They also made a few changes to the rear suspension too to control the
problem. The Audis are a bit quicker than Roadsters and the problems
happened on high speed runs on the Autobahn where there is no speed
restriction.
I do believe the problem happens about 130 or so and no US cars ever
reported the same problem. I wonder why.
Mike
----- Original Message -----
From: "Gary McCormick" <svgkm@halley.ca.essd.northgrum.com>
To: "Pre-Zee" <Pre_Z@msn.com>
Cc: "Hall, Phillip" <Phillip.B.Hall@MSFC.NASA.GOV>; "Roadsters (E-mail)"
<Datsun-roadsters@autox.team.net>
Sent: Wednesday, November 28, 2001 11:04 AM
Subject: Re: Rear spoiler for custom
> Not to say for sure that Phillip's spoiler will produce any (or the
desired) effect, but
> take a look at the little lip spoiler that has sprouted recently on Audi
TTs. The Audi TT
> spoiler was a recall - they found the cars were getting tail happy due to
a low-pressure
> condition over the rear deck. Small changes in the direction of the air
flow, especially
> at the rear of the car, can make a big difference. A small "lip" spoiler
like this is
> designed to keep the air flow attached to the rear of the car for a little
bit longer,
> reducing turbulent drag and the lift that may accompany it. (BTW - I sat
in an Audi TT
> convertible at the SF Auto Show last week - after I went and checked out
Calspeed's car in
> the vintage racer room - pretty nifty!).
>
> Gary McCormick
> San Jose, CA
>
> Pre-Zee wrote:
>
> > I like it, but as you say it can sure disappear. I am thinking it is
too
> > small to be very effective. Have you considered carrying the rear panel
up
> > to the tops of the fins? If your rear pan went up to the top of the
fins &
> > straight across it would give slightly more presence to the rear of the
car
> > & a whole lot more 'wing' surface area. Maybe too much surface area,
but
> > you could reduce it by cutting out D-A-T-S-U-N across the 'wing'
> >
> > On second thought maybe that will produce more drag than actual
downforce as
> > you would be creating a pocket. Oh well, it's a thought anyway.
> >
> > I am glad to see you are attaching to the car body rather than the trunk
lid
> > which flexes on it squishy rubber molding.
> >
> > George M (Pre-Z)
> > ----- Original Message -----
> > From: Hall, Phillip <Phillip.B.Hall@MSFC.NASA.GOV>
> > To: Roadsters (E-mail) <Datsun-roadsters@autox.team.net>
> > Sent: Tuesday, November 27, 2001 7:40 AM
> > Subject: Rear spoiler for custom
> >
> > > Hey All -
> > >
> > > I made a rear spoiler for the custom out of 1/6 inch aluminum. It
turned
> > > out nice, but will make some adjustments in shape. I will also make
one
> > out
> > > of 1/8 aluminum to add some dimension.
> > >
> > > Pictures at www.picturetrail.com/SPL311
> > >
> > > Let me know how you like it. Friends can't make up their mind. They
> > think
> > > the car looks good with or without. I like it!! Once Spot is one
color,
> > it
> > > will stand out more.
> > >
> > > You all have a great day!!
> > >
> > > Phil
> > > SEROC
> > >
> > > /// datsun-roadsters@autox.team.net mailing list
> > > /// Send admin requests to majordomo@autox.team.net or go to
> > > /// http://www.team.net/cgi-bin/majorcool
> > > /// Send list postings to datsun-roadsters@autox.team.net
> >
> > /// datsun-roadsters@autox.team.net mailing list
> > /// Send admin requests to majordomo@autox.team.net or go to
> > /// http://www.team.net/cgi-bin/majorcool
> > /// Send list postings to datsun-roadsters@autox.team.net
>
> /// datsun-roadsters@autox.team.net mailing list
> /// Send admin requests to majordomo@autox.team.net or go to
> /// http://www.team.net/cgi-bin/majorcool
> /// Send list postings to datsun-roadsters@autox.team.net
/// datsun-roadsters@autox.team.net mailing list
|