Did a quick search on this and i haven't found much in the recent years since billet cylinders have become more common in skis. Im starting to see the light at the end of the tunnel for my flatwater build and started looking at what fuel i want to get on order with my distro. With so many options out there now I'd like to have some input from people that have played with fuels (higher OCT, non oxygenated vs oxygenated vs a mix of both. The kicker here is that the lake i ride at mostly is right around 3600ft above sealevel. Me and the motor builder had a chat about this and figured that if he cut the domes for "220"psi at Sealevel then that should put me around "190"psi here with the elevation. I still want to run race fuel just for the peace of mind of keeping my new superbore stock stroke motor happy as possible. Also prop choice had the elevation in mind too for what it matters.
I raced dirtbikes for a good chunk of my life and always ran oxygenated fuels to get the most out of the motors (wether it was 2t or 4t). On 2 strokes if we knew we were going to a track at much higher elevation we would switch to a higher oxygen fuel like MRX02 to help get some oxygen and power back and keep jetting changes to a minimum. Knowing that this ski will probably burn 5x the fuel a 250 2 stroke dirtbike will, I don't think ill be wanting to spend $150+ on 5 gal pails of MRX weekly.
Looking through the VP fuel charts and from first hand experience im thinking something like a 50/50 mix of VPR or U4.4 cut with VP110 or C12 at my lake to get some oxygen. Then if i ever go to havasu or somewhere else closer to sea level ill try and run a non Oxygenated fuel like VP110 or C12 straight to try and keep the power and jetting close to the same? Maybe my mind is just swirling with these ideas but i figured it's a good topic to get some insight on from people with more experience with fuel testing. Im also not against running VPR, U4.4, (or something similar lower priced with oxygenation) straight at my lake if it will help a good bunch with the power.
I've seen some pro 1200 guys running MS109 and a few guys running straight C12 so i just would like to hear some first hand experiences from people that have done some testing with this!
I raced dirtbikes for a good chunk of my life and always ran oxygenated fuels to get the most out of the motors (wether it was 2t or 4t). On 2 strokes if we knew we were going to a track at much higher elevation we would switch to a higher oxygen fuel like MRX02 to help get some oxygen and power back and keep jetting changes to a minimum. Knowing that this ski will probably burn 5x the fuel a 250 2 stroke dirtbike will, I don't think ill be wanting to spend $150+ on 5 gal pails of MRX weekly.
Looking through the VP fuel charts and from first hand experience im thinking something like a 50/50 mix of VPR or U4.4 cut with VP110 or C12 at my lake to get some oxygen. Then if i ever go to havasu or somewhere else closer to sea level ill try and run a non Oxygenated fuel like VP110 or C12 straight to try and keep the power and jetting close to the same? Maybe my mind is just swirling with these ideas but i figured it's a good topic to get some insight on from people with more experience with fuel testing. Im also not against running VPR, U4.4, (or something similar lower priced with oxygenation) straight at my lake if it will help a good bunch with the power.
I've seen some pro 1200 guys running MS109 and a few guys running straight C12 so i just would like to hear some first hand experiences from people that have done some testing with this!
