rotors se5a

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BRECH65
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rotors se5a

Post by BRECH65 » Thu Jul 13, 2017 2:10 pm

hello, if someone can help
I would like to change the front rotors and calipers of my 1974 se5a; what options do I have if I want to upgrade them ? could I use rotors and calipers fom a donor car, even a recent one ? I read somewhere the Scimi is using Jaguar calipers ? what about the discs ? will discs and calipers made for a TR6 would fit ?
thanks for your help

eric



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greeny
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Re: rotors se5a

Post by greeny » Thu Jul 13, 2017 2:35 pm

5as have tr6 disks on them.
Upgrade qrg have willwood vented disk kits but they are around £600 (very ish)


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Re: rotors se5a

Post by peter freeman » Thu Jul 13, 2017 3:17 pm

The 5's brakes are better than the 6's brakes and I think are well up to the job unless you want to sprint with the car. The callipers are also used on the P6 Rovers as well as others.



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Re: rotors se5a

Post by Mr Bridger » Thu Jul 13, 2017 3:18 pm

Hello Eric.

I've used Mintex pads with standard discs on a couple of classic cars and the improvement in stopping ability has been significant. I believe the 1144 compound is best for road use. I have no reason to believe that it would not be the same with a Scimitar, and I intend to find out when my pads need changing next. I recommend trying this first and seeing how you get on before going to the hassle & expense of changing the type of calipers & discs used.

However, I am afraid I cannot tell you what other cars use the same pads as a 5a to cross reference the Mintex fitment chart. Anyone know? :?:

In my opinion, and I know this is not shared by some, Green Stuff pads should be avoided. Nothing actually wrong with them, it is just that they really do not provide any better braking performance than the standard type, they just cost more. :w


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Re: rotors se5a

Post by GavinR » Mon Jul 17, 2017 2:11 pm

Mintex pads are MGB522
I use 1155 compound on my SE5a for rallies, but I would agree 1144 is fine for normal road use

The same Girling 3 pot calipers were also used on Aston Martin V8's up to around 1982 !

Thanks


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rotors se5a

Post by Propshaft » Sat Aug 12, 2017 7:40 am

rotors:
be aware NOT to use TR6 rotors as the outer bearings are smaller than the SE5as.
The outer bearings are equal VW Golf ;-)

cheers!
Michael



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rotors se5a

Post by scimjim » Sat Aug 12, 2017 8:07 am

There are two sizes of outer bearings on SE5a.


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rotors se5a

Post by MrGoldtop1960 » Sat Aug 12, 2017 9:53 am

scimjim wrote:
Sat Aug 12, 2017 8:07 am
There are two sizes of outer bearings on SE5a.
Yep, two sizes. I've recently changed my fronts bearings and when I contacted GW to purchase them, Graham mentioned that they changed around '73. As mine is an early '73, he took a punt on the earlier type and luckily they fitted :D
But being Reliant, you could have either type fitted depending on build date and if the upright/stub axle has been changed during its life.....
Cheers
Kev


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rotors se5a

Post by scimjim » Sat Aug 12, 2017 10:22 am

And "rotors" are discs, so don't have bearings :-)


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Current: SE5 (8Ball), TI SS1 (snotty), 1600 SS1 (G97), 1600 SS1 (C686CCR), 2.5TD SE5a (diesel 5a), 6 x random other SS1s.
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1300 SS1 (Number One) & Sarah's coupe.
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rotors se5a

Post by philhoward » Sat Aug 12, 2017 10:27 am

Plus given the relevant ages, a Golf will have Scimitar bearings (not the other way round) ;)


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rotors se5a

Post by gtcse8 » Sat Aug 12, 2017 10:36 am

Standard SE5/a calipers ARE Jaguar/Aston Martin as well as a few others.

The discs Are Tr4/5/6 and are larger than SE6a, but they do benefit from Drilling and Grooving to cool and clean the pads.

Standard pads are usually good for spirited driving.

I keep Drilled/Grooved discs in stock at a better price than most.

As Jim says the Discs only Bolt to the Hub, so it`s the hub and stub that govern which size of bearing is used.


See the Beast on youtube under" RELIANT SCIMITAR CONVERSION LOL.,Se5,Se5a, Se6a, Two Se6b`s, GTC, SST 1800Ti & not a lot of sense

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rotors se5a

Post by scimjim » Sat Aug 12, 2017 11:00 am

I've been looking at the options for vented on 8Ball - off the shelf with minor mods if possible. The Triumph sites are okay for disc options but some more investigation required on calipers. Have you ever made spacers for the standard calipers Mark?


Jim King

Current: SE5 (8Ball), TI SS1 (snotty), 1600 SS1 (G97), 1600 SS1 (C686CCR), 2.5TD SE5a (diesel 5a), 6 x random other SS1s.
Previous: SE5, 3 x SE5a, 2 x SE6a, 3 x SE6b, GTC, 2.9i GTC, 3 x 1600 SS1, 1300 SS1, Mk1 Ti Sabre, Mk1.5 CVH Sabre
Chief mechanic for: 1400 K series SS1 (Megan3), 1400 CVH EFi SS1 (Grawpy), Sabre/MX5 auto (The Flying Broomstick),
1300 SS1 (Number One) & Sarah's coupe.
CURE THE FAULT - NOT THE SYMPTOMS

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rotors se5a

Post by gtcse8 » Sat Aug 12, 2017 12:31 pm

Yes I have Jim

Hardest part is machining the seal grooves, but I used Nitrile O rings as the square cut washers are hard to source as standard.


See the Beast on youtube under" RELIANT SCIMITAR CONVERSION LOL.,Se5,Se5a, Se6a, Two Se6b`s, GTC, SST 1800Ti & not a lot of sense

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rotors se5a

Post by tomfollows » Mon Aug 14, 2017 9:56 pm

The aston martin DBS caliper is similar casting, but as the AM disk is thicker (and also possibly a larger dia disk) so i think there was a spacer between the caliper halves. Unfortunately there are not many DBS's in my local scrapyard...
Tom


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