cross-flow vs g60

[mr.utility at highstream.net (mr.utility@highstream.net)]

I think there is a real advantage to crossflow...  The air once in the 
cylinder does not have to turn 180 degrees in the cylinder, like it does with 
the earlier 8V engines...  I believe that is one reason why 16V have such good 
performace, esp with ITB type injection...

David


Quoting Patrick Bureau <txrocco@sbcglobal.net>:

> so there is no real advantage/disavantage between normal head (exhaust) at
> the rear and a xflow head (exhaust in the front.
> 
> I am asking because I would think that if I do get ITB's it would be better
> to get a xflow head to move the intake from the rear of the engine (sitting
> over the exhaust manifold ect.) to the front and grab more fresh air that
> way.
> 
> Does anyone know if I can use Sodium filled 7mm valves with an xflow without
> a problem ?
> and the next dumb question;
> is there a xflow head that is mechanical instead of hydraulic ?
> 
> 
> ATS - Patrick Bureau
> 
> 
> ->-----Original Message-----
> ->From: Drew MacPherson [mailto:drew@scirocco.cs.uoguelph.ca]
> ->Sent: Tuesday, November 04, 2003 6:59 AM
> ->To: Patrick Bureau
> ->Cc: Scirocco ML
> ->Subject: RE: cross-flow vs g60
> ->
> ->
> ->
> ->The JH and HT/RD heads are 40mm intake and 33mm exhaust.  Both are 8mm
> ->valve stems, the solid lifter valves being longer than the hydro
> ->version.
> ->
> ->I believe the ABA uses the same 40mm intake/33mm exhaust with 7mm stems,
> ->but don't quote me on it.
> ->
> ->Drew
> ->
> ->
> ->On Tue, 4 Nov 2003, Patrick Bureau wrote:
> ->
> ->> how about valve sizes?  I am considering this ITVB setup and I
> ->can use a JH
> ->> or a xflow head (depending if I want the flutes to be out back or in
> ->> front...but I have been trying to get intake/exhaust valve sizes, surely
> ->> someone has those numbers somewhere no ?
> ->>
> ->> ATS - Patrick Bureau
> ->>
> ->>
> ->> ->-----Original Message-----
> ->> ->From: scirocco-l-bounces@scirocco.org
> ->> ->[mailto:scirocco-l-bounces@scirocco.org]On Behalf Of Drew MacPherson
> ->> ->Sent: Tuesday, November 04, 2003 6:27 AM
> ->> ->To: Dan Smith
> ->> ->Cc: Scirocco ML
> ->> ->Subject: Re: cross-flow vs g60
> ->> ->
> ->> ->
> ->> ->On Mon, 3 Nov 2003, Dan Smith wrote:
> ->> ->
> ->> ->> can be had for next to nothing. RD heads are found on late
> ->80s GTIs and
> ->> ->> I think Jetta GLs. They're hydro, slightly harder to come
> ->by and it's a
> ->> ->
> ->> ->HT = 85 GTI/GLI, RD = 86,87 GTI/GLI (actually, Jettas came
> ->with 'em part
> ->> ->way through 88 as well)
> ->> ->
> ->> ->> good idea to run a knock sensor with it as compression is slightly
> ->> ->> higher. I'm sure others with more experience in this area
> ->will chime in
> ->> ->> as well.
> ->> ->
> ->> ->AFAIK the combustion chamber size is the same between the JH
> ->head and the
> ->> ->HT/RD heads.  The difference in the compression ratio is in
> ->the pistons.
> ->> ->
> ->> ->>
> ->> ->> Dan
> ->> ->
> ->> ->--
> ->> ->/=============================================\
> ->> ->|  84 Wolfsburg Edition TurboDiesel Scirocco  |
> ->> ->|    http://scirocco.cs.uoguelph.ca/gtd       |
> ->> ->\=============================================/
> ->> ->
> ->> ->
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> ->>
> ->>
> ->
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> ->|  84 Wolfsburg Edition TurboDiesel Scirocco  |
> ->|    http://scirocco.cs.uoguelph.ca/gtd       |
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> 
> 
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