8-9 degrees @ 6k is right around what mine likes on 91 oct as well.

 

Yeah that's what I was noticing looking back a few pages. Problem is, I run 93oct exclusively. And not cheap stuff, it's almost always shell.

It's still making decent power, but it just seems soft compared to other 93 oct maps, where as it used to be about the same.

I have an extraneous fuel trim issue, but I doubt it effecting this?

 

Blocky smooth lol.

Could make it smoother but I don't care to re-scale my maps atm. The trends should follow some of my favorited maps (thanks guys ) minus mine has less transitional timing do to my shift knock that I was dealing with.

I hit loads up to 315-290

 

did the cat affect your afr at all?

 

My turn. Hopefully not too bad

This is running E90 at 35psi

 

you should turn up the timing a little bit in the 3500-6000 range. Its pretty low

 

In what loads?

 

What's your setup? I see 3 setups in your sig. Your load is scaled way the hell out there so I assume you aren't on stock turbo? Or did you get a new car and start over? I'm running an VIII stock turbo e85 on 28psi. Hitting about 9 degrees at 5500 and ramping up to 18 degrees at 7500. I could probably even run a little more timing, but I'm taking it slow and monitoring the changes with the VD and trying to get as much boost out of this little turbo as I can vs. more timing.

 

Yes, what's the A/F now? Can you put up a log? I'm sure you've been told before, but any reasoning for not using big maps? Would give you more resolution and better chance of sorting out the issues with the tune with smaller increments to work with.

I'd also sort out the problem with the fuel trim issue you mentioned? Probably not related but I'd feel better knowing that didn't have anything to do with it. I always find the issues I have that I think don't matter always end up biting me in the ***. My 2 cents.

 

Its the last one that says current setup. Fp black. In cold weather I hit as high as 390 load.

 

It's impossible to know if this is good or not without a trace of a full pull log to know what cells you're hitting. The only thing that can be judged is the smoothness of the transitions; same applies for everyone else wondering about their timing maps. It would be best to show a trace of the load cells you're hitting and also a trace for a boost log.

 

i dot have current a/f unfortunately. the berk hi flo was so high quality i didnt have a single drill bit that could even put a scratch on it to put a bung on. i havent touched fueling since last year, prior to cat install, by viewing the gauge (not logging) a/f was right where i left it.

as for big maps - right now i feel like more resolution would cause me more headaches than good right now. plus i dont have the time these days to make sure i convert everything properly until im on vacation.

in regards to the fuel trims - i have no idea what it is. car has basically been that way since i bought it. i assumed it was a bad o2 sensor, but i replaced that and it didnt get better. boost profile is as it should be, so my best guess is something little like the injector o rings...but i honestly dont have a clue.

 

Here's a log of my current setup. Any criticism is welcome. Having a little trouble getting the spoolup area dialed in. Note the small knock counts that start around 2800 and then hang around. I'm not sure if I am running it a little too rich by 3000 or if I need to lean it out a little more and transition it better into peak load. Car seems to make most power on VD by tapering to 11.4 - 11.5 around 3500 but the part before is hard to get perfect. I've made small changes up and down and it seems to fix it for a pull but then it will sporadically knock there. I know it just happens sometimes, but it's causing the car to pull a degree of timing in some cases(timing should be 2 degrees at peak load, not 1 in places where timing is pulled).

Also what is the best place to start leaning it out and A/F to shoot for after peak load? The 12.4 at 4200 has since been brought back to 12.1 but should I still have the A/F in high 11's through the 4k range?

Car pulls hard after 4500.

Evo VIII
stock turbo with some mild porting 28-29psi spike
Megan o2 housing
3" TBE
Injen Intake
Injen upper/lower IC pipes
Buschur Street FMIC
mil.spec 65mm tb
1680cc injectors
walbro255
e85
totally stock motor - stock cams
0 boost leaks

Car is around 370/370 on VD

 

I haven't tuned E85 before, but your spoolup area looks a bit too rich to me. I think I'm in mid-low 13's until 8-10 psi or so.

 

so i tried out another map tonight, and got 4 3rd gear pulls

run #1 - no knock (red)
run #2 - 4 count at 6500 and tapering away to redline (blue)
run #3 - no more than a 1 count below 6k then clean (green)
run #4 - same as #3 and basically clean (yellow)

so um...wtf? run 2 has got to be a fluke? the map trace is identical to run #1 from 4500rpm to redline, yet it knocked, requested timing was almost identical also. i created this new map by requesting what it the last map was pulling down too.

provided this graph.


have a track day this weekend...so its gonna get mildly flogged....