Pistons Valve relief...

[v5 tt]

Just bought some pistons for my build i went for 83mm stroker pistons
9,5,1 compression for my k04 hybrid stroker build check these out

these are CP Made by carrillo some mighty valve reliefs on them !
i wont be using high lift cams though maybe in the future

come with some nice features i like the idea of the double pin oilers
Piston Tech

 

[slowcoach3]

sexy

 

[Andrew@A.L.D]

CP piston are very good, Used a lot with the Mk1 Focus RS boys to get over 500+ bhp

 

[v5 tt]

CP piston are very good, Used a lot with the Mk1 Focus RS boys to get over 500+ bhp

Yeah i really quite impressed with these i must admit i have not seen many used on the vag scene

 

[badger5]

how muh are they?

 

[v5 tt]

how muh are they?

Managed to get them for a very good price I paid $520 + $60 shipping

 

[badger5]

seems like a hell of a pocket on inlet and relative to the other 2 inlet valves where there is no provision...?

 

[<tuffty/>]

Got a side on pic to see how close the valve pocket is to the top ring groove?

<tuffty/>

 

[v5 tt]

seems like a hell of a pocket on inlet and relative to the other 2 inlet valves where there is no provision...?

yeah your right don't quote me on this but i "think" the guy from pagparts had some influence on the design
of these just what i caught from the U.S sites but maybe wrong ...

tuffty i,ll just up load a few more pics in a moment cheers

 

[v5 tt]

Right here is some more pics ....

I was going for some Mahle Powerpak pistons but i haggled a good price for these
and there seem to be highly rated by some people for my use the valve relief
is pretty excessive but for any future projects maybe of of some use to
accommodate oversize valves with high lift cams inlet side....

As you can see there doesn't seem to be allot of meat between the valve
relief and the top ring groove

 

[v5 tt]

I did not buy these from pagparts but here is the info from there site
CP Pistons - CP Pistons - CP VW/Audi 1.8T 83mm 2.0L 9:1 Custom Piston Set