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27442
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7/22/2007
Location
St Helens, OR
US
Edited Date/Time
4/30/2019 3:23am
I've been having good luck on my RM running the standard Sunoco 110 running 50/50 with non ethenol clean fuel 91 , but reading some older threads on race fuel , some guys had mentioned a leaded Oxygenated 2 stroke race fuel runs even better , and 2 strokes can take advantage of this. I believe it also costs more , but wanted some opinions on it. There is a distributor out by where I'm working today and I need to get some more race fuel. They sell Sunoco out of the 5 gallon cans quite a bit cheaper then what I can get them at the bike shop. Not sure if they sell VP? I'll have to ask.
I'm getting 5 gallons of vp110 for $55 +tax
https://vpracingfuels.com/product/t2/
Jeff this is VPs page with the oxygenated Leaded fuels, I believe the MRX02 and MR2 are the ones that are supposed to make a 2 Stroke pretty happy if it hasn't been modified.
If you modify and raise compression I would run at a minimum VP110 but preferably C12!
When I was in Reno I could get C12 for 65ish a 5 gallon pale but, here in Vegas I just paid 91!!!!!
The Shop
Edit, I use this is 4 strokes, not 2 strokes.
People buying high dollar fuel for virtually stock bikes. Why? If its not detonating or pinging, there is no need.
http://vpracingfuelswest.com/?page_id=17
The one near me in Houston is $55 for 5gal, the local shops want $65-$75
It doesn't hurt to make a phone call.
Is that what you run in your snowmobile?
If you're riding a bike that is pinging and having detonation issues it's usually too late. That's why you run good fuel.
Pit Row
Most can simply get more performance by twisting the right grip further with plain old 91. Ever seen how a 65 can blow past a 450?
(Runs crisp and clean- no spooge)
For the Sunoco 110 leaded "purple"
I buy it by the gallon as needed from a local race car/ fab shop about 5 miles away
- about 8.50 gal + tax
I buy extra as a treat for my classic w/ 11-1's and solid lifters
-- it sounds and runs so much better then 92 plus
A good all around compromise would be U4.4, not as much oxygen as MRXO2 but it's much more affordable.
MR12 is far too low octane for a "tuned" two stroke. It will detonate itself to death in 5 laps if it has any compression at all.
C12 at 40:1
91 pump at 60:1
Post a reply to: Oxygenated 2 stroke race fuel....better?