Race Fuel

offcamber09 · Post by **offcamber09** » Mon Apr 09, 2007 9:46 am

Race fuel at NHIS is now unleaded and 98 octane (Nascar mandate). This is a problem with our SCCA car. I checked with the Glen and they have 100 octane unleaded and 112 leaded.

StephanAlfa · Post by **StephanAlfa** » Mon Apr 09, 2007 11:05 am

Haffner in Hudson, NH on Lowell Rd (for some it's kinda on the way to NHIS off Rte 3) has 110 octane. Can't remember if leaded or unleaded but I do remember it's less expensive than at NHIS.

gread · Post by **gread** » Mon Apr 09, 2007 11:21 am

110 will be leaded. No unleaded fuels available with that octane rating. VP109 is the closest and you won't find that in anything other than a 55 ga. drum.

jlwhorf · Post by **jlwhorf** » Mon Apr 09, 2007 12:14 pm

Scott,

The Haffners on Rt125 Haverhill/PLaistow line (a mile north of exit 51B on 495) has 110 at the pump. The fuel is Sunoco purple sold under the name of CAM2.

Jonathan
900 Monte Carlo PA

offcamber09 · Post by **offcamber09** » Mon Apr 09, 2007 2:52 pm

jlwhorf wrote:Scott,

The Haffners on Rt125 Haverhill/PLaistow line (a mile north of exit 51B on 495) has 110 at the pump. The fuel is Sunoco purple sold under the name of CAM2.

Jonathan
900 Monte Carlo PA

Thanks Johnathan, I know the place. I'm just worried about the first SCCA race at NHIS in 2 weeks. The Gulf station down the street on 106 still has kerosene in his tank.

agrabau · Post by **agrabau** » Tue Apr 10, 2007 10:02 pm

We use VP109 for our cars. We buy it from VP Maine and we have special ordered it from Reid's Machine in Whitman MA.

We like unleaded for environmental reasons and it can still do fine at 28+psi of boost.

APD · Post by **APD** » Wed Apr 11, 2007 3:14 pm

Mr. Mike's Truck Stop is just a short detour off 93N for those coming from MA and points south. They also carry Sunoco 110 leaded aka CAM2.

Mr. Mike's Truck Stop
728 Route 3A
Bow, NH 03304
(603) 223-6885

fact5racer · Post by **fact5racer** » Wed Apr 11, 2007 6:36 pm

There's a place in Elliot Maine where you can get drums of VP. I use the VP114 plus in my Champ car.

jadams · Post by **jadams** » Wed Apr 11, 2007 8:53 pm

What is the current price for unleaded race fuel?

fact5racer · Post by **fact5racer** » Wed Apr 11, 2007 8:57 pm

VP114 plus is only about $11.00 per gallon.

brucesallen · Post by **brucesallen** » Wed Apr 11, 2007 9:23 pm

VP114 is leaded.
VP MS100 unleaded is $7 with alcohol. Greg uses it. I do too. They also have MS103

jadams · Post by **jadams** » Wed Apr 11, 2007 11:23 pm

Ouch....that is kinda pricy. If you want to mix your own, you can get 100 octane unleaded for about $5.75 per gallon. Even less if you buy in bulk. Local Sherwin Williams store has the octane booster that you need. All you have to do create a mixture of 33.3333% Toluene and 66.6667% 93 Octane unleaded fuel and you have 100 octane for pretty cheap. I have done it and it works great.

enjoythemusic · Post by **enjoythemusic** » Thu Apr 12, 2007 3:55 am

Paid $4.21 a gallon for 100LL at my local airport. Add to that, airport/aviation gas and how it is stored is held to very strict guidelines. Would HATE to be the first few guys to pump the crap from a track in-ground tank after the winter and pay $7/gallon for the <cough> privilege <cough>.

StephanAlfa · Post by **StephanAlfa** » Thu Apr 12, 2007 7:27 am

You mean I can go to - for example - the local airport here in Nashua and get aviation fuel just like that?
Do you not need a pilot's licence or proof that you own a plane or belong to a air club?

jlwhorf · Post by **jlwhorf** » Thu Apr 12, 2007 8:46 am

Below is something I pulled of a website. I tried the link this morning and it would not load, so I pasted in the contents if the link doesn't work. (I don't know what the format will look like)

Concerning avgas, I have been told that the octane ratings are calculated differently. It is calculated using the Research Octane method, which higher than the (R+M)/2 method used for automotive fuels.

Jonathan
900 Monte Carlo PA

http://www.team.net/sol/tech/octane_b.html

Octane Boosters
I pulled this off the Vette list last year. It's not as complete as I thought, but there's some good info here. First part is Sunoco Fuel info, the second is about various octane boosters and how to mix your own brew.
Mike G.

First, some data about the Sunoco CAM2 fuels from their literature:

SUNCO Fuel Color Research Octane Motor Octane (R+M)/2 Specific Gravity Reid Vapor Pressure Distallation Temp, deg F
Initial 10% 50% Final
Standard Purple 115 107 111 0.725 8# 90 160 220 360
GT Unleaded natural 105 95 100 0.760 8# 90 150 210 230
Supreme Blue 116 109 112 0.715 8# 90 155 215 260
Maximal Red 118 115 117 0.700 6# 100 150 220 240

And from Rich Lassitter's article in the GS Xtra ... how to mix your own brew:

Formula (R+M)/2 Cost Mixtures with 92 Octane Premimum Note
10% 20% 30%
Toulene 114 $2.50/gal 94.2 Octane 96.4 Octane 98.6 Octane (1)
Xylene 117 $2.75/gal 94.5 Octane 97.0 Octane 99.5 Octane (2)
Methyl-tertiary-butyl-ether (MTBE) 118 $3.50/gal 94.6 Octane 97.2 Octane 99.8 Octane (3)
Methanol or Ethanol 101 $0.60 - $1.75/gal 94.3/94.7 Octane Not Recommended Not Recommended (4)
Isopropyl Alcohol and Tertiary Butyl Alcohol 101 $0.60 - $1.50/gal 94.5 Octane Not Recommended Not Recommended (5)

Notes:
Toulene: Common ingredient in Octane Boosters in a can. 12-16 ounces will only raise octane 2-3 *points*, i.e. from 92 to 92.3. Often costs $3-5 for 12-16 ounces, when it can be purchased for less than $3/gal at chemical supply houses or paint stores.
Xylene: Similar to Toulene. 12-16 ounces will only raise octane 2-3 *points*, i.e. from 92 to 92.3. Usually mixed with Toulene and advertised as *race formula*.
Methyl-tertiary-butyl-ether (MTBE): Oxygenate. Very common in octane booster products. Has lower BTU content than toulene or xylene, but oxygenate effect makes the gasoline burn better and produce more energy.
Methanol or Ethanol: Methanol is wood alcohol. Ethanol is grain alcohol and found in Gasohol in 10% ratios. Both alcohols are mildly corrosive and will eat gas tank linings, rubber and aluminum if used in excessive ratios. Main ingredient in "Gas Dryers", combine with water.
Isopropyl Alcohol and Tertiary Butyl Alcohol: Similar to Methanol/Ethanol. Isopropyl Alcohol is simply rubbing alcohol.
Making your own
How to make your own octane booster (this is the basic formula of one of the popular octane booster products). To make eight 16 ounce bottles (128 oz = 1 gal):
100 oz of toulene for octane boost
25 oz of mineral spirits (cleaning agent)
3 oz of transmission fluid (lubricating agent)
This product is advertised as "octane booster with cleaning agent *and* lubricating agent!". Diesel fuel or kerosene can be substituted for mineral spirits and light turbine oil can be substituted for transmission fluid. Color can be added with petroleum dyes.
-- Ken Mosher
-- Buick Grand National: A *BOOST* of Buick Performance
[Thanks a bazillion for that post. I'll only add one comment regarding using methanol. In a word, don't. It attacks zinc and magnesium very rapidly. Guess what is in carburators and other fuel system parts. I had this graphicly demonstrated to me one time. I was involved in racing chain saws (Oh no, not another one....) In the particular class, my saw ran on 100% methanol. Saws are typically made of a magnesium alloy. I knew I had to clear out the system after each run but one afternoon I forgot. By late evening when I remembered it, the gas tank had already corroded through. I left it to see what would happen and by morning practically the entire saw was a pile of white dust with steel parts interspersed. That included my one-of-a-kind highly ported cylinder I'd spent hours on. *sob*. I saw similar results running methanol in motorcycle engines, though never as bad. JGD]
Posted by: "KEN MOSHER" <EMORY!IMD.STERLING.COM!KEN_MOSHER

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