Cubshee421 Posted January 2, 2015 Report Share Posted January 2, 2015 18 cc domes on a 421 cub I get 180 psi. Does this sound about right? Quote Link to comment Share on other sites More sharing options...
Nightmare Posted January 2, 2015 Report Share Posted January 2, 2015 What's your elevation? Quote Link to comment Share on other sites More sharing options...
Cubshee421 Posted January 2, 2015 Author Report Share Posted January 2, 2015 Sea level Quote Link to comment Share on other sites More sharing options...
possum Posted January 2, 2015 Report Share Posted January 2, 2015 no Quote Link to comment Share on other sites More sharing options...
Surfrjag Posted January 2, 2015 Report Share Posted January 2, 2015 What base gasket and squish have you got? Quote Link to comment Share on other sites More sharing options...
Cubshee421 Posted January 2, 2015 Author Report Share Posted January 2, 2015 .015 base not sure about squish Quote Link to comment Share on other sites More sharing options...
Nightmare Posted January 2, 2015 Report Share Posted January 2, 2015 I'm at 165 at 5000ft running 18cc domes with 110. Quote Link to comment Share on other sites More sharing options...
trickedcarbine Posted January 2, 2015 Report Share Posted January 2, 2015 Sounds close if there isn't any exhaust work. Quote Link to comment Share on other sites More sharing options...
Cubshee421 Posted January 3, 2015 Author Report Share Posted January 3, 2015 Should be fine 100LL @7degree timing drag race only Quote Link to comment Share on other sites More sharing options...
oldskool Posted January 3, 2015 Report Share Posted January 3, 2015 Should be fine 100LL @7degree timing drag race only I would like to know how this works for you. Quote Link to comment Share on other sites More sharing options...
banshee4mil Posted January 11, 2015 Report Share Posted January 11, 2015 sounds about right to me? roughly 10PSI per CC depending on porting.... i run custom cut domes but typically their 22CC giving me roughly 140psi with .060 squish im curious how did you get 10 psi per cc, Quote Link to comment Share on other sites More sharing options...
trickedcarbine Posted January 11, 2015 Report Share Posted January 11, 2015 That is the typical way it works out on stock jug stuff. Quote Link to comment Share on other sites More sharing options...
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