[AT] Tractor Diesel Engine question - non-antique

[cchopper at centurytel.net]

Grant,

We all know what has been done in the past as far as turning up the 
fuel.  A good operator with common sense could turn up the fuel and not 
have any problems and then there is the other side of the coin. 

One of the main concerns on newer EPA certified engines is the 
emissions.  If you get your engine/fuel delivery set up, don't go the 
the coffee shop and brag on it.  You never know where an EPA snitch is 
awaiting, it could be costly. 

As far as Hp goes and dynos and 
results.............................Last week and this coming week I'm 
doing some dealer training in the Orlando area.  I dyno test 2 tractors 
8 times a day.  It is amazing the test difference between 8:00 am 
morning, 35-40 degree F., and the 4 p.m test when the ambient temp is 
in the 70's. 

I realize I did not answer any questions but thought I would toss out 
some sideline info. 

Ernie-Samson tractor collector


> ----- Original Message -----
> From: "Grant Brians" <sales at heirloom-organic.com>
> To: "Antique tractor email discussion group" <at at lists.antique-tractor.com>
> Sent: Saturday, February 20, 2010 6:43 PM
> Subject: [AT] Tractor Diesel Engine question - non-antique
>
>
> >I am hoping someone on the list (perhaps Mike Sloane?) can help me on
> > understanding something on recent design Diesel engines. Every tractor and
> > truck manufacturer of any size now has multiple versions of their diesel
> > engines with different Horsepower ratings and Torque rating curves. 
> > Clearly
> > they are varying settings in the controls of the fuel systems and some
> > versions might have a turbocharger or intercooling. What I am trying to
> > figure out is when there is an engine that is NOT electronically
> > controlled
> > (there are still some), what SAFE changes could an owner make to settings
> > to
> > take advantage of the inherent capabilities of these units. 
> >     In particular, I have Perkins and New Holland engines that fit into
> > these categories. In one case the nominal rating of the tractor is 78HP
> > PTO,
> > but my unit was dyno tested when I bought it with 93HP from the factory
> > and
> > others have "adjusted" these engines to get over 100HP PTO. I am also
> > looking at possible acquisition of another tactor that has tractors in the
> > same "family" using the same engine but with different adjustments that
> > are
> > as much as 45% higher horsepower. These variants of the engine are all
> > Tubocharged and Intercooled, so can a skilled and knowledgeable diesel
> > mechanic change the settings?
> >     Inquisitive people would like to know! I am not saying that I would
> > make any of these changes, but I know that in the past when I have
> > converted
> > OLD engines to better components that their performance has materially
> > improved, sometimes yielding 25% more work.... Also, at times the fuel
> > economy has gone up, but I know that would not happen in these newer
> > engines. I do know this would void the no longer applicable warrantee on
> > these engines if one were to perform the changes, but I still have a
> > burning
> > curiousity. 
> >           Grant Brians