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Farmall & IHC Tractors Discussion Forum
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Blending fuel for warmed up 450

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MarkinIN

01-07-2006 15:45:06




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My friend has a warmed up 450 with 210 p.s.i. compression and we were wondering if we should run a blended fuel to keep it from detonating. What do you folks run, and what kind of success do you have in blending your fuel? This tractor is used mostly to plow pulling 4-16"s very seldom will it be pulled.
Thanks Mark




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ChadS

01-08-2006 12:18:21




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 Re: Blending fuel for warmed up 450 in reply to MarkinIN, 01-07-2006 15:45:06  
Try to find E85. Mix it half and half with 93 pump gas. like 5 gallons of E85 to 5 gallons of 93 octane. Will make a nice cheap fuel that will make power, and control detonation, and preigntion. ChadS



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champspa

01-07-2006 17:04:13




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 Re: Blending fuel for warmed up 450 in reply to MarkinIN, 01-07-2006 15:45:06  
mine has 210 psi . I run it on 93 octane at 25 degrees advance and it runs great no knock



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the tractor vet

01-07-2006 16:27:19




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 Re: Blending fuel for warmed up 450 in reply to MarkinIN, 01-07-2006 15:45:06  
You should be running C 12 VP with that much comp. and running the timeing at around 28-30 degrees



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champspa

01-07-2006 17:06:27




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 Re: Blending fuel for warmed up 450 in reply to the tractor vet, 01-07-2006 16:27:19  
I'm dumb tell me what c 12 vp is . I hate guessing



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the tractor vet

01-07-2006 18:12:10




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 Re: Blending fuel for warmed up 450 in reply to champspa, 01-07-2006 17:06:27  
It is a racing fuel that will work well for and engine that has that kind of compression or one of the older performance cars on the strip i can not at this moment remember what octain it is but it is over 100 i am thinking like 105 , Heck the 93 octain is bearly enough for a 460-560 706-806 gasser . And with the price of diesel it is getting to the point that my buddy and i were talken about it today that with diesel going up it just might be cheeper to get an other 706 gasser to farm with .

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champspa

01-08-2006 05:42:29




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 Re: Blending fuel for warmed up 450 in reply to the tractor vet, 01-07-2006 18:12:10  
thanks Tractor Vet , now I know . I'll give it a try would aviation fuel have 105 octane?



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Janicholson

01-07-2006 16:22:02




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 Reference Article on fuel for warmed up 450 in reply to MarkinIN, 01-07-2006 15:45:06  
The answer is to use fuel that just precents knock. That compression pressure is high enough to warrant the use of at least 92 octane unleaded. (even that may knock), Farmalls are not sophisticated in timing, nor mixture. As a result the answer may be trials to determine the lowest octane that will keep it from knocking.
Please find the following info. I believe it is as accurate as anything I've read and is to the point.
JimN

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anicholson

01-07-2006 16:23:38




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 OOPs in reply to Janicholson, 01-07-2006 16:22:02  
Reference=http://www.prime-mover.org/Engines/GArticles/octane.html



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