Wnts2Go10O

iTrader: (12)

ok so we all knw the basics.. exhaust is pushed out of the cylinders and through the turbo to turn it. heres my technical question. with the right setup, wouldnt the trubo be on the verge of creating a vaccum to suck out said exhaust or already be causeing a vaccum? and on that note, how can you tell if you actually are getting all of the exhaust out or is that not technically possible? it seems that you would want a very small amount of overlap to use the boost to push whats left of the exhaust out to make a more efficient burn. i dont know if what i said is physically possible but it just makes too much sense.

ddnspider

iTrader: (26)

go to the forced induction section and read the sticky about FI.and go to www.forcedinductions.com and read turbo 101.

DeltaT

iTrader: (5)

The turbo operates more off the intensely hot and expanding gases to turn the turbine, not just the flow of the exhaust over the vanes.

Jim

Lasershop

iTrader: (2)

Like after having mexican food......

Wnts2Go10O

iTrader: (12)

i knw how a turbo works, the question was could it create a vaccum or scavenging effect. its not exactly a common question. yes, i knw turbos create a lot of backpressure and i knw that they are also run by the heat of the exhaust, but can they be matched well enough or to be setup in such a way that would cause a sort of vaccum in the cylinders to pull fresh air in. im wondering if the physics of a turbo would allow a scavenging effect in the engine.

Ryan K

iTrader: (11)

Um, One word, NO.

When you realize that a Turbo charger "typically" creates exhaust pressures 2 to 3 times the Intake charge, there is no way that a turbo system will create any scavenging effect.

Ryan

calongo_SS

iTrader: (7)

The exhaust is what is turning the turbo, how could the turbo be sucking out the exhaust? Something else would have to be turning the turbo.

Wnts2Go10O

iTrader: (12)

so, a turbo not only relies on exhaust and exhaust heat, but also the exhaust pressure. so what is being said is, since the exhaust pressure is being itself, compressed, that can increase its temp, or keep it relatively close to what it was in the cylinder. so, if the blades/fins were designed to drop the pressure that would actually create a crap load of lag, be way less efficient AND make less power. my plan on a decent discussion kinda went out the window. i guess i over complicate things..