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I was always under the impression that RPMs are a lot harder on the crank and bearings than boost. Unless you detonate (with boost). My question was aimed more at the RPMs, but I suspect the answer there is as subjective as the RPM limit of the stock valvetrain.
The problem with boost and mains is with a supercharger because you have the supercharger unit pulling against the crank and also making it turn the pulley
Did they come coated like that, or did you send them to PolyDyn?
Since these were a custom piston from Diamond, I had them do the coatings as well. It only added a week to the process. I'm interested in seeing how the 2 coatings on these hold up.
Since these were a custom piston from Diamond, I had them do the coatings as well. It only added a week to the process. I'm interested in seeing how the 2 coatings on these hold up.
Had mine coated by diamond as well. Did you go with a heavier pin?
Since these were a custom piston from Diamond, I had them do the coatings as well. It only added a week to the process. I'm interested in seeing how the 2 coatings on these hold up.
How many thousandths oversized is the bore for this kind of coated piston?
How many thousandths oversized is the bore for this kind of coated piston?
I am also very curious about the piston/wall clearance and ring selection type, I see the ports in the piston so I am wondering if you will be using a dykes style ring or what was the motivation i.e. will it be a 9-second "street car" with "tight" rings or will there be some kind of vacuum assist crankcase pump.
03-22-2016, 05:11 PM
