Popping on over run

[yorkie_chris]

Originally Posted by pencil shavings

cooler air was higher in O2 and i thought that was the crucial part in the bang and pop.

Originally Posted by thor

In cold weather air is denser you you get more oxygen for the same volume.

Yup, the %age of O2 remains the same, colder air is generaly more dense.

So I would say that in cold weather the mix will be leaner, same volumetric flow, more mass flow for the same fuel.
So in hot weather there'll be a bit more fuel there to burn with the PAIR air and cause them bangs.

I'd remove the PAIR on general principle, its extra weight and complication that doesn't do much.

you environment killer you, last night i started her up with some revs as i was in a tunnel and wanted to go rrooaarr but too much revs and she went rrooaar oooooo bang and a flame shot out lighting the tunnel up i thought i betta get out of hear cos it sounded like a gun shot lol

LMAO Smudge.

I think it is probably a mixture of several things, rest assured it is in no doubt all directly related to the temp.