I was wondering what the compression is suppost to be on a blaster with a fairly fresh top end?

 

Stock Compresion is around 125-130psi.

 

Ok I have a compression tester but I need advise on how to do the actual test.

 

no way is stock compression 160. i have a .010 over piston and a shaved head and its 155.

 

the manual says 125 psi

i got 145 with my .040 liquid cooled setup

 

Just did a compression check and got a whole 27 psi! I ripped her apart and found half my ring was missing and took a chunk of the piston with it. Now this will be my third rebuild in under 8 months. Theer has to be somethingg really wrong if I am going through top ends like this!!! I am wondering if it may be linked to my Trinity high rev pipe. I have to run it at high rpm's to stay in the power. Maybe too high. Should I just throw the stocker back on or get a Trinity torque pipe?

 

sounds like all the problems are your fault, not the pipes.
1. improperly jetted
2. poor rebuild
3. poor break-in
4. over revving the motor

next time you rebuild, take your time and double check all your actions.
The pipe wouldn't cause it to blow the top end unless you were running too lean. Take your time when you break in the motor, don't do a crappy job just so you can ride the hell out of it 1 day sooner.

 

It is jetted perfect, it is not a jetting problem. And I did a good jod on the rebuild too. It took me like 3 weeks. I also ran it way extra rich for 8 gallons for the breakin until it started using less gas. I also have to over rev it to stay on the pipe with this pipe. Thats why I think it is the pipes fault.