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84 mm piston comparison 84 mm piston comparison
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84 mm piston comparison
Can anyone tell me the advantages of either piston crown design. The taller (pointier) one seems to me like it would put a lot of the charge pressure on the rings. Both are JE for a 2.4

Thanks


73 911 E
Old 02-09-2015, 09:08 AM
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no engineers out there that can tell my why JE changed the design? Supposedly they have the same compression ratio.

Chris

Old 02-10-2015, 11:08 AM
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