Post by
biosehnsucht »
https://forums.nicoclub.com/biosehnsucht-u13953.html
Fri Apr 13, 2007 10:23 pm
83mm: XTP-553P83 (stock size)83.5mm: XTP-553P835
From their catalog, XTP are made for them by CP Pistons. XT are Wiseco. Both are "custom" for them by their respective manufacturers.
So, XTP's are still CP Pistons.
It does seem they are only stocking 83mm and 83.5mm now. I have 84mm, when I got mine, mine were essentially custom IIRC in that I basically ordered them by ordering a set for the CA18DET but manufactured to 84mm in size.. they weren't yet in the business of stocking kits on a regular basis for the CA.
They did stock 84mm at some time but I would presume not enough people were overboring that far. Also considering the likely limited number of people purchasing, I wouldn't be suprised if they bulk ordered a bunch when I got mine years ago and then the rest sat on a shelf until they were all sold off.
You can call them and custom order in whatever size / CR you want, but it'll cost you extra.