Anybody tried this?

David duandcc_forums at cox.net
Wed Oct 13 17:18:18 EDT 2004


But that would requuire a MUCH more sophisticated fueling system that the stock CIS-e III, correct? That was my point, no a good idea with the engine otherwise stock. I realize you can do a high CR engine with good engine management, but is there one good enough for out engines that cvould safely boost a NG with lets say 8PSI of boost and a nice little K04 turbo? Wonder what kind of power that would make?

Dave
1987 CGT 2.3 (NG)
SE VA, USA
> 
> From: "Eric S" <scirocco at vintagewatercooleds.com>
> Date: 2004/10/13 Wed PM 05:09:37 EDT
> To: "David" <duandcc_forums at cox.net>
> CC: "Ed Kellock" <ekellock at gmail.com>,  quattro at audifans.com
> Subject: Re: Re: Anybody tried this?
> 
> 
> Actually David,
> 
> A modern, well controlled, low boost turbo on a high compression motor is
> quite fantastic.  With the advent of extremely advanced fuel injection and
> boost control devices, these high CR, low boost motors are quite the
> amazing daily drivers (all the original power down low, with a nice kick
> in the pants once the boost comes up).  Beauty of that design is, small
> turbo = near zero lag.
> 
> These setups are very very very popular with the Honda crowd...
> 
> -- 
> Eric
> www.vintagewatercooleds.com
> 
> 1981 Scirocco S (TDI swap project)
> 1988 Audi 90 Quattro
> 1990 Corrado TDI
> 1991 Cabriolet (2.0 crossflow 8v project)
> 
> David said:
> > Being that the NG is a high compression engine (10:1), I would shy away
> > from a bolt on turbo. But if you were to first put on a 20V head, that
> > would drop the CR to about 8.5:1 which would work pretty well for forced
> > induction...
> >
> > Dave
> > 1987 CGT 2.3 (NG)
> > SE Virginia, USA
> >
> >>
> >> From: Ed Kellock <ekellock at gmail.com>
> >> Date: 2004/10/13 Wed PM 03:28:41 EDT
> >> To: quattro at audifans.com
> >> Subject: Re: Anybody tried this?
> >>
> >> Actually, the engine in an '88 90q is the 2.3 liter NG engine which
> >> runs newer version of CIS.  Not sure how much this would change the
> >> equation but thought it might be relevant.
> >>
> >>
> >> On Wed, 13 Oct 2004 11:35:04 -0700, Bernard Littau
> >> <bernard.littau at gmail.com> wrote:
> >> > Hi Mitchell,
> >> >
> >> > I have not done this per se, but I've been involved with a few
> >> > upgrades such as this.
> >> >
> >> > Your engine is an Audi 2.2 liter Inline 5.
> >> >
> >> > You will likely want to do an engine swap, but you'll keep your A/C (I
> >> > can see why you want the A/C in SC, I visit there from Seattle from
> >> > time-to-time).
> >> >
> >> > The engine that gives you the most bang for the buck, and is a easy
> >> > mechanical swap is the Audi MC engine code turbo I5.  It's from the
> >> > 1986-1988 Audi 5000 turbo quattro.  It is mostly a direct replacement
> >> > for your current engine, with the turbo goodies, and some helpful
> >> > internal improvements such as oil sprayers on the pistons to help with
> >> > cooling.
> >> >
> >> > There are people who have bolted on the turbo goodies to the non-turbo
> >> > engine, so that is an option, but the MC swap will likely be more
> >> > durable.
> >> >
> >> > Now, in the old days, the hard part of such a swap was moving the
> >> > engine management system.  That involved stripping the wiring harness,
> >> > ECU and various sensors out of the donor car, and cobbling it together
> >> > into the recipient.  It was a daunting task.  Today, however, you
> >> > wouldn't want to do that.  Just replace the whole 1980 style fuel
> >> > injection system with a modern kit fuel injection system.
> >> >
> >> > Depending on how technical you are, megasquirt is a very good starting
> >> > point.  You do it youself, but it has a lot of support for DIY types.
> >> > There are many MC engines converted to Megasquirt, so you can get
> >> > advice and initial tuning maps from people.
> >> >
> >> > A more upscale unit would be Javad's EFI034; costs a bit more, is a
> >> > bit better.  There are commercial ones that cost even more than these
> >> > two, but they are not as sorted out for the Audi application.  I'd
> >> > stick with one of these.  I have a megasquirt, but not on my '88 5ktq.
> >> > I'm thinking of going EFI034 for my Audi.
> >> >
> >> > The modern EFI units avoid the need for much of the FI plumbing from
> >> > the original MC donor.  Between not needing the wiring and ECU and not
> >> > needing to fit the MC airbox and  other plumbing, its a huge win to go
> >> > with an EFI upgrade as well.  I don't think anyone would do a
> >> > wiring/ECU swap today.
> >> >
> >> > Take a look at:
> >> > http://www.80tq.com/
> >> > http://www.034efi.com/
> >> > http://www.bgsoflex.com/megasquirt.html
> >> >
> >> > BTW the stock MC engine has 162 HP.  A used one should cost around
> >> > $500.  With EFI and perhaps a stiffer wastegate spring, you can easily
> >> > get to 250 HP.  With a better turbo ($1500 ) and a better Intercooler
> >> > (not sure of the $$$, but likely $1000 or so) you can get above 300
> >> > HP.
> >> >
> >> > You'll be very sorry you asked this question and very sorry you looked
> >> > at those sites :-)
> >> >
> >> > Best,
> >> >
> >> > Bernard Littau
> >> > Woodinville, WA
> >> > '88 5ktq
> >> >
> >> > On Wed, 13 Oct 2004 10:01:12 -0500, Haskins Mitchell S TSgt 437
> >> >
> >> >
> >> > APS/TRP <mitchell.haskins at charleston.af.mil> wrote:
> >> > > I recently came into a bit of money, and would like to add some
> >> 'forced
> >> > > induction' to my 1988 Audi 90 Quattro.  As I live in South Carolina,
> >> an
> >> > > engine-swap is out of the question because I'd lose my A/C.  If
> >> anybody
> >> > > knows of a way to add a turbo (custom downpipe), or supercharger
> >> without
> >> > > removing my A/C, would you please share your story here with us?
> >> > >
> >> > > Thanks in advance!
> >> > >
> >> > > Mitchell S. Haskins
> >> > >
> >> > > 1988 Audi 90 Quattro
> >> > >
> >> > > _______________________________________________
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> >> > > quattro at audifans.com
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> >> > >
> >> >
> >> >
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