CR pistons ??

[vic66]

Hi Everyone
I run a vintage sidecar rig using a xs650 motor. We blew up our #1 engine with the mikes 750 kit in it so are going to throw the #2 engine in for the next race. It had 2nd over mikes xs pistons in it and they have ovalled. I have looked for some forged pistons and in my search i came across these. I know they are not forged but it sounds like a bit better quality than the mikes cast ones. I dont want to go too crazt with the $$$s on this engine, so my question is has anyone had any experience with them?
Cheers
Vic

http://www.ebay.ca/itm/Yamaha-XS650...ash=item35f6e9e77f:g:RjEAAOSwwE5WZE7V&vxp=mtr

 

[650Skull]

The compression ratio will be due to the thinner head gasket, that's why they tell you to move the cam sprocket.

Those pistons look like Cruzinimage pistons with a coating.

Links; http://stores.ebay.com/cruzinimage-...H_TitleDesc=1&_fsub=1786787011&_sid=526414511

Link to a thread about these pistons.
http://www.xs650.com/threads/cheap-piston-sets-on-ebay.26971/

 

[vic66]

thanks for the info, I am actually going to go with the Hoos 700cc JE pistons ....done a bit of research and they seem the best bang for the buck and they are forged

 

[jay760]

I have 750cc JE pistons in mine from Hoos, they are well worth the money especially if you are racing it, they also come in 3 different sizes so you should be able to bore your barrels to suit.

 

[vic66]

I have 750cc JE pistons in mine from Hoos, they are well worth the money especially if you are racing it, they also come in 3 different sizes so you should be able to bore your barrels to suit.

Thanks Jay, I went with his 700 pistons just so we can do a quick rebuild without having to sleeve etc on the #2 engine to get back out there, but will be looking into his 750s for the mikes xs big kit i have on the # 1 engine.
Its always good to get positive feedback cheers
Vic