2010 m8t Different compression-rebuild?

[Lattitude]

I have a pg boondockers turbo with an ebc. I am only getting about 7900 max rpms out of this currently. I ride at 10,000 to 12,000'. Should i be at 8400 rpms or just 8200 like stock? I was curious so i took a compression test and have 105 on the left cylinder and only 88 on the right. What should this be with the 2010 head? Here is some info that might help

Boondockers box settings
3k 4 0 0
5k 1 5 1
psi 11 28 49
dc 53/88

Thanks for the information!

 

[smoothdawg]

I would pull either the powervalves out or pull the y-pipe off and have a look at the pistons. Your answer may be right there. I am pretty sure your compression would be lower than somebody who is measuring at sea level, all things being equal. Hope this helps some.

 

[harf69]

if there over 5% from each other you need a rebuild pop the power valve and the pipe and take a good look