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The Terminator
Engine/Tuning
Bore .020” over, or hone with new rings?
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<blockquote data-quote="03' White Snake" data-source="post: 16920179" data-attributes="member: 51916"><p>You should buy the pistons first and have the machine shop size the bore to the pistons. Not all pistons run the same piston to wall gap. I have custom diamond pistons, the machine shop gave me a clearance of 0.006 vs the 0.012 they called for. Said they would be very noisy and cause excessive wear until warmed up. They are race pistons. Told me the 0.006 is more for a street setup.</p><p></p><p>I did go 0.020 over on my setup. Ideally you want the thickness cylinder wall as possible for strength. But under 1200 hp you have nothing to worry about.</p><p></p><p>My pistons are hardcoat anodized with the moly skirt coating. -5.22 dish with reliefs and tool steel wrist pins. On 22 psi E85, she makes 829 hp, 747 tq for reference. I calculate the CR to 10.4.</p></blockquote><p></p>
[QUOTE="03' White Snake, post: 16920179, member: 51916"] You should buy the pistons first and have the machine shop size the bore to the pistons. Not all pistons run the same piston to wall gap. I have custom diamond pistons, the machine shop gave me a clearance of 0.006 vs the 0.012 they called for. Said they would be very noisy and cause excessive wear until warmed up. They are race pistons. Told me the 0.006 is more for a street setup. I did go 0.020 over on my setup. Ideally you want the thickness cylinder wall as possible for strength. But under 1200 hp you have nothing to worry about. My pistons are hardcoat anodized with the moly skirt coating. -5.22 dish with reliefs and tool steel wrist pins. On 22 psi E85, she makes 829 hp, 747 tq for reference. I calculate the CR to 10.4. [/QUOTE]
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The Terminator
Engine/Tuning
Bore .020” over, or hone with new rings?
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