Engine calculations - Club700XX - Honda TRX700XX Forum
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post #1 of 5 Old 05-27-2011, 05:58 PM Thread Starter
 
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Engine calculations

I am looking for 2 calculations .
The first is engine bore and stroke to engine cc's. I tried my own version and came to 745cc. I think I may of got this wrong.
The second is a calculation that calculates engine rpm to rear wheel rpm. It's on here somewhere but I cannot find it. it goes through all the gear ratios.

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post #2 of 5 Old 05-27-2011, 06:41 PM
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CCs should be Area of Bore (A)=Pi*R*R R=radius in cm. Then take (A)*stroke(in cm). Pretty much the volume of a cylinder equation.


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post #3 of 5 Old 05-27-2011, 11:15 PM
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Remember Bore is the full with of the cylinder but in calculating volume you need the radius which is half the bore.

bore is 102mm so. The the formula is Pi x 51 x 51 x 84

I use this calculator......you may need to drop a few numbers in there for the XX but it works.
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post #4 of 5 Old 05-28-2011, 08:35 AM
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http://nvmyz28.com/quads/displacement.html

Try this

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post #5 of 5 Old 05-28-2011, 11:05 AM Thread Starter
 
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Cheers Guys , I was off abit . Its 753cc +3 bore and +3 stroke.

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