 what will my compression ratio be, maybe someone knows |
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| mightyohm |
 Apr 5 2004, 10:40 AM
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Advanced Member  Group: Benefactors Posts: 2,277 Joined: 16-January 03 From: Seattle, WA Member No.: 162 Region Association: Pacific Northwest   |
I am putting 96mm KB's into a 2.0 liter motor, stock crank, stock rods, heads will only have slight flycut (just enough to get sealing surfaces back). Cylinders are stock 94's bored out to 96.
What will my compression ratio be? I know this is a combo that many have looked at or built before. Maybe someone knows or has measured. I want to get an idea of where I will be with no additional mods. |
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| Brett W |
Apr 5 2004, 12:54 PM
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Advanced Member Group: Members Posts: 2,859 Joined: 17-September 03 From: huntsville, al Member No.: 1,169 Region Association: None 
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Depending on deck height and chamber volumn you are looking at between 8.9-9.75:1. On engines with as big a bore as ours 1cc doesn't make that big of a difference, about a .10 of a point. Hit the site:
http://www.rbracing-rsr.com/compstaticcalc.html The deck hieght will make a difference as well. If you want to measure your chamber volumn go to the vet and get the biggest syringe they have, take the needle out and get a piece of plexiglas to seal the top of the chamber. Fill the chamber and measure the amount from the ccs on the side of the syringe. |
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Posts in this topic
jkeyzer what will my compression ratio be Apr 5 2004, 10:40 AM
Mark Henry So class, here is the math quiz of the day.
Engi... Apr 5 2004, 11:00 AM Mueller Jeff,
the problem is whether or not your heads ha... Apr 5 2004, 11:08 AM Jake Raby Do NOT GUESS AT CHAMBER VOLUME! 1 cc means a w... Apr 5 2004, 11:21 AM Mark Henry :agree:
Even stock uncut heads can be 2-4 cc dif... Apr 5 2004, 11:28 AM jkeyzer I was not looking for an exact number but wanted t... Apr 5 2004, 11:39 AM Dave_Darling A head C kit is really complex, I don't know i... Apr 5 2004, 11:44 AM jkeyzer Ok so who wants to cut a perfectly round piece of ... Apr 5 2004, 11:49 AM Mueller Jeff,
I have a CC kit, you can use it as long as ... Apr 5 2004, 12:30 PM Mark Henry Dave's way is being a bit of a TW ;)
Just go... Apr 5 2004, 12:33 PM Mueller no need to have a round piece.......you can place ... Apr 5 2004, 12:42 PM jkeyzer Mike, why superclean? Apr 5 2004, 12:45 PM TonyAKAVW The answer is 42:1...
but what is the question... Apr 5 2004, 12:57 PM jkeyzer James Adams MarkV You can get a kit here:
http://www.vwalley.com/ Apr 5 2004, 01:29 PM
cgnj I'd ask them for the chamber volume. I still c... Apr 5 2004, 04:09 PM |
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