Mayf,
Your right it does look really cool, mine run out behind the front wheel
well and curve up slightly. The noise inside the driver's compartment is way
cool, not to loud and I can hear that baby sing when under power without
blowing my eardrums out. I don't know if I'm loosing speed and my crew
wanted to run them under the car but I nixed that cause they really do look
good,
Dave Haller #93 C/GAlt
----- Original Message -----
From: Lawrence E. & Cathy R. Mayfield <lemay@hiwaay.net>
To: John Beckett <landspeedracer@email.msn.com>; Keith Turk <kturk@ala.net>;
<land-speed@autox.team.net>
Sent: Friday, December 31, 1999 6:59 PM
Subject: Re: Exhaust exits
> Since you all seem to be discussing why I would do something, I figure
I'll
> chime in. Why would I do such a thing as put the exhaust pipes out the
side
> of the front spoiler? Well, first off, building the down pipes were a LOT
> simpler. That's number 1. Thrust is another consideration albeit small:
> each exhause is flowing about 450 cfm at 1300 degrees F so the speed
should
> be prety high at the exit of the pipe. Thrust = mass x velocity. Small
> maybe, helpful, maybe. Third is that the exhaust does not set up any kind
> of barrier. And four is that the turbulence at the wheel well is pretty
> high so it prolly doesn't matter anyway. Lots of turboed mustangs running
> them the same way and making 160 - 180 in the quarter mile. Once it
leaves
> the pipe it basically is the same speed as the car, and since they point
> backwards and upwards blends the exhaust with air flowing by.
Unfortunately
> it will add maybe 10 square inches to the frontal area with it's incumbent
> drag losses.
>
> And besides, it looks cool! When I get time, I'll post a pix on the web
> site, maybe this week end.
>
> mayf (holey air damn, and proud of it!!) :)
>
> At 03:55 PM 12/31/99 -0500, John Beckett wrote:
> >My thinking is probably the same as yours.
> >
> >JB
> >-----Original Message-----
> >From: Keith Turk <kturk@ala.net>
> >To: land-speed@autox.team.net <land-speed@autox.team.net>
> >Date: Sunday, December 26, 1999 9:24 PM
> >Subject: Exhaust exits
> >
> >
> >>I was up visiting Mayf here last week and he had finished the air Damn
on
> >>the Sunbeam... he has the Turbo's plumbed out the front of the air damn
> >just
> >>in front of the Front Wheel....
> >>
> >>I was thinking that aerodynamically the air flow would be disturbed as
the
> >>exhaust gases would take on a Frontal area of thier own leaving the
car...
> >>and a rear facing exhaust has been pointed out to add VERY minimally to
the
> >>overall thrust of a car.... any thoughts on the subject?
> >>
> >>Keith (happy to have Christmas here and also glad to see it go)
> >>
> >
> >
> >
> >
> >
>
>
>
> L.E. Mayfield
> 124 Maximillion Drive
> Madison, Al. 35758-8171
> 1-256-837-1051
>
> old >>>>>>>> http://www.hsv.tis.net/~mayfield
> new >>>>>>>> http://home.hiwaay.net/~lemayf
>
> DrMayf@AOL.com
> lemay@hiwaay.net <<<<preferred
>
> Sunbeam Tiger, B9471136
> Sunbeam Alpine Bonneville Land Speed Racer,
> '66 Hydroplane Drag Boat (390 FE)
>
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