Salve a tutti, visto che in altre discussioni ho avuto diverse richieste, metto queste info tecniche che avevo avuto qualche tempo fa dalla BorgWarner Turbo, la produttrice delle KKK.
A me erano servite molto x capire un po' le tipologie di turbine che monta il gruppo Audi/VW....
La questione era nata chiedendo sull'esistenza delle "famose" k03 Sport, che si sentono ogni tanto nominare in giro, soprattutto negli USA.
Questo è il testo di una mail, da cui si evince che una k04 "liscia" in molti casi non vale la pena di montarla....
E aggiungo che per la mia esperienza le varie k04 vendute negli USA come kit per i motori Golf IV e TT 180 (negli usa la A3 non esiste...) NON sono delle vere k04 ma degli ibridi con il lato "scarico" delle k03, in modo da montare senza troppe modifiche ai collettori. Avevo passato un pomeriggio dal distributore italiano delle KKK e quei tipi di k04 non esistono ufficialmente .....
Saluti a tutti !
E buone modifiche...
--------------------------------
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 www.turbodriven.com.
A me erano servite molto x capire un po' le tipologie di turbine che monta il gruppo Audi/VW....
La questione era nata chiedendo sull'esistenza delle "famose" k03 Sport, che si sentono ogni tanto nominare in giro, soprattutto negli USA.
Questo è il testo di una mail, da cui si evince che una k04 "liscia" in molti casi non vale la pena di montarla....
E aggiungo che per la mia esperienza le varie k04 vendute negli USA come kit per i motori Golf IV e TT 180 (negli usa la A3 non esiste...) NON sono delle vere k04 ma degli ibridi con il lato "scarico" delle k03, in modo da montare senza troppe modifiche ai collettori. Avevo passato un pomeriggio dal distributore italiano delle KKK e quei tipi di k04 non esistono ufficialmente .....
Saluti a tutti !
E buone modifiche...
--------------------------------
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 www.turbodriven.com.
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