piston displacement doubt
03-06-2011, 05:23 PM
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piston displacement doubt we all know that PD is (cylinder radius)2 x 3.1416 x stroke.
I was wondering myself if an engine with piston dome or dish piston would make this different, a dish would give us more volume in other way a dome would give us less volume, so Pd would change, couldn't find anything in web, what do you think about this?? is this unimportant??
I was wondering myself if an engine with piston dome or dish piston would make this different, a dish would give us more volume in other way a dome would give us less volume, so Pd would change, couldn't find anything in web, what do you think about this?? is this unimportant??
03-06-2011, 06:49 PM
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it doesn't matter if you have a 20 cc dome or a 20 cc dish the piston is still the same diameter, and the distance moved is still the same.
The formula doesn't take into account this because it completely irrelevant for computing volume for engine displacement
The formula doesn't take into account this because it completely irrelevant for computing volume for engine displacement
03-06-2011, 06:58 PM
#5
The change is so small that is doesn't matter. A 5700cc engine +/- 20 per piston will change the overall volume but like said it's not important really in any way. Engine block size is bore x stroke. Compression ratio is the only place the dome or dish cc matters.
