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Old 06-27-2021, 01:08 AM   #1
Mini-Skoolie
 
Join Date: Jan 2021
Location: Elgin, TX
Posts: 29
Engine swap to different engine, vt365 for dt466 or dt466e

I have a 2005 IC bus with a vt365 and an allison 2500. The bus body and frame and interior are in great shape. The engine doesn't run.


I am considering trying to put a different engine, perhaps a mechanical dt466 or dt466e, in place of the vt365. I have some questions:


- does the allison 2500 have a stand-alone controller, or is it integrated with the engine controller?


- the accelerator pedal is electronic. Would it be practical to fab up a cable to connect to it so that it can also control the engine throttle for a dt466?


- would I be able to tie in and use the tachometer and gauges? I assume those are electronic. Is there any reasonable expecation that I would be able to use them with a different or non-electronic engine?


- would it be better to use a dt466e or dt466?



- if I did use a DT466e, would it almost be a direct swap, and just change the computers? Would wiring connections be the same?



Basically I would like to make something out of this bus. If it would be worth it, at all. I understand that it would not be simple. But it would be great to have a double-overdrive transmission behind a great engine. So perhaps it could be worth it?

wanderingturtl is offline   Reply With Quote
Old 06-27-2021, 02:18 AM   #2
Bus Crazy
 
Join Date: May 2018
Location: topeka kansas
Posts: 1,149
Year: 1954
Coachwork: wayne
Chassis: old f500- new 2005 f-450
Engine: cummins 12 valve
Rated Cap: 20? five rows of 4?
A guess

The transmission may perform better with dr466e. This will not be a direct swap. Considering that both engines have a front mount near the pulley the rear will further back . Drive shaft, engine/transmission mounts will be in a different place. Placement of alternator, air compressor, fuel line, radiator hoses, radiator fans, all are likely to be in different places, and that means different connections. Then, I suppose there might be a different engine cover if this is a front engine bus.

William
magnakansas is offline   Reply With Quote
Old 06-27-2021, 02:24 AM   #3
Bus Crazy
 
Join Date: May 2016
Location: Georgia
Posts: 2,264
Year: 2001
Coachwork: Blue Bird
Chassis: IH
Engine: T444E
Rated Cap: 14
The DT466 is a physically longer engine than the VT365, you'd have to cut the firewall.
Easier swap would probably be to a T444E, which is about the same length, though for the cost involved, you could just as cheaply, and much more easily buy a bus already equipped with one.
If you are determined to swap engines anyway, why bother with a DT466 if you can move on up to something even more powerful than that, like an M11 Cummins, a 60-series Detroit, a 3406 Cat, or an ISX Cummins?
Brad_SwiftFur is offline   Reply With Quote
Old 06-27-2021, 08:58 AM   #4
Bus Geek
 
Join Date: May 2009
Location: Columbus Ohio
Posts: 15,977
Year: 1991
Coachwork: Carpenter
Chassis: International 3800
Engine: DTA360 / MT643
Rated Cap: 7 Row Handicap
for the wiring to be a direct swap youd need an EGR 04+ 466E as the ECM-II connectoirs are different than the pre EGR.. a swap i wouldnt make..



a DT swap needs all kinds of new stuff.. the radiator and CAC are different, coolant system, esp if you go to a pre 04 466E now you need complete new harnesses .. a mechanical 466.. youll need a throttle box to run the trans.. and it will be mediocre..





the allison runs best when fully integrated to an engine computer.. you can ake them work standalone but its a crappy integration..


whats wrong with the 365? is it blown up was it a bus bought as a non-runner?


you can build anything you want like brad says but how much fab and custom integration are you willing to do? and how much $$? if you are thiunking an engine swap is a money saver? Wrong..



if you want to build a cool as hell rig then build it and be ready for some fab and $$ and fun. if you are looking to just get on the road then either fix the VT or scrap the bus and buy another one
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