Two Things about Diesel engines...

MJPetersen · Jul 8, 2007

Lay8n, Only in the most extreme circumstances of overloading could you possibly overheat the exhaust gases on a stock tractor. It would be so rare that you should not even worry about it -- unless you habitually lug the engine and watch the black smoke roll.

The water temp is another matter and you should test your indicator light frequently and/or look at the temp gauge. But that is true of your car too, not just a tractor.

Mike

Lay8neyetdaddy · Jul 9, 2007

Thanks MJ, I'll tractor a little easier.

Being in commercial refrigeration, the compressor is the heart of the system,
and will shut down if it doesn't operate within certain limits. Pretty neat really

patrick_g · Jul 9, 2007

john_bud said:
I have more hp on my stock Kubota L3410 than the tires can put to the ground for most things. BUT, 3-5 more hp would be nice when maxing out the loader plowing into a pile of spoils and the engine dies....

jb

Oh goody, I'm not the only one who kills the engine trying to flail away with the FEL a little too robustly.

About hot rodding a tractor... I sure didn't mean to upset anyone.

I do believe that normally aspirated diesel tractors, especially CUT's PROBABLY don't need a pyro. If that were not so then surely several models would come with one but I have never seen one stock. (Anyone else seen one on a stock CUT?)

Probably is not a scary word if you understand the context and when exceptions are reasonable. In the context of my "INFLAMATORY" comment, probably meant: most likely, odds are, in general, most usually, principally, under ordinary circumstances and such. I'm sure someone with a little thought given cold envision a scenario where a pyro might make sense on a normally aspirated CUT. Nothing leaps to mind.

My Dodge dealer doesn't like to work on my truck because it has too many after market mods. They aren't used to seeing much or any "trick" stuff. They were confused by my putting an earlier model intake manifold on to "lose" the California Special EGR garbage. They are also my tractor dealership and they don't mind working on my stock Kubota.

I apologize for whatever I said or how I said it that was taken as offensive. I prefer to not be misunderstood like that as I really do make it crystal clear if I am giving someone a hard time and this was not one of those occasions.

Oh, I do have a pyro m=on my slightly hot rodded Dodge and I want one on my 2008 stock Ford just because.

Pat

MJPetersen · Jul 10, 2007

I would like to add a turbo not because I need the hp, but because I like the sound and looks of a turbo.

Like many of our small tractors I already cannot put all the hp that I have to the ground--wheels spin before I run out of power.

There was a guy that posted on the forums that had a YM1110 I think that had turbo'ed it and it was very interesting. If I were to turbo my little 1510D then I would put a pyro, but stock I am not doing anything that would heat it up.

I have a Ford Mondeo 1.8 liter turbo diesel car and a VW 1.9 turbo diesel van, so a Yanmar 1510D with a .9 liter turbo would feel at home!!

Ah the whistle/whine of a turbine is like music!!

Mike

patrick_g · Jul 10, 2007

MJPetersen said:
Ah the whistle/whine of a turbine is like music!!

Mike

Mike (et al) I can get you that sound a lot cheaper and with no detrimental effect to the engine and driveline. When I was in the service I was in flight simulators. Among other effects we simulated were the various sounds of the aircraft. We had RPM dependent turbine whine, speed dependent slipstream noise, A/B etc. A not too complex electronic circuit with an input from your tach and the output piped to your headsets and YAHOO you got all the turbo sound effects you want!

P.S. You can do that for the potato potato potato exhaust note on a nice quiet BMW bike if you like to fantasize about being James Dean on a big bad Harley ego compensator model.)

Pat

MJPetersen · Jul 10, 2007

Ahhh! It just would not be the same. But if you properly size a wastegated turbo and limit boost to under 8 lbs you are not likely to hurt anything. Especially if you do not turn up the fuel.

Just the whine of spool up and down. Sweet!!

Mike

schmism · Jul 11, 2007

1) no
2) no .... mostly because i have an HST.... wether i have 30hp or 40 hp, my poor HST crys uncle at the same bypass pressure....

It MIGHT be usefull for PTO use, but it doesnt get me any more pulling grunt....

plowking · Jul 13, 2007

No,No. To add turbo to a diesel engine, do you have to adjust boost to compression ratio of engine? My 6.5 chevy diesel has a compression of 21/1 but I see aftermarket performance builders, especially marine engines, will lower compression to 18/1 and increase the boost. The turbo on my chevy doesn't have an intercooler, but my freightliner does. plowking

MJPetersen · Jul 14, 2007

plowking, You do not have to lower the CR when you add a turbo, however many engines that were designed for a turbo will have slightly lower CR often involving a dished piston. Reason space for more air and therefore more fuel can be injected and the result more HP.

mike

Dascro · Jul 14, 2007

This post is interesting to me because it seems the Kubota B7610 (rated at 24 hp) and the B2630 (rated at 26 hp) share the exact same engine. Since I own a B7610 I always wondered if there was a simple change that could be made to get the B7610 to 26 hp. Not for pulling or traction, just for pto.

Does anyone know how Kubota does this safely?

Dave

diyDave · Jul 14, 2007

If that 5' bush hog is too much for your tractor, why not just chop a couple of inches off of each blade!

john_bud · Jul 15, 2007

Dascro said:
This post is interesting to me because it seems the Kubota B7610 (rated at 24 hp) and the B2630 (rated at 26 hp) share the exact same engine. Since I own a B7610 I always wondered if there was a simple change that could be made to get the B7610 to 26 hp. Not for pulling or traction, just for pto.

Does anyone know how Kubota does this safely?

Dave

In general by recalibrating the fuel pump and or using larger / more holes in the injectors. Can also change the pop-off pressure.

Call local fuel injection service guys. They can probably do it -- but at a cost.

The MFG just sets them all up the same way for more power from the get go. Having it set that way later, is a bigger deal. But, you may be lucky and the pump may have a screw to turn to increase fuel delivery - some designs do.

jb

Dascro · Jul 15, 2007

Thanks John_bud,

I thought it might have something to do with the injector pump, but wasn't sure. Since that is such an expensive piece of hardware, if its not something that be changed easily (and that be returned to factory conditions easily tool!) I doubt I'll try anything with it.

Thanks,
Dave

psj12 · Jul 19, 2007

In most cases a high pressure injection pump can be easily adjusted to provide more fuel. This may or may not result in more power depending on the engine manufacturer. Many makers slightly reduce max fuel to extend the longevity of their engines, meet EPA requirements, or to make a higher horsepower engine function in a lighter framed tractor.
You need to find the rack adjustment screw on your pump and turn it no more than 1/4 turn towards more fuel. Start the tractor and accelerate hard in a higher gear and look for smoke. If it does not smoke excessivly you can continue in 1/4 turn increments until it produces a puff of smoke (not too dark or black) when first accellerating. You can leave this setting or reduce it back 1/4 turn. This should be your highest fuel/power setting. This works only with mechanically injected engines with high pressure pumps. The rack adjustment on different type pumps are located in different places and may turn different directions to adjust.

firefighter9208 · Jul 19, 2007

Bullydog performance makes a module that gives you 30% more power if you have an 8000, 8010, or 8020 John Doore. They also have a module that works on the Valtra T120-T190, New Holland TM175 and 190, CASE MXM 175 and 190 and Massey Ferguson 6400 Series. Plug and play. Bully Dog is the world leader in diesel performance parts, for Ford, Dodge and GM trucks.

Chris

patrick_g · Jul 19, 2007

psj12 said:
In most cases a high pressure injection pump can be easily adjusted to provide more fuel. This may or may not result in more power depending on the engine manufacturer.

Very well said indeed. Your procedure will get close to the max (reasonable) power since the more fuel you burn the more power you can develop. (Just adding more fuel doesn't guarantee it will be burned efficiently or at all in some instances) There is a diminishing returns sort of thing where each added increment of fuel produces less additional power than the one before it until finally you go so far that you reduce power output. You will have already begun to smoke like crazy and economy has plummeted and internal temps have skyrocketed before you get very far into the loss of power part of the curve.

It is a good idea to install a pyro if you are going to try to develop more power than the MFG sets up your engine for.

Lets toss in a word about heat and overheating. Did I mention HEATING/OVERHEATING. You can melt engine parts by overfueling and without a pyro you wouldn't know till it was way past too late. Just looking at a water temp gauge or idiot light will not give you a clue.

I wouldn't recommend anything at all all like this for a tractor in warranty as it will sure invalidate it. In general if you can afford the risk of burning up a new tractor making engine performance mods you could afford a more powerful tractor in the first place.

At least use a properly installed pyro so you have a clue how much extra heating you are causing.

Happy hot rodding,

Pat

hbaird · Jul 28, 2007

I tried the, adjust the rack for a little smoke suggestion, on my Jinma, and got a lot more power. I suspect it was detuned when I got it new. I used the New Jersey State D.O.T. guidline for the final adjustment. The haze from the exhaust is worst case a 30% reduction in the light viewed against a clear sky. W.A.G. on the 30% reduction. You can see it only against the clear sky. I can't see any smoke or haze now with woods for a background.
Harold

patrick_g · Jul 28, 2007

Harold, I hope anyone enforcing that standard has "chips" or transparencies against which to compare. Otherwise the results will be so subjective as to just be an opinion with little or no repeatability from enforcement official to official.

Pat

MJPetersen · Jul 28, 2007

One the ATS turbo kits for the 6.9 and 7.3 liter ford pickups they supplied a piece of smoked pexiglass that you viewed the exhaust through. When it started to be seen through the glass then you had gone a bit to far. Back it up a tiny bit and you were there.

Mike