riggsracin Posted November 16, 2009 Report Share Posted November 16, 2009 its a banshee witha 5mm long rod crank, 17cc domes, t5 pipes 2n1 lectron carb. how much oct should i run? and what oil and gas premix Quote Link to comment Share on other sites More sharing options...
98_shee Posted November 16, 2009 Report Share Posted November 16, 2009 You need to do a compressoin test to figure out your octain (with 17cc domes your probably gonna need 110). Also do you have a timing plate on it if so what is it set at? Do the test and let us know what your psi is. As far as oil I run 927 40:1 with 110 oct, but what oil you run is your choice there is alot of good oil out there. Quote Link to comment Share on other sites More sharing options...
riggsracin Posted November 16, 2009 Author Report Share Posted November 16, 2009 im gonna add a +4mm degree key Quote Link to comment Share on other sites More sharing options...
riggsracin Posted November 16, 2009 Author Report Share Posted November 16, 2009 (edited) so what oct do u all recommend for a banshee with 5mm long rod crank, 17cc domes, t5 pipes 2n1 lectron carb 4mm degree key and the bike is also ported Edited November 16, 2009 by riggsracin Quote Link to comment Share on other sites More sharing options...
AKheathen Posted November 16, 2009 Report Share Posted November 16, 2009 what kind of port? Quote Link to comment Share on other sites More sharing options...
riggsracin Posted November 16, 2009 Author Report Share Posted November 16, 2009 i dont know it was ported when i got it Quote Link to comment Share on other sites More sharing options...
riggsracin Posted November 16, 2009 Author Report Share Posted November 16, 2009 i was thinking straight 110 what do u guys think? Quote Link to comment Share on other sites More sharing options...
riggsracin Posted November 17, 2009 Author Report Share Posted November 17, 2009 i was thinking straight 110 what do u guys think? it had 167 before the pistons chip Quote Link to comment Share on other sites More sharing options...
AKheathen Posted November 17, 2009 Report Share Posted November 17, 2009 167? what's your elevation? Quote Link to comment Share on other sites More sharing options...
riggsracin Posted November 17, 2009 Author Report Share Posted November 17, 2009 according to the e finder 700ft Quote Link to comment Share on other sites More sharing options...
AKheathen Posted November 18, 2009 Report Share Posted November 18, 2009 what is your squish set @? you'll probably do pretty good with 100ll avgas, or 50/50 100ll and 110. you will want an oil that supports the oxegenated and race fuels/those with higher s.g. it will say on the back. as for brand, just pick a quality brand that you have normal access to, and search independant reviews. brand choice will get 100 different answers, and the manufacurers reviews are always skewed. as for mixture, i always base it on the jetting requirements. likely you will end up @ 40:1 for best results, but you may want to start with 32:1 and see how that runs. that also depends on the oil,, too. Quote Link to comment Share on other sites More sharing options...
riggsracin Posted November 18, 2009 Author Report Share Posted November 18, 2009 what oil would u run? what about a colder plug? will 110 out of the pump work? Quote Link to comment Share on other sites More sharing options...
jlevasseur Posted November 18, 2009 Report Share Posted November 18, 2009 what oil would u run? what about a colder plug? will 110 out of the pump work? I would run a B8Es spark plug gapped at 28 thousands. I would try either gold in spectra or Klotz but theres a lot of good pre mix'es to use. I would run atleast a 40:1 ratio. 110 race gas would work just fine, If you want to keep the cost down on gas do 50/50. Quote Link to comment Share on other sites More sharing options...
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