I think highspec do a four pot caliper with a hand brake and I was going to try to use them.
Ihavn't spoke to Hispec as yet but the caliper looks like a m16 repacement.
I will look with interest at developments
. Regards Kipper.
I'm involved in a project that will see the front end (almost) of a Mondeo in a mid-engined car. This project is not a one off, but is intended
as a prototype of a new kit.
The project will use the Mondeo front uprights complete with brakes, and the question of adding a handbrake arises.
These seem entirely suitable, and there is a version that can be used with the 24mm thick Mondeo discs. The problem is, how to fit them?
http://www.hispecbrake.co.uk/calipers/sva_spot.htm
Hi Spec's answer is to make up brackets. But what will these brackets be fitted to, on the upright? Might it be possible to weld additional lugs
to the upright (I would get a specialist to do this) or is there another solution?
Cost, as most times on this forum, is an issue, BTW
Thanks in anticipation
John
well i am doing the same sort of thing with mondeo suspension for my saab 96 my plan is to leave the original calipers on the rear, obviously rebuilt
but they are meant to be pretty good and pads disks etc are cheap.
To get around the handbrake issues i will be fitting saab 900/99 front calipers to my front suspension. These models of saab had the handbrake acting
on the front. I think its the classic 900 model tho not the later 90's one.
Not sure if this is a valid answer for your problem tho.
You will never be confident enough to weld anything to an upright because you just don't know the alloy of the upright's metal.
I would never weld anything to an unknown metal type part.
quote:
Originally posted by Echidna
You will never be confident enough to weld anything to an upright because you just don't know the alloy of the upright's metal.
I would never weld anything to an unknown metal type part.
quote:
Originally posted by trogdor
well i am doing the same sort of thing with mondeo suspension for my saab 96 my plan is to leave the original calipers on the rear, obviously rebuilt but they are meant to be pretty good and pads disks etc are cheap.
To get around the handbrake issues i will be fitting saab 900/99 front calipers to my front suspension. These models of saab had the handbrake acting on the front. I think its the classic 900 model tho not the later 90's one.
Not sure if this is a valid answer for your problem tho.
I'm not familiar with the Mondeo uprights, but are there any bolts already on them, or spare bolt holes, that you could use to fix a custom bracket to suit the handbrake caliper?
I have the same problem with the three wheeler I am planning.
I think highspec do a four pot caliper with a hand brake and I was going to try to use them.
Ihavn't spoke to Hispec as yet but the caliper looks like a m16 repacement.
I will look with interest at developments.
Regards Kipper.
If I remember correctly there was a kit car which modified the front calipers of the donor for the rear by dumping the great thick vented disks and
putting in a 10mm solid disk. Then there were 2 * 5mm plates that fitted between pads and the caliper pistons (same shape as the pads with a bit that
stuck out of the back of the caliper for the actuating mechanism) which had some spring mechanism to allow them to separate, and were basically pulled
together by the handbrake cables. This ought to be possible to recreate as you probably don't need 24mm vented disks at the back(unless
you're running on F1 tyres). It may have been on a sylva?
I hope this helps in some way!
Regards
Hugh
quote:
Originally posted by Humbug
I'm not familiar with the Mondeo uprights, but are there any bolts already on them, or spare bolt holes, that you could use to fix a custom bracket to suit the handbrake caliper?
There was a while ago a good 'cheat' for handbrakes on rally cars.
A pair of 6mm nuts were welded to each pad's backplate and the cable fed through them to 'operate' the handbrake. I say
'operate' because there was also a hydraulic handbrake which was what really did the work.
This was more of a cheat to get through scrutineering but perhaps it could be improved enough to work purely with the cables?
If you're starting with a complete Mondeo donor (with rear discs) could the rear calipers, discs and therefore handbrake mechanism be transfered
to sit on the front uprights which are now on the rear?
Depending on what you're planning for front uprights, you might even be able to complete the swap by re-using the fron brake calipers and discs
on the front of the car.
Alternatively, would a hydraulic handbrake with locking mechanism b suitable (and SVA'able)?
Or even a transmission lock of some kind?
If you're starting with a complete Mondeo donor (with rear discs) could the rear calipers, discs and therefore handbrake mechanism be transfered
to sit on the front uprights which are now on the rear?
Depending on what you're planning for front uprights, you might even be able to complete the swap by re-using the fron brake calipers and discs
on the front of the car.
Alternatively, would a hydraulic handbrake with locking mechanism b suitable (and SVA'able)?
Or even a transmission lock of some kind?
quote:
Originally posted by nick205
If you're starting with a complete Mondeo donor (with rear discs) could the rear calipers, discs and therefore handbrake mechanism be transfered to sit on the front uprights which are now on the rear?
Depending on what you're planning for front uprights, you might even be able to complete the swap by re-using the fron brake calipers and discs on the front of the car.
Never really looked that closley, but it doesn't surprise me.
Also never understood why car makers have used drums over discs for so long. Surely the complete drum set-up must cost more than a caliper and disc
to produce....?
you can use a hydraulic handbrake but it has to be separate to the main braking system. Not sure if that means extra calipers or just lines tho.
quote:
Originally posted by nick205
Also never understood why car makers have used drums over discs for so long. Surely the complete drum set-up must cost more than a caliper and disc to produce....?
quote:
Originally posted by MikeCapon
There was a while ago a good 'cheat' for handbrakes on rally cars.
A pair of 6mm nuts were welded to each pad's backplate and the cable fed through them to 'operate' the handbrake. I say 'operate' because there was also a hydraulic handbrake which was what really did the work.
This was more of a cheat to get through scrutineering but perhaps it could be improved enough to work purely with the cables?
The riot uses a ford fiesta front hub at the rear, the standard caliper is then replaced with a sierra rear disk handbreak caliper, it may be possible
to do something similiar perhaps, I can supply the dimensions across the sliding caliper bolt holes if you need them.
Cheers
David
Mondeo uprights are SG cast iron ---- weld brackets for brakes to them to them only if you have a death wish.
With a Midi you have roughly a 55%-45% front rear distribution under braking --- so you need calipers larger than you normally find on the rear
of a fwd car like Mondeo or even the rwd Sierra --- I would suggest MGTF calipers which have 40 mm pistons (most medium tintops have 33mm pistons
on the rear).
At the front the don't go any bigger than Sierra calipers which have approx dia 50 mm pistons.
[Edited on 14/10/08 by britishtrident]
RAther than go to the expense of adding these, I would investigate how easy it would be to mount something like a golf rear caliper to the mondeo uprights...
quote:
Originally posted by nick205
Never really looked that closley, but it doesn't surprise me.
Also never understood why car makers have used drums over discs for so long. Surely the complete drum set-up must cost more than a caliper and disc to produce....?