Hi Guys,

Does anyone know where I can get some caliper brackets made? Ideally in Kent, London or Essex.....but I would be willing to look further.......for a reasonable price.

They need to fit Sierra front hubs and a pair of Merc (Brembo) 8 pots.

Thanks
Stuart
07590699582

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Originally posted by StuartBJ
... and a pair of Merc (Brembo) 8 pots.

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Sorry, dumb question......How do I attach pics from my archive?

Right click on the pic... select 'copy image address'.

Click on this Icon when your ready to insert the image. Then right click and 'paste' the image address into the box.

Computer magic does the rest...

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WOW thats massive

Thanks for the help, you learn something new every day.

Ha ha yeah....

But you could be refering to the image or calipers.

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Originally posted by StuartBJ
Merc (Brembo) 8 pots.

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Originally posted by scootz

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Originally posted by StuartBJ
... and a pair of Merc (Brembo) 8 pots.

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I agree with your statement...."build in lightness".....but the reason I have 8 pots are power and financial.

The car I`m building is an AGM WLR with a Merc V12 up front......therefore BIG weight and BIG Power upfront besides I got these calipes at a baragin price

Ohhhh S63AMG as a donor

I like it

Almost..... the engine is from an SL600, the brakes are from a SL55 AMG, tyhe wheels are from a Mercedes ML and the gear box is a Cosworth T5....so bits of ford sneaking in....and rightly so.

PPC did a feature on making calliper brackets a while back. They basically mocked up a bracket in MDF and then dropped it of to a machine shop to make it up. The metallic properties of the bracket will be important I think they used T6-7075 Ally which makes sence per the linky below.

linky

But best get advice on this.

- Jim

Flak monkey on here might be able to help - he makes stuff

No problem, I would be able to do the mock up.....but need a good machine shop to drop it off too ??

Hmm.... 2024 should surfice, 6063 is to malable (used in elise chassis as I recall)... 7050/7075 (as used on wing leading edges is VERY strong but can fracture over time......no prizes for guessing my occupation.

Thanks Mook, I will PM him

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Originally posted by StuartBJ
No problem, I would be able to do the mock up.....but need a good machine shop to drop it off too ??

Hmm.... 2024 should surfice, 6063 is to malable (used in elise chassis as I recall)... 7050/7075 (as used on wing leading edges is VERY strong but can fracture over time......no prizes for guessing my occupation.

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Oh no you caught me out ha ha.

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Originally posted by StuartBJ
No problem, I would be able to do the mock up.....but need a good machine shop to drop it off too ??

Hmm.... 2024 should surfice, 6063 is to malable (used in elise chassis as I recall)... 7050/7075 (as used on wing leading edges is VERY strong but can fracture over time......no prizes for guessing my occupation.

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As previously stated you may be over-egging the pudding.
Some time ago I replaced the standard GT6 calipers on my car with some stonking AP four pots. I had ignored advice from AP themselves that the piston area would be too great.
They were mighty powerful but somewhat upset the balance.
There was little difference, pedal pressure wise, between reasonable retardation and locking up.
In anything like a full-on stop it was almost impossible not to lock up.
Two such occurrences ( one of which could have been terminal ) during a recent driveout had convinced me.
The piston area in your eight pots will be massive. Unless your car weighs three tons you might live to regret your upgrade.
Even with adjustable brake balance the problem might not go away.
What is the weight of your WLR?

I made the brackets myself from T6 and had no problems with them.

Geoff.

[Edited on 22/7/10 by SPYDER]

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Originally posted by StuartBJ
No problem, I would be able to do the mock up.....but need a good machine shop to drop it off too ??

Hmm.... 2024 should surfice, 6063 is to malable (used in elise chassis as I recall)... 7050/7075 (as used on wing leading edges is VERY strong but can fracture over time......no prizes for guessing my occupation.

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Originally posted by Alan B

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Originally posted by StuartBJ
No problem, I would be able to do the mock up.....but need a good machine shop to drop it off too ??

Hmm.... 2024 should surfice, 6063 is to malable (used in elise chassis as I recall)... 7050/7075 (as used on wing leading edges is VERY strong but can fracture over time......no prizes for guessing my occupation.

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Erm......Ali salesman/rep., Aerospace machinist/stress/structures/design/engineer?

Anywhere close?

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Ha ha....

I`m a materials engineer but I seem to be doing more designing than materials science these days.

So....not quite the mission I expected, which was a nice surprise.

When assembling the disc, caliper and hub it was almost impossible to work out the distance (height) from the caliper mounting holes in relation to the hub mounting holes ....but by eye they are alomst in line....(worst case is I have to add a washer or two on the caliper mounting holes.

Here is a rough sketch


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Don't guess, make a rough prototype yourself first in say 22mm MDF with spacers/washers to simulate the required thickness and do a trial fit.

PS you are missing one dimension in your sketch.

Cheers

Fred W B

Couldnt agree more. I have started the mock up already. I`m sure it will throw up a problem or two..... but then again, thats the fun

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Originally posted by Fred W B
Don't guess, make a rough prototype yourself first in say 22mm MDF with spacers/washers to simulate the required thickness and do a trial fit.

PS you are missing one dimension in your sketch.

Cheers

Fred W B

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Ha ha ....I feel like I`m at work being questioned by our QA department....LOL

....the holes are both M12