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Old 03-15-2006, 10:43 PM   #1
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Default VP Racing Fuels

In preps for wcbf I got a racing fuel jug like the one i borrowed last year and was wondering what fuels some others use.
The fuel I used last summer was VP Motorsport 103 unleaded.
VP'* techbulletin reads it is good to 25lbs boost or 11:1 compression.
Right click, save as. http://www.vpracingfuels.com/spec/Te...etin-ms103.doc

Would 109 octane be better yet and why? Cooling maybe?
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Old 03-15-2006, 10:57 PM   #2
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If you are seeing KR It will reduce it... If you are not seeing KR you could drop a pulley or two and/or add more timing.
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Old 03-15-2006, 11:25 PM   #3
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jet fuel from your local airport!!!
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Old 03-16-2006, 12:08 AM   #4
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Quote:
jet fuel from your local airport!!!
Jet fuel is actually diesel fuel with a higher level of Cetane.

My preffered unleaded racing fuel is Rockett 100; their blend works excellent on Supercharged engines and 14:1 compression engines. Is far superior than VP to the point NHRA banned many of their blends some years ago. If you use Rockett Fuel, you will never want to use any other brand. Check out their website:
http://www.rockettbrand.com/index.html
Their distributor in Albany, Oregon is as follows:
JAMES BROOKS
NEWMAN'* UNION 76 SERVICE
1208 PACIFIC BLVD SE
ALBANY, 97321
(541) 926.8555
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Old 03-16-2006, 12:31 AM   #5
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Hey Bill, go and order up a barrel or two for the group. We need to run it for a bit in order for our computers to learn.
I'm in for at least 10 or 15 gallons.
I will be out of 94 octane by the time I leave Seattle, then it'* 91 octane until i run out of toluene.
Gonna need the octane when running smaller pulleys in 95*F temps.

I used the 115 octane last year at Woodburn.
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Old 03-16-2006, 12:31 AM   #6
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I run VP 109 (MS109)
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Old 03-16-2006, 01:34 AM   #7
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I have used aviation fuel from the local airport. 102 octane works fine.
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Old 03-16-2006, 09:26 AM   #8
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I'd heard rumors the high octane at the 76 station was leaded. May be wrong. I'll go by and check on this stuff and maybe run a half tank between now and then.

Guys, if you go to the Mongolian Grill from the KOA, then pass it and keep going OVER the overpass we went UNDER (at a high rate of speed while Pmom shot vid) 2 years ago, the 76 is only a half mile farther on at the most.
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Old 03-16-2006, 10:22 AM   #9
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Will, the Rockett Fuel 100 is real unleaded fuel. When it applies to race fuel, do not let octane numbers dictate the fuel you use; take a close look at the spec sheets for the fuels and you will see what I am saying. To give you a clue, look at the specific gravity of the different fuels. NHRA tests all the fuels at Divisional and National events for specific gravity; they have a fuel specific gravity for some classes.
http://www.nhra.com/tech_specs/fuels.html
For the professional classes, they only allow specific VP fuels due to the fact that VP pays lots of $$$ to NHRA to be NHRA'* Fuel. They did this to keep the competion out.
The best additive for your fuel is Nitropropane; it bumps the oxygen content in the fuel.. NHRA does not allow it because I have seen cars gain 2/10th'* of a second and at least 2 to 4 MPH down the track.
Two of the best mixes are sold by Klotz:
http://www.klotzlube.com/storeProdDetails.asp?pi=48
http://www.klotzlube.com/storeProdDetails.asp?pi=57
I try to stay away from aviation gas as much as I can; AVGAS has aromatics in it'* composition that are added to help the AVGAS to burn at high altitude that may not work at sea level and can actually slow down your car.
Also, when you purchase a gas can, never use a clear one and if you do, keep it always in the shade and cool place. The sun and heat will deteriorate the fuel when stored in a clear container. I always use red or blue only.
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Old 03-16-2006, 11:42 AM   #10
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Joe, I guess it'* a good thing I have a Specific Gravity gauge, eh?

I know that 76 advertises their 110 on a sign out front (verified on the way by this morning). Greyhare tells me they won't pump directly to the car, only to a can, but then you can dump the can right in. Their 110 may be leaded, but I'll verify the 100 tonight on the way home from work.

This station is on the way from Eric'* house (mod day location before the track) and Woodburn. It'* pretty conveniently located between the KOA and my place, too.
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