What is the exact difference between 03/04 and 04.5/05 engines?

[lilthumper]

Yes I did a search. Still haven't found the answer.

 

[jwilliams3]

Piston bowl, exhaust manifold, programming, injector spray angles/hole count, 3 injection events vs 2 on the 03/04. Multi layer exhaust manifold gaskets.

Turbo compressor size, with electronically solenoid for wastegate manipulation.

 

[nickleinonen]

Piston bowl, exhaust manifold, programming, injector spray angles/hole count, 3 injection events vs 2 on the 03/04. Multi layer exhaust manifold gaskets.

Turbo compressor size, with electronically solenoid for wastegate manipulation.

inconel exhaust valves or valve seats [can't remember which???]

 

[p-Bar]

The TDR magazine with Clessie Cummins on the cover has all the info from the 12v to the 05

 

[JHardwick]

3/20

 

[gsbrockman]

305/555's have no kitty

325/600's have a kitty, unless they happen to "wander off" on their way home from the dealership.

Greg

 

[John Robinson]

I`m almost afraid to ask but what the he!! is a Kitty?

 

[gsbrockman]

I`m almost afraid to ask but what the he!! is a Kitty?

Kitty = Catalytic Converter

 

[rbattelle]

Piston bowl,

Interesting... I didn't know that. Anyone know the reason for the change?



-Ryan

 

[JHardwick]

Interesting... I didn't know that. Anyone know the reason for the change?



-Ryan

Compression change most likely.

 

[jwilliams3]

Pretty sure compression stayed the same.

It was spray angles changed with the piston bowl, probably for the increase in power.

 

[JHardwick]

3/20

. 15 then

 

[Texasrattler]

Yes I did a search. Still haven't found the answer.

I think TDR issue 47 or 48 covers the differences in detail.



Pete