A/F ratio curve

[BlitZ]

Is it possible to get a nice flat air/ratio curve.. say within .5 all the way?

If so any pics of a curve from a dyno?

[Tu88y]

anything is possible

[EfiOz]

Yep, it should be within .01 all the way. We use an error to target value of .008 when mapping in self learn mode and it gets their pretty easy.

[pornstar]

What pat means is, if the ecu is up to it

[BlitZ]

within that close to the target curve, of course. If the OP is talking about getting a perfectly flat A/F curve in many (most?) cases that wouldn't be optimal

YES... that lead to my next question... would that be optimal??

Cuase i see that running abit richer lower makes more power...

can someone explain to me the concept.. i thought that if its optimal its optimal.

[EfiOz]

within that close to the target curve, of course. If the OP is talking about getting a perfectly flat A/F curve in many (most?) cases that wouldn't be optimal

Interesting concept. What do you base that on?

[ProECU]

within that close to the target curve, of course. If the OP is talking about getting a perfectly flat A/F curve in many (most?) cases that wouldn't be optimal

depends how you define the "Target Curve".

More important than a flat a/f curve is the transition of the fuel/ign values from each adjacent cell. You dont want a table that looks like the rocky mountains.

[ProECU]

Yep, it should be within .01 all the way. We use an error to target value of .008 when mapping in self learn mode and it gets their pretty easy.

easy in a static load situation, too many variables to consider when ramping, hence my above comment RE Transitioning from adjacent cells.

[EfiOz]

We can achieve this dynamically. I agree that by flat it should be free of transient spikes between load sites.

But why would you say "Lambda Curve"?

[EfiOz]

Ah, OK. I was assuming your talking at constant load.

[EfiOz]

Which would be constant load.

[EfiOz]

LOL, I've been doing too many quads lately and not enough turbo's.