Compression test results

[xrrich]

Got chance to get my hands on a compression tester, I had suspicions that head gasket was going, its leaking oil and water, and looks like there is oil in the water.

Results

Cylinder1- 145psi
Cylinder2- 150psi
Cylinder3- 155psi
Cylinder4- 155psi

I don't really know where to go from here, any help would be great

Cheers
Rich

[Yoof]

Rich,

Those pressures look strong, what colour are the plugs?

Could of course be fluid in the combustion chamber upping your CR 

Yoof

[xrrich]

Ah nice to hear, what is average pressures then?
The plugs were all dry slightly blacky,brown, they look normal.

Fluid in the combustion chamber upping my CR?

Thanks
Rich

[djtez]

water or oil in the cylinder can seal up small gap's in the piston rings giving it a seal allowing it to up the compression.

i think (only thinking) 10 bar is quick good.
between 8/10 bar i think is acceptable..
but thats just memo from haynes..

[Etches]

Just to bump this thread up, I've ended up with a poorly G this weekend after winding the boost up. Boost was set to 21psi but it suffered a creep at top revs and something went pop and she overheated in a matter of seconds. My compression test results were as follows;

149  163   168   160

Wossner Pistons with 6n HG

[Yoof]

Pics of plugs 

[z3i]

Just for the record incase people look at this thread for reference my results with acralite pistons 1341 BVH were

170/170/172/175