3 replies to this topic

[m1tch]

I am just wondering about this, what is the point of the waxstat? all I can see it doing is messing with the mixture you have tuned the car to when the engine is cold lol Is there any point for a mildly modded mini like mine to even keep running it?

[Dan]

The Waxstat jet has nothing to do with engine temperature, it adjusts the fuelling to compensate for air temperature changes.

Edited by Dan, 28 August 2009 - 11:29 PM.

[jaydee]

Whether you have or not a waxstat, you dont have to set mixture when engine is cold!
In poor word the waxstat is a thermostat that rises the jet position when temperature increases. So when its cold, it enriches the mixture, when hot, it leans mixture. This because when engine is cold, you need a richer mixture. On the downside, they cant cope with very warm conditions, like hours in the traffic and very hot summer days. In this cases they tend to get lean the mixture off too much, so idle speed will increase and performace will drop down. If in good conditions, the waxstat helps a lot on cold starts and winter conditions, they make your engine idle smoothly, with better emissions and better mpg.
People usually changes them because they're delicate and any layer of dirt built up will make em useless. You have to keep em clean to make em working properly.

Obviously, as Dan said, its the air the temperature that affects the waxstat.

Edited by jaydee, 28 August 2009 - 11:39 PM.

[m1tch]

Ahhhh ok I will leave it at the moment and see what its like when it gets colder thanks guys, wasn't sure if it leaned your mixture, or richened it lol