18 replies to this topic

[Dusky]

Or do this to it:

 

 

 

If you want broken exhaust manifolds in a year you have to do that indeed.. ;)

[Captain Mainwaring]

I had them not connected with no ill effects. When after 3 years I decided to plumb them in, now the choke needed for very short time only. I think, if the manifold has been designed to have water cooling, it certainly performs better when plumbed in.

 

 

It's water heating.

And amazingly this topic hasn't run to 18 pages yet....the greatest minds in the mini world are as yet undecided as to the benefits over losses of a heated manifold.

Can't hurt to plumb it in though.

[Captain Mainwaring]

I would tend to think it can do both, heating and cooling. For instance, if on hot day steaming uphill, your exaust manifold can be red hot, and transfer its temperature to nearby inlet manifold (esp. on standart setup). Having manifold plumbed in water cooling system makes manifold and carb very stable temperature wise.

 

Outside air temperature will make very little difference once the car is at running temp.

 

The inlet manifold is constantly cooled by charge air and vaporizing fuel.

 

Water heating could I suppose keep things more stable

[klivins]

I only reffered to it as water cooling as terms of it is connected to the cooling system, in the first place. pardonnez my Spanish there.

 

But, more to the topic, having run my Mini from plus 30 Celsius to minus 20 celsius with or without the water system plumbed in, I can say with it plumbed, the carb runs much more stable.