| Stock is: Top Ring: 0.0083"-0.0157" Second Ring: 0.0197"-0.0299" Oil Rings: 0.0079"-0.0299" So if you plan on running a little hotter setup (which it seems you do) you can go maybe 25% larger on the gap for the top ring, near the top end of the range on second ring. I would personally still keep the oil ring in the middle. So tell him something like: Top: 0.012"-0.020" Second: 0.025"-0.029" Oil: 0.010"-0.020"
------------------------------------------------------------------ 1992 300ZX NA 5 Sp (Dead) 1990 300ZX NA Auto 2+2 (Dead) 1990 300ZX TT 5 Sp (Building) 2004 G35 Sport 6MT (DD) |