siezed-up Posted July 2, 2008 Report Share Posted July 2, 2008 Hi, I guess I'm new to a stock Banshee. I've built a couple with close to 200 psi compression, but I can't find what the minimum compression values should be for a stock shee. I did a search here but I got into way more stuff than expected. I'm running about 120psi on each cyl. If elevation is an issue I'm about 2000ft above sea lev. Quote Link to comment Share on other sites More sharing options...
black sunshine Posted July 2, 2008 Report Share Posted July 2, 2008 Sounds high, may be your guage. Stock is around 125psI@sea level Quote Link to comment Share on other sites More sharing options...
mopar1rules Posted July 3, 2008 Report Share Posted July 3, 2008 (edited) no that doesn't sound high. sounds just about right. actually, sounds perfect. Edited July 3, 2008 by mopar1rules Quote Link to comment Share on other sites More sharing options...
05.Banshee.SE Posted July 3, 2008 Report Share Posted July 3, 2008 Stock (AVERAGES): Sea Level: 130PSI 1000': 125PSI 2000': 118PSI 3000': 112PSI 4000': 106PSI 5000': 100PSI Sounds like you're good then. Quote Link to comment Share on other sites More sharing options...
mopar1rules Posted July 4, 2008 Report Share Posted July 4, 2008 here's what i found @ nossmachine.com : Sea Level 1000' 2000' 3000' 4000' 5000' 18cc 197 178 171 170 165 145 19cc 183 167 160 158 152 137 20cc 169 156 149 146 140 129 21cc 156 145 138 134 128 121 stock 130 125 118 112 106 100 Quote Link to comment Share on other sites More sharing options...
ClimbAnyHill Posted July 4, 2008 Report Share Posted July 4, 2008 120 sounds right for your elevation! it prob be perfect at sea level. I would get that stock head milled and bump up the compression! Quote Link to comment Share on other sites More sharing options...
mopar1rules Posted July 5, 2008 Report Share Posted July 5, 2008 I would get that stock head milled and bump up the compression! i agree. shave it .020" to .030" and call it a day. Quote Link to comment Share on other sites More sharing options...
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