Quote:
Originally Posted by Ecky
All of the car's computers need to reboot, and then you need to clear the CEL. It wouldn't be a simple switch, but rather a process that takes several minutes and is multi-step. Anyhow, once the battery is that bad, the regen is necessary to have the energy for auto-stop. We're talking the final weeks of a battery's life before it does nothing, not months or years.
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But didn't you used to have a calpod switch that controlled the IMA being on and off? Or maybe that was Natalya.
Quote:
Originally Posted by Ecky
Yeah, if you lean out by 33% (14:1 to 21:1), you also lose 33% of your power. You're burning 33% less fuel, after all. It's not free fuel saved. It's only useful if you are only running part throttle in a given gear, leaning out let's you run a wider throttle opening and save a small amount by making less vacuum. It might also affect BSFC, but measuring that would be very difficult.
Lean burn would be nearly pointless on a Prius, for instance, because it has effectively infinite gearing. You just slow the engine down more, or toggle it on and off.
There are a few other subtleties where it's useful, like allowing an engine to actually run at a higher rpm at WOT and make the same power - sometimes this is useful, but it's not really low hanging fruit.
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Ah, makes sense about less power.
About the Prius comparison though, are you saying that the Insight's ECU controls how lean it runs based on engine load?
Quote:
Originally Posted by Ecky
Yep, he had no lean burn for a long time.
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Not going to run 120 PSI in my tires for that though...60 PSI is good enough.