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Discussion Starter #1
so i decided to get in contactt with the VP fuel folks to find out what the deal is with getting some MR8 for dyno tests here in Maine. The regional rep emailed me back and has been great getting me infomation.

Oxygenated MR8 is NOT available for sale in Maine due to the ban on MTBE, which is in MR8.

Here is what he wrote

Scott, Yes, MTBE is the oxygenater in MR8. VP does use other components to oxygenate their fuels, so their are some other options.

For reference, the MR8 is 107 motor octane

Non-oxygenated C12 is 108 motor octane and a very good performer and would work well in your application.

Somewhat oxygenated Motorsport 109E is oxygenated, but not modeled to the AMA rules like the MR fuels. I'm trying to get a reply regarding its compliance with the AMA rules, if that is important to you. You may see some performance improvement over C12 with this and it should have enough octane for your application at 101.

U4.1 is oxygenated beyond the AMA rules and is a super performer, but may not have a high enough octane rating at 95 if your engine is prone to detonation. This stuff outperforms anything else that I can recommend.


Bob Taylor
Eastern VP Sales, LLC
280 Beech Rd.
Eliot, ME 03903

207-439-3561

and next . . .

C12, MS109E, and U4.1 do not contain MTBE. I'm just trying to keep my racers happy. Losing an important chunk of our products due to state legislation has really upset things for the racers who weren't expecting this. We are preparing to lobby for an "off road" exemption for MTBE. Maybe we'll get it back.


So I think i'm gonna try some MS109E. I can order it from Woody's up the road here.
I was really surprised that I even heard from this guy. I sent an email to the regional rep from the VP web site, and never expected a response.

evil
 

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I've talked to their tech for the east coast, maybe the same guy, on the phone. Very helpful and accessible. I've been using VP Red, but I think I'm going to try C12. I don't know if the local speed shop will order the MS109E.
What were you using before?


FR
 

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Discussion Starter #3
some lrrs guy at the last event had to get rid of the last of his gas, sold me a can of MR8 for $20.00. It was quite different from any pump gas I'd been using. Whhhhompf kinda power.
 

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Evil,

If you're gonna try this stuff any chance you plan on dyno'ing C12 at the same time. I'd really be interested in the difference that makes vs. the difference in price of C12 and MS109E.

I do know the one time I drove back from NHIS when the petcock wasn't turned off and C12 leaked inside my van my eyes were burning and I had a headache. Though that may have had more to do with the broken ribs and collar bone.

Craig
 

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Discussion Starter #5
problem is 641, that i'd be on a dyno with a single cylinder 574 cc at 10.5:1 comp. compared to your beast. I'd think that would make too big a difference to make a worthwhile comparison for you.
 

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C12 smells like water compared to some of those other fuels that really really stink.

I wouldn't mind trying some of the 109E...sounds kind of like the best of both worlds, oxygenated but enough octane. C12 is very forgiving but I think the octane hurts power a bit. Problem is these old engines with their vintage valve angles and big combustion chambers need the high dome pistons for compression and that leads to combustion problems and detonation.

I did run my engine once on a C12 pump gas mix...didn't seem to like it...it ran, but once it got nice a hot just didn't perform as well.

Wish I had a dyno.
JohnnyB
 

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Discussion Starter #7
and this just in . . . about what will be for sale at the track.

http://www.lrrsracing.com/lrrs_fuel spec.htm

After the consideration of several options, Bob Bahre of NHIS agreed to forgo the sale of track fuel in favor of program that was more beneficial to the LRRS riders. VP racing fuels will be the supplier of all racing fuel for LRRS, and will fully back the program with both a testing program to ensure enforceability and a contingency program to support the riders. All fuel should be purchased from the VP fuel truck at NHIS.

There will be 2 fuels available. VP C12 will be sold at the track for $8/gallon. This is a long-standing benchmark racing fuel with a 108 octane rating that is capable of safely delivering solid performance in any motor without risk of detonation. It is widely available and many tuners have experience with it. For those riders running stock engines, VP MS93 will be sold at the track for $3.25/gallon. This is an affordable non-oxygenated unleaded fuel with a R+M/2 octane rating of 95, and is the spec fuel for a number of racing series around the country. The mapping for this fuel is identical to pump gas, and will allow riders formerly using pump gas to collect contingency money at LRRS events. The lack of oxygen in both of these fuels makes enforcement of the rule possible, as additives and foreign fuels are easily detected.



Edited by - imslow on Mar 21 2007 11:44:56 AM
 

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anybody know whether or not cam2 will still be available across the street? is cam2 oxygenated? can't uscra guys could run anything we want including nitromethane? works for john force.
parks
 

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Discussion Starter #11
yeah so i forgot what was going to be in the pumps from the last go-around on this subject.
 

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The way I read the complete artical that was on the Roadracingworld.com site is that you'll only be able to buy VP gas in the 5 gallon (or larger) drum when the truck is at the track. And in all likelyhood it never will be for our races. And what I also understand it the Sunoco at the track will be a new spec fuel that NASCAR wants. And it won't be a good thing for bikes that need or want high octane. And Parks - if the Gulf station loses the LRRS racers that have always bought the CAM2 stuff do you want to rely on the go-cart racers to buy enough to keep that stuff fresh? Or even will they keep it on hand if there biggest customer has just been forced to buy something else.
And $8 a gallon seems a little steep to me... NHIS getting a kick back???
 

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Last year when I bought C12 at the Honda shop down the street from NHIS it was $45 for a five gallon can. The stock car racers usually pump it out of a drum for around $6/gal.
Heck one five gallon jug will last our bikes at least two races.
JohnnyB
 
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