how hot does it get? 250R

[atctim]

Anybody have a general idea of how hot it gets inside the combustion chamber of a liquid cooled 250R?

Please - no guesses here.

Tim

[3Razors]

When using EGT's, the maximun before meltdown is about 1300 degrees. People usually like to lean out their jetting to that mark for the most power.

[atctim]

Aluminum melts at 1220 F - I am wondering normal operating temps. I saw online that a 2.2L 4 cylinder car motor operates at a temp inside the combution chamber of between 160 C and 258 C (258 C is roughly 500 F)

I can assume the 250R runs hotter than this - but surely not above 1000 degrees F.

3Razors - how did you obtain this info?
PS - love your avatar!

[3Razors]

Hi Tim, you gotta love Capt. Lou right?! He was fun to watch..I was running an egt on a cr500 a few years ago and had an optak brand egt. Before I went crazy on the jetting I did some research on go-kart forums and such, from what I could gather on a 2-stroke 1300 degrees was the safe area. The probe placement in the pipe was critical in getting an accurate temp. reading.

Here is some reading info.

http://12.227.214.171/EGT.htm