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Old 06-05-2011, 01:24 AM   #1
Renzo
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Vp racing fuel

I was at MSRC today and on the way out i saw VP racing fuel for sale so I filled up my '10 R6. I haven't tried it yet, but will it make a difference? Any negative effects besides $7.00 a gallon?
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Old 06-05-2011, 07:58 AM   #2
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no negatives, sadly though, no real positives if the motor doesnt need the extra octane
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Old 06-05-2011, 08:29 AM   #3
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your bike will be faster because your wallet is lighter. . .doubt that minimal weight will make a difference though.
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Old 06-05-2011, 08:30 AM   #4
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+1
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Old 06-05-2011, 08:39 AM   #5
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I'm not sure but I think it doesn't contain Ethanol which would be a big positive to me.
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Old 06-05-2011, 09:02 AM   #6
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which VP fuel? If it was more octane, it will hurt your power. If it was MR9 or MR12, it will gain hp if tuned due to being highly oxygenated, but @ $7/gal, I can asure you it wasnt one of those. They run about $20/gal
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Old 06-05-2011, 09:04 AM   #7
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Quote:
Originally Posted by gixxre750 View Post
which VP fuel? If it was more octane, it will hurt your power. If it was MR9 or MR12, it will gain hp if tuned due to being highly oxygenated, but @ $7/gal, I can asure you it wasnt one of those. They run about $20/gal
+1 ^^^ this guy knows all about it!
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Old 06-05-2011, 09:05 AM   #8
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Quote:
Originally Posted by gixxre750 View Post
which VP fuel? If it was more octane, it will hurt your power. If it was MR9 or MR12, it will gain hp if tuned due to being highly oxygenated, but @ $7/gal, I can asure you it wasnt one of those. They run about $20/gal
Agree. The oxygenated stuff will add power, but it's 20.00+
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Old 06-05-2011, 10:43 AM   #9
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Quote:
Originally Posted by bluewave18 View Post
Agree. The oxygenated stuff will add power, but it's 20.00+
won't it also corrode your tank and fuel system if left in there?
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Old 06-05-2011, 10:46 AM   #10
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Yes, oxygenated fuel will corrode you tank and fuel system over time.
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Old 06-05-2011, 10:55 AM   #11
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Without even being tuned for it, I got 4 mph more in the 1/4 on MR9. It will mess up the fuel pump if left in the tank as well as gum up injectors. For 20 a gallon you dont add more than you will use anyway.

Last edited by bluewave18; 06-05-2011 at 10:57 AM.
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Old 06-05-2011, 11:04 AM   #12
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it was 109 octane unleaded. if it makes a difference i have a full exhaust, PC5 and Auto tune
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Old 06-05-2011, 11:12 AM   #13
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Quote:
Originally Posted by gixxre750 View Post
which VP fuel? If it was more octane, it will hurt your power. If it was MR9 or MR12, it will gain hp if tuned due to being highly oxygenated, but @ $7/gal, I can asure you it wasnt one of those. They run about $20/gal
I'm not sure if they even had that. They had three types 109, 110, and leaded. What is the best fuel for the track and do they sell it Locally? I never seem to go thru more than a tank at the track so cost wouldnt be too bad, not like a car would.
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Old 06-05-2011, 12:29 PM   #14
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If costs dont matter here are 2 to look at. I loved the MR9 but never tried U4. If you dont need the higher octane, dont use it. There has been a guy in Pland that sold the VP. He meets me in my area to drop it off. There are several shops around that will order 5 gallon jugs. When you're done racing just add pump gas to the tank and run some through. I only added 1-1.5 gallons to the tank at a time for track nights. I ran most of the night with the fuel light on.
U4.2™
Formulated as a direct pour-in replacement for pump gas, with little to no jetting changes required, +2 main jets and +2 pilot jets at the most. Designed for stock and modified 2-stroke and 4-stroke applications, U4.2 makes up to 6% more power than pump gas. Spec fuel for All Harley Drag Racing Association (AHDRA). Used with success by many riders in AMA Dragbike.

MR9™
Designed for 4-stroke applications that can tolerate lower octane values. Makes up to 8% more power than pump gas and up to 2% more power than MRX01.

TYPICAL VALUES
• Color: Clear
• Motor Octane: 87
• Specific Gravity: .718 at 60°

Tech Tip:

When using MR9, to keep your fuel cool and prevent vapor lock on hot days, e.g. 90 ° or higher, we recommend:
Always go out with a full tank – the more fuel you have the cooler the fuel will stay
Insulate the bottom of your fuel tank:
line the underside of the tank with heat reflective tape and/or
install a CV4 Fuel Kool Gas Tank Barrier
It will also help to keep your fuel container wrapped in a RACEPRO “Cool Fuel” Ice Jacket prior to dispensing in your fuel tank.

Last edited by bluewave18; 06-05-2011 at 12:33 PM.
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Old 06-16-2011, 03:55 PM   #15
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Quote:
Originally Posted by bluewave18 View Post
If costs dont matter here are 2 to look at. I loved the MR9 but never tried U4. If you dont need the higher octane, dont use it. There has been a guy in Pland that sold the VP. He meets me in my area to drop it off. There are several shops around that will order 5 gallon jugs. When you're done racing just add pump gas to the tank and run some through. I only added 1-1.5 gallons to the tank at a time for track nights. I ran most of the night with the fuel light on.
U4.2™
Formulated as a direct pour-in replacement for pump gas, with little to no jetting changes required, +2 main jets and +2 pilot jets at the most. Designed for stock and modified 2-stroke and 4-stroke applications, U4.2 makes up to 6% more power than pump gas. Spec fuel for All Harley Drag Racing Association (AHDRA). Used with success by many riders in AMA Dragbike.

MR9™
Designed for 4-stroke applications that can tolerate lower octane values. Makes up to 8% more power than pump gas and up to 2% more power than MRX01.

TYPICAL VALUES
• Color: Clear
• Motor Octane: 87
• Specific Gravity: .718 at 60°

Tech Tip:

When using MR9, to keep your fuel cool and prevent vapor lock on hot days, e.g. 90 ° or higher, we recommend:
Always go out with a full tank – the more fuel you have the cooler the fuel will stay
Insulate the bottom of your fuel tank:
line the underside of the tank with heat reflective tape and/or
install a CV4 Fuel Kool Gas Tank Barrier
It will also help to keep your fuel container wrapped in a RACEPRO “Cool Fuel” Ice Jacket prior to dispensing in your fuel tank.

VP u4.4 is a decent fuel. Thats what i run.
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