Farmall & IHC Tractors Discussion Board |
Re: 460 question part 2
[ Expand ] [ View Follow Ups ] [ Post Followup ] [ Return to Forum ]
Posted by ChadS on November 04, 2004 at 06:48:04 from (66.228.96.139):
In Reply to: Re: 460 question part 2 posted by the tractor vet on November 03, 2004 at 21:43:59:
C-12 is a pretty good racing fuel. It does have a high octane rating, but was designed for high rpm use. (above 4000rpm) I am using a different mixture of fuel designed for low rpm, high compression engines. It makes a huge difference in how the engine makes power in the low rpms. I have been concerned with preigntion, and detonation in this engine. Fuel is a mix of 94 octane, with ethanol added to aide in the preigntion, and detonation. I get the fuel from farm beaureu COOP. And the fuel makes power. Hard to find a good pulling or farm fuel that will do what this fuel can do. Been running it for years, in H engines making 290+psi cyl pressure. Instead of using more octane, the ethanol cushions the erratic conditions that create preigntion and detonation. It burns cleaner in the cyl. So the fuel does more,, with less octane. Octane,, can actually shoot you in the foot in these cases. Too much,, will create carbon deposits, which float around in the cyl, stick to the electrode of the plugs, they can foul the plugs, give an inacurate plug color reading to see if the engine is running efficiently, also, when these little carbon deposits add up, the get red hot, and create hot spots in the combustion chamber, these little sparks from this, is one of the main reasons for preigntion and detonation in higher compression engines. Also, in low rpm engines, the slower the burn in the cyl the better, low rpm engines, like tractor engines have so much more time to create efficency over a high reving engine. See racing fuel like C-12, is meant to burn very fast in the cyl. At high rpm the fuel has to get in, burn up fast and get out, ready for the next charge. C-12 helps lite the fire better in the high rpm engines, and makes power and torque at the high rpm. at low rpm,, that fuel does not work as well as other fuels. the burn time is way too fast for the rpm, it does burn well, but just dont burn long enough to help a low rpm engine make power. Tractor engines,, are slower in operation VS the racing engines. There is so much more time to create efficency and be able to recognize the engine charateristics to establish a bit of different technology to make these old engine run so much better. Thats my opinion on fuels, and octane. Let me ask you a question,, on the work horses, what was the most common break down inthe cyl head on the IH 6's? Valves? rings, cracking heads? ChadS
Follow Ups:
Home
| Forums
Today's Featured Article -
Choosin, Mounting and Using a Bush Hog Type Mower - by Francis Robinson. Looking around at my new neighbors, most of whom are city raised and have recently acquired their first mini-farms of five to fifteen acres and also from reading questions ask at various discussion sites on the web it is frighteningly apparent that a great many guys (and a few gals) are learning by trial and error and mostly error how to use a very dangerous piece of farm equipment. It is also very apparent that these folks are getting a lot of very poor and often very dangerous advice fro
... [Read Article]
Latest Ad:
Sell 1958 Hi-Altitude Massey Fergerson tractor, original condition. three point hitch pto engine, Runs well, photos available upon request
[More Ads]
Copyright © 1997-2024 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 HeadquartersWebsite Accessibility Policy |
|