M7FREAK Posted June 2, 2012 Report Share Posted June 2, 2012 Hi, I have a Banshee that I just purchased. I am trying to figure out what fuel to run through it. The previous owner ran 50/50 92 110 through it. It has T-5's 28MM Keihin and a cool head and that's about all I know about it. I decided to do a compression test tonight and it was right at 180 at sea level. I am thinking it has 19cc domes and my gut is telling me to run straight 110. Cascade in Portland did the work but unfortunately they can't tell me anything about it. I don't know if it's ported or stock bore or advanced timing. Also, I'm heading to St Anthony is a few weeks and it's going to be hot so that's making me lean towards 110 as well.. You guys agree? Thanks for any input. Mark Quote Link to comment Share on other sites More sharing options...
Burt Reynolds Posted June 2, 2012 Report Share Posted June 2, 2012 180 is high on a banshee,your going to need some hi octane fuel thats for sure. Quote Link to comment Share on other sites More sharing options...
Nieskes Posted June 2, 2012 Report Share Posted June 2, 2012 What sea level are you at? Quote Link to comment Share on other sites More sharing options...
beez33 Posted June 2, 2012 Report Share Posted June 2, 2012 Run straight race gas until you open it up and see what you have. Better be safe then sorry. Gonna need to bring some jets when you go to st. Anthonys. Quote Link to comment Share on other sites More sharing options...
shakar Posted June 2, 2012 Report Share Posted June 2, 2012 im at sealevel with 20cc domes. when the motor was fresh i only had 145psi.so im guessing you at 18 or smaller. pop the head off and check it out and order smaller domes if needed. piece a cake goodluck Quote Link to comment Share on other sites More sharing options...
M7FREAK Posted June 2, 2012 Author Report Share Posted June 2, 2012 What sea level are you at? I am on the Oregon Coast. Thanks for the input guys. I am going to run straight 110 to be safe. At some point I will open it up, I am curious to see what's done to it. Thanks! Quote Link to comment Share on other sites More sharing options...
M7FREAK Posted June 2, 2012 Author Report Share Posted June 2, 2012 Run straight race gas until you open it up and see what you have. Better be safe then sorry. Gonna need to bring some jets when you go to st. Anthonys. Thanks. it has 165's in it now I am taking 160's and 155's.... Hopefully one of those will work. Quote Link to comment Share on other sites More sharing options...
Nightmare Posted June 2, 2012 Report Share Posted June 2, 2012 I would take a few more jets. Going from sea level to 5000ft is a big jump. Just my .02 Quote Link to comment Share on other sites More sharing options...
RadarRacing Posted June 2, 2012 Report Share Posted June 2, 2012 Just like they said. 180 psi will need race gas. Going to 5000 feet may need a few jet sizes down. Quote Link to comment Share on other sites More sharing options...
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