Turbo Blankets & Exhaust/Hot side wraps

Marvinmadman said:

I think a good middle ground would be making a heat shield for the back of the turbine housing to simply direct the radiant heat away from the block. For the #3 conspiracy theorist ya know. Probably the route I'm going to take

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Yes protect cylinder 3 mate's

The aim initially was to cover the block side of the engine, the heat shield covers the other part, wrapping up the cat downpipe and charge pipes will just keep the heat there, rather than in the engine bay. I've got hood vents to try and pull more heat out.

Marvinmadman said:

I think a good middle ground would be making a heat shield for the back of the turbine housing to simply direct the radiant heat away from the block. For the #3 conspiracy theorist ya know. Probably the route I'm going to take

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I believe this theory has been thoroughly debunked. The cylinders are completely surrounded by coolant, which is constantly circulated through the cooling system by the water pump.



For this theory to make sense, radiant or conducted heat from the turbo would have to heat components on the other side of a moving wall of coolant, which means the coolant is the heat transfer medium. I simply don't see how this is possible. How can coolant get hot enough to heat steel to a high enough temperature to weaken it? The coolant would flash to steam LONG before transfering that kind of heat.

This theory simply doesn't--ahem--hold water.

Theory or not, 2/3 still has less surface area for coolant to contact. That's my happy medium :cheers:

Marvinmadman said:

Theory or not, 2/3 still has less surface area for coolant to contact.

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Can you elaborate? From the photo it appears to me all four cylinders are fully enveloped by coolant except, of course, for the intake/exhaust runners.

Appears to be about 315° 1/4 vs 270° 2/3 open area for coolant. :shrug:

Marvinmadman said:

Appears to be about 315° 1/4 vs 270° 2/3 open area for coolant. :shrug:

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Ahh. I see what you're saying; cylinders 2 and 3 are joined to adjacent cylinders while 1 and 4 are open on the outside. There is still, however, a wall of coolant between the turbo and cylinders 2 and 3, so increased heat (if any) on those cylinders results from contact with adjacent cylinders, not from the turbo. How does shielding the block from turbo heat help with that?

Maybe the radiant heat from the turbine housing is heating the aluminum block just enough to expand in that area and throw tolerances out a just enough, who knows?

Marvinmadman said:

Maybe the radiant heat from the turbine housing is heating the aluminum block just enough to expand in that area and throw tolerances out a just enough, who knows?

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There is enough heat to do that ..
I should know im studying it..

trippleyelo said:

There is enough heat to do that ..
I should know im studying it..

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Are you talking about the stock setup or a modded setup pushing high boost?

TorqueMan said:

Are you talking about the stock setup or a modded setup pushing high boost?

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With mods ..

trippleyelo said:

With mods ..

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Would you please post the data you collect from your study?

TorqueMan said:

Would you please post the data you collect from your study?

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sure on the other thread I did want to over take this one..:ford: