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Was stupid mk1 question. -Now Engine Building
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The surest way to more power is more displacement. Shortening the =
stroke would be counter-productive since that would decrease =
displacement.=20
The only benefit of shortening the stroke of an engine is a decrease in =
piston speed. This may be a factor if you have changed cams, ports, =
valve springs, etc. to the point where your rpm's are limited only by =
excessive piston speed. Believe me, none of our VW's engines fall into =
this category.
Bore it AND stroke it, that way you have more low end power AND more =
top end power. That's the beauty of a larger engine.
Larry
sandiego16v
The object of my build is an engine that performs well on both ends of =
the
tach. I can dream right? As I understand it, if I shorten the stroke a
little, and increase the bore a little, it will increase top end =
performance
without a significant loss of compression. If you build an engine with =
less
low end torque, will the Audi 4k manifold- believed to help low end =
torque-
work to compensate for the low end loss, or will it conspire against =
the
engine, and just rob too much top end power? I will be starting with =
the RD
block, solid lifter head, and G grind, buckled to the FF (probably) =
gearbox.
Jeff
On the eternal search for the perfect engine.
----- Original Message -----
From: "ATS - Patrick Bureau" <txrocco@sbcglobal.net>
To: "Jeff Southerland" <jsoutherland16@attbi.com>; =
<scirocco-l@scirocco.org>
Sent: Saturday, February 15, 2003 9:21 AM
Subject: RE: Was stupid mk1 question. -Now Engine Building
> long stroke =3D torque =3D hp to the wheels
> short stroke =3D low troque =3D whining little honda like engine
>
>
> ATS - Patrick Bureau - txrocco@sbcglobal.net
>
>
> =3D>-----Original Message-----
> =3D>From: scirocco-l-admin@scirocco.org
> =3D>[mailto:scirocco-l-admin@scirocco.org]On Behalf Of Jeff =
Southerland
> =3D>Sent: Friday, February 14, 2003 11:05 PM
> =3D>To: scirocco-l@scirocco.org
> =3D>Subject: Re: Was stupid mk1 question. -Now Engine Building
> =3D>
> =3D>
> =3D>The trick to getting that high gloss finish is to take the pic =
before
the
> =3D>CRC engine degreaser dries! That engines days are numbered =
anyway, I got
a
> =3D>RD from my GTi to fill the position, - if I ever get it built.
> =3D>
> =3D>Which leads me to a question about engines. I want to build this
> =3D>RD 1.8 with
> =3D>a shorter stroke, and use an Audi 4k or Fox manifold. Will this =
combo
work
> =3D>with each other to even out the power range, or will they work
> =3D>against each
> =3D>other?
> =3D>Jeff
> =3D>
> =3D>
> =3D>----- Original Message -----
> =3D>From: "Rabbit16v" <Rabbit16v@attbi.com>
> =3D>To: "Scirocco List" <scirocco-l@scirocco.org>
> =3D>Sent: Friday, February 14, 2003 9:58 PM
> =3D>Subject: Re: stupid mk1 question.
> =3D>
> =3D>
> =3D>> That's some HIGH GLOSS black paint you used on your block!! =
:) Is
that
> =3D>an
> =3D>> oil-based paint!!
> =3D>>
> =3D>> Dave
> =3D>> ----- Original Message -----
> =3D>> From: "Jeff Southerland" <jsoutherland16@attbi.com>
> =3D>> To: <scirocco-l@scirocco.org>
> =3D>> Sent: Friday, February 14, 2003 10:06 AM
> =3D>> Subject: Re: stupid mk1 question.
> =3D>>
> =3D>>
> =3D>> >
> =3D>> >
> =3D>> >
> =3D>> >
> =3D>> > My 79 has a 1.6.
> =3D>> > =
http://home.attbi.com/~jsoutherland16/wsb/media/115630/site1041.JPG
> =3D>> > Engine code is under #3 spark plug.
> =3D>> > Jeff
> =3D>> > ----- Original Message -----
> =3D>> > > From: "Joe Doty" <Joe.Doty@lcnetwork.com>
> =3D>> > >To: "Scirocco List" <scirocco-l@scirocco.org>
> =3D>> > > Sent: Friday, February 14, 2003 12:52 PM
> =3D>> > > Subject: stupid mk1 question.
> =3D>> > >
> =3D>> > >
> =3D>> > > Does my '79 have a 1.6 or a 1.7?
> =3D>> > >
> =3D>> > > Joe Doty
> =3D>> > > IT/Development/mk1 noob
> =3D>> > > joe@lcnetwork.com
> =3D>> > >
> =3D>> > >
> =3D>> > > _______________________________________________
> =3D>> > > Scirocco-l mailing list
> =3D>> > > Scirocco-l@scirocco.org
> =3D>> > > http://neubayern.net/mailman/listinfo/scirocco-l
> =3D>> > >
> =3D>> >
> =3D>> >
> =3D>> > _______________________________________________
> =3D>> > Scirocco-l mailing list
> =3D>> > Scirocco-l@scirocco.org
> =3D>> > http://neubayern.net/mailman/listinfo/scirocco-l
> =3D>>
> =3D>>
> =3D>> _______________________________________________
> =3D>> Scirocco-l mailing list
> =3D>> Scirocco-l@scirocco.org
> =3D>> http://neubayern.net/mailman/listinfo/scirocco-l
> =3D>>
> =3D>
> =3D>
> =3D>
> =3D>_______________________________________________
> =3D>Scirocco-l mailing list
> =3D>Scirocco-l@scirocco.org
> =3D>http://neubayern.net/mailman/listinfo/scirocco-l
>
>
> _______________________________________________
> Scirocco-l mailing list
> Scirocco-l@scirocco.org
> http://neubayern.net/mailman/listinfo/scirocco-l
>
_______________________________________________
Scirocco-l mailing list
Scirocco-l@scirocco.org
http://neubayern.net/mailman/listinfo/scirocco-l
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<DIV><FONT face=3DArial size=3D2>The surest way to more power is more=20
displacement. Shortening the stroke would be counter-productive =
since that=20
would decrease displacement. </FONT></DIV>
<DIV><FONT face=3DArial size=3D2>The only benefit of shortening the =
stroke of an=20
engine is a decrease in piston speed. This may be a factor if you =
have=20
changed cams, ports, valve springs, etc. to the point where your rpm's =
are=20
limited only by excessive piston speed. Believe me, none of our =
VW's=20
engines fall into this category.</FONT></DIV>
<DIV><FONT face=3DArial size=3D2> Bore it AND stroke it, that way =
you have more=20
low end power AND more top end power. That's the beauty of a =
larger=20
engine.</FONT></DIV>
<DIV> </DIV>
<DIV><FONT face=3DArial size=3D2>Larry</FONT></DIV>
<DIV><FONT face=3DArial size=3D2>sandiego16v</FONT></DIV>
<BLOCKQUOTE=20
style=3D"BORDER-LEFT: #000000 2px solid; MARGIN-LEFT: 5px; MARGIN-RIGHT: =
0px; PADDING-LEFT: 5px; PADDING-RIGHT: 0px">
<DIV> </DIV>The object of my build is an engine that performs =
well on=20
both ends of the<BR>tach. I can dream right? As I understand it, if I =
shorten=20
the stroke a<BR>little, and increase the bore a little, it will =
increase top=20
end performance<BR>without a significant loss of compression. If you =
build an=20
engine with less<BR>low end torque, will the Audi 4k manifold- =
believed to=20
help low end torque-<BR>work to compensate for the low end loss, or =
will it=20
conspire against the<BR>engine, and just rob too much top end power? I =
will be=20
starting with the RD<BR>block, solid lifter head, and G grind, buckled =
to the=20
FF (probably) gearbox.<BR>Jeff<BR>On the eternal search for the =
perfect=20
engine.<BR><BR>----- Original Message -----<BR>From: "ATS - Patrick =
Bureau"=20
<<A=20
=
href=3D"mailto:txrocco@sbcglobal.net";>txrocco@sbcglobal.net</A>><BR>To=
: "Jeff=20
Southerland" <<A=20
=
href=3D"mailto:jsoutherland16@attbi.com";>jsoutherland16@attbi.com</A>>=
;=20
<<A=20
=
href=3D"mailto:scirocco-l@scirocco.org";>scirocco-l@scirocco.org</A>><B=
R>Sent:=20
Saturday, February 15, 2003 9:21 AM<BR>Subject: RE: Was stupid mk1 =
question.=20
-Now Engine Building<BR><BR><BR>> long stroke =3D torque =3D hp to =
the=20
wheels<BR>> short stroke =3D low troque =3D whining little honda =
like=20
engine<BR>><BR>><BR>> ATS - Patrick Bureau - <A=20
=
href=3D"mailto:txrocco@sbcglobal.net";>txrocco@sbcglobal.net</A><BR>><B=
R>><BR>>=20
=3D>-----Original Message-----<BR>> =3D>From: <A=20
=
href=3D"mailto:scirocco-l-admin@scirocco.org";>scirocco-l-admin@scirocco.o=
rg</A><BR>>=20
=3D>[<A=20
=
href=3D"mailto:scirocco-l-admin@scirocco.org";>mailto:scirocco-l-admin@sci=
rocco.org</A>]On=20
Behalf Of Jeff Southerland<BR>> =3D>Sent: Friday, February 14, =
2003 11:05=20
PM<BR>> =3D>To: <A=20
=
href=3D"mailto:scirocco-l@scirocco.org";>scirocco-l@scirocco.org</A><BR>&g=
t;=20
=3D>Subject: Re: Was stupid mk1 question. -Now Engine =
Building<BR>>=20
=3D><BR>> =3D><BR>> =3D>The trick to getting that high =
gloss finish=20
is to take the pic before<BR>the<BR>> =3D>CRC engine degreaser =
dries! That=20
engines days are numbered anyway, I got<BR>a<BR>> =3D>RD from my =
GTi to=20
fill the position, - if I ever get it built.<BR>> =3D><BR>> =
=3D>Which=20
leads me to a question about engines. I want to build this<BR>> =
=3D>RD 1.8=20
with<BR>> =3D>a shorter stroke, and use an Audi 4k or Fox =
manifold. Will=20
this combo<BR>work<BR>> =3D>with each other to even out the =
power range,=20
or will they work<BR>> =3D>against each<BR>> =
=3D>other?<BR>>=20
=3D>Jeff<BR>> =3D><BR>> =3D><BR>> =3D>----- =
Original Message=20
-----<BR>> =3D>From: "Rabbit16v" <<A=20
=
href=3D"mailto:Rabbit16v@attbi.com";>Rabbit16v@attbi.com</A>><BR>> =
=3D>To:=20
"Scirocco List" <<A=20
=
href=3D"mailto:scirocco-l@scirocco.org";>scirocco-l@scirocco.org</A>><B=
R>>=20
=3D>Sent: Friday, February 14, 2003 9:58 PM<BR>> =3D>Subject: =
Re: stupid=20
mk1 question.<BR>> =3D><BR>> =3D><BR>> =3D>> =
That's some HIGH=20
GLOSS black paint you used on your block!! :) =
Is<BR>that<BR>>=20
=3D>an<BR>> =3D>> oil-based paint!!<BR>> =
=3D>><BR>>=20
=3D>> Dave<BR>> =3D>> ----- Original Message =
-----<BR>>=20
=3D>> From: "Jeff Southerland" <<A=20
=
href=3D"mailto:jsoutherland16@attbi.com";>jsoutherland16@attbi.com</A>>=
<BR>>=20
=3D>> To: <<A=20
=
href=3D"mailto:scirocco-l@scirocco.org";>scirocco-l@scirocco.org</A>><B=
R>>=20
=3D>> Sent: Friday, February 14, 2003 10:06 AM<BR>> =
=3D>> Subject:=20
Re: stupid mk1 question.<BR>> =3D>><BR>> =
=3D>><BR>> =3D>>=20
><BR>> =3D>> ><BR>> =3D>> ><BR>> =
=3D>>=20
><BR>> =3D>> > My 79 has a 1.6.<BR>> =
=3D>> > <A=20
=
href=3D"http://home.attbi.com/~jsoutherland16/wsb/media/115630/site1041.J=
PG">http://home.attbi.com/~jsoutherland16/wsb/media/115630/site1041.JPG</=
A><BR>>=20
=3D>> > Engine code is under #3 spark plug.<BR>> =
=3D>> >=20
Jeff<BR>> =3D>> > ----- Original Message =
-----<BR>>=20
=3D>> > > From: "Joe Doty" <<A=20
=
href=3D"mailto:Joe.Doty@lcnetwork.com";>Joe.Doty@lcnetwork.com</A>><BR>=
>=20
=3D>> > >To: "Scirocco List" <<A=20
=
href=3D"mailto:scirocco-l@scirocco.org";>scirocco-l@scirocco.org</A>><B=
R>>=20
=3D>> > > Sent: Friday, February 14, 2003 12:52 PM<BR>> =
=3D>>=20
> > Subject: stupid mk1 question.<BR>> =3D>> > =
><BR>>=20
=3D>> > ><BR>> =3D>> > > Does my '79 have a =
1.6 or a=20
1.7?<BR>> =3D>> > ><BR>> =3D>> > > Joe =
Doty<BR>>=20
=3D>> > > IT/Development/mk1 noob<BR>> =3D>> > =
> <A=20
href=3D"mailto:joe@lcnetwork.com";>joe@lcnetwork.com</A><BR>> =
=3D>> >=20
><BR>> =3D>> > ><BR>> =3D>> > >=20
_______________________________________________<BR>> =3D>> =
> >=20
Scirocco-l mailing list<BR>> =3D>> > > <A=20
=
href=3D"mailto:Scirocco-l@scirocco.org";>Scirocco-l@scirocco.org</A><BR>&g=
t;=20
=3D>> > > <A=20
=
href=3D"http://neubayern.net/mailman/listinfo/scirocco-l";>http://neubayer=
n.net/mailman/listinfo/scirocco-l</A><BR>>=20
=3D>> > ><BR>> =3D>> ><BR>> =3D>> =
><BR>>=20
=3D>> > =
_______________________________________________<BR>>=20
=3D>> > Scirocco-l mailing list<BR>> =3D>> > <A=20
=
href=3D"mailto:Scirocco-l@scirocco.org";>Scirocco-l@scirocco.org</A><BR>&g=
t;=20
=3D>> > <A=20
=
href=3D"http://neubayern.net/mailman/listinfo/scirocco-l";>http://neubayer=
n.net/mailman/listinfo/scirocco-l</A><BR>>=20
=3D>><BR>> =3D>><BR>> =3D>>=20
_______________________________________________<BR>> =3D>> =
Scirocco-l=20
mailing list<BR>> =3D>> <A=20
=
href=3D"mailto:Scirocco-l@scirocco.org";>Scirocco-l@scirocco.org</A><BR>&g=
t;=20
=3D>> <A=20
=
href=3D"http://neubayern.net/mailman/listinfo/scirocco-l";>http://neubayer=
n.net/mailman/listinfo/scirocco-l</A><BR>>=20
=3D>><BR>> =3D><BR>> =3D><BR>> =3D><BR>>=20
=3D>_______________________________________________<BR>> =
=3D>Scirocco-l=20
mailing list<BR>> =3D><A=20
=
href=3D"mailto:Scirocco-l@scirocco.org";>Scirocco-l@scirocco.org</A><BR>&g=
t;=20
=3D><A=20
=
href=3D"http://neubayern.net/mailman/listinfo/scirocco-l";>http://neubayer=
n.net/mailman/listinfo/scirocco-l</A><BR>><BR>><BR>>=20
_______________________________________________<BR>> Scirocco-l =
mailing=20
list<BR>> <A=20
=
href=3D"mailto:Scirocco-l@scirocco.org";>Scirocco-l@scirocco.org</A><BR>&g=
t; <A=20
=
href=3D"http://neubayern.net/mailman/listinfo/scirocco-l";>http://neubayer=
n.net/mailman/listinfo/scirocco-l</A><BR>><BR><BR><BR><BR>____________=
___________________________________<BR>Scirocco-l=20
mailing list<BR><A=20
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href=3D"mailto:Scirocco-l@scirocco.org";>Scirocco-l@scirocco.org</A><BR><A=
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