INFO ON TURBO BLANKET [beanie]

[Winnie]

Ok folks I am way too late on this convo and can't be bothered reading through all of this but wouldn't you be pushing more heat through the turbo with a snugly blanket?

Are you blokes just trying to reduce engine bay temps,

Last minute question????

Not good for your turbo really

[megatexture]

I'm with you Winnie, cooler bay at the cost of cooking your turbo.

[threedogs]

A few guys here run them with no problems one on a 6.5 chev and the other a 3ltr I think.
and thats over a few years,could be like chicken soup lol.
And temps under normal driving conditions would be very low compared to any race application
which few here would reach if ever. lol

[Hodge]

And temps under normal driving conditions would be very low compared to any race application
which few here would reach if ever. lol

So if they're very low, why put one on?
This got me curious last night and done some reading and googling, and yeah in very extreme cases of racing heat they wrap them up to keep them nice and warm.
If it's to keep aux battery away from the oven, maybe look at alternatives.
But wrapping up a turbo under an already grenade prone bonnet, this is just asking for issues. The Garrets they run are oil cooled, and thus oil circulates through the turbo. Keeping the turbo hotter = hotter oil, through the engine too. Just my understanding and my 2 cents.

[megatexture]

I can't see how this can be good for the turbo regardless of race application or not it must be shortening its life and I know I'd rather pay for a new battery over a cooked turbo any day,

[nissannewby]

Not good for your turbo really

They don't really effect turbo life. Basically the beanie insulates the turbine housing there for the heat stays in the gas, which as 3dogs has said heat = energy and this is how the turbo does its work, so the heat doesn't get into the material as easy. Now if the heat is staying in the gas and not being soaked up by the turbo housing and cartridge then the oil will be unaffected.

These are not a bad idea. And as I said earlier I would prefer to ceramic coat and then apply a beanie.

[nissannewby]

Ok folks I am way too late on this convo and can't be bothered reading through all of this but wouldn't you be pushing more heat through the turbo with a snugly blanket?

Are you blokes just trying to reduce engine bay temps,

Last minute question????

This is what you want (to a point obviously). If you lose energy (heat) to material then that is energy lost that can drive our turbine. Now the effects might not be able to be felt on the zd but this can improve response from the turbo.

[threedogs]

have a read it may explain a bit more like NN said

http://sti.wigglit.com/wordpress/?p=689

I would ceramic coat but that means being off the road,
had great results on other 4x4

Plus it may eliminate hot spots along the manifold
Thermal dynamics

[megatexture]

They don't really effect turbo life. Basically the beanie insulates the turbine housing there for the heat stays in the gas, which as 3dogs has said heat = energy and this is how the turbo does its work, so the heat doesn't get into the material as easy. Now if the heat is staying in the gas and not being soaked up by the turbo housing and cartridge then the oil will be unaffected.

These are not a bad idea. And as I said earlier I would prefer to ceramic coat and then apply a beanie.

Your mate at auto xperts when I asked his opinion on them said not to put one on unless I wanted a cooked turbo.

[taslucas]

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.