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paul55
Luxembourg
731 Posts |
 Posted - 18/08/2023 : 16:34:37
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Bit of a long shot I expect, but does anyone have or know where I can buy a set of Q type brake drums that are made out of the correct cast iron and actually work!
Thanks,
Paul |
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Westbury
United Kingdom
2010 Posts |
Posted - 18/08/2023 : 21:07:27
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Hello, Paul.
It might be just as easy to get a set machined up from solid billets, choosing the correct grade of material, then you could include some nice cooling fins?
Regards,
Chris |
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paul55
Luxembourg
731 Posts |
Posted - 20/08/2023 : 07:50:14
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| well that's one way Chris..could prove to be a tad expensive though! Thanks all the same! Paul |
Edited by - paul55 on 20/08/2023 07:50:54 |
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George Eagle
United Kingdom
3240 Posts |
Posted - 20/08/2023 : 09:59:41
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I fitted Alfin drums to my L2, the braking was much improved. The drums are made by Typecast Ltd. I also think the drums look good on a Triple-M car.
No connection, just a satisfied customer.
George.
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Edited by - George Eagle on 20/08/2023 10:53:22 |
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paul55
Luxembourg
731 Posts |
Posted - 20/08/2023 : 11:20:07
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| thanks George, I'll check them out. Paul |
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Colin Butchers
United Kingdom
1487 Posts |
Posted - 20/08/2023 : 11:21:23
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I believe that Tom Dark Engineering are able to supply new 12" brake drums to Q Type profile. I am interested in getting one set. Perhaps Tom could make a few sets if several of us are interested.
Colin B. |
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coracle
United Kingdom
1940 Posts |
Posted - 20/08/2023 : 13:07:50
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| How does the Q profile differ from the regular profile? |
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Westbury
United Kingdom
2010 Posts |
Posted - 20/08/2023 : 15:20:18
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Hello, Paul.
I can also recommend the drums mentioned by George but I thought you wanted the original Q pattern drums.
Chris |
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paul55
Luxembourg
731 Posts |
Posted - 20/08/2023 : 18:49:01
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| I do Chris, I was going to ask how much for Q type ones...keep everyone updated. |
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paul55
Luxembourg
731 Posts |
Posted - 20/08/2023 : 18:50:38
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quote:
Originally posted by coracle
How does the Q profile differ from the regular profile?
just one thicker fin on the outer and inner edge...try to get a photo later. |
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Westbury
United Kingdom
2010 Posts |
Posted - 20/08/2023 : 19:51:05
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Original Q type drum, sorry it is not clearer.
Chris
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DK6780
United Kingdom
249 Posts |
Posted - 20/08/2023 : 20:18:27
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| What was the original construction of these drums? At the same time Riley (and hence for ERA) manufactured their racing drums from Magnesium alloy ("electron") and shunk a cast iron liner into them with a limited number of radial set screws to avoid them slipping. This was also used by other manufacturers and makes a huge saving in unsprung weight (vs even a pressed steel drum). |
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coracle
United Kingdom
1940 Posts |
Posted - 20/08/2023 : 20:47:48
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Westbury
United Kingdom
2010 Posts |
Posted - 20/08/2023 : 21:00:12
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Thanks, Nigel.
I’m pretty sure these drums were made by Holden and Hunt and were a one piece drum, i.e.. no liner. They were also quite heavy which had the benefit of being very effective, I believe.
Chris |
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DK6780
United Kingdom
249 Posts |
Posted - 20/08/2023 : 21:41:52
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So very similar to these KN drums from a previous topic:
The rib towards the open side of the drum will go someway towards stopping it from dishing under heavy use, so may be more for that purpose than cooling. |
Edited by - DK6780 on 20/08/2023 21:46:16 |
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Westbury
United Kingdom
2010 Posts |
Posted - 20/08/2023 : 23:42:54
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Hello, Duncan.
The KN drums were 13” and Q drums 12” otherwise identical. (Same maker)
Chris
Note:- original drums were not supplied with the lightening holes! |
Edited by - Westbury on 20/08/2023 23:50:11 |
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Topic |
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Q Type Brake Drums
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