bluebanshee1998 Posted February 23, 2010 Report Share Posted February 23, 2010 i have a 1998 banshee with pro circuit pipe v force 3 reeds boost bottle k&n with pro flow adapter open air box and a trinity stage 4 cool head with 18 cc domes my question is what gas should i run with it i can get av gas or turbo blue racing fuel and i run benol just wondering which would be the best thanks Quote Link to comment Share on other sites More sharing options...
GrMeyer Posted February 23, 2010 Report Share Posted February 23, 2010 Whats your compression? Do you have port work done? Quote Link to comment Share on other sites More sharing options...
bluebanshee1998 Posted February 24, 2010 Author Report Share Posted February 24, 2010 Whats your compression? Do you have port work done? no porting done and i dont know the compression i ordered the cool head and it hasn't came in yet the place i ordered it from said i would need race fuel and i didn't know what the difference would be between turbo blue and av gas. Quote Link to comment Share on other sites More sharing options...
GrMeyer Posted February 24, 2010 Report Share Posted February 24, 2010 Which turbo blue are you talking about? Just Turbo blue being 110 AVgas is 100LL which is 100 oct and LL meaning Low Lead. You need to find out what the compression is going to be with the 18cc. What elevation are you at? If you are below 4000ft for a rough guess. You will need the turbo blue being the compression will prob be in the 170ish. If you shoot to have a compression around 155. Then the 100 you can run. I run a 50/50 mix of 91 and 100ll with my timing at +4. But it will also depend on how well your top end is sealing. But here is another ? for you. Why are you wanting to run that high of compression? Do you have a stock crank? or is the crank True and weld? Because with that much compression, i dont see your crank lasting long. Quote Link to comment Share on other sites More sharing options...
jbooker82 Posted February 24, 2010 Report Share Posted February 24, 2010 I would run turbo blue over av fuel. Race fuel is blended for maximum performance on the surface. AV gas is made to run at high altitudes as in an air plane in the air. That and air plane engines run at a way lower rpm. Quote Link to comment Share on other sites More sharing options...
Alex29573 Posted February 24, 2010 Report Share Posted February 24, 2010 (edited) i dont think it matters what psi the gauge says (especially after porting).. Im pretty sure his uncorrected compression ratio is more important. Maybe someone else can help me out with this though Edited February 24, 2010 by Alex29573 Quote Link to comment Share on other sites More sharing options...
bluebanshee1998 Posted February 24, 2010 Author Report Share Posted February 24, 2010 (edited) Which turbo blue are you talking about? Just Turbo blue being 110 AVgas is 100LL which is 100 oct and LL meaning Low Lead. You need to find out what the compression is going to be with the 18cc. What elevation are you at? If you are below 4000ft for a rough guess. You will need the turbo blue being the compression will prob be in the 170ish. If you shoot to have a compression around 155. Then the 100 you can run. I run a 50/50 mix of 91 and 100ll with my timing at +4. But it will also depend on how well your top end is sealing. But here is another ? for you. Why are you wanting to run that high of compression? Do you have a stock crank? or is the crank True and weld? Because with that much compression, i dont see your crank lasting long. not for sure what elevation i am at i live in south Arkansas i just have a stock crank not welded that i know of bought it used a couple years ago and it had all stock parts on it and i was wanting that much compression because i like to drag race it and i ride gravel roads very little just mostly racing the turbo blue i am talking about is the 110 Edited February 24, 2010 by bluebanshee1998 Quote Link to comment Share on other sites More sharing options...
Banshee Roost Posted March 13, 2010 Report Share Posted March 13, 2010 You need the 110! Quote Link to comment Share on other sites More sharing options...
midlifecrisis Posted March 13, 2010 Report Share Posted March 13, 2010 You can get your elevation from google earth just use your address. Quote Link to comment Share on other sites More sharing options...
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