What compression?

[johnnytheswede]

Hi. I, m just curious of what compression you guys are running in your ported 500,s. I have a quite regular portjob with 3,5mm raised exhaust and 1,5mm transfers. Ported intake ports. I use 95 octane fuel. I also have a Coolhead with 66cc chamber now, but has been recommended to go for the 63cc that i also have. Bore is 89,5mm. What do you guys think is a good compression ratio for a bike that will be used for street and iceracing and must be reliable? I will use a Dynoport pipe. Pwk 41,5mm is on the bike.
Just curious about your suggestions here.

Regards

Johnny