RE: engine decision's... I have made up my mind.

["Brian Wagner" <scirocco_88_16v@hotmail.com>]

BP is essential to the life of the engine, without it you will get burnt 
valves and a top end.

Brian

88 16v
87 16v
86 8v (sold to neighbor)



>From: "Scott F. Williams" <sfwilliams@home.com>
>To: "Josh Hignight" <Josh.Hignight@phoenix.edu>
>CC: "scirocco List" <scirocco-l@scirocco.org>
>Subject: RE: engine decision's... I have made up my mind.
>Date: Mon, 6 Aug 2001 16:27:15 -0400
>
>Okay, you got me there. Let's say that no *4-stroke* motor needs
>backpressure. :^)
>______________________________
>Scott F. Williams
>Account Manager
>GENUiTY - Eastern Region
>100 Wall Street, 10th Floor
>New York, NY 10005
>Voice: 212.416.1745
>Cell: 917.648.2256
>Fax: 212.618.5160
>scott.williams@genuity.com
>
> > -----Original Message-----
> > From: owner-scirocco-l@scirocco.org
> > [mailto:owner-scirocco-l@scirocco.org]On Behalf Of Josh Hignight
> > Sent: Monday, August 06, 2001 4:15 PM
> > Cc: scirocco List
> > Subject: RE: engine decision's... I have made up my mind.
> >
> >
> > Umm, 2-strokes benefit from backpressure. Since most 2-stroke
> > engines don't
> > have mechanical valves, the back pressure helps to eliminate blow-by, 
>thus
> > increasing power because it maintains that there is a mixture to
> > burn in the
> > chamber (Hence the reason my r/c car barely runs when the pipe
> > falls off).
> >
> > But that's beside the point when it comes to dubs. Just thought
> > I'd mention
> > it.
> >
> > Joshua Hignight
> > Student Services/Technical Services
> > New Mexico Campus
> > (505) 821-4800
> >
> >  -----Original Message-----
> > From: 	Scott F. Williams [mailto:sfwilliams@home.com]
> > Sent:	Monday, August 06, 2001 1:11 PM
> > To:	jdbubb@ix.netcom.com; Neal Tovsen
> > Cc:	scirocco List
> > Subject:	RE: engine decision's... I have made up my mind.
> >
> > Let's kill the myth that backpressure helps an engine. NO ENGINE 
>BENEFITS
> > FROM RESTRICTION IN THE EXHAUST SYSTEM! The reason normally aspirated
> > engines may gain more torqe with a smaller diameter exhast, is because 
>the
> > higher velocity in the system creates a greater scavenging effect that 
>in
> > turn allows for cleaner combustion chambers, wich means more air-fuel
> > mixture per stroke, which means more power.
> >
> > Zero backpressure is always the ideal. Complete scavenging and
> > high exhaust
> > velocity are always the goal.
> > ______________________________
> > Scott F. Williams
> > Account Manager
> > GENUiTY - Eastern Region
> > 100 Wall Street, 10th Floor
> > New York, NY 10005
> > Voice: 212.416.1745
> > Cell: 917.648.2256
> > Fax: 212.618.5160
> > scott.williams@genuity.com
> >
> > > -----Original Message-----
> > > From: owner-scirocco-l@scirocco.org
> > > [mailto:owner-scirocco-l@scirocco.org]On Behalf Of Dan Bubb
> > > Sent: Monday, August 06, 2001 2:55 PM
> > > To: Neal Tovsen
> > > Cc: Patrick Bureau; scirocco List
> > > Subject: Re: engine decision's... I have made up my mind.
> > >
> > >
> > > somebody, please somebody explain this BS about lower backpressure
> > > causing loss of power!
> > >
> > > Neal Tovsen wrote:
> > > >
> > > > > 2.5" Pipping finishined with stainless Remus or Borla Muffler.(to 
>be
> > > > > decided)
> > > >
> > > > Did you mean 2.25"? 2.5" is pretty damn HUGE for a N/A 2.0L
> > engine. With
> > > > such a loss of backpressure, you might actually lose power.
> > Since you're
> > > > ordering the manifold/downpipe from TT, you could go with their 
>2.25"
> > > > exhaust system with a Borla for a sweet full setup.
> > > >
> > > > Looks like a screamin' setup otherwise. Go for it!
> > > >
> > > > Neal
> > > >
> > > > --
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>
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