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4020 Deere Diesel

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John

05-27-2002 18:18:18




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Hey guys:

I'm wanting more information on pulling these tractors. I was wondering about different classes. If you install a different cam or an M&W kit how does this affect the class you are in? They change from being purely stock to having engine mods don't they? What are a few litle tricks you can do get good results while pulling in the stock class.

Thanks guys!




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John

05-30-2002 05:28:08




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 Re: 4020 Deere Diesel in reply to John, 05-27-2002 18:18:18  

Okay guys, thanks for the help. Now, how much power can I make with a naturally aspirated engine? How much can advancing the timing and adding a little more fuel help these 404 engines? Would it help to add injectors from a 404T or something along these lines? I was thinking though that if you want serious power you would have to put on a turbo to get boost to burn more fuel. All opinions appreciated.

Thank you

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Cookie

05-30-2002 12:26:18




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 Re: Re: 4020 Deere Diesel in reply to John, 05-30-2002 05:28:08  
A couple of tricks that i have learned are get a intake manifold of a 4230 they let more air into the engine.Another trick is to change the springs in the injector pump to a 7-3 spring to get more feul.When you do this it is also wise to have somebody laser out the injectors this will cost about $60 dollars a hole the only reasons I say this if you try to run the fuel high it will seize the pump up.Depending on the rules you may also want to take out 3 of the govenor weight to get more rpm's.Also take unhook the intake hose and attach a filter right to the intake to minimize the restiction.Reset the vavles to make sure of no fluttering, all this should be good up to 145 hp with maybe $500 dollars of money.

good luck Cookie

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G-MAN

05-30-2002 07:58:49




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 Re: Re: 4020 Deere Diesel in reply to John, 05-30-2002 05:28:08  
John, if you want to maximize the performance of your naturally aspirated engine, you're probably going to have to beg, buy, steal or borrow some dyno time and just start playing. The head and manifold porting I mentioned will help on an NA engine, and anything else you can think of to ram more air in those cylinders will, too. I don't have any experience with it, but you might be able to install larger valves in your engine. I don't know how much horsepower you can gain by playing with the fuel delivery and timing, but you could probably pick up 20 horsepower, anyway. There are also other little tricks, like propane injection, but I don't have any experience with that. NA engines seem to just have a built-in barrier, because you can't just bolt on a bigger turbo or add an intercooler to up your horsepower. 404T injectors might have higher opening pressures and dump more fuel in, but once again, you have to have the air to burn it, or you're just defeating the purpose. I have seen some really good running "stock" 4020s, but those guys had enough time and money in them that they could have easily added a turbo - probably for less money in most cases. Good luck with your tractor.

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JDJIM

05-29-2002 22:27:30




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 Re: 4020 Deere Diesel in reply to John, 05-27-2002 18:18:18  
I have no experience in a NA class but if you are going to run a turbo class I'll give you a couple ideas . M&W manifold , 4430 manifold will bolt up but won't fit under hood . Schwitzer 3LD-279 turbo or Air Research TO4 equivalent , don't go too big . A good .370 inj pump head , 4430 intake and cam from turbo engine 404 or 466 they sub over to the same ##'s now . G-Man mentioned the cam and every thing else he said should be done . If every thing else is in GOOD SHAPE this combination should get you 200hp maybe a little more for pulling ," NOT FOR FARMING " . Run it 120 -25hp for farming and it will live far a long time . I also have the M&W fan , shroud and aluminum pan on my '64 PowerShift . I run it at 120hp , been using it on the 1000gal sprayer and 30ft rotary hoe this past couple weeks , soon as the planting is done it's going on the 15ft BushHog . Just a couple ideas , JIM

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G-MAN

05-29-2002 16:04:11




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 Re: 4020 Deere Diesel in reply to John, 05-27-2002 18:18:18  
I am not a pulling expert, especially when it comes to New Generation tractors, but I'll see if I can help you some on improving performance in a "stock" tractor. First of all, make sure your engine is in top shape - good compression, etc. Then make sure your fuel system is performing up to snuff - pull the nozzles and have them tested -if they're weak or faulty, replace or rebuild them. A guy can bump the opening pressures up some to increase atomization of the fuel and get better combustion, but I can't tell you the practical limit on that. Make sure your transfer pump is supplying the proper fuel pressure to the injection pump, as this can make a huge difference in power. Next, anything you can do to improve airflow into the engine will help, such as a good flowing air filter (shouldn't be hard to adapt a K&N or something to fit in the same location as the stock filter housing. Some head and manifold porting will also help, although not as much as turbocharging. A change may help also, but I don't know what's out there. Maybe a 4320 cam has more lift, being out of a factory-turboed engine. Air is the real key, because if you can't get the air in, all the fuel in the world won't make any more power - it just leaves the engine as black smoke. The ideal engine would make maximum power without smoking at all - as it would be burning all the fuel it was given completely and efficiently - but that is a hard balance to strike, especially in the old mechanical engines. The rule of thumb has always seemed to me to be over-fueling the engine, that way you're sure you're getting everything out of it. But if you have access to a dyno, you can make adjustments to your pump to maximize power without looking like a mobile oil-well fire. You're best bet may be to go to some pulls and ask the successful pullers what they've done, etc. And don't limit yourself to simply talking to Deere pullers - most of the tricks will work on any engine, regardless of manufacturer. Good luck with your tractor.

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