MALESKIMP3
Member
- :
- mazda protege mp3
Hey guys just wanted to let you know Wiseco is suppose to be revising their 84mm pistons and adding more material to the area around the intake valve relief but only the 84, the 83 and 83.5 will remain the same. They should be sending me a set of the revised versions in 2-5 weeks so ill post up some pics when they come in.
I had an issue with burning off the thin area on the intake side with two sets of these pistons so Jay of JayRacing and I sent them to Wiseco just to see if it was something we were doing wrong or if they could do something to help my issue. The tech guy was pretty helpful and he thinks that when you push these motors that a hot spot forms on the intake side and the heat is concentrated on the thin area until it eventually is burned/vaporized off. Something he also said we could do for the smaller pistons is to machine off this thin area off so as to remove the point where the heat is concentrated so the heat might spread out and not harm the piston.
In my experience I've only had the pistons out of cylinders 1 and 4 that looked this bad, two was almost unharmed, and three was somewhere in the middle with both of my sets. Has anyone else had pistons that looked like this or something like it?
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I had an issue with burning off the thin area on the intake side with two sets of these pistons so Jay of JayRacing and I sent them to Wiseco just to see if it was something we were doing wrong or if they could do something to help my issue. The tech guy was pretty helpful and he thinks that when you push these motors that a hot spot forms on the intake side and the heat is concentrated on the thin area until it eventually is burned/vaporized off. Something he also said we could do for the smaller pistons is to machine off this thin area off so as to remove the point where the heat is concentrated so the heat might spread out and not harm the piston.
In my experience I've only had the pistons out of cylinders 1 and 4 that looked this bad, two was almost unharmed, and three was somewhere in the middle with both of my sets. Has anyone else had pistons that looked like this or something like it?
