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Discussion Starter · #1 ·
Been a while since I have been on here but still have the Gtr and now a 33gtst plus two kids now lol

I'm building up an rb25 and struggling to find any info on stock piston ring gaps ?

Searched the web high and low and have all the workshop manuals but noting mentioned about the rb25 ring gap.

Was going to go by the rb26 ring gap but they seem to be much tighter.

I have a stock bore and stock pistons. Gone through two sets of Nippon rings now as the gaps come up on the large side so now wondering if the gaps are much bigger on the rb25

Any help would be great.
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