Kadett C Brakes

[DPM]

What upgrade options are available for the Kadett c, what brakes are you Kadett owners using?

Will the brakes from a Manta bolt straight on?

[mamakevf]

What upgrade options are available for the Kadett c, what brakes are you Kadett owners using?

Will the brakes from a Manta bolt straight on?

Manta brakes will bolt straight on . Best ones to go for are the 246mm vented discs and calipers as these will fit under 13" wheels, any bigger and you'll have to change your wheels .

[mayhem]

combination of manta and early astra mk2 calipers, so you can run vented record 2.2 disks.
golf mk2 brakes is also possible, but i dont remember what to adjust to make them fit

[Dod]

What size wheel do you want to run?

[DPM]

13 " wheels

[HSRchevette]

i put calibra 16v calipers and 1990 audi 80 2.0e disks redrilled engeerin firm will do it
i have chevette hs wheels which are 13" there is 10mm to spare

[Dod]

Nice one!! The calipars fitted then Liam?

[HSRchevette]

yes sure did dod perfect will stop real quick

[Dod]

:thumbup:

[DPM]

i put calibra 16v calipers and 1990 audi 80 2.0e disks redrilled engeerin firm will do it
i have chevette hs wheels which are 13" there is 10mm to spare

Why use Audi discs, will any opel discs fit or any others for that matter with out modifying? And what is actually involved in modifying them?

[HSRchevette]

you gotta make centre hole bigger and redrill the holes for da studs da ofset is where you'll get caught so must go wit them disks i think anyways it cost 80 for two new disks and 50 to mod them was a bit pricy but its done right

[charlie]

would think it is better using unmodified parts, easier to replace if you have to with off the shelf bits.

[DPM]

would think it is better using unmodified parts, easier to replace if you have to with off the shelf bits.

Thats exactally what i was thinking myself

[mamakevf]

I use unmodified parts, ie carlton 2.2 discs(246mm vented) which bolt straight on to the kadett hubs no probs at all and you should be able to use manta 2-pot calipers. Other calipers that bolt straight on are austin princess 4-pots and volvo 240 4-pots, but I would avoid the princess items as they are reported to be ****e.
http://totalopel.com/forum/picture.php?albumid=10&pictureid=133
http://totalopel.com/forum/picture.php?albumid=10&pictureid=136
http://totalopel.com/forum/picture.php?albumid=10&pictureid=134

[charlie]

Another item to be added to the list I suspect. :thumbup:

Have been thinking of the volvo option but hadn't an option for the disks.

[DPM]

I think i will be going down the Carlton / Volvo route myself, thanks for that:thumbup: must keep my eyes open for the calipers.

Also i have princess 4 pots on my Escort and to be honest i cannot fault them, much better that the origional M 16 calipers

[Dod]

PM RRV8 as he has a load of Carlton parts laying around.

[mamakevf]

Another item to be added to the list I suspect. :thumbup:

Have been thinking of the volvo option but hadn't an option for the disks.

Are you thinking of putting them on the GT? I was trying to put this set up on the Kadett B and discovered that the calipers do not bolt on as there is a different spacing between the bolt holes and I think that the Kadett B and the GT have the same brake/suspension set up, Although I could be wrong.
Worth getting a Kadett c/Manta B caliper to try first before you splash out.
You could also ask the guys on opelgt.com what brake upgrades they use,
come to think of it I should also ask myself.

[HSRchevette]

hey not sure if 13" wheels will go over the volvo stuff if that matters to u

[mamakevf]

hey not sure if 13" wheels will go over the volvo stuff if that matters to u

Thats another point, More research needed I think.

[charlie]

Already thinking of larger rims. They are needed.

Link here under bigger brakes for old Opels, specifically for the GT. http://www.opeltuners.com/

[DPM]

http://cgi.ebay.com/ebaymotors/1990-90-VOLVO-240-Caliper-A-1-CARDONE-19428_W0QQcmdZViewItemQQ_trksidZp3286Q2em63Q2el117 7QQhashZitem190278643562QQitemZ190278643562QQptZMo torsQ5fCarQ5fTruckQ5fPartsQ5fAccessories

Volvo calipers seem to be cheap in the US. Even taking the surcharge in to consideration.

I was told that 240 4 pots were the ones to go for it that correct?

[mamakevf]

Got some Volvo 4-pots and trial fitted them and found that this protrusion touched the disc on the inside.
http://totalopel.com/forum/picture.php?albumid=54&pictureid=322
There were 2 of them so I ground them down as they dont seem to be doing anything anyway.
http://totalopel.com/forum/picture.php?albumid=54&pictureid=323
Refitted and screwed the wheel back on and gave it a spin.
There was a slight intermittant scrubbing on the inside of the wheel so that meant 2 things, the wheel was slightly bent and obviously was touching the caliper so I lightlly ground down the upper and lower outer edges of the caliper and , hey presto, no scrubbing and fitted under 13" wheels.
I'll have to sort out some bigger discs to fill the calipers.
Also discovered that Kadett D,E, Cavalier brake pads fit by grinding the outer edges slightly. Opel pads were 100mm wide and volvo ones are 99mm.
http://totalopel.com/forum/picture.php?albumid=54&pictureid=321
She's tight, but I got it in.http://www.clipartof.com/images/emoticons/xsmall2/2437_silly_couple.gif (http://www.clipartof.com)
http://totalopel.com/forum/picture.php?albumid=54&pictureid=327
http://totalopel.com/forum/picture.php?albumid=54&pictureid=328
http://totalopel.com/forum/picture.php?albumid=54&pictureid=324
http://totalopel.com/forum/picture.php?albumid=54&pictureid=325
http://totalopel.com/forum/picture.php?albumid=54&pictureid=329

[charlie]

A few pics on the mod would be nice, if you have them.

[DPM]

Ya pictures please, im sure that a friend of mine had a set of Volvo 4 pots behind 13" rims on an old starlet rallycar as well but i think i recall that he had to grind something off as well

[mamakevf]

First pic shows the point that was binding on the disc when fitted.
http://totalopel.com/forum/picture.php?albumid=58&pictureid=346
So I ground it down and the same to the other one
http://totalopel.com/forum/picture.php?albumid=58&pictureid=347
Then with wheel fitted I found the top and bottom were binding on the wheel.
http://totalopel.com/forum/picture.php?albumid=58&pictureid=348
So i ground them down also.
http://totalopel.com/forum/picture.php?albumid=58&pictureid=349
http://totalopel.com/forum/picture.php?albumid=58&pictureid=350
http://totalopel.com/forum/picture.php?albumid=58&pictureid=351
Next was the pads. The one on the left is is unmodified.
http://totalopel.com/forum/picture.php?albumid=58&pictureid=354
http://totalopel.com/forum/picture.php?albumid=58&pictureid=355

[mamakevf]

Just discovered the opel pads are not deep enough to completely cover the pistons when fitted so i'll have to revert to the volvo pads.
http://totalopel.com/forum/picture.php?albumid=58&pictureid=356
http://totalopel.com/forum/picture.php?albumid=58&pictureid=357
http://totalopel.com/forum/picture.php?albumid=58&pictureid=358

[mick]

I have a set of (i think) audi disks with the centres bored out and new mounting holes drilled, i have vectra callipers i think (just went to the scrappy and sed give me the biggest callipers you have to fit this disk and that hub) and my mini****es fit over them, but not standard 13" steels... yet to find out how they work due to a lack of an engine..

[mamakevf]

Right Lads , Got a bit more done today.
Been talk about what discs to use, Audi or Honda, I went for the Honda Prelude 88-91 2.016v as they were 262mm diameter same as volvo and also nearly the same depth as the original kadett disc.

original kadett disc
http://i712.photobucket.com/albums/ww126/mamakevf/13022009586.jpg

Honda disc
http://i712.photobucket.com/albums/ww126/mamakevf/13022009584.jpg

As you can see, the hub does not fit into the disc, so had to be machined, and four extra holes drilled for attaching it.
http://i712.photobucket.com/albums/ww126/mamakevf/13022009585.jpg
http://i712.photobucket.com/albums/ww126/mamakevf/13022009590.jpg

Mounted everything to car and found that one pad would not fit, this was due to there being a slight variation in the depth of the original disc and the honda item,(52mm as to 53mm iirc) I then had the mounting faces of the caliper machined down 1/2mm.
http://i712.photobucket.com/albums/ww126/mamakevf/18022009603.jpg

Everything fitted now.
http://i712.photobucket.com/albums/ww126/mamakevf/01032009636.jpg
http://i712.photobucket.com/albums/ww126/mamakevf/01032009635.jpg

[Dod]

Nice job. Who does the maching for you Kev?

[mamakevf]

Next was feeding the fluid to the caliper.
The volvo caliper has 2 inlets so I used a t-piece to divide it up.
http://i712.photobucket.com/albums/ww126/mamakevf/01032009633.jpg
http://i712.photobucket.com/albums/ww126/mamakevf/01032009634.jpg
Fitted wheel back on, and found that the wheel was now binding on the caliper again, but was easily fixed with a 5mm wheel spacer.
http://i712.photobucket.com/albums/ww126/mamakevf/01032009638.jpg
http://i712.photobucket.com/albums/ww126/mamakevf/01032009642.jpg
Most of the info I got was from other forums, but also involves some trial and error.

[mamakevf]

I get it done by 'Letterkenny Precision Engineering'
They're on the Mountain Top, I get it done handy, I do them a deal, they do me a deal, etc,etc.:thumbup:

[DPM]

Just to reopen this again.

I have a spare set of Princess 4 pot calipers that i was going to use and i know that they fit behind 13" wheels and bolt straight on without modification.

Now to avoid pad overlap the ideal disc size for the princess calipers is 257mm. can any one tell me if there are opel (or other for that matter) discs which will bolt on without requiring modification that are close to a 257mm diameter?