[Diy_efi] Venturi effect crankcase breather

[Adam Wade]

--- Matt Porritt <porrittm at anet.co.nz> wrote:

> You're bringing other variables into it now.

No, just answering the points you brought up.

> Whats a sports bike, ram fed airbox, European,
> Japanese, modern, classic, moving or stationary?

Hardly matters, except at high speeds.  They pretty
much all have sufficient plenum nowadays to keep
airbox pressure very close to atmospheric.  And of
course, ram-effect airboxes go over atmospheric, as
you know, I am sure.

> I should have stated 'Jap CAR' engines.

Can't speak to "Jap car" engines.Never measured the
airbox pressure on those.  Are you saying that
Japanese cars have insufficuent plenum to provide for
engine demands?  That's some poor engineering there,
if you ask me.

> Are you saying a engine generates no intake vacuum
> relative to atmospheric pressure??

Measured at the plenum?  If it's properly designed, it
should barely register.  Are you suggesting that car
engines have a completely different set of dynamics
from car engines?

=====
| Adam Wade                       1990 Kwak Zephyr 550 (Daphne) |
| "It was like an emergency ward after a great catastrophe; it  |
|   didn't matter what race or class the victims belonged to.   |
|  They were all given the same miracle drug, which was coffee. |
|   The catastrophe in this case, of course, was that the sun   |
|     had come up again."                    -Kurt Vonnegut     |

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