Quote:
Originally Posted by ConnClark
Try modding a cold air intake. Diesels are more efficient with cold air. Also try and come up with a ram air intake. That will help a little too.
This paper below shows the correlation of intake temperatures and efficiency of a modern diesel engine. (see the graph at the bottom left of page 5)
http://www.buet.ac.bd/me/icme/icme20...ME05-TH-35.pdf |
I had a good read there.
The test was done at 30-60 degrees C, 30 being better than 60.
I have no instrumentaion, but would hazard that cold air in Auckland NZ this time of year is about 8-12 degrees C and that the temp of my air after it has been heated on the exhaust manifold after passing throught the air filter and 2 plus feet of intake ducting would be about 30 degrees C, just going on holding in my hand the intake ducting near entry to the engine.
I feel the test condition need to be expanded to appreciate warmer air benefits in climates colder than 30 plus Degrees.