Fly cutting factory pistons
Fly cutting factory pistons So in a recent thread Summit Racing replied and made a comment about factory pistons being fly cut was a time bomb. I'm simply curious what the forum consensus is as for the safety and longevity is when fly cutting pistons.
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Suicidal Racing is The Man With the Best Plan with a Factory Piston...and Cutting.
Hands Down...person to Talk to if you Really wanna know about it.
Guys do it all the time in the Quest of:
Cam Lift and more Compression
Hands Down...person to Talk to if you Really wanna know about it.
Guys do it all the time in the Quest of:
Cam Lift and more Compression
I’ve cut a few sets of OEM pistons and it really depends on how far you need to go. Deepest I’ve been with an OEM piston is about .060, and is still running great today.
In my circle track days, we custom ordered pistons without reliefs so we could cut our own reliefs as tight as possible, to make as much compression as absolutely possible. With those slugs, we ordered the crowns thick enough to cut on without worry, yet the piston had to be as light as we could get it as well.
In my circle track days, we custom ordered pistons without reliefs so we could cut our own reliefs as tight as possible, to make as much compression as absolutely possible. With those slugs, we ordered the crowns thick enough to cut on without worry, yet the piston had to be as light as we could get it as well.
OEM pistons have little or no extra material under them. Hypereutectic cast pistons shatter like glass. I know people say they notch them but people skate on thin ice and sometimes bad things happen. Cutting material off them also changes their weight and there’s another problem.
