JD 4010 injector pump upgrades for pulling March 01, 2015 07:44AM
Got a 4010 JD that im gonna turn into a puller but have to stick with stock appearing injector pump ; what upgrades are out there to turn it up ?
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Re: JD 4010 injector pump upgrades for pulling March 01, 2015 12:54PM
put a 45 head on the rosae master pump
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Re: JD 4010 injector pump upgrades for pulling March 02, 2015 12:41AM
Are you pulling naturally aspirated or with a turbo?

390 or 370 injection head is plenty for Natural (Currently running a 330 head maxed out on a 4020/404ci setup) or the 450 would be good for running with a turbo. Also a soft governor spring would help.
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Re: JD 4010 injector pump upgrades for pulling July 31, 2015 04:07AM
How big can you go before you have to do something with the injectors? and then how big before lines need to be bigger too? Will a 330 or 390 head be okay with stock injectors? How much fuel is a maxed out 330 head putting out? With the 330 head are you running a stock transfer pump or do you use an electric pump?
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Re: JD 4010 injector pump upgrades for pulling August 01, 2015 02:08AM
5020's had .370 heads, just like most AC, and IH 361/407's. The .390 was used in some Minnie/Mo applications. I always suggest guys wanting to go with a huge pump, but not touch the injectors need to re-think their plan, and do the injectors first, then the pump. A good way to ruin an expensive, hard to find head & rotor is max it out, and then just put a stock injector with it. Just an all around recipe for disaster.
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Re: JD 4010 injector pump upgrades for pulling August 04, 2015 02:57AM
injpumped, What would you suggest for injectors? Is there a bigger injector tip that can be purchased off the shelf or do I need to have tips made or buy a used set? Currently have the stock 4010 pump maxed out, looking to go to a 370, 5020 pump. Thanks
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Re: JD 4010 injector pump upgrades for pulling August 05, 2015 02:53AM
the bendix style injectors in 4010's can be machined to larger holes, just like most other injectors. Just have to know what is going on when doing so.
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Re: JD 4010 injector pump upgrades for pulling July 31, 2015 08:35AM
I run stock injectors and lines with a maxed out 390 head and to4 turbo. The 45/450 heads for those pumps are really hard to find now. If you run a pump with that head the pump turns hard enough it will break the stock cast cam. If you find a pump with that size head and want to run it, upgrade your camshaft to a billet piece. The stock head on your pump should be a 31, stock 4020 is a 33. The 39 head was used on the 5020. It was non turbo 531 cubic inch and was rated at approx. 150 hp. Almost forgot, I run an electric fuel pump rated for over 100 gals an hour. I bought it at napa. When you have your pump built have the shop put in the electric fuel shut off solenoid, then wire it on the same switch as the fuel pump. I learned that the hard way, I forgot to turn on the electric pump once, ruined a really nice pull.
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Re: JD 4010 injector pump upgrades for pulling July 31, 2015 09:04AM
Thanks for the info, jd4020puller. How much fuel are you putting out with a maxed out 390 head? We have the stock 2 roller, 310 head, maxed out and it's putting out about 110 cc's. I was looking at an old JD pump book and all I saw were 370 heads, no 390 heads, were they upgraded later to a 390 head? Is a 5010/5020 a 2 roller or 4 roller head?
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Re: JD 4010 injector pump upgrades for pulling July 31, 2015 09:46AM
To be honest I am not sure on the rollers but CDS said it was putting out 220cc's.
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Re: JD 4010 injector pump upgrades for pulling January 25, 2016 03:07AM
we have a 384 block with 466 sleeve kit and pistons
our injection pump has a 450 head on it and flows 300cc 3k governor anyting over that it and it wont flow anything just spin the rotor in the injection pump .093 lines and 5x.016 FVP kdel injectors
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Re: JD 4010 injector pump upgrades for pulling January 25, 2016 03:07AM
cleans up and we run a aurora 2000 turbo from ATS we pull open with no rules so
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Re: JD 4010 injector pump upgrades for pulling January 25, 2016 12:49PM
if your interested I have a set of bendix injector tips brand new. will sell very reasonable. 419-651-three zero four 2
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