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[TECH] Cis to CIS w/ Knock Box
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>From what I understand the stroke is a little longer and the dish in the piston is smaller than in the JH engine. These two combined equate the the higher compression. I could be wrong buts thats what was explained to me. Brian
Dan Bubb <jdbubb@ix.netcom.com> wrote:Just out of curiousity, where's the 10.8 CR coming from?
I was under the impression all 8V heads had the same combustion chamber
size, so the CR would stay the same when swapping heads on 8V engines.
so, what's up?
Dan
----- Original Message -----
From: "ATS - Patrick Bureau"
To: "Decker" ; "_Scirocco Mailing List"
Sent: Tuesday, May 06, 2003 2:26 PM
Subject: RE: [TECH] Cis to CIS w/ Knock Box
> 32' advance... wow!
>
> well I have the box and its now almost wired all in (need knock sensor)
why
> because 3a/jh combo reaches close to 10.8:1 compression and after 8 weeks
of
> working on this engine I do not want to have pings nor break downs...
(never
> will I do a 2L conversion on a vw again... next time I pay someone to do
> it.!)
>
>
> ATS - Patrick Bureau - txrocco@sbcglobal.net
>
>
> =>-----Original Message-----
> =>From: scirocco-l-admin@scirocco.org
> =>[mailto:scirocco-l-admin@scirocco.org]On Behalf Of Decker
> =>Sent: Tuesday, May 06, 2003 12:50 PM
> =>To: _Scirocco Mailing List
> =>Subject: Re: [TECH] Cis to CIS w/ Knock Box
> =>
> =>
> =>Hi Patrick;
> => Unless you are running some ungodly high compression ratio why
install
> =>the knock box.? By definition it is there to retard ignition
> =>advance and so
> =>to rob power. In my 79 Scirocco I'm running an Audi 1800 8V with 10 to 1
> =>compression, no knock sensor and it is truly happy with premium
> =>gas. Tuning
> =>specs are distributor with points, only mechanical advance ( no vacuum
> =>advance or retard ). Timing is set to 32 degrees total advance.
> =>Brian Decker
> =>----- Original Message -----
> =>From: "ATS - Patrick Bureau"
> =>To: "_Scirocco Mailing List"
> =>Sent: Tuesday, May 06, 2003 10:15 AM
> =>Subject: [TECH] Cis to CIS w/ Knock Box
> =>
> =>
> =>> Dumb question I am sure but just want to make sure of what I am
wiring.
> =>>
> =>> I understand the diagram to install the knock box, but what I need
> =>> confirmation on is the following
> =>>
> =>> For example, the current CIS system has ignition wire running
> =>(all 3) from
> =>> Hall sender to Ignition Module, the diagram indicates to wire the 3
hall
> =>> sender wires to the knock box, do I TAP into the lines or I remove the
> =>lines
> =>> from the ignition module and run them to the knock box.
> =>>
> =>> I am pretty sure I am supposed to "relocate them" but just
> =>wanted to make
> =>> sure. Thank you for the confirmation on this issue.
> =>>
> =>> PS: damn its hot in Dallas.. 85'F with 88% humidity... all week...
> =>>
> =>> ATS - Patrick Bureau - txrocco@sbcglobal.net
> =>>
> =>>
> =>> _______________________________________________
> =>> 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
>
>
> _______________________________________________
> Scirocco-l mailing list
> Scirocco-l@scirocco.org
> http://neubayern.net/mailman/listinfo/scirocco-l
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--0-1951171500-1052321245=:81751
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<DIV>From what I understand the stroke is a little longer and the dish in the piston is smaller than in the JH engine. These two combined equate the the higher compression.</DIV>
<DIV> </DIV>
<DIV>I could be wrong buts thats what was explained to me.</DIV>
<DIV> </DIV>
<DIV>Brian<BR><BR><B><I>Dan Bubb <jdbubb@ix.netcom.com></I></B> wrote:</DIV>
<BLOCKQUOTE style="PADDING-LEFT: 5px; MARGIN-LEFT: 5px; BORDER-LEFT: #1010ff 2px solid">Just out of curiousity, where's the 10.8 CR coming from?<BR>I was under the impression all 8V heads had the same combustion chamber<BR>size, so the CR would stay the same when swapping heads on 8V engines.<BR>so, what's up?<BR>Dan<BR><BR><BR>----- Original Message -----<BR>From: "ATS - Patrick Bureau" <TXROCCO@SBCGLOBAL.NET><BR>To: "Decker" <BOISFORT@MYHOME.NET>; "_Scirocco Mailing List"<BR><SCIROCCO-L@SCIROCCO.ORG><BR>Sent: Tuesday, May 06, 2003 2:26 PM<BR>Subject: RE: [TECH] Cis to CIS w/ Knock Box<BR><BR><BR>> 32' advance... wow!<BR>><BR>> well I have the box and its now almost wired all in (need knock sensor)<BR>why<BR>> because 3a/jh combo reaches close to 10.8:1 compression and after 8 weeks<BR>of<BR>> working on this engine I do not want to have pings nor break downs...<BR>(never<BR>> will I do a 2L conversion on a vw again... next time I pay someone to do<BR>> it.!)<BR>><BR>><BR>> ATS - Patrick Bureau - txrocco@sbcglobal.net<BR>><BR>><BR>> =>-----Original Message-----<BR>> =>From: scirocco-l-admin@scirocco.org<BR>> =>[mailto:scirocco-l-admin@scirocco.org]On Behalf Of Decker<BR>> =>Sent: Tuesday, May 06, 2003 12:50 PM<BR>> =>To: _Scirocco Mailing List<BR>> =>Subject: Re: [TECH] Cis to CIS w/ Knock Box<BR>> =><BR>> =><BR>> =>Hi Patrick;<BR>> => Unless you are running some ungodly high compression ratio why<BR>install<BR>> =>the knock box.? By definition it is there to retard ignition<BR>> =>advance and so<BR>> =>to rob power. In my 79 Scirocco I'm running an Audi 1800 8V with 10 to 1<BR>> =>compression, no knock sensor and it is truly happy with premium<BR>> =>gas. Tuning<BR>> =>specs are distributor with points, only mechanical advance ( no vacuum<BR>> =>advance or retard ). Timing is set to 32 degrees total advance.<BR>> =>Brian Decker<BR>> =>----- Original Message -----<BR>> =>From: "ATS - Patrick Bureau" <TXROCCO@SBCGLOBAL.NET><BR>> =>To: "_Scirocco Mailing List" <SCIROCCO-L@SCIROCCO.ORG><BR>> =>Sent: Tuesday, May 06, 2003 10:15 AM<BR>> =>Subject: [TECH] Cis to CIS w/ Knock Box<BR>> =><BR>> =><BR>> =>> Dumb question I am sure but just want to make sure of what I am<BR>wiring.<BR>> =>><BR>> =>> I understand the diagram to install the knock box, but what I need<BR>> =>> confirmation on is the following<BR>> =>><BR>> =>> For example, the current CIS system has ignition wire running<BR>> =>(all 3) from<BR>> =>> Hall sender to Ignition Module, the diagram indicates to wire the 3<BR>hall<BR>> =>> sender wires to the knock box, do I TAP into the lines or I remove the<BR>> =>lines<BR>> =>> from the ignition module and run them to the knock box.<BR>> =>><BR>> =>> I am pretty sure I am supposed to "relocate them" but just<BR>> =>wanted to make<BR>> =>> sure. Thank you for the confirmation on this issue.<BR>> =>><BR>> =>> PS: damn its hot in Dallas.. 85'F with 88% humidity... all week...<BR>> =>><BR>> =>> ATS - Patrick Bureau - txrocco@sbcglobal.net<BR>> =>><BR>> =>><BR>> =>> _______________________________________________<BR>> =>> Scirocco-l mailing list<BR>> =>> Scirocco-l@scirocco.org<BR>> =>> http://neubayern.net/mailman/listinfo/scirocco-l<BR>> =><BR>> =><BR>> =>_______________________________________________<BR>> =>Scirocco-l mailing list<BR>> =>Scirocco-l@scirocco.org<BR>> =>http://neubayern.net/mailman/listinfo/scirocco-l<BR>><BR>><BR>> _______________________________________________<BR>> Scirocco-l mailing list<BR>> Scirocco-l@scirocco.org<BR>> http://neubayern.net/mailman/listinfo/scirocco-l<BR><BR><BR>_______________________________________________<BR>Scirocco-l mailing list<BR>Scirocco-l@scirocco.org<BR>http://neubayern.net/mailman/listinfo/scirocco-l</BLOCKQUOTE>
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