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100/6 1957 Dunlop disc-brakes
- Thread starter massimo
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There were 40 cars that came that way from the factory and it was also a dealer option (for $243.80!). You can find this and more on www.healeysix.net.
Barryp
Senior Member
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Hi Massimo and welcome.
Good luck finding info on the Dunlop four wheel discs, and whether they were original to your car, I hope they were. Even if they weren't ordered on it they are still very rare as you are the 1st person I've come across that has a car with them. I have a '58 BN4 that my father installed the kit on in '59, by that time the price was up to $387.00 USD from Hambro according to the notes I have, (exchnage rate, shipping fees and dealer markup I guess?).
Please post some pics.
Barry
Good luck finding info on the Dunlop four wheel discs, and whether they were original to your car, I hope they were. Even if they weren't ordered on it they are still very rare as you are the 1st person I've come across that has a car with them. I have a '58 BN4 that my father installed the kit on in '59, by that time the price was up to $387.00 USD from Hambro according to the notes I have, (exchnage rate, shipping fees and dealer markup I guess?).
Please post some pics.
Barry
andrea
Jedi Knight
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Hi Massimo
very pleased to find one other Italian on AH Forum
the other is Daniele from Rome I am from Trieste
I see only one photo of one 100/6 with four DUNLOP discs
probably on Derek site
https://www.healeysix.net/
I also have one 100/6 on restoration-if you need some help
not hesitate to ask on the forum (It is very useful)
or to me
here my photoalbums
https://picasaweb.google.com/searunner44
CIAO
Andrea
very pleased to find one other Italian on AH Forum
the other is Daniele from Rome I am from Trieste
I see only one photo of one 100/6 with four DUNLOP discs
probably on Derek site
https://www.healeysix.net/
I also have one 100/6 on restoration-if you need some help
not hesitate to ask on the forum (It is very useful)
or to me
here my photoalbums
https://picasaweb.google.com/searunner44
CIAO
Andrea
DerekJ
Luke Skywalker
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Massimo
I must have missed this thread. I'm interested that your car is a 1957 BN4. The currently accepted position is that the 40 cars fitted with disc brakes were produced around Nov/Dec 1957. What number is your car and what is the date of manufacture?
Did you get a Heriatge certificate?
I must have missed this thread. I'm interested that your car is a 1957 BN4. The currently accepted position is that the 40 cars fitted with disc brakes were produced around Nov/Dec 1957. What number is your car and what is the date of manufacture?
Did you get a Heriatge certificate?
DerekJ
Luke Skywalker
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Couple of additional comments.
It is possible that the Heritage Certificate will not mention the disc brakes as these were fitted after production at the Donald Healey Motor Company.
The fact that they are Dunlop brakes means they are probably original BUT that does not mean they were one of the 40 homolgated cars. The reason is that four wheel disc brakes were also available as an option for anybody to purchase. There are quite a number of known examples of these option cars. Barry's is one of them.
It is possible that the Heritage Certificate will not mention the disc brakes as these were fitted after production at the Donald Healey Motor Company.
The fact that they are Dunlop brakes means they are probably original BUT that does not mean they were one of the 40 homolgated cars. The reason is that four wheel disc brakes were also available as an option for anybody to purchase. There are quite a number of known examples of these option cars. Barry's is one of them.
bob hughes
Luke Skywalker
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And a friend of mine in the local branch of the Healey club has two, and there is another with a chap who has recently joined us.
Bob
Bob
Thank you for your answers.
Sorry for my late, I was on holiday and I' ve looked your messages only today.
I've requested the Heritage Certificate and my car was produced in the June of 1957.
Unfortunately my car didn't came with disc brakes from the factory but they are fitted after.
In this months I've had a problem at the master cylinder (pomp) and I have known that also this was Dunlop and it has a number.
Sorry for my late, I was on holiday and I' ve looked your messages only today.
I've requested the Heritage Certificate and my car was produced in the June of 1957.
Unfortunately my car didn't came with disc brakes from the factory but they are fitted after.
In this months I've had a problem at the master cylinder (pomp) and I have known that also this was Dunlop and it has a number.
healeylvr57
Senior Member
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I acquired a disc brake rear assembly years ago that I'm intigrating inti my 57 100-6 and convirting the front to disc as well. Is a booster required or optional for this application and does it need a proportional valve to balance the front-rear bias? If anyone has experience with this Iwould appreciate any information I can get.The advantage of 4 wheel disc's over drums should be significant if done properly on this car.My car is a restoration in progress after many years of use (purchased in 1970 driven through 1999) thank's for any input
dougie
Luke Skywalker
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In short, no you do not need a booster, but it does aid in braking. I run a bias valve on my '57 100-6 MM vintage racer, but I also have special 4-pot front calipers and twin mast cylinder. I don't think the early works cars used bias valves or boosters. Keep us posted on the restoration, we need more '57 big Healeys on the road.
bighealeysource
Luke Skywalker
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Hey Doug,
Have you get her repaired yet from the racing accident ? I've sent all your videos to my son who's started racing a Lotus Elise.
Regards,
Mike
Have you get her repaired yet from the racing accident ? I've sent all your videos to my son who's started racing a Lotus Elise.
Regards,
Mike
dougie
Luke Skywalker
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Lin -
From the picture you can see the installation of the bias valve, it enters just below the seat at the center if the back footwell. It's discrete, as our race regulations require that you can run a bias, but can't access it during a race. https://www.jegs.com/i/JEGS-Performance-Products/555/63020/10002/-1?parentProductId=755192
Greg I misspoke, I'm running a Wilwood tandem remote master cylinder, not a true twin system. I think mine's 3/4" though. https://www.jegs.com/i/Wilwood/950/260-7563/10002/-1?parentProductId=756328
Mike, "414's" at the paint shop right now. Then new aluminum front wings took a little more time to massage into place. My shroud also revealed a few more war injurys after it was completely stripped, which are now fixed correctly. I should be ready when the 2012 race season starts.
From the picture you can see the installation of the bias valve, it enters just below the seat at the center if the back footwell. It's discrete, as our race regulations require that you can run a bias, but can't access it during a race. https://www.jegs.com/i/JEGS-Performance-Products/555/63020/10002/-1?parentProductId=755192
Greg I misspoke, I'm running a Wilwood tandem remote master cylinder, not a true twin system. I think mine's 3/4" though. https://www.jegs.com/i/Wilwood/950/260-7563/10002/-1?parentProductId=756328
Mike, "414's" at the paint shop right now. Then new aluminum front wings took a little more time to massage into place. My shroud also revealed a few more war injurys after it was completely stripped, which are now fixed correctly. I should be ready when the 2012 race season starts.
