TwinTurbo.NET: Nissan 300ZX forum - Wiseco supplied rings - end gap
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Subject Wiseco supplied rings - end gap
     
Posted by Bezza on May 20, 2008 at 10:02 AM
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Message Has any one ever had troubles with the endgaps for the rings wiseco supplied with their pistons?

The ones I got were 0.022 for the top ring gap and 0.012 for the 2nd ring. This was with 87.5mm pistons and 0.0035 piston to bore clearance.

The Wiseco specs recommend 0.0175 for the top and 0.019 for the 2nd.

I have ordered some 88mm rings for my 87.5mm pistons so I can file them down to size. I would put it down to user error except for the fact that the 2nd ring gap is too small and the top ring end gap is too large.

     
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