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Re: Twin 16v Motor pics and site

To: "scirocco list" <scirocco-l@scirocco.org>
Subject: Re: Twin 16v Motor pics and site
From: "Rick Alexander" <rick@brubakerbox.com>
Date: Fri, 16 Nov 2001 15:49:51 -0500
References: <F228HdlQgdYXSVvR0Ws000021ed@hotmail.com> <014d01c16ed3$5444e2c0$0200a8c0@Al>
Sender: owner-scirocco-l@scirocco.org
No expert here but...

If the area of the master were doubled for twice as many slaves, it seems to
me that the pressure required would be the same as would the travel
distance. What do the hydraulic experts say? Is my understanding wrong?

Rick Alexander
http://www.brubakerbox.com
http://clubs.hemmings.com/hams/
http://clubs.hemmings.com/vwsrus/

----- Original Message -----
From: "Allyn" <amalventano1@home.com>
To: "Brian Wagner" <scirocco_88_16v@hotmail.com>; "scirocco list"
<scirocco-l@scirocco.org>
Sent: Friday, November 16, 2001 2:17 PM
Subject: Re: Twin 16v Motor pics and site


> Brian,
>     The master clinder works on a slightly different principal. It deals
> with an increase in pressure moreso than actually moving the caliper
> pistons. In this case, the calipers are moving only about 1/16th of an
inch.
> The design is only meant to raise pressure on the caliper pistons, and
> therefore force on the brake pads. There would be exactly the same
pressure
> on both pistons of the front/rear diagonal pair. If one caliper was
jammed,
> it wouldnt move, but would still have the same pressure (fluid) applied to
> it, where the non-jammed caliper of the pair would be the only one doing
the
> braking.
>     This same situation compared to a clutch setup, where one pressure
plate
> may have slightly stronger springs compared with the other, more fluid
would
> flow to the slave on the 'easier' tranny, causing it to disengage before
the
> other.
>     Also as you mentioned about the bore: yes, you would need 2x area of
> bore surface in the master to get full travel on both clutches, yet this
> creates another problem: you are now effectively hitting 2 clutches at
once,
> therefore the force you need to push clutch the pedal to the floor is now
2x
> (that would suck in traffic, heh).
> Al
>
> Allyn Malventano, ETC(SS), USN
> 87 Rieger GTO Scirocco 16v (daily driver, 170k, rocco #6) running - for
now
> 87 Jetta 8v Wolfsburg 2dr (daily driver, 260k, 0 rattles, original clutch,
> driveshafts, wheels :)
>
> ----- Original Message -----
> From: "Brian Wagner" <scirocco_88_16v@hotmail.com>
> To: <amalventano1@home.com>
> Sent: Friday, November 16, 2001 1:07 PM
> Subject: Re: Twin 16v Motor pics and site
>
>
> > I thought about it some more and in the example you sited each car would
> > need a 4 piston master cylinder for the brakes. The same princple would
> > apply for this, I believe the stroke and bore are the key. ( I know I
> added
> > bore now)
> >
> > Brian
> >
> > 87 16v
> > 86 8v (parts car)
> > 85 Wolfsburg (white coming to a garage near me soon)
> >
> >
> >
> > >From: "Allyn" <amalventano1@home.com>
> > >To: "Brian Wagner" <scirocco_88_16v@hotmail.com>
> > >Subject: Re: Twin 16v Motor pics and site
> > >Date: Fri, 16 Nov 2001 12:47:03 -0500
> > >
> > >the single piston on the master only moves x volume. this matches x
> volume
> > >in a single slave and moves the clutch lever. add another slave and you
> now
> > >have 2x volume to fill. Is there some other way that they work that i
am
> > >missing perhaps?
> > >Al
> > >
> > >----- Original Message -----
> > >From: "Brian Wagner" <scirocco_88_16v@hotmail.com>
> > >To: <amalventano1@home.com>
> > >Sent: Friday, November 16, 2001 12:42 PM
> > >Subject: Re: Twin 16v Motor pics and site
> > >
> > >
> > > > why would each move 1/2 distance, the volumetric pressure being
equal
> in
> > >the
> > > > system and all?
> > > >
> > > > Brian
> > > >
> > > > 87 16v
> > > > 86 8v (parts car)
> > > > 85 Wolfsburg (white coming to a garage near me soon)
> > > >
> > > >
> > > >
> > > > >From: "Allyn" <amalventano1@home.com>
> > > > >To: "Brian Wagner" <scirocco_88_16v@hotmail.com>,
> > ><koabi@lazyslacker.com>,
> > > > ><scirocco-l@scirocco.org>
> > > > >Subject: Re: Twin 16v Motor pics and site
> > > > >Date: Fri, 16 Nov 2001 12:38:51 -0500
> > > > >
> > > > >Yes, but each clutch would move 1/2 the length. Also, if one had
more
> > > > >resistance than the other, only the one with less resistance would
> > >move.
> > >We
> > > > >would need some kind of dual poston master.
> > > > >Al
> > > > >
> > > > >----- Original Message -----
> > > > >From: "Brian Wagner" <scirocco_88_16v@hotmail.com>
> > > > >To: <koabi@lazyslacker.com>; <scirocco-l@scirocco.org>
> > > > >Sent: Friday, November 16, 2001 12:33 PM
> > > > >Subject: RE: Twin 16v Motor pics and site
> > > > >
> > > > >
> > > > > > A single hydraulic clutch master could be used inconjunction
with
> 2
> > > > >slaves,
> > > > > > this would ensure equal clutch engagement to both t/m.
> > > > > >
> > > > > > Brian
> > > > > >
> > > > > > 87 16v
> > > > > > 86 8v (parts car)
> > > > > > 85 Wolfsburg (white coming to a garage near me soon)
> > > > > >
> > > > > >
> > > > > >
> > > > > > >From: "koabi brooks" <koabi@lazyslacker.com>
> > > > > > >To: scirocco-l@scirocco.org
> > > > > > >Subject: RE: Twin 16v Motor pics  and site
> > > > > > >Date: Fri, 16 Nov 2001 12:26:18 -0500
> > > > > > >
> > > > > > >
> > > > > > >im skeptical about the power.  two engines 275 HP per = 2*275
HP
> > > > > > >total?  that seems wrong to me.  Anyone care to explain?  I
> assumed
> > > > > > >this bad boy has two trannys with some super huge linkage.
> Someone
> > > > > > >mentioned something about a hydrolic clutch, which leads me to
> > >believe
> > > > > > >there would only be ONE tranny, but that makes no sense to me.
> > > > > > >
> > > > > > >englighten me please :)
> > > > > > >koabi
> > > > > > >
> > > > > > >-----Original Message-----
> > > > > > >From: owner-scirocco-l@scirocco.org
> > > > > > >[mailto:owner-scirocco-l@scirocco.org]On Behalf Of Dave Ewing
> > > > > > >Sent: Friday, November 16, 2001 9:08 AM
> > > > > > >To: Scirocco List
> > > > > > >Subject: Re: Twin 16v Motor pics and site
> > > > > > >
> > > > > > >
> > > > > > >The site did say that each motor was running at 275hp (2.0 or
> 2.1L
> > >16v
> > > > > > >on a serious shot of nitrous).  That would make it 550hp total.
> > >Sounds
> > > > > > >like it could be done!?  I'd love to take a ride in it!!!  I
> wonder
> > > > > > >what top speed would be?  I am sure it would only be restricted
> by
> > > > > > >gearing!
> > > > > > >
> > > > > > >Dave
> > > > > > >
> > > > > > >
> > > > > > >--
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> > > > > > >To unsubscibe send "unsubscribe scirocco-l" in the message to
> > > > > > >majordomo@scirocco.org
> > > > > > >
> > > > > >
> > > > > >
> > > > > >
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- RE: Twin 16v Motor pics and site
  - From: "Jason" <jason87vw@nac.net>
References:
- Re: Twin 16v Motor pics and site
  - From: "Allyn" <amalventano1@home.com>
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