I'm at 11.3 AFR

 

Ok.. as promised here are my logs from tonight. I found it best to use a variant of the leanspool map that tephra posted (thanks for getting me off to a great start ). Anyway I am using my timing map from Mellon with no changes just a new fueling map and as you can see the AFR is about as smooth as I can get it. It sits right at 11.2.5-3. The car seems to like it a little richer than 11.5. I am seeing 16* advance by 7100 rpm with no knock at all throughout the entire run. I am also posting a log from a pull through the gears. As you can see the AFR curve is nearly identical each shift! This mod rocks!!! The car pulls so much harder and each pull is identical!

 

So I took a look at my start and stop antilag settings and it looks like the tuner changed the stop to 7844. Can someone tell me the reason for this? I'm looking to change the start and stop numbers to 1500 and 1531 like tephra says, then logging and leaning out the fuel map. Anything else I'm missing?

 

wow, looks great. I want to try this for better Mpg's..

 

Can you point me to the tephra leanspool fuel map? Thanks

 

It was under a thread called lets see your leanspool maps.. Be aware however that it was extremely lean on my car 12.7:1.. I had to richen it up quite a bit and smooth it back out.

 

yeah dont just copy anyones maps, use them as a reference and education point...

every car is different, and what is ok for one car may not be for another..

 

But your map worked out very nicely with a few tweaks.. I ran the car tonight and with a sub par 3-4 shift ran 12.3@110.5..

 

wonderfull thread, learned a lot again...

 

Scanned this briefly for 96530006...

Do we have a lean spool enable/disable? Is it the same as 96940011?

None of these work. They all come up 204 / 204 or some other non rpm resembling gibberish.



Any one have a way to kill it for sure on this rom?

Found it. 1680/1684

 

Can lean spool also be disabled through a periphery bit? I have been reading and saw a few threads where it is mentioned, but in this thread a few people have said that this method is the only effective way? Which way is better or does it not matter?

 

For evo8s i found the instructions pretty confusing. There's a huge list of things u need to add to the XML which doesn't really explain what to do and its unneccesary.
Following the instructions for option 2 for evo9s(Start RPM address 1280, Stop RPM address change from 1282 to 1284), i figured you just added 2 to the memory address, only for evo8s the values start at 1680 instead of 1280. You cannot disable lean spool with just changing the stop RPM to 2500 as a lot of people mention and I believe they said to not do it if your value does not read 7000.

You have to change the memory address for the stop RPM to 1684. Normally in ECUflash the address for anti lag stop RPM points to 1682, which will read 4531 at default(Dunno what this value is for). After changing the address to 1684, the value should read 7000, which I then decreased to 2500.

 

This is the one for 8s https://www.evolutionm.net/forums/sh...hlight=dummies ...

 

That's 2 byte load not lean spool

 

I understand that the general reason to turn off lean spool is to get more consistent and thus tunable AFRs. I also noticed that a lot of people also like the less spiky boost response during spool up.

But what I've been wondering is why not adjust lean spool RPM such that it only happens where we aren't quiet worried about AFR yet and where boost tends to struggle the most to build. I am thinking allow lean spool up to about 3500 rpm. That way you get the faster spool in cases where you might not want to downshift but then after 3500 spool-up isn't too fsat to overshoot and AFRs aren't impacted.

Thoughts?