ARL will supply Wilwood brake calipers. Make sure you have the correct part number for the front calipers: 120-8726.

Fit as per the manual. Make sure the disc is centred in the caliper. Clean the caliper with brake cleaner before fitting the pads.

The central brake pipe union is mounted against the vertical chassis bar on the other side of the front bulkhead panel. Drill and tap for a 6mm bolt. I could have shaped the pipe to be more aesthetically pleasing but it functions.

I have fitted split sleeving over the inboard part of the flexi pipe. It protects against possible chaffing on the bulkhead panel and helps to control the angle to outboard.

The outboard part of the flexi is secured to the top wishbone using a strong 9mm tie wrap through an inverted tie wrap saddle. Then a rubber lined P clip is attached to the saddle with a short 5mm screw/nut.

The chrome of the P clip is tight against the smooth plastic of the saddle and is prone to slip. So rough up both surfaces with a small file and fit a 5mm star washer which will dig in and secure the clip when tightened.

Torque all nuts and bolts (see manual for torque settings), tighten the brake hoses and check that the brake hose is well clear when turning the wheels lock to lock throughout the suspension travel. Fit the wheels and we are done.

Copper pipe from the master cylinder is shorter than standard as we now have floor mounted pedals

Flexi hose it fitted to the top wishbone with a 9mm tie wrap, saddle and rubber lined P clip with 6mm ID

Make sure the flexi pipe to the caliper is not under tension when the wheel is on full lock.

And then check the loop of the pipe is clear of everything when full lock in opposite direction.

Wheels on with Yokohama Track Day tyres.

A note about pedal pressure and cylinder bore sizes taken from Merlin Motorsport web site:

 https://www.merlinmotorsport.co.uk/knowledge_base_articles/view/brake-system-hydraulics-top-tips-for-racing-264

Motorsport Tech Session - TOP TIPS

Pedal effort is directly proportional to the amount of pressure created in the hydraulic braking system peak pressure will reach between 600 and 1200 psi.

A stroke of about 25 - 35 mm at the master cylinder should be needed to reach the peak pressure.

The bore diameter of the master cylinder, the pedal ratio, the total area of all the calipers pistons and the pressure in the brake system all influence the pedal effort.

These also influence the amount of travel required to reach the peak pressure.

TO INCREASE PEDAL EFFORT:

Increase Master Cylinder Diameter Choose Lower Pedal Ratio

Remove or Decrease Brake Assist

TO DECREASE PEDAL EFFORT:

Decrease Master Cylinder Diameter Choose Higher Pedal Ratio

Add or Increase Brake Assist.

Three factors influence the line pressure in the brake system: the pedal force, the pedal ratio and the master cylinder bore sizes.

About 100 to 150 pounds of force from the leg to the pedal is a good working range.

The pedal ratio multiplies this effort.

For example a 5.2:1 pedal ratio would multiply a 100-pound pedal force to 520 pounds force going into the master cylinder. With a 13/16 bore (area=0.5185) the pressure in the system would be 520/0.5185 or 1003 psi.

IF YOU INCREASE MASTER CYLINDER BORE DIAMETER:

Increase Pedal Effort

Decreases Total Pedal Travel

Reduced Push-rod Stroke to Master Cylinder Decreases Line Pressure for a Given Pedal Force

IF YOU DECREASE MASTER CYLINDER BORE DIAMETER:

Decrease Pedal Effort

Increases Total Pedal Travel

Increases Push-rod Stroke to Master Cylinder Increases Line Pressure for a Given Pedal Force.