leuelliot:
I assume you mean effective not efficient. Brake pads have a stronger overall pedal feel to brake drums. Difference in stopping distance between the two is also negligible, most auto manufacturers are dropping drums in favor of disks for their base models. Brake linings last 5 times longer than pads, i once drove a car for 80,000 miles before needing to replace the linings.

Harwoyeez:
Break pad does it better than the drum because of the heat caused by friction. Although pad wears early than brake lining . Most auto makers are ditching the drum system as front wheel drive which is taking over the auto industry

edlion57:
Anything pad der try

Siena:
In terms of stopping power, pads are more effective than drums, when comparing discs and drums with similar friction surface areas (size).

The enemy of braking is heat. Which is why brakes may be more effective the first few times they are used. Several braking sessions later (from moderate to high speeds) and the stopping distances will be longer. This is caused by "brake fade", as a result of friction heat.

Discs and pads are better at dissipating heat, due to the open design. Drums and shoes are enclosed, meaning heat can not be dissipated as efficiently as in a disc set-up. Pads are clamped against the discs by calipers, meaning the piston/s and cylinder bore/s are larger, compared to the smaller pistons and bores on the wheel cylinders that force shoes against drums.

Drum brakes are also more prone to internal corrosion, the pivot points and adjusting mechanisms seize up.

Siena:


Brake linings last longer than pads only if the linings are fitted to the rear of the car, not because linings have a longer life span. Pads fitted to the rear of a car will also last longer than the same fitted to the front. This is due to approx. 75% of braking being available at the front.

If the linings are fitted to the front of a car, they will have a considerably shorter life expectancy than pads fitted to the front of the same car.

jayriginal:
Everyone saying Siena has the best answer, whether they understand what he said or not.

airsaylongcon:


When u have got a reputation of been on top of your game in your field, whatever you says goes

jayriginal:


Oh I don't doubt his experience, I'm just pointing out the follow follow mentality of people endorsing things they don't understand simply because it sounds complicated.

Siena:
In terms of stopping power, pads are more effective than drums, when comparing discs and drums with similar friction surface areas (size).

The enemy of braking is heat. Which is why brakes may be more effective the first few times they are used. Several braking sessions later (from moderate to high speeds) and the stopping distances will be longer. This is caused by "brake fade", as a result of friction heat.

Discs and pads are better at dissipating heat, due to the open design. Drums and shoes are enclosed, meaning heat can not be dissipated as efficiently as in a disc set-up. Pads are clamped against the discs by calipers, meaning the piston/s and cylinder bore/s are larger, compared to the smaller pistons and bores on the wheel cylinders that force shoes against drums.

Drum brakes are also more prone to internal corrosion, the pivot points and adjusting mechanisms seize up.

airsaylongcon:


Siena talk forced me to do a lot of reading about cars ọ. I used to drive and Audi 80 B3 (still drive it when I just want to mock about). I never knew anything ABOUT audi platforms until I saw Siena tell someone that he (Siena) has no clue what an Audi Tiger Face was. My jaw dropped. I'm like "what other name can someone call Tiger Face again?" ended up reading so much stuff and found a Tiger Face is an Audi 80 B4 and the jallopy I had was a B3. Now I'm knowledgeable all the way to B6 (cos that's the latest I've handled). I've got wiring diagrams, maintenance manuals and all what not from B3 to B6. Some in Russian sef that I translated to English.

jayriginal:


Oh I don't doubt his experience, I'm just pointing out the follow follow mentality of people endorsing things they don't understand simply because it sounds complicated.

airsaylongcon:


Siena talk forced me to do a lot of reading about cars ọ. I used to drive and Audi 80 B3 (still drive it when I just want to mock about). I never knew anything ABOUT audi platforms until I saw Siena tell someone that he (Siena) has no clue what an Audi Tiger Face was. My jaw dropped. I'm like "what other name can someone call Tiger Face again?" ended up reading so much stuff and found a Tiger Face is an Audi 80 B4 and the jallopy I had was a B3. Now I'm knowledgeable all the way to B6 (cos that's the latest I've handled). I've got wiring diagrams, maintenance manuals and all what not from B3 to B6. Some in Russian sef that I translated to English.