Keithg wrote:
1) make EAE swing faster vs slower
Increase the number of squirts is the first thing that comes to mind. How fast or slow it reacts depends on this, because it only adds and subtracts from the walls once per squirt.
2) make the size of the puddle shrink or grow
Bench testing would help you a lot here. Basically, increasing added to walls, or decreasing sucked from walls will make the puddle grow, and make the response slower. Any time you make the curves further apart, you get this effect. The curves aren't on the same scale because the amount you're squirting in ms is much lower than the total number of ms worth of fuel that is on the wall... a low percent of a high value matches a high percent of a low value. Added to walls is a percentage of a single squirt, but sucked from walls is a percentage of wallfuel.
This is on a turbo 2.0L 16V engine. You'd think that with 16V, low RPM would have lower velocity and less fuel would be sucked from walls and less AWC would be needed to feed the puddle, but I have not figured out how to get this to play nice.
Lower velocity means less sucked from walls, and possibly more added.
I'll look at Peter's MSQ and see what his curves look like. Anyone have a turbo set of curves they'd like to post (for EAE that is tuned pretty close)? Is anyone successfully running this on a similar engine to mine: medium disp 4 cyl turbo 16V (or 20V)?
I know this can be tuned, but I just cannot seem to eradicate the dropped throttle leanout. 40-120kpa accels were fine at 2krpm 80 to 30 kpa decels also looked fine. It was the gearchange that messed things up. If O2 correction could be turned off <30kpa, I am sure mine would act much better, at least until I get this tuned. Grrr!
KeithG
Dropped throttle leanout means there is way less fuel coming out of the walls than you have tuned. Lowering sucked from walls would probably fix this in those areas.
Also, I'm assuming that you're talking about when you're on boost... do your EAE curves go into boost? If not, then there is something going on in the puddle that you're not representing in your curve, which could have an effect too.
Ken