K04 001 turbo

[smiff]

Basicly i bought a turbo off ebay a few months back that said it was for an s3 on arrival i inspected the turbo and noticed that the boost outlet had been modified it looks about 4inches longer than it should be also it has a 4 bolt exhaust outlet dose this sound right all the other k04's ive seen look different thanks

 

[pj1985]

Whats the part number on it? Thats the best way to tell.

 

[L.R.C.]

 

[smiff]

Thanks for the pic it does look like that ill have to sort a pic and get the part number im at my girlfreinds house tonight thanks again

 

[jamiebennett81]

k04-001 is a borg warner k03s

k04-023 is a proper K04

 

[pj1985]

k04-001 is a borg warner k03s

k04-023 is a proper K04

K04-023, k04-001 and k03s are all Borg Warner turbos. A k04-001 is a k04-001 but it is basically the same spec as a k03s. They are still different turbos though.

 

[jamiebennett81]

K04-023, k04-001 and k03s are all Borg Warner turbos. A k04-001 is a k04-001 but it is basically the same spec as a k03s. They are still different turbos though.

your missing the point, he thought the k04-001 is a proper 225 K04 though

my point was that it is not

The k04-001 is supposedly a slightly higher spec than a k03s and runs a solid 250bhp on the dyno (or more from what I have seen on the vortex threads, but I am purely going on what I have read)

If he says it was a k04-001 off an S3 then this is wrong (as this would be a k04-023) and has either been sold the wrong turbo or he has got his part numbers mixed up

 

[L.R.C.]

k04-001 is a borg warner k03s

k04-023 is a proper K04

Nope...

"K0" is the series of the turbo (ie. Series "KP" "K0" "K1" "K2")
The number is the size (4 is bigger than 3)


The K04-001 compressor:
Inducer: 35mm
Exducer: 50mm
Tip height: 3.7mm
blade design (4/4)

The K03 compressor
Inducer: 33.6mm
Exducer: 46mm
Tip height: 3.7mm

The K03-052 (K03S) compressor:
Inducer: 38mm
Exducer: 51mm
Tip height: 4.4mm
blade design (6/6)


K04-01 turbine:
Inducer: 50mm
Exducer: 42mm
Tip height: 6.4mm
Blades: 11

The K03 & "K03S" turbine:
Inducer: 45mm
Exducer: 38mm
Tip height: 6.8mm
Blades: 11

 

[L.R.C.]

If he says it was a k04-001 off an S3 then this is wrong (as this would be a k04-023) and has either been sold the wrong turbo or he has got his part numbers mixed up

there is the 210hp S3 with the k04-001

 

[jamiebennett81]

there is the 210hp S3 with the k04-001

Interesting to know, never knew that (that must have been a very early version?)

Now I am confused

so the k04-001 is fitted to the Audi S3 (210 version), which is the same as the borg warner k04-001, which is the slightly uprated version of a k03s, which directly bolts onto the k03s manifold?

or is the k04-001 which fits to the 210 Audi S3 different to the one that fits onto the k03 manifold?

 

[ibiza_95]

k04 001 fits the k03 manifold

k04 023 is the likes of a leon TT S3 225 version etc and some 210 models and requires manifold downpipe lines etc to fit

 

[jamiebennett81]

k04 001 fits the k03 manifold

k04 023 is the likes of a leon TT S3 225 version etc and some 210 models and requires manifold downpipe lines etc to fit

yes....so my point is, the earlier turbo fitted to the 210 audi S3 (k04-001) will fit the k03 manifold?

 

[jamiebennett81]

k04 001 fits the k03 manifold

k04 023 is the likes of a leon TT S3 225 version etc and some 210 models and requires manifold downpipe lines etc to fit

fair enough

 

[pj1985]

Not missing the point at all. Others will read this thread and think its different so worth getting all the details straight in here so we dont get another post asking.

The earlier turbo fitted to a 210bhp S3 is still a k04-023 which as we know is not direct fit inplace of a k03. From what I have heard the k04-001 was actually not fitted to any of the S3 and its all hearsay, not in the UK at least anyway. If you can find me an S3 with one on from the factory then Ill happily eat my words.

 

[jamiebennett81]

The earlier turbo fitted to a 210bhp S3 is still a k04-023 which as we know is not direct fit inplace of a k03. From what I have heard the k04-001 was actually not fitted to any of the S3 and its all hearsay, not in the UK at least anyway. If you can find me an S3 with one on from the factory then Ill happily eat my words.

oh, its all hearsay...the plot thickens

 

[Damoegan]

As far as I know the k04-001 was replaced with the k03-052(s). So the k04-001 is a early version of the k03s.

 

[pj1985]

As far as I know the k04-001 was replaced with the k03-052(s). So the k04-001 is a early version of the k03s.

Think this is right. Effectively the k03s superceeded (sp) the k04-001 but I think that the k04-001 was still in manufature for a while after it the k03s came out and possibly still is now but Im not sure.

 

[jamiebennett81]

Think this is right. Effectively the k03s superceeded (sp) the k04-001 but I think that the k04-001 was still in manufature for a while after it the k03s came out and possibly still is now but Im not sure.

why did it superceed it?

if the k04-001 is a slightly uprated spec turbo (from what I have read on Vortex) then why did they switch back to the k03s which is slightly smaller from my understanding?

 

[pj1985]

why did it superceed it?

if the k04-001 is a slightly uprated spec turbo (from what I have read on Vortex) then why did they switch back to the k03s which is slightly smaller from my understanding?

No idea. The k03s is a newer developed turbo.

 

[smiff]

Thanks for all of the help guys is it actually worth me fitting the turbo if its the k04-001 as im all ready running the k03s on my leon cupra all i actually need is a couple of gaskits and the 4bar fpr an im done for the bits and bobs got the injectors manifold oil and water lines thanks again