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Can I upgrade to disc brakes front and rear? '05 Accord
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#11
 
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Re: Can I upgrade to disc brakes front and rear? '05 Accord -
05-18-2007
, 08:17 PM
| Tegger wrote: Joe LaVigne <jlavigne (AT) hits-buffalo (DOT) com> wrote in news:f2he42$5gn$1 (AT) news (DOT) datemas.de: Tegger wrote: Don't bother. Rear discs will get you no better braking and lots more maintenance headaches. Sure rear discs have a kewl factor that boring ol' drums do not, but they're not worth it. Stick with the drums. Out of curiosity, what maintenance issues are there? I have never serviced a set or rear discs, as this is my first car that came with them, but I have always hated working on drums. Front discs are extremely easy to work on, so what makes the rear harder? Rust. Rust. Seizure. Rust. More rust. Corrosion. More seizure. Rust. More corrosion. Even more rust. Even more seizure. If you live in Arizona or SoCal, rear discs are groovy man, but up in places where it rains or snows, they're a real bummer. Even in Texas, I would suggest leaving the drums. Fact is drum linings still last twice as long as disk pads maybe longer. Why people insist on haveing the latest 'n greatest when in fact is ain't any better just beats the crap outta me... |
On a FWD car the rear brakes do maybe 20% of the stopping. Drums on the
rear are an infinitely better choice for such a light-duty application.
Drums are sealed from the weather, and do not need to burn off moisture
to remain operational.
The shoes will last 75K miles with no maintenance whatsoever.
The only people who think rear discs are better than drums are those who
live in Arizona, or those who own shares in Norton Abrasives or Dow
Corning (or both).
--
Tegger
The Unofficial Honda/Acura FAQ
www.tegger.com/hondafaq/
#12
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On May 16, 5:11 pm, harley_davids... (AT) mailcity (DOT) com (Hrundi V. Bakshi) wrote: Hi. My '05 Accord has provided reliability beyond my expecations. I have many miles on it, since purchasing it new. It's an LX 4 cyl, with a 5sp. Everything works well. i love disc brakes. they are great. they are better in almost every aspect over drum brakes. |
Unless they are used on the rear of a FWD car.
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i say almost because, generally, a drum brake has more actual surface area (more surface area creates more friction). more friction means greater stopping power. friction creates more heat. heat leads to fade. fade means less stopping power. |
Blah blah blah. You read many automotive magazines but do not work on
any actual motor vehicles.
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disc brakes are out in the open, so they tend to shed the heat better than drums and therefore are used on all of the cool racecars. |
Do you regularly travel at 200mph? I know I don't. 200mph race
requirements are not the same as the requirements imposed by regular
low-speed city driving through salty winter slush.
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here is the best reason to keep your drum brakes: gas is expensive and not getting any cheaper. if i were to build a car today, it would have drum brakes at every corner. why? not because of rust. not because of maintenance. not because they aren't cool. not because of the parking brake. drum brakes have springs that pull the shoes away from the drum. disc brakes do not have this little feature. disc brakes use the imperfections of life to allow the disc to 'bounce' the pads away and create a gap. of course, people will say this extra bit of friction while traveling down the road is minimal.... |
You have evidently never actually watched a disc brake piston in action.
Correctly-operating disc brake pistons RETRACT when you let off the
pedal. Believe it...or not.
--
Tegger
The Unofficial Honda/Acura FAQ
www.tegger.com/hondafaq/
#13
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The ONLY disk brake cylinder that would actually retract pads from the rotor surface |
JT, they ALL do. ALL of them. EVERY one.
If the piston does NOT retract once you release the pedal, then the piston
is seizing and the caliper requires major servicing.
Not one single disc brake system does not involve piston retraction upon
pedal release. Not one. Not even Chrysler's weirdo Lambert discs of the
'50s.
--
Tegger
The Unofficial Honda/Acura FAQ
www.tegger.com/hondafaq/
#14
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Even in Texas, I would suggest leaving the drums. Fact is drum linings still last twice as long as disk pads maybe longer. Why people insist on haveing the latest 'n greatest when in fact is ain't any better just beats the crap outta me... On a FWD car the rear brakes do maybe 20% of the stopping. |
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Drums on the rear are an infinitely better choice for such a light-duty application. |
with all those red calipers sticking thru the bicycle
bespoked wheels
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Drums are sealed from the weather, and do not need to burn off moisture to remain operational. well, don't tell that to the rice boys. |
a few billion bucks
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The shoes will last 75K miles with no maintenance whatsoever. The only people who think rear discs are better than drums are those who live in Arizona, or those who own shares in Norton Abrasives or Dow Corning (or both). |
#15
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#16
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disc brakes are out in the open, so they tend to shed the heat better than drums and therefore are used on all of the cool racecars. Do you regularly travel at 200mph? I know I don't. 200mph race requirements are not the same as the requirements imposed by regular low-speed city driving through salty winter slush. |
ass into its bucket with a shoehorn and a gallon of vaseline), but I
worked with a CASCAR team for a season... they all had front and rear
discs, and lemme tell ya, on the short oval, those brakes would spend
half the circuit glowing red... but they cooled down pretty quick out of
the apex. Of course, having dedicated ducting to scoop air from the air
dam and pipe it right onto the rotors helped
#17
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-- Tegger |
idiot. go away.
bob z.
#18
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-- Tegger i really, really enjoyed all of your posts until this one. you are an idiot. go away. |
Except that I happen to be right.
I see so many people go on and on about the friction area of drums vs that
of discs, and cite the better heat-shedding capabilites of discs. The
problem is...all that is IRRELEVANT.
Rear brakes of either type generate so little heat that fade is NOT even
close to being any kind of a concern. Heat-fade is a concern with the
FRONTS (which handle 80% of braking effort), which is why all road cars use
discs at the front these days.
Rear discs heat up so little in use they cannot even reliably burn off the
moisture they collect, which is why they rust up so badly. Rear drums don't
heat up much at all either, but they are basically sealed from the weather.
A test if you want to try it. Procure the use of a rear disc-braked car and
a rear drum-braked one. Drive both vehicles up to 30 mph or so on a
deserted road. Now apply the parking brake hard, just short of lockup, as
though you were going to stop the car using just that brake.
You will find both systems feel exactly the same, and any "fade" will be
identical on both.
Of course, I assume both cars have rear brakes in good repair...
--
Tegger
The Unofficial Honda/Acura FAQ
www.tegger.com/hondafaq/
#19
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Rear brakes of either type generate so little heat that fade is NOT even close to being any kind of a concern. Heat-fade is a concern with the FRONTS (which handle 80% of braking effort), which is why all road cars use discs at the front these days. |
still have more noise problems than drums do and the slide pins are still
troublesome. The only problem I've ever had with rear drums is worn-out
self-adjusters. Replace the self-adjuster assembly (usually when the linings
are worn out) and they are good for the rest of the life of the car.
I'm convinced front drums are what gave drum brakes their reputation as
second rate. I learned to drive on cars that had drums all around, and they
were completely unacceptable for highway use.
Mike
#20
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Michael Pardee wrote: I'm convinced front drums are what gave drum brakes their reputation as second rate. i'd say it differently - it's front drums that /prove/ they're second rate! their action is non-linear and they can only dump heat /through/ the drum metal by conduction, not direct to atmosphere like a disk. |
to dump. Drum brakes fade like crazy in that application. That isn't an
issue in the rear.
From Edmunds techcenter @ http://tinyurl.com/6r6kh : ".. the truth is that
today's disc/drum setups are completely adequate for the majority of new
cars. Remember that both disc and drum brake design has been vastly improved
in the last 20 years. In fact, the current rear drum brake systems on
today's cars would provide better stopping performance then [sic] the front
disc setups of the '70s. And today's front disc brakes are truly exceptional
in terms of stopping power. Combined with the fact that between 60 and 90
percent of a vehicle's stopping power comes from the front wheels, it's
clear that a well-designed, modern drum brake is all that's required for
most rear wheel brake duty."
Mike
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