hercalmighty Posted September 5, 2017 Report Share Posted September 5, 2017 Slomo, are you running a plate for the 4mil or are the domes cut for a 4mil? When I had my 4mil stock jug with cut domes I had 20cc domes and was pushing around 180-185 psi. Then I went to 23cc domes and was pushing around 160-165 psi. Sent from my VS990 using Tapatalk Quote Link to comment Share on other sites More sharing options...
SlowMoe Posted September 5, 2017 Author Report Share Posted September 5, 2017 We figured my UCCR is about 12.5-13.0:1. I will pull back timing and watch for signs of detonation and if need be mix in some race fuelSent from my iPhone using Tapatalk Quote Link to comment Share on other sites More sharing options...
gusto Posted September 5, 2017 Report Share Posted September 5, 2017 I knew i should have taken advanced math in high school. Quote Link to comment Share on other sites More sharing options...
gusto Posted September 5, 2017 Report Share Posted September 5, 2017 I graduated HS 25 years ago and havent done a math equation since. I am sure with some tutoring this would make sense. Conversions and formulas especially i have forgotten. Anyway dont want to ruin this thread with my math shortcomings. Quote Link to comment Share on other sites More sharing options...
SlowMoe Posted September 5, 2017 Author Report Share Posted September 5, 2017 Slomo, are you running a plate for the 4mil or are the domes cut for a 4mil? When I had my 4mil stock jug with cut domes I had 20cc domes and was pushing around 180-185 psi. Then I went to 23cc domes and was pushing around 160-165 psi. Sent from my VS990 using TapatalkNot running a spacer plate. Running 21cc stroker domes with 150 psi compression. Squish at .048"Sent from my iPhone using Tapatalk Quote Link to comment Share on other sites More sharing options...
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