[RedDevil]

Originally Posted by iveyjh

I would like to try the hot water method as an experiment. I just need to find some way to transfer its heat to the intake air.

I just did!
I found a tiny bottle which I filled it with near boiling water, so it was hot. Very hot.

It even says so

It fits nicely inside the air intake snorkel with room to spare.


Behind the snorkel you see the airbox. It is nice and square with room to play with in the top section.
I want to put my TEC and heat sink there, cooling fin on top of the box.

Anyway, test driving with the tiny hot bottle in the intake.
Was it too tiny to have any effect at all?

It did pull up the air intake temp by a few degrees.
I started of at 14°C in town; it jumped to 17°C and kept there while I got moving, even when the outside temp dropped to 11°C in the open fields.
Usually the intake temp stays close to the outside temp until the radiator valve opens or when stopped.
So it did indeed have some effect on the intake temp.

I cannot say I felt it economy wise. I did not have a perfect launch (two very short stops to a standstill), and my start off economy was not best ever. But it was comparable to a 17°C day (with some holdup) or maybe like a perfect launch at an 11°C day.
It seems to have a tiny beneficial effect, not worth the hassle but still.

Half an hour later at work I got the bottle out again. Cold, as expected.