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ok, here goes again for the 3rd time, h23, sleeved, arias 8.5:1 pistons, crower rods, arp main and head studs, stock head, with a f-max kit, honda s200, delphi 75lb injectors, 7psi. ON THE DYNO!
Got the based map, and was just starting to increase the boost. got out 4 pulls at 7psi made 220hp and 210tq at 5800, was not even running to redline. A/f was at a 12.0-12.2 under boost, absolutely no signs of detonation on plugs, but broke an upper ringland in #2, ejected the piece out the cylinder and jammed in the turbine wheel.
I think Arias pistons are now crap, either i got a ****ty batch or they are just not that great on honda's. Anyone else had problems with arias?
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