INFO ON TURBO BLANKET [beanie]

[Ben-e-boy]

Why do they cool them with oil or water if they operate better hot?

Isnt the only reason they are hot is because they are fed by exhaust so in theory if you had forced cold air feeding it instead hot exhaust the whole thing would run even better?

I'm definitely no expert!

But is this right?
Heat is energy but the heat energy is a by-product of the combustion process and during combustion the energy that's turned into heat is lost energy as it's not turned back into kinetic energy. It's the pressure, or kinetic energy, of the exhaust being forced out of the engine that spins the turbine and continues to be kinetic energy which forces the air in.

Oil and coolant cooling are for the moving parts,

So for the heat in the turbine gasses..... you need fuel to make the heat, you need the heat to make the boost, so in theory, if you can keep in some heat from combustion, you should be able to make the same boost responce with less fuel.

Thats why I have ceramic coated so much in order to somewhat test the theory

[threedogs]

Oil and coolant cooling are for the moving parts,

So for the heat in the turbine gasses..... you need fuel to make the heat, you need the heat to make the boost, so in theory, if you can keep in some heat from combustion, you should be able to make the same boost responce with less fuel.

Thats why I have ceramic coated so much in order to somewhat test the theory

same thing its all about thermal dynamics with heat equalling energy.
take the beanie away and replace it with ceramic coating and every one goes wow great idea

[Sir Roofy]

same thing its all about thermal dynamics with heat equalling energy.
Take the beanie away and replace it with ceramic coating and every one goes wow great idea

maybe you,l be up for it sunday mate be interesting how you read your temps

[taslucas]

I'm still dumb Benny, how does the temperature of the exhaust gas make the turbine spin faster?

Isn't it the speed/volume of the exhaust gas exiting the engine, therefore the speed it turns the turbo impeller, that controls the speed/volume of the air getting pushed in to create boost?

[threedogs]

Another reason my temps might be down could be because my IC is not being used as a heat sink.
Just a thought,,,,
They are not down heaps but noticably lower than before.
And you can feel the difference again not a huge amount,
but you can feel it

[Ben-e-boy]

I'm still dumb Benny, how does the temperature of the exhaust gas make the turbine spin faster?

Isn't it the speed/volume of the exhaust gas exiting the engine, therefore the speed it turns the turbo impeller, that controls the speed/volume of the air getting pushed in to create boost?

Yeah it is speed and volume, and you get that from combustion and the heat energy from that. If you inject small amounts of fuel and get a smaller bang you arnt going that energy or volume or velocity to spool it.
Too much fuel and you'll end up quenching the combustion and going backwards.

Thats how I understand it

[BigRAWesty]

Just thinking from a fluids point of view.
The the volume of hot air exits the engine to turbo.
As soon as its is in the turbo you get heat sync into the turbo and atmosphere. While this is happen the air is cooling, and cooling the air reduces its volume.

So what the beanie does is it retains the heat threw to the exhaust, where it can start condensing as it likes.
Seeing the heat loss is less threw the turbo it means more volume threw it, which means more efficiency.

Td you may be seeing lower engine bay temps, so a lower ic temp over all which means it can work more effective, thus more poke.

[threedogs]

Yeah its not neck snapping but it is noticable be it smoother less lag I'm not sure.
still need to go for a long drive when I can but has to be better than before IMO

Whilst searching for info about the beanie saw one guy make
an awesome heat shield using half of a polished stainless steel pot.
It fit over his turbo perfectly

[nissannewby]

I'm still dumb Benny, how does the temperature of the exhaust gas make the turbine spin faster?

Isn't it the speed/volume of the exhaust gas exiting the engine, therefore the speed it turns the turbo impeller, that controls the speed/volume of the air getting pushed in to create boost?

Heat = pressure. Pressure differential is what helps the turbo work. So if you lose heat your are losing energy hence the turbo cannot work as efficiently.

[taslucas]

So if you had two turbos hooked up on a bench and you fed them both with exactly the same volume and speed of air (say from a big compressor or something) but one was being fed hot air and the other cold air, the one being fed hot air would be pushing more out its output side?