Concerns about Supertech pistons
#102
I just bought a set of JE 84mm 9:1 pistons for my '02. What do you guys think? am I going to be in trouble? they just went with the block to the machine shop. The head did not go with them as I am doing a mild pocket & relieve job here in my shop. the '02 has stock VVT cams. Does anyone run this setup?
#104
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Belfab SELLS Supertech pistons. IIRC there was never any question about this.
I still suspect that the cause of my #1 failure was uneven distribution of WI. But, that thin web area on the piston certainly does not help as it could create a hotspot that would lead to local detonation and more heat, leading to more detonation, etc. The rest of the piston looked fine, just that one spot.
So my motor has been reassembled for some time now with the FM Wiseco pistons and is waiting to go back in the car. If I could do it over again I would probably research it to be sure it is OK, then have that web around the intake pocket removed a-la the pictures JasonC shows above. They would have to be rebalanced but this is all no big deal for a good engine shop.
I still suspect that the cause of my #1 failure was uneven distribution of WI. But, that thin web area on the piston certainly does not help as it could create a hotspot that would lead to local detonation and more heat, leading to more detonation, etc. The rest of the piston looked fine, just that one spot.
So my motor has been reassembled for some time now with the FM Wiseco pistons and is waiting to go back in the car. If I could do it over again I would probably research it to be sure it is OK, then have that web around the intake pocket removed a-la the pictures JasonC shows above. They would have to be rebalanced but this is all no big deal for a good engine shop.
#109
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Keep in mind I was running up to 18 psi with a GT2871 with an aggressive tune so I was well over 300 HP based on other data here. If you do not plan on pushing your engine as hard it may not be as big a deal.
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