Re: lowering compression ratio for turbo

["Dan Bubb" <jdbubb@ix.netcom.com>]

Wing:
OK! So, I know you're a fanatic about this (you're the only other name I
recognized on the Megasquirt GB list), but what the hell are you going to do
with FOUR of them???
Dan
Anybody up for lewd comments about the name of this Programmable FI
controller?


----- Original Message -----
From: Wing Gee <winggee@hotmail.com>
To: scirocco list <scirocco-l@scirocco.org>
Sent: Wednesday, November 21, 2001 6:13 PM
Subject: Re: lowering compression ratio for turbo


> just a few words.. Megasquirt ;-)
>
> Wing
> ----- Original Message -----
> From: "Jonas K." <jkarlsso@metabolex.com>
> To: "Jeff Toomasson" <jtoomasson@yahoo.com>; "scirocco list"
> <scirocco-l@scirocco.org>
> Sent: Wednesday, November 21, 2001 11:03 AM
> Subject: Re: lowering compression ratio for turbo
>
>
> > On 11/21/01 10:13 AM, "Jeff Toomasson" <jtoomasson@yahoo.com> wrote:
> >
> > > I have 9A 2.0 block (mileage to low to justify ripping
> > > it apart) sitting in my carport begging me to do
> > > something, anything with it. Need to sell my M3 for
> > > funds before I can afford to do anything though.
> >
> > Hmmm, yeah, must be a tough life... <grin>
> >
> > Anyway, There's always 8vturbo.com who (contrary to their domain-name)
> have
> > parts to turbo every watercooled A-series gas VW made.
> >
> > With the 9A motor you have other options. The 9A has 82.5mm bore, which
> > means that any High compression 82.5mm piston from a 2v/cyl VW or Audi
> will
> > fit. The compression will be drastically lowered due to the difference
in
> > head combustion chamber volumes between the 8v and 16v heads. The
> > compression will roughly be down at 7.5:1 Which works great, and you
still
> > have the squish area. The cars to look for are:
> > 87-up 5 cyl non-turbo Audi 5000/100 or 4000
> > 88-90 4 cyl Audi 80 2.0
> > 99-up VW 4cyl 2.0
> >
> > The rods should transfer right over too.
> >
> > You could also use a VW ABA 2.0l block, but you'd need the whole thing,
> and
> > transfer over the crank pulley, intermediate shaft, etc. This is what B.
> > Honnold is doing.
> >
> >
> > > I'm just still struggling with the dilemma of going
> > > with the "traditional" bolt-on's or do something
> > > that'll turn heads. The idea of having to feel my way
> > > through tuning a turbo'ed system makes me slightly
> > > uneasy - it's supposed to be a daily driver
> >
> > Well, you can do it yourself without too much trouble. If you can remove
> and
> > install a cylinder head, then you can do this. It would help to have a
> > backup car to drive during the install, though. With CIS fueling you're
> > going to be limited, and the cost of an aftermarket system is about
$1000.
> >
> > There's no reason why a turbo'ed car would not be a great daily driver.
> You
> > just have to resist the temptation to "just turn up the boost a little
> bit".
> > Once you start down that road, eventually you'll overboost and blow up
the
> > motor as you exceed your ability to pump fuel.
> >
> > Again, HTH,
> > Jonas
> >
> >
> >
> >
> > --
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> >
> >
>
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