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Discussion Forum

Diesel Engine Theory?

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ToddF

12-26-2002 12:28:18




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I wish a Happy New Year to you all! With the coming of a new year we've discussed a new project. Although we got bit by the pulling bug while on our antique JD and Farmall, we've made a living working Blue tractors. We're thinking of a Ford 5000 with a turbo to pull in open classes. I know this is a little off the path for this board, but I'm sure there are some people who wouldn't mind the topic. After donning our hayseed engineer hats we started the discussion of what are the dominant factors that limit the RPM of a diesel motor? We think that if you can get air into a gas engine you can get it into a diesel. We decided that the limiting factor is likely either the ability to supply fuel in sufficient quantity in the defined time period, or the burn rate of the air/fuel mixture may limit the RPM. I guess our real question is how many RPM's should we be looking to turn, and what will the challenge be in making it work? Does anybody know of a decent reference for building high performance turbo diesel's?

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Paul

12-26-2002 16:28:23




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 Re: Diesel Engine Theory? in reply to ToddF, 12-26-2002 12:28:18  
all engines are air pumps diesel or gas that being said there are two draw backs to a performance diesel. one is that every lower end component must be stonger rods cranks blocks sleeves and pistons.if the rules dont state a cubic inch limit you would be able to make the gas burner larger therfore putting your diesel at a disadvantage. two is the problem of getting enough fuel at the right time from about 2000 rpm up to about 5000 rpm. getting the quanity of fuel is not a big problem however timing it may be. also when injectors get bigger and compression ratios go down ( for high pressure multiple turbos)they get hard to light( start) diesel in and of itself would make a good high rpm fuel because of its rapid burn rate but top fuel drag cars use a slow burn fuel and make more horsepower per cubic inch than anything short of a jet engine. I just love smokers but if your going to step up to play watch what others are doing and pay a pro engine builder to help you it will put money in your pocket in the long run Paul

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TimC

12-26-2002 16:22:08




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 Re: Diesel Engine Theory? in reply to ToddF, 12-26-2002 12:28:18  
JimF on page three listed a new forum. Lots of good info there and guys willing to help. Lurk around there until you find the right group. SS or PS in the NTPA area is where I would start.
There are a couple of good diesel mechanics there.

Link

Hint, cams and valves if you are providing the turbo.



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Darren

12-27-2002 22:42:50




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 Re: Re: Diesel Engine Theory? in reply to TimC, 12-26-2002 16:22:08  
Go to fullpull magazine homepage or NTPA homepage, look up Riverside Engines in Ohio and Columbus Diesel Supply. Both are great engine builders and know all there is to know about pulling.



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Todd Lees

08-23-2005 11:01:32




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 Re: Re: Re: Diesel Engine Theory? in reply to Darren, 12-27-2002 22:42:50  
I would like to know how a diesel motor works. I bought 02 dodge and dont know any thing about it.(what to look for if it won"t start.)I pull 28 ft trailer and really like it .



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