[Fot] Aluminum rear brake drums

[TR4 Tony]

Yeah well .... Public transport and all that ! Happy Friday everyone

Sent from my iPhone

On 21 Jun 2013, at 16:16, Todd Redmond <alfetta95 at optonline.net> wrote:

> WOW is right!  And it was sent from an iPhone!   (small keyboard lots of
typing) Geez us
>
> Thanks Tony!
> Todd
>
>
> On Fri, Jun 21, 2013 at 8:17 AM, Tony Drews wrote:
>
>> Wow.  Just... wow.  What GREAT information.  I love this group!
>>
>> Tony D (the other Tony)
>>
>> At 02:36 AM 6/21/2013, TR4 Tony wrote:
>>> Todd
>>>
>>> Bastuck remanufactured these 9.055 inch drums based on the old 240z
pattern,
>>> but both the quality and machining is variable. The sell them specifically
to
>>> fit the TR hub pattern. You need to do a lot of work to these to make
them
>>> right, including the more obvious dimensional mods as the shoes don't sit
>>> nicely in them.
>>>
>>> Brembo used to similarly make a repro in 240z configuration. These were
ok.
>>> Same issues as above though.
>>>
>>> The best solution is to get old 240z drums and machine these up, but some
>>> caution on relining needed - the issue is the lining detaching so if your
guys
>>> get round this then fine, if not its a bad job.
>>>
>>> There are other alloy drums out there at the moment supplied by MOSS one
in 9
>>> inch and one for the 10 inch axle. These are mainly supplied through
>>> Racestorations and a sister company. I've tried all of these and the
quality
>>> is very poor and a big accident waiting if you use the 10 inch ones
>>> particularly. The aftersales service when I had a problem was disgraceful
so
>>> make your own judgement on that one.
>>>
>>> The only alloy drums I could recommend are the Typecast vintage replicas
which
>>> are supplied in 10 inch - these are proper cast and spun items and a
really
>>> good job. These guys are on the web as brakedum.com and in Leicester UK.
Next
>>> up would be old Datsun finned type.
>>>
>>> Also note that alloy drums are fragile - one good hit and they shatter -
>>> except the typecast ones which are made of a higher quality 'softer'
material.
>>> Not great for howling round on the loose.
>>>
>>> In terms of braking performance, the tests that I did a few years back on
a
>>> good sample of all the various drums on my (heavy) rally car showed up the
10
>>> inch steel drums as having the most stopping power metre by metre. The 9
inch
>>> alloy 240 z drums were close, but only because I'd toleranced them to a
set of
>>> shoes that Ted S sent me years back - they were on a trigger and the
whole
>>> shoe seated beautifully. Mintex M1144 shoes were also good and I used
those as
>>> the 'control'.
>>>
>>> Having said all that you really have to be at the outer edge before you
get
>>> any benefit over the standard steel drum when its properly vented,
>>> particularly on the 10 inch .... Even when too hot to touch. So for the
cost
>>> I'd go on a diet of costly fish food to lose the weight if it got that
>>> critical.
>>>
>>> Regards to all
>>>
>>> Tony
>>>
>>> Sent from my iPhone
>>>
>>> On 20 Jun 2013, at 12:38, "Bill Tobin" <william.tobin31 at verizon.net>
wrote:
>>>
>>>> Hi Todd, the quick answer is I don't think so.
>>>> There are a couple differences between the Z drums and Triumph drums. I
>>> think one of Kas' books explained them.
>>>> By what I hear, the finned aluminum drums are no longer available.
>>>> BTW, I recently bought a set of Z drums on e-bay and am planning on
fitting
>>> them to my TR6. I'll keep you posted.
>>>> Cheers, Bill
>>>> ----- Original Message ----- From: "Todd Redmond"
<alfetta95 at optonline.net>
>>>> To: <FOT at autox.team.net>
>>>> Sent: Wednesday, June 19, 2013 12:06 PM
>>>> Subject: [Fot] Aluminum rear brake drums
>>>>
>>>>
>>>>> Fot,
>>>>>
>>>>> Looking at buying a used set of Datsun 240z Aluminum finned rear brake
>>> drums. Found a pair.
>>>>> Might be a silly questions but can these be relined?
>>>>>
>>>>> Thanks
>>>>> Todd
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