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| Built 4g67/G4CN http://4g61t.org/forum/viewtopic.php?f=6&t=40608 |
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| Author: | Moulin13 [ Fri Oct 07, 2016 9:35 pm ] |
| Post subject: | Re: Built 4g67/G4CN |
Quote: Have you thought about doing an actual compression test on this engine to see if it's higher/lower than stock or that of a 4g63t? It won't tell you your exact CR but it will tell you something.
I did the math using this calculator: http://www.csgnetwork.com/compcalc.html According to my numbers I got 8.0:1 to 8.1:1 CR on the 4g67, which is not bad for boost and considering the abuse that has been getting at @25+psi it seems to be accurate... |
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