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lookin for a cheap 8v hot cam

Subject: lookin for a cheap 8v hot cam
From: rfkellner@snet.net (Rick Kellner)
Date: Fri, 7 Feb 2003 17:15:26 -0500
In-reply-to: <002501c2ce42$172836b0$01000001@malin>
Patrick, quoting from Ravens book, cam chapter. 
"Cams designed for use with hydro lifters are different from those
designed for solid lifters.  The biggest difference with the hydro cams
is that the ramps start very early to preload the lifter so it will be
locked up by the time the flank of the cam comes around."
Rick K.

-----Original Message-----
From: scirocco-l-admin@scirocco.org
[mailto:scirocco-l-admin@scirocco.org] On Behalf Of Marc Scirocco Quebec
Sent: Thursday, February 06, 2003 7:45 PM
To: 'Patrick Bureau'; 'Robbie Cotner'
Cc: scirocco-l@scirocco.org
Subject: RE: lookin for a cheap 8v hot cam

Patrick, the cam of the head of an Audi 3A motor is a hydraulic cam. I
do
not have the specs, but, I do happen to have one lying around.
http://cgi.ebay.com/ebaymotors/ws/eBayISAPI.dll?ViewItem&item=1875234941

So for the sake of science, I went down in the basement, and measured
it.
Base circle is 34 mm, and lift is 43.91mm. Roughly 10 mm of lift, or
0.393"
which is just the same specs as measured on my stock hydraulic '88
Scirocco.
No gain to be had there.

More info on hydraulic camshafts:
http://cabrios.20m.com/tuning/camshaft.htm

Also requested for Robbie, unfortunately, Raven's book does not list
specs
for a VW stock JH grind.

Cheers.

Marc
'83 Scirocco
'88 Scirocco Slegato

-----Message d'origine-----
De : scirocco-l-admin@scirocco.org
[mailto:scirocco-l-admin@scirocco.org]De la part de Patrick Bureau
Envoye : 6 fevrier, 2003 15:50
A : Marc_Scirocco_Quibec; 'Drew MacPherson'; 'Joe Doty'
Cc : scirocco-l@scirocco.org
Objet : RE: lookin for a cheap 8v hot cam


Hey Mark, do you know the details on the cam of
an 3a Audi Block ?
 I wanted to compare it to the G grind

Thank s if you have the info

Patrick
--- Marc_Scirocco_Quibec <marc_scirocco@sympatico.ca>
wrote:
> From Raven's book:
>
> VW N grind
> int opens 3 BTDC
> int closes 44.5 ABDC
> exh opens 46 BBDC
> exh closes 8 ATDC
> lift int 0.406
> lift exh 0.425
> dur int 228
> dur exh 234
> lobe center 110
> overlap 7.75
> advance -2.50
>
> VW G grind
> int opens 7 BTDC
> int closes 48 ABCD
> exh opens 45 BBDC
> exh closes 9 ATDC
> lift int 0.423
> lift exh 0.423
> dur int 235
> dur exh 234
> lobe center 109
> overlap 16.50
> advance -1.00
>
> Marc
> '83 Scirocco
> '88 Scirocco Slegato
>
> -----Message d'origine-----
> De : scirocco-l-admin@scirocco.org
> [mailto:scirocco-l-admin@scirocco.org]De la part de
> Drew MacPherson
> Envoyi : 6 fivrier, 2003 12:47
> @ : Joe Doty
> Cc : scirocco-l@scirocco.org
> Objet : RE: lookin for a cheap 8v hot cam
>
>
>
> For sure.  I don't have the profile handy, but I
> believe it's listed in
> Raven's watercooled performance book.  Better than
> stock JH cam, not as
> good as G grind.
>
> I had one in the JH that was in my 84 GLI - I then
> moved this engine over
> to my Scirocco when I first put it on the road.
> Coupled with a 4-2-1
> manifold it definitely wakes up middle and upper
> power, and improves
> mileage as well... :)  If you can get the cam cheap,
> and it's in good
> shape, you can't go wrong in the half hour or so it
> takes to install
> (well, you COULD go wrong and bust something... :) )
>
> Drew
>
>
> On Thu, 6 Feb 2003, Joe Doty wrote:
>
> > Really?? I didn't know that! I'm such an 8v noob!
> Dick, I might take you
> up on that!
> >
> > Joe Doty
> > IT/Development/8v Noob
> > joe@lcnetwork.com
> >
> > > -----Original Message-----
> > > From: Drew MacPherson
> [mailto:drew@scirocco.cs.uoguelph.ca]
> > > Sent: Thursday, February 06, 2003 9:15 AM
> > > To: Joe Doty
> > > Cc: SailingFC@aol.com; scirocco-l@scirocco.org
> > > Subject: RE: lookin for a cheap 8v hot cam
> > >
> > >
> > > A stock 1.5 or 1.6 should have an N grind cam -
> a noticeable improvement
> > > over a stock JH cam, provided you have already
> done the exhaust manifold
> > > upgrade.  If the car is still running the stock
> toilet bowl exhaust
> > > manifold start there... :)
> > >
> > > Drew
> > >
> > > On Thu, 6 Feb 2003, Joe Doty wrote:
> > >
> > > > Haha, I don't think he'd be too happy if I
> gave him a cam with worse
> > > profile than a stock JH :P
> > > >
> > > > Joe Doty
> > > > IT/Development
> > > > joe@lcnetwork.com
> > > >
> > > > -----Original Message-----
> > > > From: SailingFC@aol.com
> [mailto:SailingFC@aol.com]
> > > > Sent: Wednesday, February 05, 2003 10:24 PM
> > > > To: Joe Doty
> > > > Cc: scirocco-l@scirocco.org
> > > > Subject: Re: lookin for a cheap 8v hot cam
> > > >
> > > > I got my '78 4 speed and the 1457cc engine
> sitting in my garage.
> > > Everything was good when I pulled the engine in
> '85.  You can have it,
> if
> > > you come and pick it up.  That would be one heck
> of a gift, even if just
> > > for fun.  BTW, what cam was stock in this
> engine, anyway?
> > > >
> > > > -Dick-
> > > > 78 Scirocco
> > > > Original Owner
> > > > http://members.aol.com/sailingfc/
> > > >
> > > >
> > > > In a message dated 2/5/03 8:51:54 AM Pacific
> Standard Time,
> > > Joe.Doty@lcnetwork.com writes:
> > > >
> > > > 'It's my bro's birthday, and I gotta get him
> something!  Anybody got
> > > > maybe a used G-grind they wanna sell?
> > > >
> > > >
> _______________________________________________
> > > > 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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>
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References:
- lookin for a cheap 8v hot cam
  - From: marc_scirocco@sympatico.ca (Marc Scirocco Quebec)
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