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05-31-2013, 10:11 AM | #1 |
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Join Date: Apr 2013
Location: Southeastern Indiana
Posts: 32
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Engine Displacement Calculator
Wanted to share this link for a displacement calculator to add to your bookmarks.
http://www.bgsoflex.com/displacement.html Mark |
05-31-2013, 10:43 AM | #2 |
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Join Date: Jul 2010
Location: United Kingdom
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Re: Engine Displacement Calculator
Can someone explain why a cubic centimetre is not the same value a millilitre (and yes, we do spell them that way over here). My chemistry teacher a school several decades ago just mumbled.
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05-31-2013, 11:31 AM | #3 |
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Join Date: May 2010
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Re: Engine Displacement Calculator
I came up with 199 cu.in for an engine of 4.125 x 3.875 with a .040 oversize piston, The figure given in " The Ford Model A, As Henry Built It" is 200.5 cu.in. without the overbore. Something isn't right.
Terry |
05-31-2013, 11:44 AM | #4 |
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Join Date: Apr 2013
Location: Southeastern Indiana
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Re: Engine Displacement Calculator
Here is the information as I know it for a Model A engine
Mac's for example has a cheat sheet to use http://macsautoparts.com/ford-model-...ca/215/#engine Bore 3.875 Stroke 4.250 Giving this http://www.bgsoflex.com/cgi-bin/disp...50&mode=Inches So 40 oversize gives a whopping 5 CU more - no wonder I was able to pass that farm tractor yesterday http://www.bgsoflex.com/cgi-bin/disp...50&mode=Inches |
05-31-2013, 12:13 PM | #5 | |
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Join Date: May 2010
Location: Windy City
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Re: Engine Displacement Calculator
Quote:
More precision was needed for science and engineering during the industrial revolution. In 1889 the "Standard Kilogram" was created. This was supposed to be the same mass as 1 liter of water at 4 degrees celsius. (4°C is water's max density point, that is why the water at the bottom of a half-frozen lake is at 4°C, not 0°C.) The LITER then became officially defined as 1 kilogram of pure water at 4°C. There was a very small error detected in 1907. The "1889 Standard kilogram" was discovered to have a mass equal to 1000.028 cc of pure water at 4°C, not 1000 cc as originally intended. Using the "1889 Standard kilogram" water at 4°C equal to that mass occupied exactly 1000.028 cc., not 1000.000 cc Quite a screw up. It was decided in 1907 to leave the kilogram (mass) as the "Standard" and change the liter (volume standard) from it's original definition of a 10cm cube. Alternatives would have been to change the standard meter (length) or change the mass standard. So now 1 milliliter = 1.000028 cc and 1 cc = 0.999972 ml. There is also a story about whether the foot should be measured before or after the king trims his toenails, but that story stinks, so don't ask. |
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05-31-2013, 12:25 PM | #6 |
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Re: Engine Displacement Calculator
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05-31-2013, 01:22 PM | #7 |
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Join Date: May 2010
Location: Bucks Co, Pa
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Re: Engine Displacement Calculator
Ok Mark, Not being satisfied, I went out to an engine I'm rebuilding and measured the stroke, As you said, it's 4.250". Still not content, I went back to "As Henry Built It" and re read page17, eng. Specs., Bore and stroke, 3.875 X 4.125! Hmmmmm Not My error this time. Ok I'll recalculate.
Terry |
05-31-2013, 01:41 PM | #8 |
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Join Date: Dec 2012
Location: Enterprise, WV.
Posts: 460
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Re: Engine Displacement Calculator
I got 207 cid with .125 over size piston
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