Piston gap wiseco

Thread in 'Technical Questions' started by scottyboy, Jul 14, 2016.

  1. scottyboy

    scottyboy Member

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    Bought a set of Wiseco piston 86.5 for my rb25det currently in the machine shop set to .0025 ptw clearance seems to tight to me it will be running 650bhp 1.6bar to 1.8bar ring gap .0017 top ring .0018 second ring I was thinking of .0035 ptw to to sure on ring gap any advice on Wiseco would be great
     
  2. stevieturbo

    stevieturbo Member

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    Follow the instructions supplied with the rings ( and pistons regarding bore clearance )

    And nobody ever hurt an engine with ring gaps a little loose.
     

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