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| SteveNMaine |
 Dec 2 2024, 08:17 AM
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#1
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Newbie  Group: Members Posts: 7 Joined: 12-August 24 From: Maine Member No.: 28,288 Region Association: None  |
I am trying to work out compression ratio of my 2056 build. In calculating head volume my understanding from the forum is that stock 2.0 heads have 57mm and the valve pockets on the pistons I am going to use is 3mm. Do I add these together to use 60mm in my calculations for head volume?
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| Jack Standz |
Dec 2 2024, 10:41 PM
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#2
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Member Group: Members Posts: 397 Joined: 15-November 19 From: Happy Place (& surrounding area) Member No.: 23,644 Region Association: None |
QUOTE(SteveNMaine @ Dec 2 2024, 09:17 PM)  I am trying to work out compression ratio of my 2056 build. In calculating head volume my understanding from the forum is that stock 2.0 heads have 57mm and the valve pockets on the pistons I am going to use is 3mm. Do I add these together to use 60mm in my calculations for head volume? Yes, you add the combustion chamber volume to the volume of the valve pockets on the top of the pistons. You figure out these two volumes by doing what the above posters said. You actually measure the volume. Suggest you use one of those plastic circles with a hole drilled in it. Along with a burette with rubbing alcohol with a drop of food coloring in it. Best wishes for getting your compression ratio right. |
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Posts in this topic
SteveNMaine 2056 Build Dec 2 2024, 08:17 AM
Geezer914 Yes, anything that adds volume. Dec 2 2024, 09:25 AM technicalninja You should measure the valve depressions, head CCs... Dec 2 2024, 09:50 AM rfinegan IM doing this too..
This may help
https://www.yout... Dec 2 2024, 12:31 PM technicalninja Another tip is to reduce the surface tension of th... Dec 2 2024, 12:56 PM barefoot My understanding is that 2L heads are 60 cc and 1,... Dec 2 2024, 06:40 PM emerygt350 I used my kids crayon clay and compared it to oil,... Dec 3 2024, 06:25 AM 930cabman
I am trying to work out compression ratio of my 2... Dec 3 2024, 10:59 AM technicalninja
[quote name='SteveNMaine' post='3179889' date='De... Dec 3 2024, 12:16 PM porschetub Did all that when I did my last build for a custom... Dec 3 2024, 04:15 PM emerygt350 Well spent time. And on a type 4 it's some pre... Dec 3 2024, 04:55 PM technicalninja @porschetub The .028 on the top of the piston is... Dec 3 2024, 05:42 PM Jack Standz
[quote name='SteveNMaine' post='3179889' date='D... Dec 4 2024, 02:17 PM
technicalninja Jack, I am the TECHNICALninja...
I earned that na... Dec 4 2024, 04:27 PM |
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