Date: Sun, 25 Aug 2002 15:03:57 +0100
Reply-To: Clive Smith <clive.harman-smith@NTLWORLD.COM>
Sender: Vanagon Mailing List <vanagon@gerry.vanagon.com>
From: Clive Smith <clive.harman-smith@NTLWORLD.COM>
Subject: Re: Eurocars 2.2 Engine - anyone have more info?
Content-Type: text/plain; charset="iso-8859-1"
> This seems iffy.......think about it. Higher compression = more heat. I
do
> not know about y'all, but from what i have seen the stock cooling system
is
> pretty darn marginal with the long hoses to the radiator and
> all............
Na, I don't really think so. For all we know, the higher pressures in the
cylinder at exhaust valve opening could actually improve scavenging, getting
the exhaust system standing wave working better at some engine speeds. Poor
scavenging of burnt gases raises overall cylinder heat much more than a
small increase in CR - if you're really worried then another trick is to
insulate the manifolds (headers?) which keeps gas temperature and hence
velocity high - I think it was Mathew Bulley did an article on this using
Tec-Tape.
My T25 Transporter 2.1 DJ engine runs circa 10.5:1 standard according to
the specs. and the cooling system seems perfectly able to cope.
I'd worry much more about getting fuel with a sufficient Octane rating.
Most people here back the ignition off 4 to 5 degrees and run plonk UK
Green, about 92/33 RON from memory
Of course the ideal solution for these big engines is to convert them to LPG
(100 RON) and keep a drop of Super 98 in the tank for exigencies, running
them at the original timing, performance and economy.
Clive
'88 Syncro Transporter
----- Original Message -----
From: "Vanagon man" <vgonman@MSN.COM>
To: <vanagon@GERRY.VANAGON.COM>
Sent: Sunday, August 25, 2002 12:47 AM
Subject: Re: Eurocars 2.2 Engine - anyone have more info?
> This seems iffy.......think about it. Higher compression = more heat. I
do
> not know about y'all, but from what i have seen the stock cooling system
is
> pretty darn marginal with the long hoses to the radiator and
> all............I wish that there was an upgraded water pump to pump more
> water, faster.that seems to be a serious drawback with a 10 to 1 ratio
> running pump gas.
>
> Adam P
> 81 Westy "The Brick "
> 70 Single Cab "Whitey"
> 74 Beetle "Ol Yeller"
> 73 Transporter (STILL at paint shop)
> 1988 Vanagon Wolfsburg
> 75 Campmobile "for sale'
> Used Vanagon Parts for sale (mostly aircooled)
> ----- Original Message -----
> From: "Chris S." <MrVolkswagen@HOTMAIL.COM>
> To: <vanagon@GERRY.VANAGON.COM>
> Sent: Saturday, August 24, 2002 6:27 PM
> Subject: Re: Eurocars 2.2 Engine - anyone have more info?
>
>
> > > 4) How "bolt in" is "bolt in?" Can I literally bolt it into my van?
> The
> > > injection system must change, so what's the deal?
> >
> > Externally the 2.2 and 2.1 cases are supposedly the same. The extra
> > displacement comes from slightly larger pistons and longer stroke. Fuel
> > injection system remains the same. If you run a 2.1L block in your
> > Vannawagon that will make it as bolt-in as you get. If you run a 1.9L
> then
> > look at http://www.oldvolkshome.com/19to21.htm. Not too shabby.
> >
> > This means if we got our hands on the larger pistons and cylinders and
the
> > stroker crank we could make a "big-bore" high-compression engine of our
> own.
> >
> > Chris S.
> > '85 Westy.
> >
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