Just a head up for anyone worried about their compression tests.
I tested a ton of Zs recently as I work/tune them everyday and most healthy ones are around 180-190 psi.
Keep in mind that most gauges vary a lot, even the same branded ones. I was able to get 220 psi on a older HF compression tester vs about 180 with a newly purchased one. Snap on tester were usually higher reading than the HF testers.
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Creator of the GTR TT Conversion Kit, NA Record Holder (401WHP)
Ecutek Master Tuner (VQ37, VR30, VR38, B58, S55, S58)
BTWTuning
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