What is the advantage to retaining heat through the exhaust side to the turbo?
Is it because hot air is more violent than cold air so it spins faster? Im a newb to the turbo world and am just trying to get the basics down so bear with me. Tryed a search but to much other stuff came up with "hotair" thanks in advance for any answers to this question

 

when air cools, it becomes denser and takes less volume, which means that there is less volume of air to spin the hot side of the turbo and generate your boost

 

Simple chemistry buddy, hot molecules move faster and spread out more. There are also benefits to making the intake air as hot as possible, but not as much with forced induction.

 

Perhaps for emissions testing, but not for perfomance.

 

Read up on abidactics. Then do a search on Smokey Yunick and Adiabatic engines. Again it's just simple chemistry, the hotter the air/fuel charge is going into the cylinder, the less energy it takes to combust. Though the gains will be seen more at higher rpm.

 

Hmm... I'll stick to my real world experience (cold air = denser air = more fuel = more timing = more power).

 

I guess that's a big difference between me and a whole lot of other peolpe, I love innovative (and often crazy) ideas.

 

I love innovative ideas as well, but hit the dyno and blow cold air and hot air into the intake and tune for each...I am willin to bet the cold air makes more power

 

But then convert the engine to run based on Smokey's "Hot Vapor" design and watch your HP grow by ~50% along with your gas mileage.

 

Interesting reading... carb setups only. I wonder what the 3rd components of his setup is?

 

http://www.eng-tips.com/viewthread.cfm?qid=78116&page=1

 

If we're talking about a retaining heat upstream of the turbine side of the turbocharger, it's because it takes engery to spin the turbocharger. Hot gas has more energy in it than cold gas.

Mike

 

Yeah I've read that thread before, a lot of skeptics out there, and many contradictions. I think the third component was his ceramic coatings, but that's just my opinion.

 

He is talking about intake charge heating...

 

The original post is not, we've drifted a bit off topic