Turbo charger

[deere755]

I have noticed that some of the new models have a turbo charger. Is it possible to add a turbo to older diesel models like a 755 Deere?

 

[notamustang]

I dont know about the tractor specifics but they can turbo anything Jeeps, Rice burners, water craft, sand rails, tanks etc...So yes someone can /forums/images/graemlins/grin.gif /forums/images/graemlins/grin.gif /forums/images/graemlins/grin.gif If you can do the manifold fab work you would save yourself a ton of money. You might loose some of your body work too. I am sure that someone has done it here or reasearched it. You might be able to get the parts of a existing tractor/motor to make it easier too.

 

[TractorLegend]

Automotive engines that are turboed usually have lower base compression, and reconfigured timing

 

[ZJ_HR]

You can add a turbo, without modifying that parameters. It will just "breath" easier and have less smoke. Maybe some hp more without new injection pump setup.
If you want more (20-30%) hp, then mentioned modifications will be necessary.

 

[hobbyfarm]

deere755,
Yanmar may make a version of this engine with a turbo. If so, a bunch of cobbling parts together is already done for you. You'll just need to possibly have the injectors and pump set up for use with the turbo.

Oh, and besides more power, less smoke, turbos have a "muffler" and spark arrestor effect. /forums/images/graemlins/smile.gif
Just like adding 4 wheel drive to a non-4X4 pickup, because its "sentimental" /forums/images/graemlins/confused.gif value, it may not be worth all that you may end up putting in it. /forums/images/graemlins/crazy.gif /forums/images/graemlins/wink.gif

 

[TractorLegend]

Maybe ya could go with a propane injection set up for wheelstands??

 

[Egon]

And definetly crank up the boost. Give you a reason to get the latest in design technology! /forums/images/graemlins/grin.gif /forums/images/graemlins/grin.gif

Egon

 

[aardvark]

I honestly don't see turbocharging as a big plus if your tractor is hydrostatic. The engine output is mostly dependant on the load produced by the pump, and the pump is only going to push as much flow and pressure as it was designed for per the tractor specs. Now if you put in a hydrostatic pump which is like twice the capacity, and then turbocharge and double the power, that's different. Or, if you have a gear drive tractor, then the additional power gained can actually be used.

To answer the question though, yes you can fab up a tube header and exhaust pretty easy. It's better to base the project on a turbo with an internal wastegate, since packaging the system will be easier. This may not make a diffference since most of the turbos in the typical tractor power range are tiny, and are usually internally wastegated. I would build from stainless steel tube, laser or plasma cut the flanges, and build a log style plenum to mount the turbo rather than a merge style collector. The merge collector is hard to build if you haven't done one, and frankly, for say a 60hp tractor engine, the power level is so low a merge collector isn't even needed.

 

[Av8r3400]

Without the additional air (oxygen) supplied by a turbo, propane injection will add little if any more power. Propane injection only works on a turbo diesel with excess boost available.

It also proves very efficient at melting pistons. /forums/images/graemlins/blush.gif

 

[RobertN]

Good theory on the hydro. That is what I have seen with friends Jet boats(an engine connected to a big pump). Seen some folks throw thousands of dollars into thier engines, with minimal gains in boat speed. I had another friend some years ago, with a mild motor. BUT... He had his jet pump blueprinted/balanced/detailed out. The boat was quicker, faster overall, and did better on fuel consumption. At the time, the pump work cost less than a grand.