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

["Scott F. Williams" <sfwilliams@home.com>]

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
> > >
> > > --
> > > Email LIST problems to: scirocco-l-probs@scirocco.org.
> > > To unsubscibe send "unsubscribe scirocco-l" in the message to
> > majordomo@scirocco.org
> >
> > --
> > Email LIST problems to: scirocco-l-probs@scirocco.org.
> > To unsubscibe send "unsubscribe scirocco-l" in the message to
> > majordomo@scirocco.org
> >
>
>
> --
> Email LIST problems to: scirocco-l-probs@scirocco.org.
> To unsubscibe send "unsubscribe scirocco-l" in the message to
> majordomo@scirocco.org
>
> --
> Email LIST problems to: scirocco-l-probs@scirocco.org.
> To unsubscibe send "unsubscribe scirocco-l" in the message to
> majordomo@scirocco.org
>


--
Email LIST problems to: scirocco-l-probs@scirocco.org.
To unsubscibe send "unsubscribe scirocco-l" in the message to majordomo@scirocco.org