Change font size
It is currently Sun Dec 05, 2021 3:11 pm


Post a new topicPost a reply Page 1 of 1   [ 3 posts ]
Author Message
 Post subject: Volvo 122 Front Brake Options.
PostPosted: Sat Apr 11, 2015 9:14 am 
Haha, I just built a W24 Octo-Turbo, now what?!
User avatar

Joined: Wed Jun 14, 2006 4:19 pm
Posts: 3126
Location: Lethbridge, AB
Let's get this done and get a few more options out there for 122 front brakes. I'm going to ask Matt or Dale to post up the pics of Dale's front brakes, I'm going to add the pics of my old 122's front brake conversion and one other that I've recently found.

What I'm NOT going to do is post a basic cookbook as will undoubtably be requested. I've seen all manner of silly things with people's brakes recently. I've seen front callipers fall off, brake hoses leak, no locking tabs (or other methods of mechanical locks). General laziness or sloppy mechanical skills are not to be applied to brakes. I'm going to suggest that we all refrain from adding this information for a couple of reasons:

1. You're messing with your brakes on a road car. If you can't do the calculations or understand how the braking system of your car works, DO NOT UNDER ANY CIRCUMSTANCES MODIFY YOUR BRAKES. Please, please, please take the time to learn what you're doing before attempting ANY modifications on this critical system.

2. I can't stand the "bolt it on and think it might work" mentality that I find on many forums. If you won't be changing all of the brake lines, flex lines, and generally rebuilding things to exact specification, then don't mess with this stuff and continue with what you have.

Here's my version of the BBK for the 122. The basic idea that I went for in designing this stuff was to incorporate off the shelf parts like rotor hats to keep the costs down.
The adapters are currently for sale here for what seems like a lot of money to me...http://www.nordic-car-parts.com/product/big-brake-adapters-amazonp1800/

Parts needed:

Hats:
Wilwood HD Fixed Mount Brake Rotor Hats – 170-0208.

Wilwood Rotor Bolt Kit Number – 230-0233D

Rotor:
Wilwood Ultralight Straight Vane Rotors (11.75” OD, 0.81” Thick) – 160-0471

Caliper:
Wilwood Forged Billet Superlight Caliper (1.375” Piston) – 120-11128

Pads:
Wilwood Polymatrix Q – 15Q-6829K

Image

Here's a close up of the bracket.

Image

Bolted on to the caliper.

Image

On the car.
Image

Here you can see the brackets from the back side and the new brake lines.

Image


THESE BRAKES DO NOT CLEAR 15" Wheels of any type I'm aware of at this point.

_________________
Coburn Performance - OCD comes naturally.


Top
 Profile  
 
 Post subject: Re: Volvo 122 Front Brake Options.
PostPosted: Sat Apr 11, 2015 9:24 am 
Haha, I just built a W24 Octo-Turbo, now what?!
User avatar

Joined: Wed Jun 14, 2006 4:19 pm
Posts: 3126
Location: Lethbridge, AB
Here's a more stock option that I just found on the interwebz - I'm going to post the pictures and that's it - you'll have to look up the part numbers and figure out the rest of the details (like master cylinder sizing etc).

Toyota MR2 (if you recall, I suggested looking for light weight Japanese cars...someone did their homework).

Image

Custom bracket - looks like a pretty simple affair. Note, these parts are welded not billet - I'd rather have them machined from billet. They are steel.

Image

Image

Mounted.

Image

Single piston, sliding calliper keeps things compact. Note that pad options for MR2's are plentiful.

Image


Ready to roll.

Image

_________________
Coburn Performance - OCD comes naturally.


Top
 Profile  
 
 Post subject: Re: Volvo 122 Front Brake Options.
PostPosted: Sat Apr 11, 2015 11:37 am 
Haha, I just built a W24 Octo-Turbo, now what?!
User avatar

Joined: Wed Dec 21, 2005 8:40 pm
Posts: 3482
Location: Calgary, Ab
Here's what we did for Dale's car, which was totally custom. We started with a bracket, I believe I used 3/4" or 1" thick steel plate, and cut it to the shape necessary to mount a BFSL caliper with 1 3/8" pistons and sized for a 1 1/4" thick rotor.

Image

From there we determined the offset needed to mount the rotor, which is an 11.75" diameter piece. We could easily have used 12.19" because neither will fit under a 15" wheel and both will fit under a 16" wheel.

Image

Dale had always planned on using a 17" FWD wheel spec'd for an 850, and used 1800 front hubs to get the 5x108 bolt pattern. The spacer is built right into the hat, and extra-long ARP studs were tack welded to the hub to keep them in place. The right way to do this is to use Kaplhenke's extra-long 240 front studs, though one must keep in mind the added shoulder length and diameter.

Image

The 5x108 bolt pattern was carried on in the rear end, where we used a 240 rear axle. I cut the brackets off and added the proper brackets, which were surgically removed from a 122 axle. The whole thing was assembled in a jig, which is kind of overkill.

Image

Image


Top
 Profile  
 
Display posts from previous:  Sort by  
Post a new topicPost a reply Page 1 of 1   [ 3 posts ]


Who is online

Users browsing this forum: No registered users and 1 guest


You cannot post new topics in this forum
You cannot reply to topics in this forum
You cannot edit your posts in this forum
You cannot delete your posts in this forum
You cannot post attachments in this forum

Jump to:  
cron


Powered by phpBB © 2000, 2002, 2005, 2007 phpBB Group
610nm Style by Daniel St. Jules of Gamexe.net