Originally Posted By: FetchFar
Originally Posted By: SteveSRT8
The problem with any DI engine is the manifold is a "dry" design.
It is not intended for the even distribution of any liquids.
Expect uneven distribution and perhaps even puddling or damages...
Wrong. Anybody knows a liquid evaporates, some immediately as it hits the airstream, and whatever might settle at first will quickly change state. I really thought this was common knowledge, you surprise everyone.
So any liquid, MMO, Lucas UCL etc. WILL evaporate in a manifold ?
New science to me, as I always thought that stuff like boiling point, vapor pressure latent heat, turbulence and available heat had something to do with what, and what percentage of it evaporates (in an intake manifold)
As usual, I've learned some more unique science from you FetchFar
Thank you
I wish that you'd have explained this to the gasoline that pooled in the bottom of my engineering thesis, it would have been way easier measuring the fuel film velocity when all I had to really had to do was pitot the airflow (as all the fuel was in the air)
(As an aside, when Mercedes was playing with the wankel engine, they relied on the unevaporability of engine oil to lubricate the apex seals - theirs was a peripheral port,and had apex seal wear - they put a porous section on the bottom of the manifold, and seeped engine oil through the porosity to create a creeping film of oil that just wet the apex seal without contamintaing the bulk charge and lowering octane...guess that engine oil didn't know that it would evaporate either)
