Fading brakes

speedsatya · 5th December 2005, 19:28

Quote:

Originally Posted by viper.

@ Satya - This process works even better on ventilated discs. Only ventilated discs dont solve the fading as most people are facing.

wow...so how long does this whole process take ...and how much does it cost ?????

and this will require skilled labour as when u drill holes,one end of the disc will be rough beacsue of the drill bit coming out ..so it will have to be polished perfectly to remove the rough edges..

falcon · 5th December 2005, 19:35

Just a thought...
Braking works better when the surface area in contact is larger. i.e. larger pads and discs would provide better breaking. This in turn also means more heat being generated.

Now, by cross drilling, we would be reducing the effective surface area of the pads touching the discs... so, cooling would sure be better...
BUT does this mean we are reducing the breaking efficiency ???
meaning Weaker brakes ???

viper · 5th December 2005, 19:49

Hey Satya,

I know thats why I said it almost takes a day. I charge approx 1500 including labour for opening and refitting the discs.

@Falcon - No infact the brakes bite better but you reduce the life of your brake pads by say 5-10%.

Viper

falcon · 5th December 2005, 20:01

Quote:

Originally Posted by viper

@Falcon - No infact the brakes bite better but you reduce the life of your brake pads by say 5-10%.

Thanks for the clarification Viper.
Wanted to get the brakes on my Contessa overhauled... will ask about this as well when I go to the garage.

Falcon

autopsyche · 5th December 2005, 20:08

As you mentioned brake system overhaul includes new pads and new brake fluid and sometimes new disc rotors if theyre in a bad shape. Ventilated discs do help in quicker heat disspiation.

Brake fluid has a certain boiling point i think it is around 130 or 150 degrees ill check up on exact point later. Old brake fluid keeps getting contaminated with moisture which slowly brings its boiling point down towards the 100 degree water mark thus decresing its capacity to provide efficient force. I have a Brake fluid tester with me which i got from germany for the same purpose.

Also do check what specification fluid your car runs on. Most of the new ones are on DOT 3 which is the first recommended upgrade if your car uses DOT 2.

Regards,

Arush

viper · 5th December 2005, 20:09

Quote:

Originally Posted by autopsyche

As you mentioned brake system overhaul includes new pads and new brake fluid and sometimes new disc rotors if theyre in a bad shape. Ventilated discs do help in quicker heat disspiation.

Brake fluid has a certain boiling point i think it is around 130 or 150 degrees ill check up on exact point later. Old brake fluid keeps getting contaminated with moisture which slowly brings its boiling point down towards the 100 degree water mark thus decresing its capacity to provide efficient force. I have a Brake fluid tester with me which i got from germany for the same purpose.

Also do check what specification fluid your car runs on. Most of the new ones are on DOT 3 which is the first recommended upgrade if your car uses DOT 2.

Regards,

Arush

Hey Arush,

I think most new cars are either on DOT 3 or DOT 4. The best being DOT 4.

Viper

autopsyche · 5th December 2005, 20:28

yes viper i guess i goofed up there, dot 3 is standard, upgrade is dot 4. thanks.

5th December 2005, 19:35	#17
falcon BHPian Join Date: Jun 2005 Location: Mumbai / Goa / UK Posts: 88 Thanked: 4 Times View My Garage	Just a thought... Braking works better when the surface area in contact is larger. i.e. larger pads and discs would provide better breaking. This in turn also means more heat being generated. Now, by cross drilling, we would be reducing the effective surface area of the pads touching the discs... so, cooling would sure be better... BUT does this mean we are reducing the breaking efficiency ??? meaning Weaker brakes ??? Last edited by falcon : 5th December 2005 at 19:36.
	() Thanks

5th December 2005, 19:49	#18
viper BANNED Join Date: Mar 2005 Location: Mumbai Posts: 1,773 Thanked: 19 Times	Hey Satya, I know thats why I said it almost takes a day. I charge approx 1500 including labour for opening and refitting the discs. @Falcon - No infact the brakes bite better but you reduce the life of your brake pads by say 5-10%. Viper Last edited by viper : 5th December 2005 at 19:51.
	() Thanks

5th December 2005, 20:08	#20
autopsyche Senior - BHPian Join Date: Nov 2004 Location: New Delhi, Indi Posts: 1,519 Thanked: 33 Times View My Garage	As you mentioned brake system overhaul includes new pads and new brake fluid and sometimes new disc rotors if theyre in a bad shape. Ventilated discs do help in quicker heat disspiation. Brake fluid has a certain boiling point i think it is around 130 or 150 degrees ill check up on exact point later. Old brake fluid keeps getting contaminated with moisture which slowly brings its boiling point down towards the 100 degree water mark thus decresing its capacity to provide efficient force. I have a Brake fluid tester with me which i got from germany for the same purpose. Also do check what specification fluid your car runs on. Most of the new ones are on DOT 3 which is the first recommended upgrade if your car uses DOT 2. Regards, Arush
	() Thanks

5th December 2005, 20:28	#22
autopsyche Senior - BHPian Join Date: Nov 2004 Location: New Delhi, Indi Posts: 1,519 Thanked: 33 Times View My Garage	yes viper i guess i goofed up there, dot 3 is standard, upgrade is dot 4. thanks.
	() Thanks