wossner bbk piston vs vitos bbk cast piston

sk8border4zro

Supporting Member
Forum Supporter
May 31, 2011
16
2
50
41
Portland OR
I just got a new vitos big bore kit. All the talk about cast pistons makes me wonder if I should just do a wossner instead. Is there any difference in performance using the stock vitos bbk piston vs wossner bbk piston? Just wondering... Thanks.
 
There is no difference at all in performance with a forged piston. The difference comes at the very end of the useful life of the piston. When the lifespan of a cast piston ends, it usually results in a disintegration and a thousand little aluminum balls go flying everywhere. When a forged piston's life is finished, the piston gets galled to the cylinder wall and "scrapes" to a stop.

I prefer for my pistons to stay one piece...
 
I just thought they had a different design, so I wasn't sure if I was going to lose or gain performance by going wossner. Thanks for the info guys.