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Projects & Parts => Garage/Tech => Topic started by: 84silverado on July 22, 2012, 03:45:58 PM

Title: how do i figure out my engines compression ratio???
Post by: 84silverado on July 22, 2012, 03:45:58 PM
if anybody could get me the formula or a calculator for it i would appriciate it!!!
Title: Re: how do i figure out my engines compression ratio???
Post by: black07ss on July 22, 2012, 04:27:00 PM
http://www.csgnetwork.com/compcalc.html (http://www.csgnetwork.com/compcalc.html)
Title: Re: how do i figure out my engines compression ratio???
Post by: 84silverado on July 22, 2012, 08:04:11 PM
Thank you
Title: Re: how do i figure out my engines compression ratio???
Post by: 4x4xdodgeman on July 22, 2012, 10:59:04 PM
what do you have for piston in your motor? and what is your motor?   cause the heads that you got to put on it are open chamber. ( 882)
Title: Re: how do i figure out my engines compression ratio???
Post by: 84silverado on July 23, 2012, 01:53:16 PM
i have a 350 bored .30 over. dish pistons....and i did my math and now i know why my motor "pings" cause i need a higher octane fuel, what a suprise loll
it didnt start till i finally got a intake that actually fit over the intake runners. o'well, gotta do what you gotta do
Title: Re: how do i figure out my engines compression ratio???
Post by: 4x4xdodgeman on July 23, 2012, 02:28:22 PM
you have dome pistons not dish piston?  dish is stock pistons.
Title: Re: how do i figure out my engines compression ratio???
Post by: 84silverado on July 23, 2012, 02:57:03 PM
then i have stock pistons, cause mine are dish
Title: Re: how do i figure out my engines compression ratio???
Post by: betterbeaters on July 23, 2012, 03:16:12 PM
what compression are you?  and whats your timimg set at?
Title: Re: how do i figure out my engines compression ratio???
Post by: 84silverado on July 23, 2012, 03:28:42 PM
my math says i have 12.1 compression..my timing is stock
Title: Re: how do i figure out my engines compression ratio???
Post by: betterbeaters on July 23, 2012, 03:37:53 PM
get race fuel 110oct only if your that much comp.. and you time should be able to go up! lol
Title: Re: how do i figure out my engines compression ratio???
Post by: betterbeaters on July 23, 2012, 03:38:27 PM
also what cc chamber heads do you got?
Title: Re: how do i figure out my engines compression ratio???
Post by: 84silverado on July 23, 2012, 03:44:12 PM
yea i want to time and advance it in more but i dont have a light and the only person with one i know is family and theres some issues there.... and my heads are 59 cc chambers
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