Having the extra cylinder pressure should increase hp but how do they expand when they get hot? How loose would you run the piston to cylinder tolerances with those? I wasn't comfortable not knowing the answers to those questions and how they would handle the heat. Maybe I'll try them on my next build, but for now, I just opted for the old fashioned Mahle/Cummins rings.
Out of curiosity, what are your thoughts on them?
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Colin. 2wd 12 valve Pro Street 9.88 @ 140mph sold.
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