K24 Turbocharger mods? Any thoughts?

Richard Tanimura Richard at Tanimuras.com
Fri Jan 31 17:05:15 EST 2003


I think the A/r ratio is on of the defining parameters of the turbo. I read
somewhere - Corky Bell's Maximum Boost I think it was - that it is important
to maitain the A/r ratio where 'A' is the aperature and 'r' is the radius to
the center of that aperature. Increasing the aperature will decrease the
exit velocity of the flow impinging on the rotor blades. Your buddy may not
get the result he is expecting.


-----Original Message-----
From: 200q20v-admin at audifans.com [mailto:200q20v-admin at audifans.com]On
Behalf Of Mihnea Cotet
Sent: den 31 januari 2003 16:18
To: JShadzi at aol.com; quattro at audifans.com; 200q20v at audifans.com;
QSHIPQ at aol.com
Subject: Re: K24 Turbocharger mods? Any thoughts?

Thanks to all for your thoughts!!! Actually my friend can afford an RS2 but
doesn't like the slower spool up and increased lag... That's stupid IMO but
oh well, I was just trying to see if it was worth the shot or not... I'll
let him know about your thoughts, and if he does it anyway I'll keep
everyone posted!



At 10:15 31/01/2003 -0500, JShadzi at aol.com wrote:
>Mihnea, I've never heard of hogging out the compressor inlet as an upgrade
>for a turbocharger, flowing the compressor housing, yes, but just trying
>to hog out the inlet won't make any difference IMO, definitely not enough
>to match it to the increased output of an RS2.  If your friend can't
>afford an RS2 or any uprated turbo for that matter, then he should leave
>the K24 unmolested and start saving up, unfortunately making a turbo flow
>more air usually isn't that easy, there are reasons why a turbo is
>completely redesigned for different hp applications.
>In a message dated 1/31/2003 5:10:22 AM Pacific Standard Time,
>porter_dog at hotmail.com writes:
>> >From: Mihnea Cotet <c_mihnea at yahoo.com>
>> >Reply-To: mik at info.fundp.ac.be
>> >To: quattro at audifans.com, 200q20v at audifans.com,
>> >qshipq at aol.com,jshadzi at aol.com
>> >Subject: K24 Turbocharger mods? Any thoughts?
>> >Date: Thu, 30 Jan 2003 06:54:31 -0800 (PST)
>> >
>> >Hi all!
>> >
>> >
>> >I just wanted to ask on behalf of a friend of mine if
>> >any of you had experience with a turbo's cold side
>> >inducer reboring... He is convinced this will allow
>> >his turbo to flow more air (it's a K24 BTW) thus
>> >eliminating the need to go with a bigger, laggier RS2
>> >turbo, although these beasts are a lot better than
>> >K24's IMHO and IME. What results can be expected? I
>> >agree that by reboring the inducer, this will allow
>> >more air to enter the compressor but will it be able
>> >to compress more air and with significantly better
>> >results than a bone stock turbo? Any thoughts? Scott
>> >J? Javad?
>> >
>> >
>> >Thanks for your answers anyway,
>> >
>> >Mihnea
>> >
>> >__________________________________________________

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