How to rebuild a Tractor Pulling 4.5ton Sportstractor

That's "the Making off..." our John Deere 4430 from 1972.
We bought that Tractor in France and rebuild it. We tuned him up a bit too for Tractor Pulling. He competes in the 4.5ton Sportscategory.
Specifications original:
6,6l 6 Cylinder Turbocharged engine
125hp
Weight: over 5 tons

The Changes we have done 2007:
Decreased the compression to 14,5:1
Put a Holset HX 50 Turbo on
Flowed Cylinder head
Bigger inlet-valves and stronger springs
Injection:13mm elements in a Bosch A Pump
Combined the pto and drive clutch by welding the two shafts together
Taking all the pto-stuff out wich is not used anymore

Estimated Power: 350hp

Setup 2008:
Rebuilding Clutch
Rebuilding Camshaft
Gearboxwork

Power 2008: 450hp ???

More News: www.tractorpullingzimmerwald.ch

Thanks for your comments...
If there are questions... just ask.

Category:

Sports

Tags:

• John
• Deere
• 4430
• 4.5ton
• Sport
• Zimmerwald
• Switzerland
• Swiss
• Tractor
• Pulling
• Schweiz
• Full
• Pull
• Craig
• Morgan
• QL

[onlycoolpeoplealoud7]

WOW! your the smartest mechanic in the world

pitty it blew up

[Samswiss]

i m not a mechanic...

[superduetz8005]

where did you get that fuel pump made? and how much did that cost? i want to put some thing like that on my deutz 130 06

[Samswiss]

From a guy in the netherlands. costs quiet a lot. was the most expensive part of the whole tractor.

[betturbo]

i have seen you in holland this sunday the tractor is very nice,sounds nice but way dit you drive that slow in holland?

[Samswiss]

Hey betturbo.

Thanks for the compliments.Well, the reason why i drove so slow is simply because in a bigger gear he would have died. In this cathegory (4.5ton Eurochallange = simular to 4.5ton Supersport in NL) there were Tractors with 9 litres engines, intercooler and far above 1000 hp. I m competing in the 4.5ton Sport cathegory. You are only alowd to have 7 litres engines without intercooler. Wich means with 550 hp you can't drive as fast... as the strong guys ;-)

But i had a lot of fun ;-)

[blownandinjected]

@Samswiss It's nice to see rednecks are world wide. Love the vid!

[vespa130pinasco]

nice!!!!!

5 *****

[cameron947]

Awsome job and tractor, and this is coming froma farmall guy. So what turbo did you replace the HX50 with? Because 5 bar is around 70 psi so I think a 2.6-3.0inch inducer Schwitzer S366 might be a good replacement. Just an idea, keep up the pulling!

[aaron490]

Nice work, great video. Good luck in the future.

[satellitetune]

Great vidio

[dankcorey2424]

This is an awesome vid. I wish there was more performance rebuilds like this!

[racer6583]

Hay samswiss that is one bad deere glad you shared that with us good luck in every pull.

[chevygearhead454]

Pull that thing in fisrt thats where the most lugging power comes from and your not gonna carry momentum with a sled

[badger290]

un bon vidéo bravo!!! bon montage photo.vidéo...et de tracteur!!!

[EarlRausch]

Now that was a Sweet video !! at first you guys looked like you dident know what to do. But all I can say is you boys are the REAL deal. You took her down to nothing and made one heck of a puller WTG.

I was wondering how much boost you were running then I saw the intake manifold blow. You did a real nice job with the new intake,

Swiss watches and now Swiss Super Tractors.

Thanks a bunch for the post now I think I will get my Super C ready for a tractor pull hehe.