icecold_shee Posted June 28, 2005 Report Share Posted June 28, 2005 (edited) I have a 2000 banshee, stock pistons, cool head 20cc domes, t5 pipes silencers, 340 main jets in stock carbs, v-force reeds, previous owner always ran vp c-12 racing fuel, 6.00$ a gallon, can i get away with 91 or 93 octance, please fill me in with your opinions, dont know 2-strokes that well, thanks, anyone from oklahoma, going to little sahara soon. forgot to mention that it does have a vitos 4 degree timing key, not sure if that matters or not, i have ran it on 91 and it ran real good, just didnt know with the jetting if it was set up specifically for vp c-12, thanks for any help Edited June 29, 2005 by icecold_shee Quote Link to comment Share on other sites More sharing options...
sredish Posted June 28, 2005 Report Share Posted June 28, 2005 Way to tell for sure would be to take a compression reading in the cylinders, but chances are with the 20cc domes, you'll probably be able to get by with 93. Don't know if the 2 points makes much difference but I'd run 93 over 91. If your unsure, you could mix the 93 with some VP half and half, but no, straight VP is not necessary. Quote Link to comment Share on other sites More sharing options...
fastbanshee4u Posted June 28, 2005 Report Share Posted June 28, 2005 You should be safe with 93 octane. Race gas doesnt give you more power anyways ,just keep from detenation under higher compression like over 160 psi. Quote Link to comment Share on other sites More sharing options...
wayfst Posted June 29, 2005 Report Share Posted June 29, 2005 check your timing if your over 4 degrees you'll need to back it down for 93. Quote Link to comment Share on other sites More sharing options...
Travis's Banshee Posted June 29, 2005 Report Share Posted June 29, 2005 W/20cc domes, You can definately get by w/93. That was a similar setup to ours before we switched to 18cc domes. Now were 167psi and need to run race gas. Quote Link to comment Share on other sites More sharing options...
cb67rs1 Posted June 29, 2005 Report Share Posted June 29, 2005 you know i use to run vp-12 all the time, i was going to ride with some buddies not long ago and i ran just regular 93 pump and that sum bitch ran a hell of alot better and faster on pump gas! Quote Link to comment Share on other sites More sharing options...
9603banshee Posted June 29, 2005 Report Share Posted June 29, 2005 pump gas will be fine Quote Link to comment Share on other sites More sharing options...
sredish Posted June 29, 2005 Report Share Posted June 29, 2005 you know i use to run vp-12 all the time, i was going to ride with some buddies not long ago and i ran just regular 93 pump and that sum bitch ran a hell of alot better and faster on pump gas! 386775[/snapback] you know, some motors that race fuel isn't necessary in, when you put race fuel in them, they don't necessarily run worse, but they're not quite as responsive sometimes. this is because, for optimum combustion, the higher octane needs that extra squeeze of combustion and it just doesn't get it so it causes the combustion to be short of ideal, if that makes sense. The best thing to do is always run the fuel your motor is setup for. Quote Link to comment Share on other sites More sharing options...
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