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By soviet_merlin · Posted
So you had a car that by all accounts drove well and survived track days, and that was looking great after months of being stuck at a paint shop. Some might call that a finished project. But you decided this is not quite right. So now the car does not run anymore. And the engine doesn't fit anymore. And the body parts don't match anymore. But, this is progress somehow. Greg, I think your subconscious does not like you and does not want you to drive this car. (I know I know, this whole escalation was not intended, but man, what a rollercoaster) -
Yeah, but the narrowband is truly narrowband. So you take it out of the linear zone and it is effectively nonsense. And that linear zone is so literally narrow, that nonsense is not very far away. Unless they are flicking back and forth across the stoich point, for real, under actual control, they can't be trusted for anything except entertainment value. -
I agree, and yet my "HRM " hat is also on, as his wideband is in disagreement with the narrowband where they used to play closer attention to each other. -
That's the thing. Especially at idle, changing the cam angle by that much could be spewing more fuel out the exhaust courtesy of everything happening that bit later. More fuel also means more air (if the fuel didn't burn, then neither did the O2) and so the O2 sensors can start to tell interesting but misleading stories. And the specifics of what is happening could easily be affected by everything else you changed as well. And it could be dynamic, where a few revs more or less could somewhat change how the engine is breathing.
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