I've been collecting parts to put my engine back together and I'm about to order the rings there are two sorts mahle standed and N.P.R steel rings and a 3 piece oil ring that fit the mahle pistons the company say they are reall good over standed

has anybody got any info on these or used them on a road/track car.

I have a Cosworth yb gt30 turbo cams ported polished head normal stuff I use it for track days and going to work all round really

so any advice would be great before I order a set