the NA will read higher compression due to higher CR obliviously, but the srt6 will give a lower reading on your gauge, yetthe cylinder pressure durring high load is way higher than the NA due to the higher atmospheric pressure being fed to it when the SC clutch is activated.
what's the point of this thread?
Originally Posted by hemifire
I was looking at the parts catalog for the crossfire and came across a couple of intresting things. It lists the na compression at 10:1 and the SC compression at 9:1 . And I have also noticed that some of you SRT6 guys running larger crank pulleys are running about 22psi of boost. That seems extremely high for a car that has 9:1 compression ratio to start with.
So, what I was wondering is if any of you SRT guys have done a compression check and if so what were the results.
I'm going to do a compression check on my na as soon as i get the gauge from my brother.
The whole purpose is to verify the acual compression ratio on the two engines. I have a feeling that they are going to be identical. The short block part # 05114264aa has both egx(na) and egz(sc) listed as its application. Which means the limited and srt have the same short block. And I know they have the same heads so where is the difference in compression coming from?