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Author Topic: boost  (Read 6332 times)

Offline VW_rae

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boost
« on: September 22, 2009, 02:59:17 pm »
whats a safe amount of boost you can run on a turbod polo g40???the turbo i am using is a ko3s
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Offline Andy

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Re: boost
« Reply #1 on: September 22, 2009, 04:59:47 pm »
Standard ECU/MAP sensor is 1bar/15psi.
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Offline Yoof

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Re: boost
« Reply #2 on: September 22, 2009, 07:03:13 pm »
No such thing as a K03s either...

As Andy says the stock MAP sensor limits you to 15psi (200kPa) but with a bigger MAP sensor (250kPa) you can run up to 22psi.

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Offline lance

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Re: boost
« Reply #3 on: September 22, 2009, 10:15:18 pm »
k03 "s"     :D
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Offline hayesey

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Re: boost
« Reply #4 on: September 22, 2009, 10:24:26 pm »
Quote
No such thing as a K03s either...

well there is but it's just a k03 with a slightly stronger acuator spring in it as you know yoof.  the same turbine and compressor as a normal k03 and since you need to put an adjustable actuator on a turbo g40 for it to work properly, no different at all.

in order to be safe you need to have a decent ecu remap to suit the higher boost and a higher rated map sensor.  you can't fit the map sensor without a remap to suit.
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Offline PeteG40

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Re: boost
« Reply #5 on: September 23, 2009, 09:10:36 am »
i did hear that some k03s have a different roller bearing in so less resistance.... not sure if b/s tho
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Offline Yoof

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Re: boost
« Reply #6 on: September 23, 2009, 11:05:05 am »
Just to clarify- Borg Warner (who make the turbos) do not recognise a K03's' there's no such thing. The differance between a forum 'K03s' and a normal 'K03' lies in the actuator strength- which dictates the boost pressure the turbo can provide.

Pete- I'm sure that's crap, they're all solid bearing, never seen one with roller bearings, although I guess you could upgrade them...
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Offline PeteG40

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Re: boost
« Reply #7 on: September 23, 2009, 11:08:32 am »
so its just a spring then.... wooodeedooo lol
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Offline Tommo

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Re: boost
« Reply #8 on: September 23, 2009, 09:03:59 pm »
Ball bearings arent really much of an 'upgrade' for a turbo to be fair, they are more fragile and a little more complicated to lubricate. There is nothing wrong with journal bearings.
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Offline VW_rae

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Re: boost
« Reply #9 on: October 04, 2009, 03:11:30 pm »
at 1 bar of boost what sort of power should i expect lads???
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Offline paz46

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Re: boost
« Reply #10 on: October 04, 2009, 06:14:06 pm »
im not a expert on k03 turbo but i read this and it make me think they are more differences that jus the spring look at post 14 on the link

http://www.audiforums.com/forum/showthread.php?t=80968&page=2
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