It means: Naturally aspirated engine is an internal combustion engine in which air intake depends solely on atmospheric pressure and which does not rely on forced induction through a turbocharger or a supercharger. Big block race engine and power.
It means: Naturally aspirated engine is an internal combustion engine in which air intake depends solely on atmospheric pressure and which does not rely on forced induction through a turbocharger or a supercharger. Big block race engine and power.
Yes, in our circles "power adders" means everything from nitrous, superchargers or turbos, either with carbs or injection, I love the old Enderle stack injectors sitting on a big sheet metal tunnel ram on top of a big hemi.
Air is still drawn into the cylinder bore via vacuum-venturi process.
aspiration is not atomisation.
Atmospheric pressure is what I was taught filled the cylinder with air. Had an instructor that was adamant that air was not sucked into the cylinder.......I find it hard to believe at least some vacuum is not created when the piston drops.
A true sportsman counts his achievements in proportion to the effort involved and fairness of the sport. - S. Pope
Yes, the falling piston creates a pressure lower than atmospheric in the cylinder. Whether you consider the atmospheric pressure to push the charge into the cylinder, or the low pressure to suck in the charge is semantics IMHO.
Hmmm, maybe that's why a BJ isn't called a suck job?
Just a couple thoughts. There is actually no such thing as vacuum. Vacuum is by definition the absence of air.
What there is, is 15 psi of atmospheric pressure (at sea level) driving air into any place with lower pressure. So the teacher was correct.
Gunner 500, I am on my phone. So cannot copy and paste. I was quite recently perusing the history of Detroit Diesel and the websites listed many two stroke naturally asperated engines in small HP applications.
People who choose to brew up their own storms bitch loudest about the rain.
4000 rpm would make ears bleed.