Author Topic: k03 / k04 wheel size list  (Read 21978 times)

Offline jamie16v

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k03 / k04 wheel size list
« on: 16 October 2011, 20:25 »
as above really, anybody know the size of both wheels on the k04-023?..
could we get a list going? i.e list stolen from rich`s thread for k03 onwards..
Ko3 - 97-2000
COMPRESSOR WHEEL
Inducer: 33.6mm
Exducer: 46mm
Tip height: 3.7mm

TURBINE WHEEL
Inducer: 45mm
Exducer: 38mm
Tip height: 6.8mm
Blades: 11

Ko3S - 01+
COMPRESSOR WHEEL
Inducer: 38mm
Exducer: 51mm
Tip height: 4.4mm

TURBINE WHEEL
Inducer: 45mm
Exducer: 38mm
Tip height: 6.8mm
Blades: 11

Ko4-015
COMPRESSOR WHEEL
Inducer: 35mm
Exducer: 50mm
Tip height: 3.7mm

TURBINE WHEEL
Inducer: 50mm
Exducer: 42mm
Tip height: 6.4mm
Blades: 11


k04-023

compressor wheel
inducer: 42mm
exducer: 56mm


turbine wheel
inducer: 42mm
exducer: 55mm

Ko4-001

COMPRESSOR WHEEL

Inducer: 35mm
Exducer: 50mm
Tip height: 3.7mm

TURBINE WHEEL

Inducer: 50mm
Exducer: 42mm
Tip height: 6.4mm
Blades: 11



« Last Edit: 17 November 2011, 21:53 by jamie16v »
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Offline Dave_IOW

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Re: k04-023 turbine and compressor size
« Reply #1 on: 17 October 2011, 10:25 »
Found this mate, ill update it when I get home bud.

Haven't you bought one already? Get the vernier out :grin:
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Offline jamie16v

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Re: k04-023 turbine and compressor size
« Reply #2 on: 17 October 2011, 10:51 »
Found this mate, ill update it when I get home bud.

Haven't you bought one already? Get the vernier out :grin:
still waiting for it to be rammed though my letterbox mate.  :tongue:
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Offline jamie16v

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Re: k04-023 turbine and compressor size
« Reply #3 on: 17 October 2011, 15:56 »
Found this mate, ill update it when I get home bud.

Haven't you bought one already? Get the vernier out :grin:
come on, update us then dave  :smiley:
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Offline Dave_IOW

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Re: k04-023 turbine and compressor size
« Reply #4 on: 17 October 2011, 17:17 »
Found this mate, ill update it when I get home bud.

Haven't you bought one already? Get the vernier out :grin:
come on, update us then dave  :smiley:

Thought i had it, but wrong measurements to the ones you want  :sad:  :embarassed:




Ill keep looking..
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Offline Dave_IOW

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Re: k04-023 turbine and compressor size
« Reply #5 on: 17 October 2011, 17:21 »
K04 - 023

COMPRESSOR WHEEL
Inducer: 42mm
Exducer: 56mm
Tip height: ?.?mm
Project: Mk2 20vT trackslag
Daily: Mk2 GTI typ19

Offline jamie16v

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Re: k04-023 turbine and compressor size
« Reply #6 on: 17 October 2011, 17:56 »
cheapest way possible probably is to bolt the k04-023 housing and compressor wheel to the k03 and us the k04 tip and associated hoses..
a route i thought about, but thought again about.
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Offline Dave_IOW

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Re: k04-023 turbine and compressor size
« Reply #7 on: 17 October 2011, 17:58 »
is their an exploded diagram of the borg warner k series turbos?

as all this inducer exducer, hot side, cold side, i'm finding abit confusing.

I just want to build a powerful turbo the cheapest way possible!

k03 shell with k04-023 coldside, but what about the hot?

it's all confusing to me

http://www.youtube.com/watch?v=vGhlgphrBxA&feature=related

In your example you would have your k03 turbine wheel (in exhaust housing (hot side)), as normal, spinning at X rpm as the exhaust gas goes past it.

Putting on a cold side from a k04-023, would mean the shaft from Hot side to cold side, would now be spinning a larger compreesor wheel (compressor housing(cold side)) thus pulling in more air, to result in a bigger bang.

Bigger wheel = more draw, but higher spool times which = lag.

Basics of it anyway
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Offline jamie16v

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Re: k04-023 turbine and compressor size
« Reply #8 on: 17 October 2011, 20:13 »
as above really, anybody know the size of both wheels on the k04-023?..
could we get a list going? i.e list stolen from rich`s thread for k03 onwards..
Ko3 - 97-2000
COMPRESSOR WHEEL
Inducer: 33.6mm
Exducer: 46mm
Tip height: 3.7mm

TURBINE WHEEL
Inducer: 45mm
Exducer: 38mm
Tip height: 6.8mm
Blades: 11

Ko3S - 01+
COMPRESSOR WHEEL
Inducer: 38mm
Exducer: 51mm
Tip height: 4.4mm

TURBINE WHEEL
Inducer: 45mm
Exducer: 38mm
Tip height: 6.8mm
Blades: 11

Ko4-015
COMPRESSOR WHEEL
Inducer: 35mm
Exducer: 50mm
Tip height: 3.7mm

TURBINE WHEEL
Inducer: 50mm
Exducer: 42mm
Tip height: 6.4mm
Blades: 11


COMPRESSOR WHEEL
Inducer: 42mm
Exducer: 56mm
Tip height: ?.?mm
looking at the compressor wheels on the k03s and the -023 there seems to be onlya 4mm difference on the inducer part of the wheel, this is the part that sucks the air in from the TIP. which means that only 4mm diameter needs to be taken from that part of the housing. i am unsure what the inner cast of the cld side will look like at the mo so i`m a little unsure what metal will need removing altogether. as we are unsure of the size of the turbine wheel i am still unable to determine what is needed to be removed  from that housing. if i were to keep the k03s turbine (hybrid it) the turbo would spool very fast.  from what i have read, this is good and also bad. the faster the turbine spins the compressor, the more boost we can achieve, BUT, the smaller the turbine (hole the exhaust gasses flow through) the more restricted our top end power.. i am unsure exaclty how restricted this would actually be, i could see there being problems with EGT`s?? perhaps nick would have some sort of a clue???  :tongue:
« Last Edit: 17 October 2011, 20:46 by jamie16v »
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Offline jamie16v

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Re: k04-023 turbine and compressor size
« Reply #9 on: 17 October 2011, 20:33 »
basically, you need the base turbo of your choice, i.e k03s or k04-001, then your bigger turbo you want to hybrid with like the k04-023.
you`ll also need a rebuild kit, preferably with 360 degree upgrade bearing.
then its a case of mating the hotside of your base turbo of choice to the cold side of your bigger turbo.
the smaller the hotside, the faster it will spin the cold side. but the smaller the hotside the more restrictive it becomes.
when it comes to mating the new turbo you could either keep the new housing for the build (this would mean you would need the TIP and associated boost hoses from the doner turbo) or you can machine out the housing of the base turbo, this is the route i would like to go but means finding someone or a way of enlarging the housings port.. i was wondering if a brake caliper honing tool would be man enough for the job.
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