Myth or truth? Big engines question

[ronk]

Not quite so often these days tho!

[The.Analyst]

The original question and it’s answer is more moderated by the advances in technology rather than size.

For example a S54 engine in a M Zed has a cast iron block and no complex heat management systems.

In contrast a B58 engine has an alloy block, complex heat management, insulation on the engine etc etc

A generalisation is that you should ideally only operate an engine where you can reach the nominal operating oil temperature plus a period of time to burn off the pollutants that accumulating the oil prior to reaching normal oil temperature.

Therefore the engine when shutdown will have its moisture driven out of both the oil and its actual engine.

So a S54 may require say 25-50 miles at least to achieve that status..a B58 may require say 10-30 miles.

To come back to the point a B58 may do a lot better than an old iron block 2 litre unit

[Smartbear]

The original question and it’s answer is more moderated by the advances in technology rather than size.

For example a S54 engine in a M Zed has a cast iron block and no complex heat management systems.

In contrast a B58 engine has an alloy block, complex heat management, insulation on the engine etc etc

A generalisation is that you should ideally only operate an engine where you can reach the nominal operating oil temperature plus a period of time to burn off the pollutants that accumulating the oil prior to reaching normal oil temperature.

Therefore the engine when shutdown will have its moisture driven out of both the oil and its actual engine.

So a S54 may require say 25-50 miles at least to achieve that status..a B58 may require say 10-30 miles.

To come back to the point a B58 may do a lot better than an old iron block 2 litre unit

What’s your take on two modern units of different capacity though?
Rob

[Pondrew]

The original question and it’s answer is more moderated by the advances in technology rather than size.

For example a S54 engine in a M Zed has a cast iron block and no complex heat management systems.

In contrast a B58 engine has an alloy block, complex heat management, insulation on the engine etc etc

A generalisation is that you should ideally only operate an engine where you can reach the nominal operating oil temperature plus a period of time to burn off the pollutants that accumulating the oil prior to reaching normal oil temperature.

Therefore the engine when shutdown will have its moisture driven out of both the oil and its actual engine.

So a S54 may require say 25-50 miles at least to achieve that status..a B58 may require say 10-30 miles.

To come back to the point a B58 may do a lot better than an old iron block 2 litre unit

That seems to make logical sense to me, thanks.
So is the consensus that it's not the size of the engine, but the efficiency of it's heat management that's more important?

[Smartbear]

The original question and it’s answer is more moderated by the advances in technology rather than size.

For example a S54 engine in a M Zed has a cast iron block and no complex heat management systems.

In contrast a B58 engine has an alloy block, complex heat management, insulation on the engine etc etc

A generalisation is that you should ideally only operate an engine where you can reach the nominal operating oil temperature plus a period of time to burn off the pollutants that accumulating the oil prior to reaching normal oil temperature.

Therefore the engine when shutdown will have its moisture driven out of both the oil and its actual engine.

So a S54 may require say 25-50 miles at least to achieve that status..a B58 may require say 10-30 miles.

To come back to the point a B58 may do a lot better than an old iron block 2 litre unit

That seems to make logical sense to me, thanks.
So is the consensus that it's not the size of the engine, but the efficiency of it's heat management that's more important?

What about engines with equal modern heat management but one small/one large? That’s still not really answered the original query?
Rob

[buzyg]

The original question and it’s answer is more moderated by the advances in technology rather than size.

For example a S54 engine in a M Zed has a cast iron block and no complex heat management systems.

In contrast a B58 engine has an alloy block, complex heat management, insulation on the engine etc etc

A generalisation is that you should ideally only operate an engine where you can reach the nominal operating oil temperature plus a period of time to burn off the pollutants that accumulating the oil prior to reaching normal oil temperature.

Therefore the engine when shutdown will have its moisture driven out of both the oil and its actual engine.

So a S54 may require say 25-50 miles at least to achieve that status..a B58 may require say 10-30 miles.

To come back to the point a B58 may do a lot better than an old iron block 2 litre unit

That seems to make logical sense to me, thanks.
So is the consensus that it's not the size of the engine, but the efficiency of it's heat management that's more important?

What about engines with equal modern heat management but one small/one large? That’s still not really answered the original query?
Rob

So does the size of the engine affect the efficiency of the heat management?

A most interesting thread to read back through. Personally, engineering slightly to one side. I think most average drivers put less strain on a bigger more powerful engine, that they do a smaller capacity engine. For a whole host of reasons. Fuel economy being one.

[Pondrew]

I think most average drivers put less strain on a bigger more powerful engine, that they do a smaller capacity engine. For a whole host of reasons. Fuel economy being one.

Probably. The reason for the original question, though, is I'm thinking of buying a very high performance big engined car, so don't know if this negates anything.