How do you keep rotors shining?
Team Owner
Joined: Jan 2003
Posts: 21,234
Likes: 19
From: Freestate Corvette Club! Elkridge, MD
St. Jude Donor '17
Great Information Here!!!
THANKS SOOOOO MUCH EVIL-TWIN! This is great information and is truly appreciated! I am going to get new rotors and will start them off right from the begining!
Thread Starter
Drifting
Joined: Oct 2002
Posts: 1,710
Likes: 0
From: Langhorne PA
Originally Posted by Jeffkil
Team Owner
Joined: Mar 2001
Posts: 21,325
Likes: 3,841
From: small town in S.E Pa. PA
St. Jude Donor '03-'04
Originally Posted by Dr. Dan
I had thought of ceramic coating the rotors. Jet-Hot, for one, has a "Sterling" coat that is supposed to shine like chrome. Baer says bad idea, as the heat will not dissipate through the cast iron as it is supposed to, leading to braking problems. Wouldn't be that expensive if that was the way I wanted to go.
dissipating heat evenly is a major effort. for example something as simple as a chamfer on a hole can lower the hot spot issue,A sinus curve chamfer is the best, it is a rounded chamfer which leaves almost no hot spot signature. An unchamfered hole had a dramatic hot spot at the 90 degree corner on the fire path , tis creates a radial hot-spot around the entire hole. This hot spot contributes to cracking around the holes. Increasing the surface tension with a chrome coating will do a similar thing. Trying to maintain an even temp when under load and dissipating the heat evenly is what quality rotors strive for.
Team Owner
Joined: Mar 2001
Posts: 21,325
Likes: 3,841
From: small town in S.E Pa. PA
St. Jude Donor '03-'04
Originally Posted by Dr. Dan
I had thought of ceramic coating the rotors. Jet-Hot, for one, has a "Sterling" coat that is supposed to shine like chrome. Baer says bad idea, as the heat will not dissipate through the cast iron as it is supposed to, leading to braking problems. Wouldn't be that expensive if that was the way I wanted to go.
Dissipating heat evenly is a major effort. For example, something as simple as a chamfer on a hole can lower the hot spot issue. A sinus curve chamfer is the best, it is a rounded chamfer which leaves almost no hot spot signature. An unchamfered hole has a dramatic hot spot at the 90 degree corner on the fire path , this creates a radial hot-spot around the entire hole. This hot spot contributes to cracking around the holes. Increasing the surface tension with a chrome or similar coating will do a similar thing. Trying to maintain an even temp when under load and dissipating that heat evenly, is what quality rotors manufacturers strive for.
Burning Brakes
Joined: Jan 2004
Posts: 1,220
Likes: 0
From: California
Originally Posted by Evil-Twin
First of all I am retired with a lot of time on my hands. Secondly, these rotors where 1000 dollars. After a few years they start to look haggard. A two day investment in detail brings them back to their 1000 dollar look.. it is also personally rewarding to bring these back to the luster they had when new. Actually they look better than New because the zinc is gray. After my polish and clear they sparkle like mirrors.
Team Owner
Joined: Mar 2001
Posts: 21,325
Likes: 3,841
From: small town in S.E Pa. PA
St. Jude Donor '03-'04
Originally Posted by quick99ls1
even if i wasnt retired i would spent the time and money to get that finish. i think its worth it even if it lastet for a little bit, i think they look amazing and you did a great job.
I would invest only four hours in getting two rotors done in one day.. I would not spend all day trying to do all four because at the end of eight hours its too much work and the last rotor will not look as good as the first one because your effort will be less focused.. four hours and two excellent looking rotors is a good goal for one days work. and the effort should last a year.
Thread Starter
Drifting
Joined: Oct 2002
Posts: 1,710
Likes: 0
From: Langhorne PA
Originally Posted by Evil-Twin
Listen to Baer, hot spots on the rotors can be a major problem.. there are many things that go into a quality rotor, you just don't punch holes in a drilled and slotted rotor.
Dissipating heat evenly is a major effort. For example, something as simple as a chamfer on a hole can lower the hot spot issue. A sinus curve chamfer is the best, it is a rounded chamfer which leaves almost no hot spot signature. An unchamfered hole has a dramatic hot spot at the 90 degree corner on the fire path , this creates a radial hot-spot around the entire hole. This hot spot contributes to cracking around the holes. Increasing the surface tension with a chrome or similar coating will do a similar thing. Trying to maintain an even temp when under load and dissipating that heat evenly, is what quality rotors manufacturers strive for.
Dissipating heat evenly is a major effort. For example, something as simple as a chamfer on a hole can lower the hot spot issue. A sinus curve chamfer is the best, it is a rounded chamfer which leaves almost no hot spot signature. An unchamfered hole has a dramatic hot spot at the 90 degree corner on the fire path , this creates a radial hot-spot around the entire hole. This hot spot contributes to cracking around the holes. Increasing the surface tension with a chrome or similar coating will do a similar thing. Trying to maintain an even temp when under load and dissipating that heat evenly, is what quality rotors manufacturers strive for.
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