Brake Conversion

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mbellinger
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Re: Brake Conversion

#1 Post by mbellinger »

trackerjack is the man to talk to about the Sierra conversion.

Sprintparts in Australia do a really nice kit that fits within the standard wheels, but with the shipping it works out expensive.

That's about it really. There are some other conversions but they all require machining of the hubs or change of wheels or both.
Martin.

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DavePoth
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Re: Brake Conversion

#2 Post by DavePoth »

As Mbellinger said, choice is limited. There are many more options if you go for bigger wheels, but with the standard alloys there isn't much room at all.
JonyPI

Re: Brake Conversion

#3 Post by JonyPI »

yup give trackjack (Jon jackson) a buzz, he can supply a bolt on kit i believe.
2Toledos

Re: Brake Conversion

#4 Post by 2Toledos »

JonyPI wrote:yup give trackjack (Jon jackson) a buzz, he can supply a bolt on kit i believe.
Jon should be able to sort you out with the 'important bits'; but, it's far from a 'bolt on kit' - You'll need to find your own calipers (Note: 50mm piston type are too big); then there's quite a bit of work to do on the vertical links, and getting it all to run true is no quick task. Definitely a labour of love - but, well worth the effort :jump4joy:
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trackerjack
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Re: Brake Conversion

#5 Post by trackerjack »

Well so much has been written and in all different places if you have half a mechanical brain its as easy to fit as falling off a log (some expensive bespoke kits are far from easy).
The upright is really hard to adapt............like cut an ear off it! (allow a whole 5 mins :) )
calipers just bolt on using existing holes on an adapter bracket.
Only 1 person has found that the disc ran too close to upright which is easily sorted.
NO machining is required for any part unless the original Sierra discs are used as opposed to the latest VW GTI ones which I open out to 66.5mm to match the Triumph hub and put bolt holes in.
I used the old disc and cut the brake part off (allow another 5 mins per disc) to use as a clamp.
I will PM you Cables with a full list of options cos loads of people have just had my brackets and done the rest themselves.
At the moment I am looking into using Puma and KA vented calipers as they are by far very very easy to find in scrappy yards.
track action maniac.

The lunatic is out................heres Jonny!
triple tango

Re: Brake Conversion

#6 Post by triple tango »

It really is so easy to fit. Adaptor bracket fitted very well.

I tried the Puma/Ka vented calipers but struggled to find some with a detachable mounting bracket, all the Ka's I looked at had the mounting bracket cast as part of the hub. I ended up using Mk5/6 Escort calipers.
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trackerjack
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Re: Brake Conversion

#7 Post by trackerjack »

Yes its got harder with modern cars cos Fords fit what they like, for instance our local scrappy has several KA's and some have 257mm discs (too big) and some have solid discs, some have the 239 mm vented and these are our target MK3 Fiestas with the more potent engines have the correct ones as does the Puma the carrier that is on these can use either the Sierra/XR3I caliper or the one it comes with.....................but the brake pads are not interchangable due to a slight difference (I will post some pictures soon on another thread which predates this one).
I know it all sounds difficult it isnt really, the fact is that all dollies are the same in the front brake department, Triumphs merely bolted a whopping servo in to disguise the rubbish stoppers that were fine for a little 1300 but not good for a 120 mph pocket rocket.
Fords use bigger brakes as the car and performance increases (as it should be).
Be patient cables I want to do a definative list of possibles to help.
track action maniac.

The lunatic is out................heres Jonny!
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DavePoth
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Re: Brake Conversion

#8 Post by DavePoth »

trackerjack wrote:Yes its got harder with modern cars cos Fords fit what they like, for instance our local scrappy has several KA's and some have 257mm discs (too big) and some have solid discs, some have the 239 mm vented and these are our target MK3 Fiestas with the more potent engines have the correct ones as does the Puma the carrier that is on these can use either the Sierra/XR3I caliper or the one it comes with.....................but the brake pads are not interchangable due to a slight difference (I will post some pictures soon on another thread which predates this one).
I know it all sounds difficult it isnt really, the fact is that all dollies are the same in the front brake department, Triumphs merely bolted a whopping servo in to disguise the rubbish stoppers that were fine for a little 1300 but not good for a 120 mph pocket rocket.
Fords use bigger brakes as the car and performance increases (as it should be).
Be patient cables I want to do a definative list of possibles to help.
Have you looked at the Mk4 fiesta (like mine)? It shares the underpinnings with the Ka, Puma and Mk3 so should be a possible source.
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trackerjack
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Re: Brake Conversion

#9 Post by trackerjack »

Hi Dave
Yes you are right it is your MK 4 that has these brakes on the higher spec ones, full marks go to the top of the class 8)

As Chris rightly points out the XR4 and Granada came with bigger brakes which will not fit standard wheels, but if uyou have my kit fitted (original Sierra discs only) you can fit the bigger brakes and go up to 14" rims and beyond.
track action maniac.

The lunatic is out................heres Jonny!
scottie1000

Re: Brake Conversion

#10 Post by scottie1000 »

What age of golf gti discs do you use and do you still do the mounts for calipers using fiesta calipers or ka/puma :bluewave:
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zombeh
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Re: Brake Conversion

#11 Post by zombeh »

acording to the information I was given on here when I did mine

mk2 gti 239mm vented discs (up to ~88).

Brembo discs part number 09.4765.14

Available on ebay and similar for about £30 for the pair
jeroensprint

Re: Brake Conversion

#12 Post by jeroensprint »

Hello,

I'm driving 40.000 km a year with dolomites and have a very simple brake conversion. Somebody must have done it before. Fit an extra pair of standard calipers. Feed the second one trought the bleeding screw hole of the original one. I have two Dolomites running with this system and it works fine. You only have to use EBC pads. Standard pads will burn after heavy braking. On one car i have std. discs and another ST vented and fitted spacers between the calipers. Every year i take one of these cars with caravan to Italy on holliday and no problems with fading in the mountaints. You can use a std. brake master but then you have to push the pedal a bit further before braking. It is simple to get a "normal" brake feeling. Weld the hole in the pedal and drill another half an inch higher and your "brake feeling" is ok. The better option what i use on these cars is an brake master of a Jaguar xj6. The calipers of the Jaguar have 4 pistons which are the same size as the dolomite's so this is the perfect to fit.

Hope you can do something with this info.

Jeroen Rothman Holland
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DavePoth
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Re: Brake Conversion

#13 Post by DavePoth »

I was speaking to a guy who has the twin caliper conversion yesterday. He said he used standard pads in one of the calipers each side, and full race pads in the other. That way the brakes worked regardless of how hot they got.
jeroensprint

Re: Brake Conversion

#14 Post by jeroensprint »

There are many makes of std brakepads and it maybe can work with the delphi or qh brakepads. Mine were at the time makeless in white boxes so i think of inferiour quality. EBC works fine and are a bit soft so the disk wear is less.

If you want to use very good heat resistant grease in you frontwheel bearings use silcolene. I don't know how the availiability is in GB but in Holland its availiable at motor/scootershops. This grease is syntetic grease and is red. It is very sticky and after washing you hands you can still feel it a bit. This grease will not leave you bearings and they last longer. On one Dolomite i have rims with a different offset so the car is hanging more on the bearings but since i use the silcolene i don't have to adjust or replace them so often. It is also very usable in the 1850 rearwheelbearings.
terry123

Re: Brake Conversion

#15 Post by terry123 »

hi jon (trakerjack)sent you 3 emails but they seem to be stuk in my outbox could you please let me know if youve received them
thanks terry
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