Whats the difference between K03 and K04

[zemun2]

Hot side housing's?

[diztek]

isnt it the turbine. dont they use k04 turbines in k03 housings.

i dont know.

[Silence]

Depnds on which k03 and k04 you are talking about.

[zemun2]

Originally posted by Silence
Depnds on which k03 and k04 you are talking about.

K04-015 and regular K03 that comes with 2004

[F16HTON]

About 450 dollars

[Silence]

Not sure on the turbine, but the compressor wheel is larger and has a different fin design.

[Mark]

the K04-015 has a different intake turbine, more agressive blade pitch. the instake housing is ever so slightly different due to this.

[zemun2]

I don't care about compressor side, just the exhaust side housing differences between the two.

[Silence]

Don't really know for sure to be honest. I have heard that the newer K03's have the k04 hotside, yet I've heard otherwise as well.

If it is larger, it is miniscule.

[AvanTTix]

Originally posted by zemun2
Whats the difference between K03 and K04

damn... i've got to do it since no one has already...

1...

sorry...

[Mark]

Originally posted by zemun2
I don't care about compressor side, just the exhaust side housing differences between the two.

found this over at AW . . . quick search. Not sure of which K03 though, pre 2001 or not?

1. The K03 and K04 use the same castings for the compressor side and the "hot" (exhaust) side.
2. The K03 and the K04 use different compressor turbines.
3. THE K03 AND K04 USE DIFFERENT EXHAUST TURBINES!
4. The shafts are exactly the same.
5. The cartridge (center section) is exactly the same.

[zemun2]

Originally posted by Avantéix
damn... i've got to do it since no one has already...

1...

sorry...

[diztek]

[QUOTE]Originally posted by Silence
[B]Not sure on the turbine, but the compressor wheel is larger and has a different fin design.

that's what I meant, sorry.

[zemun2]

Originally posted by Mark
found this over at AW . . . quick search. Not sure of which K03 though, pre 2001 or not?

1. The K03 and K04 use the same castings for the compressor side and the "hot" (exhaust) side.
2. The K03 and the K04 use different compressor turbines.
3. THE K03 AND K04 USE DIFFERENT EXHAUST TURBINES!
4. The shafts are exactly the same.
5. The cartridge (center section) is exactly the same.

Based on this info will the K03 exhaust side housing fit the k04 exhaust side housing?

[Jeff]

The original K03 (used in 150hp A4's) had smaller compressor and turbine wheels.

The K03-S (Sport, in the 170hp models) utilize the SAME turbine wheel as the K04-15. The difference between the K03-S and K04-15 is that the K04-15 has a more aggressive compressor trim... diameter and A/R should be the same IIRC.

This information was based solely with my own experience, back in the days while trying to build up my own ultimate "hybrid" (seeing that the E05 and SK04 were failures).