Hey Benny,
Some updated data came in regarding piston rings - the NA gap is much too tight. Especially once you factor in heat and expansion, given the cast alloy pistons and the iron sleeves, your gap will tighten which will create a sub-optimal environment for boost. I've been told that the ideal gap for a stock motor seeing boost is around the upper limit of the stock spec, if not slightly more... remembering that this motor is 10.7:1 CR whereas our EJ turbo friends are somewhere around 8.2, we're dealing with an engine that's compressing already compressed air 2 times more than the smaller engines are... however, these engines still don't seem to suffer the ringland failures, insofar as the conrod becoming 2-or-more piece and adding a viewing window to the crankcase.
https://www.cp-carri...19final-web.pdf
Some useful info in there as well. Also, if you're going to boost a stock block EZ, I would say E85 as a minimum unless you really really trust your tuner.
Unfortunately, cams still seem to be thin on the ground. Aaron Gipp has been making them but no updates on those as yet. I've sent an inquiry to Starcev Motorsports in Russia but that comes with it's own complications as is, because importing from RU is problematic at the moment.
Beyond that, any other questions, sing out and I'll try to answer it.






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