John Deere 3320

[stlbill]

Hi everyone:

I vote with the majority. There is no free horsepower. Any adjustment you make will have a consequence.

You mentioned your intent to resale the tractor. I am already less interested in buying it. I would be afraid the "consequence" hasn't happened... yet.

And I guarantee you I would look on TBN for ways to tell if a tractor had been user-modified contrary to manufacturer specification.

Just my $.02....

-Bill

 

[GRNTexan]

But once again, by the time your done doing it "right", you coulda just bought the correctly sized machine...resale on your "Super 3320" would be the same as a normal 3320 because how can you proove you got 37hp?

A Big GREEN Dyno................???????????????

 

[joes_427_vette]

It might be the same cubic inch engine but chances are that is where the likeness ends. Different components , beefed up block with extra webbing, forged parts, larger bearing surfaces just to name a few. Get the parts break down and you will be surprised. Turning up the pump is just the beginning.
My moto is live with what you can afford. Sounds like your a better broker than mechanic. If I were you I would stay out of that kitchen.

 

[RoyJackson]

It might be the same cubic inch engine but chances are that is where the likeness ends. Different components , beefed up block with extra webbing, forged parts, larger bearing surfaces just to name a few. Get the parts break down and you will be surprised. Turning up the pump is just the beginning.
My moto is live with what you can afford. Sounds like your a better broker than mechanic. If I were you I would stay out of that kitchen.

Easiest way to find out if it's the same engine is to look over the tractors' specs and see if it's the same Yanmar engine. The 3320 engine is the Yanmar 3TNV88, the 3520 is the Yanmar 3TNV84T. The 3320 engine has 100 cubic inch displacement naturally aspirated and the 3520's engine is 91.5 c.i.d. and turboed.
FYI, the 3520 and 3720 do use the same engine.

 

[mfreund]

Easiest way to find out if it's the same engine is to look over the tractors' specs and see if it's the same Yanmar engine. The 3320 engine is the Yanmar 3TNV88, the 3520 is the Yanmar 3TNV84T. The 3320 engine has 100 cubic inch displacement naturally aspirated and the 3520's engine is 91.5 c.i.d. and turboed.
FYI, the 3520 and 3720 do use the same engine.

Once again Roy has the answer. Turbo on the 3320!!!

 

[Tritonman]

I am picking up the tractor next week sometime. I can't wait to have the AC on when I am working my food plots. That will be awesome.

 

[Nuru]

Actually the motor in the 3320 is slightly larger than the the one in the 3520 and 3720.

 

[Spudland_Dave]

It might be the same cubic inch engine but chances are that is where the likeness ends. Different components , beefed up block with extra webbing, forged parts, larger bearing surfaces just to name a few. Get the parts break down and you will be surprised. Turning up the pump is just the beginning.
My moto is live with what you can afford. Sounds like your a better broker than mechanic. If I were you I would stay out of that kitchen.

You honestly think thats true? I got some news for you.... In todays industrial world economies of scale FAR outweigh the cost of materials... An example of what i'm trying to say: its way cheaper to cast ONE single type of block and then perform the necessary machine work to make different models... In this case they cast a single block for the entire 3TNV series... on a 3TNV88 they bore it out a little less then they do the 3TNV84. Even assuming all the engines were exactly the same, its cheaper to just derate them. Cat does exactly this on its OTR engines...you can buy a truck with a 350hp engine and if you want more, run on down to the Cat shop with a wallet full of cash and they can ReRate your engine to 425hp.....

The increased MSRP of higher HP tractors in a series dont necessilary mean it costs more to produce... Many times the actual production cost is exactly the same...

A Real world example of this is even evident on the configuration of these engines...we have 2 oil fill ports...Why....because its cheaper to buy these engines "off the shelf". Some of these engines end up in Komatsu mini ex's, some in marines applications, some in Generators and a few of them end up in 3x20 tractors

 

[CinderSchnauzer]

Right in the JD line:

JD 2720 with Yanmar 3TNV88 rated 31.4 HP @ 2500
JD 3320 with Yanmar 3TNV88 rated 32.8 HP @ 2600

 

[AKfish]

What Dave is saying and Cinder pointed out is "case in point" - but has been going on for DECADES! Not a recent development... Look at how many different models that JD has produced over the year's that have the same displacement; i.e. - same engine - different Hp.

That said -- there are differences -- and they are not easily determined by the uninitiated or those without extensive experience.

It takes time and money; and sometimes - expensive mistakes, before you get it right.

So, if your "gears turn and your motor runs" just thinking about how you're gonna get that extra 5 Hp -- turn the key!!

AKfish