Displacement equation?
03-17-2002, 01:39 PM
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Re: Displacement equation? (lswithvtec)
no, thats not it. If that were the case, my b18b would be 28188 CC's. Its like .8668 or somthing, I cant remeber.
03-17-2002, 06:17 PM
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Re: Displacement equation? (BLK94RS)
(1/2(Bore in CM) squared) * 3.1459 * Stroke * cylinders.
For example on a d16, 75 MM bore with 90MM stroke:
1/2(7.5CM ) squared * 3.1459 * 9 CM * 4 = 1592 CC
Check 'volume of a cylinder' in the geometry book
For example on a d16, 75 MM bore with 90MM stroke:
1/2(7.5CM ) squared * 3.1459 * 9 CM * 4 = 1592 CC
Check 'volume of a cylinder' in the geometry book
03-17-2002, 06:32 PM
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Re: Displacement equation? (BLK94RS)
Volume of a cylinder =
pi * r² * stroke ... or
pi * (bore/2)² * stroke
then multiply by the number of cylinders to get total engine displacement.
pi * r² * stroke ... or
pi * (bore/2)² * stroke
then multiply by the number of cylinders to get total engine displacement.
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03-17-2002, 07:39 PM
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Re: Displacement equation? (The Mick)
Okay, I know I can get it that way, but awhile back I saw a really easy equation that just involved 3 numbers multiplyed by each other. I remeber playing with it a bit, but I can remeber what the third number was. I know for sure it was bore x stroke x another number like .8933423 (some long decimal). Or was I just dreaming?
03-17-2002, 10:19 PM
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Re: Displacement equation? (BLK94RS)
03-17-2002, 11:04 PM
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Re: Displacement equation? (drealgsr)
BORE X BORE X STROKE X .0031416 = DISPLACEMENT in CC
03-18-2002, 03:20 AM
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Re: Displacement equation? (BLK94RS)
quote:
--------------------------------------------------------------------------------
BORE X BORE X STROKE X .0031416 = DISPLACEMENT in CC
--------------------------------------------------------------------------------
Thank you, thats what I was looking for!!!!!!!!! I was really starting to wonder if I dreamed the equation!!!!
Ummmm, Okay, but you do realize this is the same equation everyone else gave you 3-4 times!
--------------------------------------------------------------------------------
BORE X BORE X STROKE X .0031416 = DISPLACEMENT in CC
--------------------------------------------------------------------------------
Thank you, thats what I was looking for!!!!!!!!! I was really starting to wonder if I dreamed the equation!!!!
Ummmm, Okay, but you do realize this is the same equation everyone else gave you 3-4 times!
03-18-2002, 03:58 AM
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Re: Displacement equation? (jthelman)
I put it in the simplest form since it's the easiest to comprehend! 
I have more equations/calculator links somewhere!
https://honda-tech.com/zerothread?id=125034
I have more equations/calculator links somewhere!
https://honda-tech.com/zerothread?id=125034
03-18-2002, 07:52 AM
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Re: Displacement equation? (BLK94RS)
Yeah, I gave you the wrong equation. I think my equation would give you the area of the walls of the cylinders, though!
Yeah....that's kind of useless
Damn! Five years of college down the drain!
pi * r² * stroke * cylinders is the right one.
[Modified by Lsos, 4:53 PM 3/18/2002]
Yeah....that's kind of useless
Damn! Five years of college down the drain!
pi * r² * stroke * cylinders is the right one.
[Modified by Lsos, 4:53 PM 3/18/2002]
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