar results to the OP when I disabled the lean spool on my Evo 8. Here are the numbers averaged for two runs before and two runs after

Before



After

 

no unfortunetly it's not that simple. By disabling the lean-spool function we are doing something significant internally. what, I don't know.

I have tried that approach, but I could never get any real consistancy in my target AFRs and the car would always go pig rich on the top end despite my best efforts.

by disabling the lean spool, it made tuning my AFR values a very easy task.