Does anyone know if it's possible to fit a T444E with an Allison tranny into a SD? I know that used International school buses can be bought fairly cheaply and was wondering if this were possible.

On a side note, I was talking to an International mechanic and he was saying that the turbo's and injectors were larger in the buses that ran the T444. He said it would be an easy way to gain some serious power for not a lot of $. Of course you would prolly need to use the International ECM or have Jody do a custom tune.

 

Hmm... It may depend on cab config? but the Allison is quite a bit more heavy duty then the 4r100. im gonna bet that it wouldn't work, i havnt seen anything about it and with as many great minds as we have here on FTE im sure someone woulda tried it. As far as the injectors, they may have used split shots with different codes (not AB's ... or is at AD's?!) but this isnt gonna add huge noticeable power. Its the same basic engine. Same HPOP, maybe even a smaller turbo depending on the year.

 

With enough money, anything is possible.

However, the T444E's were rated at lower HP than their twin brother Powerstrokes.

 

I just figured if they had the grunt to haul a 40-60 passenger school bus, they would make an Excursion fly.... I do agree that the logistics would be a big money pit. My initial idea was just to get the larger turbo and maybe the injectors and have Jody tune for it.

 

I believe Parkland is looking into the possibilities of that swap. Maybe send him a PM.

 

When was the last time you rode in a school bus powered by the t444e? those drivers have one positions for the pedal...all the way down thats how they haul them around lol.

hes looking at a 466 not the T444E

 

The high torque version of the T444E comes with AC's (generic stage 1). If it was a high torque, and depending on the turbo, it could have the possibility to make 350 hp. This would all depend on the turbo, and if it was actually a high torque model. Every time Ive looked under the hood of a school bus with this motor, they look more like the OBS style, based off fuel pump, turbo etc. Youd be much better off buying parts for your motor.

EDIT, nevermind, I see your EX is a v10

 

Thats right.

The t444e would hardly be worth the trouble of swapping in.

The 466 however, has certain years that the engine is available with mechanical injection, such as 1996, which I've been seeing lots of.

The mechanical injection are easy to spot- they have injector lines and an injection pump.

The mechanical injection pump can be modified, or replaced to push more fuel, and the engine has been used for tractor pulling and such at 2000-3000 HP, so to mod it to a modest streetable 800-1000 HP is my personal goal, without changing internals around or spending a fortune. The estimate for parts is roughly 3000-10000$ depending on what stuff you can get from a wrecker, or buy new etc.

800 HP should give around 1600 ft lbs of tourque, which is already problematic for a tranny, no point in searching for more power.... IMHO this engine would be considered to be an extreme transplant, and shouldnt be considered by someone who might change their mind half way....

The engine itself fits in the engine bay, but if you want a rad and fan the engine has to be moved back, and the firewall cut and modded. I plan on relocating coolers to the box fiberglass cover, and have fresh air from under the truck blowing up, by using the natural vaccum caused in the box driving down the road.

The truck frame may be able to handle the weight, but the front suspension may need to be upgraded, I plan on more springs, bigger shocks, and a nice set of rickson truck wheels 19.5" rims with commercial tires.

 

Parkland, 800 hp, doesnt necesarily mean 1600 ft/lbs of torque. In the powerstroke world it does, because of how our fueling works. For us to make 800 hp, at our max fueling point of pretty much 2800, you would be making 1500 ft/lbs at 2800 rpm. Now say you make 800hp at 6000 rpms. Torque at your max hp of 800 hp, at 6000 rpms, is a measly 700 ft lbs. Now on this same graph, and at 3000 rpms, you may be making maybe 400 hp, and 700 ft/lbs. Torque is all in were you make your HP, and a calculated value. Heres the equation. Play around with it some.

hp = torque x rpm / 5252

 

Holy crap! 6000RPM!!! were not talking sled pulling high modded machine here lol !!

800 / 1600 was a bland estimate, what the diesel shop told me, but yeah, your right, it depends on how everything is set up.

For example, look at the old 7.3 idi's what did they have 400 ft lbs, and 160 HP?? And now are new machines are 350HP with 570 ft lbs...

Looking at a few modded 466's, I see

310 HP - 830 tq

525 HP -1200 tq

your calculation is right, but these ratings are not at the same RPM, IE these engines are making the above numbers, but max HP is at a different RPM than max TQ.

 

Correct, as you see, they have the peak, for both torque, and hp. Both of those numbers are at two seperate rpms. Thats why theres no rpm listed. It makes a peak of 525 hp, and a peak of 1200 tq. it doesnt make 525 hp, while 1200 tq. If they actually put fueling in there to do that, it would be 2300 rpms. And the first one at 1961 rpms. In all reality, those both probably make max hp around 3000 rpms or above. If they had the fuel to do 525 hp, and 1200 tq, and took it to 3000 rpms, that same motor could probably be making 456 hp at 3k rpms, figuring tq to drop to 800 ft/lbs or so. But this all is somewhat estimated, and guessing they had the fuel to make 525 hp, 1200 tq at 2300 rpms. And now Im just rambling.