18psi

iTrader: (76)

So here's a question for you that will also benefit OP if you have the answer:

does "more AE" help speed up the throttle in response to your pedal blip, or does "less AE"?

I've been seeing some really really weird things when experimenting with this. It's a response-system so its never quite fast enough to eliminate the split-second lean spike upon throttle stab, however I can see it going both ways:
when too much ae, you stab throttle and the car bogs cause its overcompensating
when too little, you stab throttle and the car bogs cause it's leaning out

ihiryu

Okay so here's my original map

Original


And this is me trying to smooth it out.


3D


What do you think?

I don't understand why I have the bulge at redline closer to the middle of the map. I honestly don't think I ever hit that part of the map. Generally when I'm cruising, it's at max of 3500 RPMs. And of course when I'm getting on it, I'm at the upper right.

So far what I've learned is that you're NEVER in the upper left, and seldom on the lower right.

deezums

iTrader: (3)

That looks like a damn mountain range, how do you expect that to ever run smoothly?

This is my map. I can turn AE off completely and hardly tell a difference.

ihiryu

Awesome, more cleaning up to do.

Thanks. Sorry it's my first time tuning. I'm using VEAL, and then making small adjustments. It's good to see another example. I'll try to clean it up more than.

ihiryu

How's this one look?
Tell me if I'm wrong, I pretty much took the main points of the graphs (parts that I knew VEAL touched) and just smooth them out between each other. All I did was smooth out the transitions. Wherever there were big jumps, I just based them from the columns around it, and got somewhat of an average.

deezums

iTrader: (3)

Yes, that is more or less the point. If you change VEAL's cell change resistance once you get it close it won't generate such rough maps.

If you do not have enough AE, VEAL will want to add a ton of fuel to the top left (lowRPM/highMAP), the opposite will do the opposite, but to a much lesser extent.

You might want to look into overun as well, VEAL can't tune transitions in and out of fuel cut very well. I'm pretty aggressive on my cut and return. If low MAP cells are off it will kick like a horse, or buck like a bull I should say.

ihiryu

I turned off overrun fuel all together, and still the same results.

So I have both AE, and ORF disabled, and it still does it.

The thing is, is that it does it any ANY rpm load. If I go to change the throttle input, it just goes lean for a second, then it goes rich.

Grr.

AE

18psi

iTrader: (76)

is your tps calibrated?

ihiryu

Yes sir.

I did it like four times to be sure.

nitrodann

I have always had the exact same issue and I'd like a fix.

Incompletely agree with op. Initial low rpm stab always results in a lean patch. I usually cheat by richening the cells immediately above and to the right of idle.

richyvrlimited

iTrader: (1)

nitrodann, that's not cheating, that's tuning it properly.

I always tune AE by not tuning it, as in doing exactly as you state, set the VE table so that the car behaves properly with throttle blips off idle.

Then is any further fuel is required add a bit of AE.

Done properly you shouldn't need much AE at all really.

ihiryu

The thing is, is that it happens everywhere for me.

Anywhere I add throttle it does it, low end, high end. Anywhere.

I've turned off Over Run Fuel, and AE completely, it it does the same thing. I've fiddleda little with AE, and now it doesn't do it under low loads, but causes a weird over rich state when I go back to cruise

I.E. Driving 30 MPH, go WOT to about 50, but when you ease on the throttle to maintain speed, it causes an overrich condition, and then it'll settle back on it's own.