Welcome! Please use the navigational links to explore our website.
PartsASAP LogoCompany Logo (800) 853-2651

Shop Now

   Allis Chalmers Case Farmall IH Ford 8N,9N,2N Ford
   Ferguson John Deere Massey Ferguson Minn. Moline Oliver

Attention Forum Users: On the 28th of December 2023 at 9:00am Central Time, we will be taking the forums down for maintenance while we prepare the new forums for your use. Please click here for more information.

Tractor Pulling Discussion Forum

Racing Fuel

Welcome Guest, Log in or Register
Author 
Phillip

01-27-2004 11:34:39




Report to Moderator

Which is the best to use with a JD G? I want to run VP or Cam 2. whats yall opinions! thanks in advance!




[Log in to Reply]   [No Email]
buickanddeere

01-28-2004 06:55:43




Report to Moderator
 Re: Racing Fuel in reply to Phillip, 01-27-2004 11:34:39  
Aircraft 100LL ( 100 octane low lead) which is 100 ocatne lean and 130 octane rich. Cheap and available everywhere. Blended for low speed long stroke hot running radial aircraft engines. Similar application in a convection cooled "G". Is your "G" stock with a straight pipe and a turbo mega blaster Blitzburg ignition system? Won't make any power on 100LL and likely less HP than with 87 pump gas as the other guys have already said. A natural aspirated engien with extreme compression ratios make only a little extra power over mid range. If it knocks on 100LL and it's extreme compression, not timing, too hot, too lean, cam timing too short or incadescent combustion chamber debrie. Then compression is getting past the point of making power and loosing power due to flame travel problems around piston domes etc. A forced induction engine is another issue. More octane pretty much = more boost= more power.

[Log in to Reply]  [No Email]
Wild Horses

01-27-2004 12:41:17




Report to Moderator
 Re: Racing Fuel in reply to Phillip, 01-27-2004 11:34:39  
What has it got for a motor? Stock, don't use either. It'll just blow it out the exhaust pipe. Cam2 is very dry. Run it straight and you'll find water in the oil, knw from experience. If the motor is built to use it, mix it with a little mystery oil or other lubricator. We run pump gas + octane booster in our classics or high-octane pump gas like 96 or 104.



[Log in to Reply]  [No Email]
Chads

01-27-2004 16:58:32




Report to Moderator
 Re: Re: Racing Fuel in reply to Wild Horses, 01-27-2004 12:41:17  
It sounds like the fuel you use is too hot for the compression. In my experience,, on low rpm engines,, a good, slow burning fuel and a clean burning fuel will make more power and control detonation than the 5-8 dollar a gallon fuels.. What I am talking about is Ethanol. I mix it 50/50 with 94 ultra, and makes around 105 octane. High rpm engine need a fast burning fuel,, to fully combust at high rpm. Low rpm,, there is more time to burn in the cyl,, thus you can use a slower burning type fuel.. On the dyno,, I have seen high octane fuels hinder HP, instead of giving it.. All octane does, is control detonation, and preignition.. Not nessisarily give it power. all that extra octane, creates a contaminate in engines that do not need all that octane to control detonation,, it is called too much of a good thing,, Most race fuels,, are designed for high rpm. (over4500) if you can find a fuel that is slower burning,,, and have enough octane to control detonation,, you will make power, and then the fuel will be more efficient. On a 240psi and above compression, engine,, the mixture I told you about will make 7+ more hp,, just by dumping it in,, tune it on a dyno,, and the results will be higher.. No BS,,, Just my opinion,, Chad

[Log in to Reply]  [No Email]
farmall

01-28-2004 19:52:02




Report to Moderator
 Re: Re: Re: Racing Fuel in reply to Chads, 01-27-2004 16:58:32  
Now I see why you pull USAP. They must not check you fuel! Spacific gravity would be way over .750
Have you ever tested it? Pure ethanol should be around .900 to 1.0 spacific gravity. So if you are mixing 50/50 94 octane & ethanol your mix should weight 1 gal ethanol = aprox .900 + 94 octane aprox .74 sg =1.64 /2=.84 sg. This is an aprox. weight of your mix. Wont pass a fuel test.
Just my 3 cents worth PS I wish I could use this mix.....could save lots of money!

[Log in to Reply]  [No Email]
ChadS

01-29-2004 10:00:55




Report to Moderator
 Re: Re: Re: Re: Racing Fuel in reply to farmall, 01-28-2004 19:52:02  
Another point in my mind,, that if I am pulling USAP for that reason only,, I sure would not be running this fuel, I would run 100% Methanol. But that is not the case in my eyes. Yes sir, I have had this fuel tested, Even someone down south here had it tested, and now run it in a div 4 super M, NATPA. I am an honest puller, and go by the books,, I went through all of this in my local club. When I first started, I ran Methanol,, and as soon as I started winning, they threw it out,, OK fine and dandy,, so, we searched, and studied for a fuel, that would make good power, and still keep the cost down,, and pass a test. It took me 2 years to perfect this fuel, at first we did use pure ethanol,, and like you said, it did not pass,, so we went to the next best thing, A diluted version of ethanol,, it tests 750 right off the bat, with out adding 94. and the more gasoline I added, the lower, or the thicker the mixture became. It is a very dence fuel, loves air, and compression. If Farm Buereau Coop has a web site,, and give the specs on their products like the do when you ask for info on the product you buy,, (brochure) you can see for your self, Another point to mention,, is that people running C-12, are not legal either,, it is 780,, that is in the profile of the fuel,, VP has only 2 fuels in their inventory, according to the specs,, that will pass an NATPA fuel test. And it is none of the "C" brands. I am not disputing the fact that pure ethanol will not pass,, neither will Methanol, and about 100 other different fuels that most pullers run, I would put my mix against any test that you or any one would like to subject it to. And I am not trying to start a who or which is better,, I did my homework,, I would send a sample to anyone who will test it. and the results will be the same, The pullers who pull USAP,, pull in this organization because they love the USAP, the hospitality that those KY boys show any one, is beyond anything you find at any NATPA pull. The USAP is not a club of outlaws, and cheaters, they like a good pull, with good rules, and a friendly environment. When someone wins,, they get congratulated, not riticuled or called illegal, or cheating. Why do I pull USAP? Because John and his crew has got it going on!! And need support from pullers all over the country to let it grow. Natpa was here first, but USAP is growing,, Just my 2 cents worth too, Chad

[Log in to Reply]  [No Email]
farmall

01-29-2004 15:42:08




Report to Moderator
 Re: Re: Re: Re: Re: Racing Fuel in reply to ChadS, 01-29-2004 10:00:55  
Have you read USAP's rules? Gas, Diesel or LP fuels only NO ALCOHOL or nitrous. Isn't Ethanol considered an alcohol? Im not trying to be smart, just wondering.



[Log in to Reply]  [No Email]
ChadS

01-29-2004 16:20:58




Report to Moderator
 Re: Re: Re: Re: Re: Re: Racing Fuel in reply to farmall, 01-29-2004 15:42:08  
Says no Methanol, Na, I am not stirred up LOL,, I made the mistake of not being clear of what I am using for fuel. I had spoke with John a few years back, about what we can run as far as an alcohol is concerned,, Methanol is out,, ethanol is in everyday pump gas, so it is allowed. unless the rules have changed, sorry if I seemed a bit hostile,, I know that you know your stuff, and I love a good discussion,, Chad

[Log in to Reply]  [No Email]
ChadS

01-29-2004 08:20:50




Report to Moderator
 Re: Re: Re: Re: Racing Fuel in reply to farmall, 01-28-2004 19:52:02  
Correct,,, to a point. pure ethanol is around 900 spg,, I am running what is called gasahol, it is a blended fuel,, before I purchase it, I guess I should have been more specific. I went through the fuel test a while back,, NO BS here it was right at the limit. If you like,, I would send you the test results, on this particular fuel, with out the 94 added,, you might run it, if you can get it.. To be honest,, it is an kinda of an oil texture to it, if you let it evaporate,, it leaves an oily residue in stead of drying up completly. it is a slow burning fuel,, not a thin fast burning fuel,, Hope this helps Chad

[Log in to Reply]  [No Email]
farmall

01-29-2004 14:22:53




Report to Moderator
 Re: Re: Re: Re: Re: Racing Fuel in reply to ChadS, 01-29-2004 08:20:50  
Didn't mean to stir you up. I test all the fuels that I have tried. I knew straight ethanol was around .9 sg What you just said makes more sence.
By the way thanks for the info.



[Log in to Reply]  [No Email]
David

01-27-2004 20:50:10




Report to Moderator
 Re: Re: Re: Racing Fuel in reply to Chads, 01-27-2004 16:58:32  
One problem with ethanol is that it won't pass a fuel check, especially at a 50/50 mix. We've done fuel checks on regular pump gas (89 octane) with 10% ethanol and it wouldn't pass a specific gravity test or a dialectric test.

Some of the fuel companies (such as VP) now make a higher octane fuel designed for lower compression engines (not full race like with 14:1 and up compression) that work well.

[Log in to Reply]  [No Email]
DaveWis

01-27-2004 23:12:00




Report to Moderator
 Re: Re: Re: Re: Racing Fuel in reply to David, 01-27-2004 20:50:10  
I don't have tractor pulling experience, but do have high performance and racing experience. As the others have stated, higher octanes do not give you any extra hp, they are used to control preignition. They do allow you to do things that will give you more hp, ie. raising compression, advancing timing, chamber work, to name a few. Also as stated above too much will actually cause a loss of hp, I too have seen that on a dyno. Most racing fuel companies supply 3-5 grades for different applications. Hope this helps.

[Log in to Reply]  [No Email]
[Options]  [Printer Friendly]  [Posting Help]  [Return to Forum]   [Log in to Reply]

Hop to:


TRACTOR PARTS TRACTOR MANUALS
We sell tractor parts!  We have the parts you need to repair your tractor - the right parts. Our low prices and years of research make us your best choice when you need parts. Shop Online Today. [ About Us ]

Home  |  Forums


Copyright © 1997-2023 Yesterday's Tractor Co.

All Rights Reserved. Reproduction of any part of this website, including design and content, without written permission is strictly prohibited. Trade Marks and Trade Names contained and used in this Website are those of others, and are used in this Website in a descriptive sense to refer to the products of others. Use of this Web site constitutes acceptance of our User Agreement and Privacy Policy

TRADEMARK DISCLAIMER: Tradenames and Trademarks referred to within Yesterday's Tractor Co. products and within the Yesterday's Tractor Co. websites are the property of their respective trademark holders. None of these trademark holders are affiliated with Yesterday's Tractor Co., our products, or our website nor are we sponsored by them. John Deere and its logos are the registered trademarks of the John Deere Corporation. Agco, Agco Allis, White, Massey Ferguson and their logos are the registered trademarks of AGCO Corporation. Case, Case-IH, Farmall, International Harvester, New Holland and their logos are registered trademarks of CNH Global N.V.

Yesterday's Tractors - Antique Tractor Headquarters

Website Accessibility Policy