300ex piston

[elementryder]

who makes a high compreeeion 0.80 piston? how many cc's will it be and where can i get one . another qwestion is what is the lightest 18/11-9 tire

[bwamos]

You mean 0.080" right? That's 2mm larger.

No idea what atv you have. But, on a 300ex that puts you at 297cc's

Weisco, etc.. should all sell a 76mm piston @ ~11:1 compression.

Lightest tire? Probably a grooved 2-ply turf tamer.

[elementryder]

yes i have a 300ex and wat website sells them and i did mean 0.080

[bwamos]

I'm sure C&D on this site sells them.

You'll want Wiseco Part# 4574M07600. That's the 76mm 11:1 piston for the 300ex.

[ZeroLogic]

i thought a company made a 300ex 13:1 compression pistion i could be worng though....

[2004exrider]

CC = .7854 x bore (in millimeters) x bore (mm) x stroke (mm) x number of cylinders.
Then the number you get divide that by 1,000 and you will get the CC's (cubic centimeters)

Jimmy

[bwamos]

Originally posted by ZeroLogic
i thought a company made a 300ex 13:1 compression pistion i could be worng though....

You can get higher compression piston than 11:1 for sure. But, I always reccomend the 11:1 to most people. Most people don't want to buy 110 octane race fuel.

[ZeroLogic]

What compression pistion do you have to run 93 octain gas with?

[2004exrider]

on an aircooled engine you can run 93 octane up to 11:1, anthing after you have to run a higher fuel.

Jimmy