International DT466

[6.4PowerStroke_08]

Does anyone know anything simple you can do to a DT466 to get a little more power out of them? Our work trucks are pitiful cause they don't have any power to climb a hill.

[GoldieStroker944]

i know on the old mech ones u could turn up the pump but i know on our newer feed truck with all the electrical stuff we couldnt but i dunno for sure

[6.4PowerStroke_08]

Yeah this one is an 05 model. I don't know if the truck is so heavy or the truck is just governed so much

[GoldieStroker944]

well i know that our 99 internationals with 24' 67" sides hauling silage and an allison 5 speed auto they dont do to bad but no power house by anymeans

[C-Power]

change the turbo....im not sure when they stopped the mechanical pump but my buddy's dad got a pretty new one and they were able to turn up the pump....

[6point0damn2004]

yeah, ours at work have the MaxxForce DT (newest iteration of DT466), the run really well, just not by any means a speed demon.

[6.4PowerStroke_08]

I was just wondering if all of them was that slow and no power. It seems like any like incline will slow these things down. I guess our trucks are over loaded too. I guess that doesn't help at all either.

[Matt P]

TSperformance makes a chip for the DT466 that gives you a 15-30% HP increase

[JK23112]

Originally Posted by 6.4PowerStroke_08

Does anyone know anything simple you can do to a DT466 to get a little more power out of them? Our work trucks are pitiful cause they don't have any power to climb a hill.

We have some International 4300 & 4700 trucks at work that have the DT466 engine (the big six-banger). The "old" ones (1999 & 2000 models) have been retired, but we still have some '04 to '06 trucks in our fleet. They were 'turned back' by the dealership, I believe, and were electronically prevented from performing to their maximum potential.

I don't know how it is done, but they very quickly went from being able to easily do 73 to 75 mph to only being able to hit 68 mph downhill. There is something in the electronic engine management system where they can plug in a laptop via a port below the dashboard and reset the idle, top speed and power output.


That old DT466 is a good engine, though, and will run forever if properly maintained. We replaced our Internationals with new Sterlings and they're mostly junk. Even though they have good engines (Cummins ISB & ISC), all that smog stuff hinders their performance and fuel economy.

I sometimes drive a big rig - '04 International 9200i - with a Cummins ISM; and I am hoping the boss keeps it awhile longer so I don't have to drive a Sterling tractor. The Sterling tractors have the Mercedes-Benz engine (sweet), but I just don't care for the rest of the truck. Sterling ain't nothing but a "el cheapo" knock-off of a Freightliner.


Good luck with getting some more guts out of those Navistars!!

[bigcountrysg]

Contact a tuning company like TW or DP or TS performance. They should be able to make a custom tune chip for it.

I know you can use the cps from a 466 and put it in the 7.3L psd. It advances the timing 2 degrees and gives you a bit more power.