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I know there was a recent thread about this but it didn't answer all my questions. I ran Sunoco 110 cut with non ethanol 91, in my 15 kawi 450. Practice 1st kick started, Moto 1 3-4 kicks, 2nd Moto it was a 10-15 kicks to start! It ran awesome the whole day when racing!! So my question is was it the gas? My buddy says switch to vp u4.4 as Sunoco is trash! It's also a lot cheaper than vp.
Ps I'm getting my valves checked today by the dealer but they said it was also the gas, cuz its leaded!
Pss I'm new to forum so I'll say it myself STFU newbie
Ps I'm getting my valves checked today by the dealer but they said it was also the gas, cuz its leaded!
Pss I'm new to forum so I'll say it myself STFU newbie
on a side note we've ran Sunoco and VP both, Sunoco is not trash but IMO VP is a better fuel.
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Turn throttle farther than 1/2 way. You'll be surprised. Also, kids on 85s wont pass you so easily.
Gary Bailey used to teach students that.
Also, the octane # on the pump is not always what you go by. If your manufacturer specs an octane that is "research method" or "motor method" then you need to deviate from what it says on the pump. Pump gas octane is research + motor / 2. Research method tends to yield about 8-10 higher octane rating than motor. So 91 at the pump is about 96 research method and 86 motor method.
It's good to avoid ethanol because it can cause corrosion to fuel lines and seals.
With some of the stronger fuels like MR12 you need to drain your tank if your not riding within 3-4 days because it will eat your seals. VP says T4 can stay in the tank for 4 months.
Pit Row
Unless a fuel is oxygenated(In California its Ethanol) whats the point? Remember U4.4E? The E meant Ethanol. Same as Pump gas. U4.4 was MTBE as the Oxygenate
I dont even think they can sell fuels with MTBE as an oxygenate in CA and many other states at all anymore for any use. Alot of other oxygenates are banned in CA also.
Keep in Mind, Ethanol doesn't gum up stuff per se, otherwise EVERY car and motorcycle on the road would be fucked up.
What alcohol does is attract water, and when it sits, thats where problems come from. The water is what causes corrosion.
Everything made since the advent of Ethanol in Fuel is meant to handle ethanol at about a 10% ratio. Flex vehicles are built to obviously handle an 85% concentration.
Any issues with it is very easily mitigated anyway.. Never had a single issue with ethanol ever on anything!
What 4 stroke in the world can't benefit from leaded fuel? Even when not needed, unleaded specific hardened valve seats wont say no to lead.
U4.4 may run a little lean.
As others have said, the fuels w/ higher Ox content will probably need a remap to get the real-performance gains.
T4 and VPR will run waaaay better than pump fuels (91-93). They've got chemistry that you ain't going to find in 91/93 pump fuel.
At Down's Energy, in Corona, they have some pump 100/110 that's a really good deal.
Note: The KTM Demo Rig (The Big Semi) puts T4 in the bikes.
As for "mixing": 1 gallon of pump 91/93 (Chevron or Shell NON Ethanol) and 1 gallon of U4.4 makes a very interesting fuel...that makes for great throttle response for a VERY good price.
Try it..youl notice the horsepower and throttle response increase immediately..
I'm throwing around the idea of trying T2 at some point. T4 seems like a great choice for the 4 strokers on a budget.
Leaded is just the cheapest way to raise octane.
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