2021 Bronco

[Nick M3]

Marginally higher engine bay temperatures don't really have a meaningful impact on the running temperature of the engine, since it's cooled by the radiator.

[lemming]

Originally Posted by Nick M3

Marginally higher engine bay temperatures don't really have a meaningful impact on the running temperature of the engine, since it's cooled by the radiator.

But let me extend your thinking: turbo is pushing superheated air at some point. Which rapidly reduces power.

Or would you say an NA engine faces the same issue of hot air intake?

My experience with turbo engines says they’re affected by heat soak more so than NA engines

[Jeff_DML]

Originally Posted by lemming

But let me extend your thinking: turbo is pushing superheated air at some point. Which rapidly reduces power.

Or would you say an NA engine faces the same issue of hot air intake?

My experience with turbo engines says they’re affected by heat soak more so than NA engines

yeah plus you have extra coolers to package, ie, intercoolor, which could interfere with the radiator, i..e wrangler

[Nick M3]

Originally Posted by lemming

But let me extend your thinking: turbo is pushing superheated air at some point. Which rapidly reduces power.

Or would you say an NA engine faces the same issue of hot air intake?

My experience with turbo engines says they’re affected by heat soak more so than NA engines

Eh. I think the real issue is that dinky turbo engines tend to have the cooling of a dinky engine. Can't ever get away with a dinky radiator on a big engine.

[lemming]

Originally Posted by Nick M3

Eh. I think the real issue is that dinky turbo engines tend to have the cooling of a dinky engine. Can't ever get away with a dinky radiator on a big engine.

Lol.

Oh boy. This made me laugh so hard.

[JST]

Originally Posted by Nick M3

Eh. I think the real issue is that dinky turbo engines tend to have the cooling of a dinky engine. Can't ever get away with a dinky radiator on a big engine.

I mean, unless you're swapping an SBC into a Land Cruiser.

[kognito]

I wonder what the weight difference is between a turbo 4 and a big honking V8?

In off roading, weight is rarely your friend. But, I have also experienced the explosion of a wagoneer radiator on trail. scared the crap out of 3 of us. Lupinsea had to drag the wounded wagoneer a good part of the way out of the woods and back into cellphone coverage area

[JST]

Originally Posted by kognito

I wonder what the weight difference is between a turbo 4 and a big honking V8?

In off roading, weight is rarely your friend. But, I have also experienced the explosion of a wagoneer radiator on trail. scared the crap out of 3 of us. Lupinsea had to drag the wounded wagoneer a good part of the way out of the woods and back into cellphone coverage area

I can't find a good weight on the Ecoboost, but the Ford Performance site gives a weight of 445 lbs for the Coyote V8.

[John V]

Originally Posted by lemming

But let me extend your thinking: turbo is pushing superheated air at some point. Which rapidly reduces power.

Or would you say an NA engine faces the same issue of hot air intake?

My experience with turbo engines says they’re affected by heat soak more so than NA engines

The air isn't "superheated." The air out of the turbo is hot, but it's immediately cooled down to near-ambient by an aftercooler.

The issue is when, as Nick points out, the cooling system isn't sufficient to extract all the heat, whether due to insufficient airflow through the various radiators. This isn't unique to turbocharged engines.

[lemming]

Originally Posted by John V

The air isn't "superheated." The air out of the turbo is hot, but it's immediately cooled down to near-ambient by an aftercooler.

The issue is when, as Nick points out, the cooling system isn't sufficient to extract all the heat, whether due to insufficient airflow through the various radiators. This isn't unique to turbocharged engines.

But you don’t think the normal engine heat plus a hot turbocharger is any worse per cubic foot of metal than an NA engine?

I don’t know the difference. I don’t have a laser thermometer so I couldn’t do the measurement.

And do you think a turbo in this high load low speed operation would have the same heat soak power reduction as an NA engine or more or less?

The reason I’m asking is because under severe hot weather with AC on, any four cylinder turbo feels like the small displacement engine it is —I.e. turbo advantage seems neutralized.

Whereas I haven’t run into this with bigger displacement NA engines under the same conditions. It’s all subjective but if you had more objective thoughts that would be fun to read.