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Car Forum / Driving, Maintenance, Tuning / Maintenance and Repair / January 2007

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Bras, For Your Car

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OurCarGuy - 23 Jan 2007 16:19 GMT
Bras For Your Car

Whoever coined the term, car bra, must have done so to attract a lot of
attention. Apparently, they have succeeded. Cars, trucks, SUVs, and
vans are all sporting bras and they are a very attractive site. Let's
take a closer look at car bras and what they are all about.

Not all car bras are called car bras. Other names you will hear are
hood protectors or car masks. Personally, they look like masks more
than anything to me in that they cover the front end [or face] of the
car, leaving headlights and turn signal lights free. Some are designed
so that fog lights can also be bra free.

Besides looking absolutely cool, car bras do have a practical function
to them. A properly installed bra will protect your car's front end
from flying debris, rocks kicked up by other vehicles while you drive
down the highway, insects, and road tar.

Some bras cover the entire hood while others cover the grill and a
small section of the front of the hood. In the latter case, two piece
car bras allow for you to keep the bra on while still being able to
lift the hood, if need be. Some car bras must be removed in order to
access the hood...

Read the entire article at
http://www.ourcartips.com/car/bras_for_your_car.html
Mike Romain - 23 Jan 2007 16:54 GMT
'Every' vehicle without exception that I have observed using a 'bra' had
their paint job destroyed by this bra.  Every one!

Road dust gets between the bra and vehicle and acts like fine sandpaper
which scours the paint away.

I do live in Canada that sees road salt which also will collect and fast
rust rot the sanded off areas, but even in summer there is lots of road
dust around to just screw the paint.

Mike
86/00 CJ7 Laredo, 33x9.5 BFG Muds, 'glass nose to tail in '00
88 Cherokee 235 BFG AT's
Canadian Off Road Trips Photos:  Non members can still view!
Jan/06 http://www.imagestation.com/album/pictures.html?id=2115147590
(More Off Road album links at bottom of the view page)

> Bras For Your Car
>
[quoted text clipped - 22 lines]
> Read the entire article at
> http://www.ourcartips.com/car/bras_for_your_car.html
Brent P - 23 Jan 2007 17:05 GMT
> 'Every' vehicle without exception that I have observed using a 'bra' had
> their paint job destroyed by this bra.  Every one!

I've seen the same thing.

I've seen pictures on the web of a special plastic protective film one
can put right on the paint. It peels off without damage and protects the
paint from from rocks, scratches etc while being nearly invisible. Think
it was a 3M product of some sort. Seems like a much better idea.
John S. - 23 Jan 2007 17:25 GMT
> Bras For Your Car
>
[quoted text clipped - 22 lines]
> Read the entire article at
> http://www.ourcartips.com/car/bras_for_your_car.html

Hmmm...lets see if I understand this correctly.

You want to guard against the minor chips and dings that one might get
by using a huge piece of reinforced material that is guaranteed to
scuff all painted surfaces it comes into contact with and will
undoubtedly introduce a tan line on what is remaining.  Now why would
anyone who cares about their car buy such a device.

Do you even think about the stuff posted on your website, or is this
simply a copy and paste exercise.
cuhulin@webtv.net - 23 Jan 2007 17:38 GMT
Divorced woman next door to me,one of her boyfriend's pickup truck is
parked in her driveway.(brake master cylinder problem) His pickup truck
has one of those fabric net tail gates on there instead of the factory
pickup truck metal tail gate.I guess they think the fabric net tail gate
saves gas,when in fact,no gas savings are measurable.If I want to save
gas,I will ride my bicycle.
cuhulin
HLS@nospam.nix - 23 Jan 2007 19:28 GMT
> Divorced woman next door to me,one of her boyfriend's pickup truck is
> parked in her driveway.(brake master cylinder problem) His pickup truck
[quoted text clipped - 3 lines]
> gas,I will ride my bicycle.
> cuhulin

Mythbusters did a half hearted experiment with two 'identical' pickups,
one running with the tailgate down, the other running with it up.  Was a
shitty experiment, but guess which one went further on measured volumes
of fuel?  Yup, the one with the tailgate UP.  Auto engineers claimed that
the controlled turbulence in the truck bed actually decreases drag.

Same with most of these airfoils the Highschool Harries love to mount
on their rice rockets.  Not worth the time to put them on.
John S. - 23 Jan 2007 20:26 GMT
> > Divorced woman next door to me,one of her boyfriend's pickup truck is
> > parked in her driveway.(brake master cylinder problem) His pickup truck
[quoted text clipped - 12 lines]
> Same with most of these airfoils the Highschool Harries love to mount
> on their rice rockets.  Not worth the time to put them on.

I got a huge chuckle out of a Porsche with an automatic spoiler that
came up at approximately 40 mph.  I was behind it in traffic and over 5
miles it bobbed up and down maybe 10 times as traffic crossed that
magic 40 mph speed.

I'm sure the guy behind the wheel was feeling like a Serious Driver as
the airfoil light flashed on and off and the foil went up and down in
the rear view mirror.  Looked more like a distress signal of sorts from
behind and was good for a laugh.

I'm sure that at some speed that spoiler would help, but those speeds
are illegal, so what's the point.
HLS@nospam.nix - 23 Jan 2007 22:27 GMT
> I'm sure that at some speed that spoiler would help, but those speeds
> are illegal, so what's the point.

Right on, John S.
Steve W. - 24 Jan 2007 01:21 GMT
>>> Divorced woman next door to me,one of her boyfriend's pickup truck is
>>> parked in her driveway.(brake master cylinder problem) His pickup truck
[quoted text clipped - 24 lines]
> I'm sure that at some speed that spoiler would help, but those speeds
> are illegal, so what's the point.

In Germany that spoiler was programmed to deploy over 90mph. The problem
was that the yuppies in the US wanted it to deploy at speeds that they
normally drove at. So Porsche reprogrammed it to deploy at 45 for the US
market. However they also warned that deploying at that speed does lower
fuel mileage.

Signature

Steve W.

Tegger - 24 Jan 2007 01:37 GMT
n.

> I got a huge chuckle out of a Porsche with an automatic spoiler that
> came up at approximately 40 mph.  I was behind it in traffic and over
[quoted text clipped - 8 lines]
> I'm sure that at some speed that spoiler would help, but those speeds
> are illegal, so what's the point.

In Germany, that spoiler rises at about 150mph.

Porsche recalibrated it for North American speeds so NA customers would
think they were getting their money's worth.

I had originally thought the spoiler was supposed to rise at 55mph, but
evidently I was wrong.

Signature

Tegger

KjunRaven - 24 Jan 2007 00:24 GMT
<HLS@nospam.nix> wrote in news:Lltth.12704$ji1.4774
@newssvr12.news.prodigy.net:

>> Divorced woman next door to me,one of her boyfriend's pickup truck is
>> parked in her driveway.(brake master cylinder problem) His pickup truck
[quoted text clipped - 12 lines]
> Same with most of these airfoils the Highschool Harries love to mount
> on their rice rockets.  Not worth the time to put them on.

the wind tunnel portion of that entertaining experiment did show the
'bubble' of turbulance that forces air above the tailgate tho!........jap-
crap with spoilers. yep. gotta love em. especially if they have them
annoying bumble bee mufflers!
Comboverfish - 24 Jan 2007 01:20 GMT
> jap-crap with spoilers. yep. gotta love em. especially if they have them
> annoying bumble bee mufflers

Bumble bee mufflers... bumble bee...bumble... muffl... oh, fart cans!
Yeah, those are cool.

Toyota MDT in MO
Steve W. - 24 Jan 2007 01:27 GMT
> <HLS@nospam.nix> wrote in news:Lltth.12704$ji1.4774
> @newssvr12.news.prodigy.net:
[quoted text clipped - 19 lines]
> crap with spoilers. yep. gotta love em. especially if they have them
> annoying bumble bee mufflers!

That is NOT a bumble bee muffler, how DARE you degrade a nice insect
like that....
  It is properly referred to by the cynics as a "Fart Can"

Signature

Steve W.

Tegger - 24 Jan 2007 01:34 GMT
>> Divorced woman next door to me,one of her boyfriend's pickup truck is
>> parked in her driveway.(brake master cylinder problem) His pickup
[quoted text clipped - 10 lines]
> engineers claimed that the controlled turbulence in the truck bed
> actually decreases drag.

I believe it.

Consider: With the tailgate up, there is created an eddy within the
bed, roughly level with the top of the tailgate, and moving forwards at
its upper surface (which is why leaves and empty beer cans collect under
your rear window). This eddy has the effect of reducing the downward
vertical distance that rearward-moving air would otherwise be forced to
travel down the back of the pickup's vertical rear cab face to reach the
point where it would be directed rearward again upon meeting the eddy, thus
reducing the drag-inducing low-pressure pocket immediately behind the cab.

Now, consider that the tailgate is down: The eddy cannot fully form,
since the air is now allowed to slide out the back more readily. Leaves
and empty beer cans are now more likely to fall on the road and annoy
other drivers. Since the eddy is much reduced, the air leaving the cabin
roof must travel further down the cabin's vertical rear window before
exiting the vehicle's space, which means a larger low-pressure pocket
aft of the cab.

A larger low-pressure pocket means more drag.

Ever seen a Kamm-back pickup?

Signature

Tegger

 
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