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Whos good at math?

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Old 04-22-2008, 12:21 AM
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Default Whos good at math?

If i have a d17a2 and the head was milled 30/1000inch and the current compression is 9.9:1 the bore is 75mm and the stroke is 94.4mm. What is my new compression ratio going to sit around? Ps i ride the fail boat at math.
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Old 04-22-2008, 12:34 AM
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Default Re: Whos good at math?

https://www.homemadeturbo.com/forum/...?topic=37957.0
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Old 04-22-2008, 12:46 AM
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Default Re: Whos good at math?

Already tried that and it wont work because i dont have the piston displacement or head cc size for a d17a1/d17a2 hybrid. stock my motor is 9.5:1 and the d17a2 stock is 9.9:1 and the d17's share the same bottom end. I just need to figure out how many less cc's it is for 30/1000inch and enter that into the calulator.
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Old 04-22-2008, 01:26 AM
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Default Re: Whos good at math?

go CC, you could work the problem backwards and find total cc volume.
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Old 04-22-2008, 02:33 AM
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Default Re: Whos good at math?

http://www.zealautowerks.com/dseries.html Looks like around 10.6?
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Old 04-22-2008, 03:03 AM
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Default Re: Whos good at math?

i added ---- up to 10.26
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Old 04-22-2008, 03:05 AM
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Default Re: Whos good at math?

Originally Posted by crxtuner
Already tried that and it wont work because i dont have the piston displacement or head cc size for a d17a1/d17a2 hybrid. stock my motor is 9.5:1 and the d17a2 stock is 9.9:1 and the d17's share the same bottom end. I just need to figure out how many less cc's it is for 30/1000inch and enter that into the calulator.
you need the volume of a cylinder (not the cylinder) easy. (bore/2)^2 x pi x (3/100)
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