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an ej8 coupe
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a couple thousands of an inch. it also depends on the piston to wall clearance and how much the cylinder is worn.
 

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()*#$(*$
93 Legend L Coupe.
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11,404 Posts
Not very much at all since they usually only hit one side of the cylinder or another, depending on which part of the combustion cycle they are going through. Also, with good pistons there shouldn't be much rock due to the skirt keeping the pistons in place
 

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See above...
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I measured my pistons moved 2 ten thousandths of an inch @ 10k rpms. Measurement was done with a ruler.
 

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lmao!! these guys are crazy lol
but why would u wana kno? im sure there is a "perfect situation" formula where u would have to factor in the expansion of the pistons and cyl temp and all that tech. bs *RABLE**RABLE**RABLE**RABLE**RABLE**RABLE**RABLE**RABLE* ...i dont think it is relevant unless ur building a f1 engine.
 

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96,97,00 civic
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lmao!! these guys are crazy lol
but why would u wana kno? im sure there is a "perfect situation" formula where u would have to factor in the expansion of the pistons and cyl temp and all that tech. bs *RABLE**RABLE**RABLE**RABLE**RABLE**RABLE**RABLE**RABLE* ...i dont think it is relevant unless ur building a f1 engine.
It's always relevant. Ever ride in a 5.3 1500?
 

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My car...
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Discussion Starter #14
lmao!! these guys are crazy lol
but why would u wana kno? im sure there is a "perfect situation" formula where u would have to factor in the expansion of the pistons and cyl temp and all that tech. bs *RABLE**RABLE**RABLE**RABLE**RABLE**RABLE**RABLE**RABLE* ...i dont think it is relevant unless ur building a f1 engine.
Honestly, I don't know why I want to know. Part of why I ask is because of the size of valve reliefs in Pistons...
 
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