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 1750 Posts Member #: 10190 Post Whore belgium |
4th Jun, 2013 at 12:35:37pm
Hi. I have realised that i have a huge amount of 8, 4 setups laying around that i never use. Now i was wondering. .. instead of buying a full 8, 4 to 7, 5 (12 to 10) conversion set. Would it be possible to just machine tje 8.4 disc down and stick on a 7, 5 inch calliper? Or even use a 8, 4 calliper. If yes. How do ya do it. Or is it just not worth the money? you can do anything if you set your mind to it...
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 3673 Posts Member #: 9300 Post Whore Quarry Bonk |
4th Jun, 2013 at 12:42:47pm
Easier to just buy a 12 to 10 kit than piss about. At best you'll be able to run wellers (only just) with some grinding down of the caliper (not recommended) and with some 1" spacers on the front (also not recommended) On 26th Jan, 2012 Tom Fenton said:
ring problems are down to wear or abuse but although annoying it isn't a show stopper On 5th Aug, 2014 madmk1 said:
Shit the bed! I had snapped the end of my shaft off!! 17.213 @ 71mph, 64bhp n/a (Old Engine) |
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87 Posts Member #: 10248 Advanced Member Hertfordshire |
4th Jun, 2013 at 04:17:52pm
I was contemplating a change down kit a while back but no money to do so |
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1750 Posts Member #: 10190 Post Whore belgium |
4th Jun, 2013 at 04:34:58pm
Wel it was eighter for banded steels or for 2peace aluminium wheels. I tought maybe i just buy a 4pot caliper for 7, 5 disc brakes and machine a set of the 8, 4's but if it is so much of a hassle. .. you can do anything if you set your mind to it...
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 7260 Posts Member #: 1268 The Boom Boom speaker Police! Essex |
4th Jun, 2013 at 04:44:59pm
Nope, you can do exactly as above. Most of the alloy 4 pots are designed for machined down 8.4" disks.
In the 13's at last!.. Just |
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 520 Posts Member #: 189 Post Whore Norway |
4th Jun, 2013 at 05:55:22pm
I seem to remember that you could use fiesta calipers on 7,9 discs, but have not tryed this myself www.shag.no |
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3673 Posts Member #: 9300 Post Whore Quarry Bonk |
4th Jun, 2013 at 06:19:21pm
I think nick had either machined or fiesta calipers? Could be wrong. On 26th Jan, 2012 Tom Fenton said:
ring problems are down to wear or abuse but although annoying it isn't a show stopper On 5th Aug, 2014 madmk1 said:
Shit the bed! I had snapped the end of my shaft off!! 17.213 @ 71mph, 64bhp n/a (Old Engine) |
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 4890 Posts Member #: 1775 Post Whore Chester |
4th Jun, 2013 at 06:47:07pm
I run fiesta calipers 7.9 solid discs (turned down 8.4) you need to use metro flanges and most 10" wheels fit. and splits easy peasy I run a supercharger and I don't care the TB is on the wrong side.
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4300 Posts Member #: 1321 Post Whore Wiltshire |
4th Jun, 2013 at 07:57:36pm
I bought a set of minispares alloy calipers and then just machined down the 8.4 inch solid disk. Jobs a goodun! On 7th Oct, 2010 5haneJ said:
yeah I gave it all a good prodding |
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1750 Posts Member #: 10190 Post Whore belgium |
4th Jun, 2013 at 08:11:09pm
I have cooper s calipers that need some revision. Maybe i use these on machined 8, 4s what would be best size? 7, 9 or 7, 5? I might have some others to but nothing fancy all single pot (non 4 pot) but do know for sure i have 9 big 8, 4 callipers. .. just took a look on tje space above the garage. you can do anything if you set your mind to it...
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42 Posts Member #: 10317 Member Basildon, Essex |
4th Jun, 2013 at 10:31:00pm
I've got Nick's old calipers now, they're machined 8.4's and fit under 10's without spacers.
Edited by Skortchio on 4th Jun, 2013. |
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1750 Posts Member #: 10190 Post Whore belgium |
5th Jun, 2013 at 06:16:11am
On 4th Jun, 2013 Skortchio said:
I've got Nick's old calipers now, they're machined 8.4's and fit under 10's without spacers. At least they do under the Revo's I have. The mounting bolts have been re located to bring the caliper closer to the hub and the outer edges are profiled to fit under the rim of the wheel. http://i1105.photobucket.com/albums/h352/S...ls/IMAG0736.jpg Yeah got a loon yesterday late and saw something like that on thz forum here. So went back to the garage and slipped a 8, 4 setup together without bolts so i could move it arround and noticed that if you slip the caliper as far as possible it needs only a few millimetres of machining. . But woul only go in the steel wheels. Not in the momo aluminium wheels. Nice pics by the way. I see why they work on the revos. They have that profile on the inner rim like the steel wheels i have. The momo is just flat inside. What size of disq are those now or just as big as possible? Edited by Rammie2000 on 5th Jun, 2013. you can do anything if you set your mind to it...
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 10020 Posts Member #: 1456 Mongo Barnsley, South Flatcapshire |
5th Jun, 2013 at 06:42:53am
Ask Mike what he MOT man said about his ground calipers.
If something is worth doing, it's worth doing half of. |
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 1414 Posts Member #: 9199 Post Whore Lancashire |
5th Jun, 2013 at 07:06:51am
beleive the link below may help if you want to go to fiesta calipers.
On 4th Jun, 2013 gr4h4m said:
I run fiesta calipers 7.9 solid discs (turned down 8.4) you need to use metro flanges and most 10" wheels fit. and splits easy peasy What the mind can conceive the mini can achieve
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7260 Posts Member #: 1268 The Boom Boom speaker Police! Essex |
5th Jun, 2013 at 07:06:51am
Are Mike's 8.4"!
In the 13's at last!.. Just |
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 16540 Posts Member #: 4241 King Gaycharger, butt plug dealer, Sheldon Cooper and a BAC but generally a niceish fella if you dont mind a northerner Rotherham, South Yorkshire |
5th Jun, 2013 at 07:13:47am
On 5th Jun, 2013 theoneeyedlizard said:
Are Mike's 8.4"! Yes. Hubs re-drilled, callipers ground and disks turned down to 7.5". MOT man didn't like the grinding...` On 11th Feb, 2015 robert said:
i tried putting soap on it , and heating it to brown , then slathered my new lube on it 
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10020 Posts Member #: 1456 Mongo Barnsley, South Flatcapshire |
5th Jun, 2013 at 07:18:46am
He put the 8.4's on his road car. The orange mini had 7.9" vented minisport brakes on it. To get his road car tested he had to half inch the setup off the orange one. If something is worth doing, it's worth doing half of. |
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7260 Posts Member #: 1268 The Boom Boom speaker Police! Essex |
5th Jun, 2013 at 07:55:48am
Did Carl do them? In the 13's at last!.. Just |
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42 Posts Member #: 10317 Member Basildon, Essex |
5th Jun, 2013 at 08:13:51am
On 5th Jun, 2013 Rammie2000 said:
Yeah got a loon yesterday late and saw something like that on thz forum here. So went back to the garage and slipped a 8, 4 setup together without bolts so i could move it arround and noticed that if you slip the caliper as far as possible it needs only a few millimetres of machining. . But woul only go in the steel wheels. Not in the momo aluminium wheels. Nice pics by the way. I see why they work on the revos. They have that profile on the inner rim like the steel wheels i have. The momo is just flat inside. What size of disq are those now or just as big as possible? Hey fella, You're correct in that the wheel choice may be a touch limited, mostly by offset more than shape but any space helps ! 
The discs are as big as fit, they actually come up about 7.85" if I remember. Although Nick gave me a set with the calipers that were 7.5" that he'd been using for some time, I have some new discs and thought why not use 'em. |
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1750 Posts Member #: 10190 Post Whore belgium |
5th Jun, 2013 at 12:02:49pm
So it sounds like possible but only with some wheels (the car does not need mot anymore since its older than 25 years now) will have a look in to it somewhat further the second i have the time. And have my mate who does the machine work for me over to have a look. Who knows we get it right some way... and if not... well i was not going to do anything with all those callipers and disc's annyway so might as wel experiment. Thanks for the links and advise guys. As usual a great help. you can do anything if you set your mind to it...
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1750 Posts Member #: 10190 Post Whore belgium |
19th Jul, 2013 at 05:19:15pm
Hi... my mate brought me some fiesta calipers a while ago but had the chanse to look at it today... they are bigger than the original 8, 4 calipers... think they are from a to young
you can do anything if you set your mind to it...
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1750 Posts Member #: 10190 Post Whore belgium |
19th Jul, 2013 at 05:24:27pm
Ow gr4h4m why metro flanges? you can do anything if you set your mind to it...
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4890 Posts Member #: 1775 Post Whore Chester |
19th Jul, 2013 at 05:40:07pm
It was for the spacing, and centralising the disc within the caliper iirc Edited by gr4h4m on 19th Jul, 2013. I run a supercharger and I don't care the TB is on the wrong side.
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 967 Posts Member #: 3228 Post Whore North of the Netherlands |
19th Jul, 2013 at 08:07:42pm
On 19th Jul, 2013 gr4h4m said:
It was for the spacing, and centralising the disc within the caliper iirc Indeed, the metro flanges are for offsetting the disk to outside. This is my set-up; worked a treat: 
Although must admit I am going to replace them with 7.5 set-up. Dazed and Confused.... |
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4890 Posts Member #: 1775 Post Whore Chester |
19th Jul, 2013 at 10:03:01pm
I have found the, excellent with the following setup.
I run a supercharger and I don't care the TB is on the wrong side.
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