[Roadsters] --> RE: --> Who makes rear brake disk kits? Drum brake pad epoxy? SRL311

[RWM]

Nolan,

I can't provide a researched view, other than "depends on driving 
requirements and performance expectations" but in general carbon-based 
materials grab as well as sintered metal embedded brakes and have better 
fade resistance and are easier on the disc surface.  More an issue up 
front than at the rear of the roadster.

Turner Motorsports and a Nissan board compare them here:

http://www.turnermotorsport.com/t-metal-masters-or-ultimates.aspx

http://forums.maxima.org/general-maxima-discussion/68902-porterfield-r4s-vs-axxis-metal-master.html

- Bob


On 9/2/2012 3:41 PM, Nolan wrote:
> Good morning Bob,
> Porterfield is a good suggestion I hadn't considered. Thank you.
> (Putting on my old folks voice)......I remember putting the brakes on hard from 7000 rpm in 5th down to 40 mph. The car would shoot sparks out the front from the metal master pads, the disks would glow and the roadster would stay straight. I have wondered if and assumed that friction material has improved in 25 years.
>
> Do you think the new Porterfield's grab as good as an older pad with a high metal content in the blend? Apparently there is still a metal master pad on the market. I am not sure if it would be the same blend as 25 years ago (less asbestos?)
>
> Best regards,
> Nolan
>   
>
> -----Original Message-----
> From: RWM [mailto:RWM at RWMann.com]
> Sent: Sunday, September 02, 2012 4:59 AM
> To: Nolan
> Cc: datsun-roadsters at autox.team.net
> Subject: Re: --> [Roadsters] Who makes rear brake disk kits? Drum brake pad epoxy? SRL311
>
> 450 degrees F is nowhere close to the heat resistance needed, even for the rear brakes (assuming they are properly adjusted and work).
>
> Trying to rebond friction surfaces is a recipe for getting a separated liner jammed between drum and shoe at the most inopportune moment, an opportunity to find out how well **one** of the rear brakes can work.
>
> As you ponder the disk replacement issue, get the drum brake pads rebuilt.  In my experience, Porterfield does a nice job in a variety of friction surface specs.
>
> - Bob Mann, '68 2000 Solex, Porterfield R4S friction surfaces
>
>
> On 9/1/2012 11:21 PM, Nolan wrote:
>> Hello friends,
>>
>> We are making progress on the roadster but today feels a little like
>> one step forward and two steps back.
>>
>> Nolie had done a very nice job of removing, cleaning and inspecting
>> all of the rear brakes. While we were putting everything back together
>> we noticed that the bond between the shoe and liner was weak.
>>
>>    
>>
>> We now have two paths. Clean and re-glue the pads. I have found this
>> in small enough containers to be the right scale:
>> http://news.thomasnet.com/fullstory/Bonding-Adhesive-holds-up-to-450-F
>> -48891
>> 2 Does anyone have better pad bonder suggestions?
>>
>>    
>>
>> Or second path, step up to the rear disc swap.
>>
>> For the rear brake swap I have found this guide:
>>
>> http://www.311s.org/pmwiki-311/pmwiki.php?n=TechSection.200sxRearBrake
>> . Are there others examples on the net?
>>
>> Does anyone sell a kit to do the rear brake swap that will fit with 14"
>> wheels?
>>
>>    
>>
>> Is this rear brake swap in proportion with the Volvo 4 piston front
>> brake upgrade?
>>
>>    
>>
>> What master cylinder is best with the Volvo swap in the front and
>> 200SX brakes in the rear?
>>
>>    
>>
>> Thank you,
>>
>> Nolan