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Author Topic: Info on BorgWarner turbos K03/K03s/K04  (Read 17284 times)
Don®
1.8T Illuminatus
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« on: May 03, 2005, 09:20:35 PM »

Quoted

Quote
Dear Sir,
thank you for your interest in our products.
First of all, we don't produce any turbo that we call K03S. But I hope I can
answer your questions with the following explanations.

All the following turbos have the same installation dimensions and
thermodynamical performance. The differences are only in the actuator that
opens the turbine bypass valve:
K03-011 (5303 988 0011) 150 hp, 65 N actuator
K03-026 180 hp, 85 N actuator
K03-035 180 hp, 85 N actuator
K03-044 150 hp, 65 N actuator
K03-045 156 hp (Ibiza Cupra), 85 N actuator with 2 ports
K03-049 150 hp (Sharan/Alhambra), 65 N actuator
The 180 hp versions have an actuator with a higher opening force due to the
higher exhaust gas pressure (which is a consequence of the higher boost
pressure). Otherwise the valve would be pushed open by the exhaust gas
pressure.

The following turbos are a further development (since 2000) and have an
improved and slightly larger compressor while using the same turbine (still
with the same installation dimensions):
K03-052 180 hp, 85 N actuator
K03-053 150 hp, 85 N actuator
K03-058 150 hp/180 hp, 85 N actuator

Consequentially, putting a 180 hp turbo on a 150 hp engine will not bring
about any change in performance, but putting on a K03-052/053/058 instead of
the older versions will bring a slight improvement in engine efficiency.
Additionally, with re-mapping the ECU you can achieve about 215 hp without
danger of overspeeding the turbo. With the older turbos, 195 hp is the
limit.

With the K04 that's also commonly used (5304 950 0001) the power output
should not be more than 220 hp. That means, changing a K03-052/053/058
against a K04 does not make a lot of sense.

I hope that these details answer your questions. If you need more info, one
of our service distributors will be glad to help you. Their addresses are on
our website http://www.turbodriven.com.

Mit freundlichen Grüßen/Best regards,
BorgWarner Turbo Systems GmbH
Sales IDS - Technical Support
Christian Seibert
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1.8tizzle
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« Reply #1 on: May 03, 2005, 10:11:55 PM »

wow that is hilarious.... i love it Don. :thumbup1:
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Matt
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« Reply #2 on: May 03, 2005, 10:39:04 PM »

noice :bowrofl:
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kilmer420
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« Reply #3 on: May 04, 2005, 01:22:10 PM »

Beat me to it Don,  I saw that post but could not find it!
Good stuff!
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slickfisher
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« Reply #4 on: May 09, 2005, 01:31:44 AM »

Yes, I remember that one.
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AllofurVWRbelong2me
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« Reply #5 on: February 21, 2006, 05:09:52 PM »

Thats funny, I remeber all the responses of people that bought a k04 when tizzle posted that. :bowrofl:
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Rac.
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« Reply #6 on: October 29, 2006, 11:21:15 AM »

good read

even they say going from 03/03s to an 04 is pointless Smile

nuggets beware
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bdth3384
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« Reply #7 on: December 24, 2006, 04:14:28 AM »

Is there a way to get my Stock 1.8t boosting more? and not to much to hurt it
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