 Calculating compression ratio..., on a 1.7 with popups. |
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| BMXerror |
 Apr 13 2008, 09:14 PM
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Senior Member  Group: Members Posts: 1,705 Joined: 8-April 06 From: Hesperia Ca Member No.: 5,842  |
Anyone know the CCs of 1.7 heads and the bump on the Euro pistons? I am coming down to the wire on my build and need to know if the deck height needs to be changed at all. This info or any related info would be great. Thanks guys.
Mark D. |
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| JoeSharp |
Apr 14 2008, 09:03 AM
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In Irvine, Ca. May 15-18 Group: Members Posts: 3,947 Joined: 9-July 03 From: DeLand, Florida Member No.: 898 Region Association: South East States |
Mark, how many times have the heads been milled? I just had to do this on a T-1. I weighed 50cc's of water 3 times on a tripple beam and came out with an avarge weight of 54.2 gr. My heads on the type 1 are 51 cc's.
Remember that for every shim you add to the base you need to add that volume to the combustion chamber. That drops your C/R fast. |
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Posts in this topic
BMXerror Calculating compression ratio... Apr 13 2008, 09:14 PM
Dave_Darling Small changes to the head CCs or the dome/dish CCs... Apr 14 2008, 09:39 AM Mark Henry What Dave said....
To figure out the dome use mod... Apr 14 2008, 09:58 AM
toon1 I have the same combo.
If memory serves, the h... Apr 14 2008, 10:01 AM |
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