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- From: cn832@cleveland.Freenet.Edu (J. Grant Montgomery)
- Newsgroups: rec.autos.tech
- Subject: Re: Do SPOILERS Really Work??? no.
- Date: 13 Dec 1992 00:11:58 GMT
- Organization: Case Western Reserve University, Cleveland, OH (USA)
- Lines: 36
- Message-ID: <1gdv4eINNoen@usenet.INS.CWRU.Edu>
- References: <3404.88.uupcb@chaos.lrk.ar.us>
- Reply-To: cn832@cleveland.Freenet.Edu (J. Grant Montgomery)
- NNTP-Posting-Host: hela.ins.cwru.edu
-
-
- In a previous article, dave.williams@chaos.lrk.ar.us (Dave Williams) says:
-
- >
- >-> At US-legal automobile velocities you'd need a hell of a wing to make
- >-> any difference whatsoever. A few automobiles are sold with effective
- >-> spoilers at super-legal velocities, eg Porshe 911. Note the size of
- >-> the Porshe spoiler.
- >
- > A popular, but erroneous, belief.
- >
- > The effectiveness of a wing or spoiler is quite dependent on the shape
- >of the body. Some cars, you could put a picnic table on and it wouldn't
- >make a difference. Others, just a small lip will make a noticeable
- >change - and it can be effective as low as 35mph.
- >
- > For example, the '70-'73 Capris are very sensitive to crosswinds. Get
- >some random gusts out there and you're liable to be pulled over as a
- >suspected DWI. A mere three inch rear spoiler will stabilize the car
- >quite well. Front spoilers appear to do nothing for that particular
- >car.
- >
- > In another test, we used a '63 Chevy II, pretty close to a shoebox
- >shape. No rear wing or spoiler we tested did anything we could notice,
- >but a front air dam made a big difference in directional stability at
- >60mph, and on trips we observed a consistent 2 to 2.5 mpg increase over
- >the non-dammed car.
- >
- My question is, I have an '85 Toyota Celica Supra and it has a factory
- spoiler on the liftgate. It does extend across the entire width of the
- car, and it is maybe 3-5" tall. I drive along I-80 in the valley in CA
- and I get knocked around by winds every once and awhile. Would I
- experience more problems with the wind if I didn't have the spoiler?
- I mean is mine doing any good at all or does it just look neat?
-
- Grant
-