you have to file the rings on the ross pistons,not sure on other makes but id presume so also,otherwise when they warm up theyl expand too much and you'l have problems
the 2 top rings come oversized and you have to file them to fit. i got a piece of paper with it but i cant understand it! could i use the end gap off the standard pistons?
if they came oversized than they are not for stock bore, which means you still could get the right size ones.
if they came oversized than they are not for stock bore, which means you still could get the right size ones.
i think youd be better off bringing them to someone who knows what they are doing...
i wouldnt use the same gap as the standard rings,because there simply not the same!!
yea i guess your right, better let a pro at it! i thought theses would be a straight fit and thats it.
this is the spec according to the sheet i got
Top
bore size in inches (2.913 for you) x 0.004 (spec in book for top ring) + 0.004 (recommended for turbo)
= 0.015652
Bottom
bore size in inches (2.913 for you) x 0.005 (equastion in booklet for bottom ring) + 0.004 (again, for turbocharging)
= 0.018565
should give you your figures in thousanths of an inch
** don't take these figures as gospel! **
i've actually bought a ring grinding machine now, it was such a ballache to find someone who still gaps rings thesedays
does the ring fit into the engine block if so ,put an old ring off your pistons in the bore too and see the diferenace in the size with feeler gague
you can get them from america easy enough,
0.015652 inches = 0.3975608 millimeters
0.018565 inches = 0.471551 millimeters
according to the google translator (hope that's accurate! :homer: )