I’ve been arguing with a buddy about larger carbs at altitude for years. It came up again today and I thought I would bounce it off you guys.
He thinks larger carbs make flooding at altitude worse. I think you have to lean the larger carb more, but the bigger bore allows more of our thin air in and can produce a lot of power and help an underpowered saw at elevation. Is my logic flawed?
Maybe I have a poor understanding of carburation in general. Will a larger carb (or a bored carb) put more of anything into the case? Is it only helpful if the original carb was too restrictive?
Back to the altitude stuff, can a larger carb actually create more pressure in the crank case? Or is case pressure basically always ambient when the intake closes?