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Posted

why can a rz run on 85 octane gas but the banshee at the same psi has to run 91-93 ? any idea what psi you can 85, 87, and 91 ( CALIFORNIA premium ) octane at ? a recent thread said it would be difficult to get a 2 stroke that would have too high a compression to run 93 octane unless it hade ignition advance but we only have the piss poor 91 octane stuff

Posted

Found this over at ps.

16 cc 210 lbs. - 115 Octane

17 cc 200 lbs. - 112 Octane

18 cc 190 lbs. - 110 Octane

19 cc 180 lbs. - 105 Octane

20 cc 170 lbs. - 98 Octane

21 cc 160 lbs. - 91 Octane

22 cc 150 lbs. - 91 Octane

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