Hi everyone,

hoping for some advice from those who have built engines before, as I'm not 100% sure whether the gap I set for the rings on my CP pistons is ok.

Now the formula for determining the top ring gap listed on the spec sheet that came with the CP pistons is "Bore (in inches) x 0.0045" for street/high performance and "Bore (in inches) x 0.0050" for road racing/drag. it states these measurements are "the minimum gap".

This means in my case, 3.209 x 0.0045 = 0.0144 using the street/high performance formula, and 3.209 x 0.0050 = 0.0160 using the road racing/drag formula.

I thought I'd aim for 0.0160 to be safe, as the spec sheet states that the formulas equal the MINIMUM gap. Although I ended up with 0.0170 in the end.

Turbo applications seem to run 0.0190-0.0200 so it's not that big, I'm hoping this gap is ok. I do recall in one of my conversations with Adrian (TODA) a while back, he mentioned it's better to go wider than tight when it comes to gapping rings, however there's all sorts of information on the internet claiming different things, so if anyone here has actually built engines before, what is your advice here? is this clearance ok? should I buy new rings and go tighter?