I just implemented this timing map from 0 load - 180 except the idle area. (my idle is perfect w/ 7's) did some logging today on the way to work... Only saw a few areas that needed some attention. 3500 I saw (2 seperate occasions) 5 counts and 8 counts so I took out 2* there (100%tps) and @ 2300 I saw 3 counts (100%tps)so I pulled 1* out. I did see a 9 count of knock @ 2500 (lift off) ( this was in 5th on the freeway) I was cruising, then punching it, cruising then punching it.
I will do some more logging to work it out, but was a great start for me...

cheers to every1 making this the most informative forum. You guys know who you are! And a direct thanks to MRFRED/ and to all for posting their maps! I would post my "before" but its very similar to most. I'll post the new one up when Im done w/ it.

 

Ok did some logging on the way home... While cruising, 0 knock! I need to do a lil more logging to confirm, but so far so good! I did notice that in my logs I was actually hitting 41* on occasion. I will play some more...

 

On my stock rom I will hit 40-41* when the EGR system engages so 41* isn't abnormal at all.

 

here is my e85timing map for those interested sense were sharing them here

 

Do you see any knock during cruise, say at 2000-3000 rpm, loads 50-100?

 

i dont see any know at all during cruise. the only ti,e i see knock is the 1 count i get in the middle of these hot california days when im at 100% throttle 3000-4000prm after spool up im not sure y i get this but its never consistant. and besides that im good.

i got a cel for a random cylinder misfire but i think thats because i set my idle part of mivec into the 30's and i believe i red somewhere that doing that will cause thats cel light to trigger :-( im going to look threw some threads and see if thats the case but my logs show nothing but perfectness

 

I got my ECU closed loop under control. Now, I cruise in open loop at ~15.6:1 AFR. I also advanced the timing in the cruise load cells. My timing is now ~39*

I tested the set-up at low speeds on surface streets and at cruising between 60 and 70 mph and all is kosher.

Here are the AFR and Timing graphs. The tables are for 40 minutes of cruising to work:




And here are the rom tables:



The only thing that I could not get to work, is get the car to idle at 15.xx:1. I tried setting the tables below the load and throttle % that I logged at idle and it did not work.

But the most important thing is that at cruise I am hitting 15.5-15.7:1 and the timing is advanced by 3* from stock in the cruise cells.

I have tested the set-up last night and today on my way to and from work.

One interesting note, the trims LTFT (mid and lo) and STFT stopped working when I did this. They did not change at all. So I flashed the car back to the stock load/throttle tables and the trims started moving again.

I have a full gas tank and will test the impact on fuel economy. I got 26.2 mpg on my last tank w/o any boost and not revving past 3000 rpm.

 

NJ1266

I never could figure out what the two openloop load maps do. Set them both to zero, top to bottom, doesn't make any difference.
As to why you're not getting the afr at idle, strange, that has worked for me at just about any map load setting. As a last resort try leaning out your fuel map a lot more from 0 to 30, up to around 1500 rpm.

One little fly in the ointment, there was an intermittent afr swing to rich during cruise.
I think I killed it by lowering my accel enrichment values. Might be something there for your idle too.

The dead fuel trims are a bonus.

 

Post up the timing map as well. Just curious to see what it looks like in and around the cruise cells.

26 mpg is pretty impressive. I thought I was doing good with the 20-21 mpg (city) I'm getting with my current pump gas setup. I figure I could get another 1-2 mpg when I lean out the afr by 1 point to 15.6, but that's still nowhere near 26 mpg. Can you post up your current MIVEC map as well?

 

Well yea, you aren't cruising in closed loop anymore.

I'm getting my cruising tune pretty tight now.

Cruise at around 15.6-15.7 AFR and 41-43* of timing.

 

i happened to notice adding this to a friends map who has 264/272 cams that he saw dramatic effects in gas consumption, a drastic change from his previous tune, apparently his timing adjustments are what made the biggest difference which now allows him to stay at around 5psi of vacuum and accelerate pretty impressively i actually surprized myself, hes around 39* but so am i and his car took to it better, possibly cause of the cams not sure i gotta log airflow and see whats up but his car is getting about 22mpg

 

Is this on 91 or 100? If 91, can you post up the relevant tables?

 

100 on my personal Evo. I still have some room in it.

I am using another evo as a test too, have him running at 15.5 AFR, 40-41*, on 91 octane:

 

Is that 40-41* in the timing map or observed in EvoScan?

 

Logged in evoscan (plot above) and 38* in timing map +3* EGR advancement