'Blueprints' for brembo adapter mounts

[Nathan]

I now think it would be a lot easier to go this way.

I'm assuming they are for mounting to standard HGT hub, but with 305 or standard disc size?

Anyone got the blueprints so I can machine some adapters.

 

[Ash]

i am the only person in the country with brembos on a bravo without a coupe turbo engine conversion! nico may have finished his now tho! the 2.0 adaptor hasnt been made nico has designed one but it requires custom discs at a cost of £400 then you stil have to buy the calipers pads and pipes lol

Im Driven to Earn, and I Earn to Drive......

 

[Nathan]

You may have read the problems i'd encounter then, spoke to Fiat again, and they know nothing about the ABS sensor, but I get the feeling I might be better off going to the local Butcher and asking him

 

[Ash]

yeah read about your problems it didnt take me long to knock up the brackets really. to be honest maby just over a day with all the mucking around measuring things and cutting them out i ended welding two different brackets i made together to get it right. you will need 10-15mm spacers to clear your wheels too. i found eibach make the best quality spacres and supply them with good longer bolts! if you have alloys that need wobbley bolts! give up now!

Im Driven to Earn, and I Earn to Drive......

 

[Nathan]

Cheers fella, i'll put the spacers on my list

Lucky not to have wobblies

 

[Ash]

the best way to do it is to get some 3-4mm tin and cut the shape out you want then make the holes in it to bolt it to your hub. once it has been bolted to the hub put the disc on and hold the caliper in the correct position on the disc to mark the holes on the plate for the caliper. once that is done drill the caliper holes and test it all lignes up useing washers to space it correctly. once you have got it ligned up correctly measure the thickmess of the washers and thats the thickness you need for the inner part of the plate then take a thick piece of metal about 8mm steel and transfer the design from the bit of tim on to it and cut out. then you need to cut the second part of the bracket out to the shape of the caliper then weld it to the first

the second part is the red bit in the pic then they need bolting together and welding.

Im Driven to Earn, and I Earn to Drive......

 

[Anonymous]

Is that safe and secure, i mean welding two pieces of steel together to create a bracket that will be used to stop the car and put under excessive forces?

Joske

 

[Nathan]

Much appreciated fella, picture helps me aswell. What size discs do you use? the larger coupe 305's??

 

[Ash]

of course it is! its the only way it can be done!!! unless you have a 3axis mill!! welding is basically melting two pieces of metal together and adding some more metal of the same kind to fill the gap! a line of weld is the same as a bit of steel its steel!!! the brackets dont even need to be welded together really i just did it for extra piece f mind!

look at it this way i can gurantee you that fiat bolts holding the calipers will berak before the bracket does!


yes m8 they are the 305mm diameter coupe discs to be honest it would be better if they were a bit thinner to aid clearance on the inner wishbone but there is about 3mm so its not fouling may be better on a hgt setup as its more similar to the coupe.

im gonna be working on the car tomorrow so if you want any wierd aquard angle pictures taken then say tonight and ill do my best for you

i was looking for a picture of the finished bracket but i can only seem to find ones from when i was doing the mock up!

Im Driven to Earn, and I Earn to Drive......

 

[MYHLX]

Ash, look, wobbly bolts and 325's (below)!! All you do is use the existing collars that come with the wobbly bolts and replace them with 8.8HT cap-head allen bolts. Job done.

Welding can have an effect on the strength of the material and in some cases (usually small items) the excessive heat produced can effectively harden the material making it more brittle. I doubt this is the case with Ash's car though, as he seems to be getting on fine with them.
I would have less faith in the Fiat hub mounting lugs Ash, I have been looking into getting mine welded to strengthen them, but worry about the excessive, heat as i mentioned; -possibly making them more brittle. My brakes are so unbelievably awesome (about the closest I can come to describing them) I worry that if I were ever to do a full emergency stop with 4 passengers and a full tank of fuel that the forces being transferred through those two lugs really doesn't bear thinking about!!

For your benefit Nathan, these are on my 1.8HLX. My brackets are forged billet alloy items, produced on a CNC milling machine (cited by ash as the other method of producing brackets). My original thread is in the search somewhere, but ended up being locked for various reasons. Hope they help you.

I really think that the brakes have a great aesthetic influence and will improve your stopping ability noticeably.

Ben.

 

[Ash]

cool with the bolt idea i will keep that in mind if i change my wheels! can you source them with a higher strength than 8.8?

as for the welding i think the heat issue is more f a problem with cast metal tbh. personally i wouldnt weld the fiat hub tommy k tried to with bad results! (didnt last a day lol)

as for your lugs i would just buy different ones with wider heads to spread the force more. i designed my bracket to fit tightly to the hub so that the breaking forees were transfered into the actuall hub and not the two little mounting eyes! all they do is hold the bracket in the correct position against the hub. although your brackets are very well machiened i would reccomend you modified them to transfer the force on the lugs to the actuall hub and caliper!

to be honest if they are wrong you will get vibration and the car is no heavier so techicnally!! there is no more force then before it is just that you are spreading it over a larger disc. also your car will skid a long time before the lugs should break lol.

i can get stupidly technical if you like about the proper design of break parts etc etc but i dont think its necessary if you are not having problems.

Im Driven to Earn, and I Earn to Drive......

 

[MYHLX]

They can be easily sourced with a higher strength than 8.8, I got a box of 25 and consider that with there being 4 of them they are probably up o the job

Looking at the Fiat hubs they are cast Ash, like I say I worry about welding them.

I see your point about your brackets, but you then rely on the principle of the bracket actually rotating to a certain degree in order to transfer load ‘into the hub' as you put it. This isn't really going to happen (or at least you would hope not!) at the two mounting points (i.e.) the lugs are fixed-and the bolts hold everything together!! There is no way that all your bolts do Ash is hold them onto the hub-I dare you to put plastic bolts in and test that theory lol! (Joke!) I too had considered shaping the bracket around the hub, but it made the CNC work more complex (not that that was a real issue with y brother writing the program) and I saw little benefit. I am confident in the bracket and bolt strength, probably the hub lugs to-just slight less so. The calipers are even M12 fitting, so the lugs on those are impressive!

I agree about your point with the skidding before shearing, its just that with all that weight transferred to the nose and on a very good bit of tarmac I imagine I could still get some fairly decent grip with my Toyo's.

I too can get stupidly technical about BRAKES (Get it right mon! ) but most of that was done in my previous thread that was locked lol!

Ben.

 

[Nathan]

Seriously guys, with the pictures and all the information I cannot thankyou enough, bloody marvelous!

Your pictures cover bout all the angles I need fella, i think they are everything i need, cheers pal

Nathan

 

[Dan Brown]

Yeah, between you guys and your pictures the whole thing makes loads more sense. Thanks!

Actually getting the work done though proves a shed load harder unless like you two, you're either handy with metal work or have a brother who is a CNC wizard.

Dan

 

[Dan Brown]

Oh and ash, are they brembo's off the coupe? Or some other ones?

And the AP's are designed for which car?

Cheers guys,

Dan

 

[Ash]

Ben where did you get your braided hoses from?

Im Driven to Earn, and I Earn to Drive......

 

[MYHLX]

@ Dan, Ash has Brembos from a Fiat Coupe 20VT, but bear in mind that Alfa GTV calipers are the same and items such as Focus RS, Cupra R and Alfa GTA models also have very similar if not identical calipers also.

MY calipers are available from AP in a 'blank lug' format where they can be machined and threaded-allowing wider fitment compatability. Mine were originally destined for an BMW E46 M3 Touring car, but came to me instead ! If you want my opinion the easiest calipers to fit would be radial mount items as this gives more room once the bracket is fitted. This is how Brembo allow for the different fitments in their 'Gran Tourismo' kits.

@ Ash, i got my hoses made by BSR Aerotek (www.bsr-aerotek.com). They are the best quality hoses you can get, totally custom, swaged fittings and a variety of zinc, stainless or alloy fittings (i got stainless). They are a really helpful bunch, usually make them within 2 days so you should receive them within four. Had custom ones made for dads bike and they are faultless to. Id rate them well above Goodridge or Earls, but they do cost-mine were about £70 delivered.

Ben.