[Biturbos4] Replacement turbos - buyin A6 2.7T with blown turbos

[b5quattro at shaw.ca]

Just to clarify, they are nearly identical from the outside, the differences are all internal.

Quincy

----- Original Message -----
From: David Pramanik <dap128 at hotmail.com>
Date: Tuesday, February 3, 2004 2:02 pm
Subject: Re: [Biturbos4] Replacement turbos - buyin A6 2.7T with blown turbos

> K04s are (slightly) larger than the stock K03s.  They don't spool 
> up faster,
> but the size difference is pretty small so the increase in lag is 
> probablyless than 500 rpm.  Peak torque will be higher with a K04 
> due to higher
> boost/more airflow, but it will be delayed slightly due to the small
> increase in lag.
> 
> -Dave Pramanik
> 
> 
> ----- Original Message ----- 
> From: "Michael Benno" <mbenno at yahoo.com>
> To: "David Lau" <toomanycars at mac.com>; "robert weinberg"
> <centaurus3200 at yahoo.com>
> Cc: <Biturbos4 at audifans.com>
> Sent: Tuesday, February 03, 2004 12:43 PM
> Subject: Re: [Biturbos4] Replacement turbos - buyin A6 2.7T with blown
> turbos
> 
> 
> > Your points are very good. The list is not a proper maket 
> representation.>
> > However, regarding your comments on the spool up time of the K04 vs.
> K04...Most people (on Audiworld) who have done the conversion to 
> K04 claim
> much faster spool up times. I can't say much about the torque but 
> mathmaticswould lead me to believe that torque is directly related 
> to boost, so that
> must be higher too. To be honest I really don't know the mechanical
> differences between the two.
> >
> > Anyone care to enlighten me?
> >
> > Mike Benno
> > a6 2.7t MTM1
> >
> >
> > David Lau <toomanycars at mac.com> wrote:
> > Sounds like a plan to me, Robby, you may never go back to the SHO!
> >
> > But I do think the K03 problems are out of proportion on this 
> list. What
> > percentage of biturbo owners worldwide are on this list, maybe 
> 5%? and
> what,
> > 10% of us have had failures? Total guesses, you understand. And 
> we'reharder
> > on them than most, chipping and all, yet probably maintain them 
> bettertoo,
> > so that may wash. (How many average owners even THINK about that 
> cold,thick
> > oil squeezing through those tiny passages at startup?)
> >
> > I've heard the K03s were designed for torque, not feindish 
> horsepower> anyway. Being small, they spool quickly, and give full 
> rated (stock)
> torque
> > at only 1800rpm. High rpm, sure, they run out of cfm to maintain 
> high> boost...
> >
> > David
> > -- 
> >
> > some of you know i am lurking on this board
> > researching A6 2.7T as my potential next car (along
> > with the 540i 6 speed). well, what about buying an A6
> > 2.7T with blown turbos wholesale. either private party
> > or from a dealer that just wants to get rid of it.
> > then put a K04 upgrade on it and be happy?
> >
> > am i dreaming? what do you guys think?
> >
> >
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