yama-dude Posted May 15, 2004 Report Share Posted May 15, 2004 Just rebuilt my motor and used 020 Vitos SS pistons, The ones with the exhaust "cut out" in dome. the quality is top of the line and they are much thicker than stock. even the wrist pins were lightened. The machine shop did the bore with 001 clearence per side. Vitos claims 6-8 horse increase but that seems truely optimistic. I did notice a pretty big difference in the mid range. 3-4 maybe, it was very noticeable though. Quote Link to comment Share on other sites More sharing options...
svtjames Posted May 20, 2004 Report Share Posted May 20, 2004 Yeah Not so sure about the 6-8 hp increase but I do like how it pulls a wheelie in fifth very easily now. I wish I had not have done the coolhead at the same time though because I have to credit the better throttle response to the race gas. Quote Link to comment Share on other sites More sharing options...
Toomey Banshee Posted May 20, 2004 Report Share Posted May 20, 2004 forged or cast? Quote Link to comment Share on other sites More sharing options...
svtjames Posted May 21, 2004 Report Share Posted May 21, 2004 Almost positive they are forged Quote Link to comment Share on other sites More sharing options...
yama-dude Posted May 29, 2004 Author Report Share Posted May 29, 2004 Yes they are forged. Quote Link to comment Share on other sites More sharing options...
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