Could you help me calculate my setup?

[4drteg54321]

I want to know my compression.

Stock Gsr head
Oem HG
Ls block, crank, rod
type r piston usdm

 

[BrutalB83]

There are several Honda/Acura compression calculators available online. Google it...

 

[George777]

http://www.zealautowerks.com/index.html

 

[awptickes]

https://hondaswap.com/general-tech-articles/how-compute-compression-ratio-motor-29101/

 

[awptickes]

Here's the one that immediately came to mind:

How To Measure for Compression Ratio Calculations / Vitara Evaluation