911 BACKING PLATE KIT INSTALLATION
911 (1974-89), 911 Turbo (1978-1989)
The N.E.R.P. Aluminum brake backing plate and associated components are specifically designed for your vehicle. The backing plate has been designed to fit without any modifications to it. The inlet scoop is intended to be mounted to the lower control arm and connected to the backing plate by a 500 Deg F duct hose. All components have been designed to work efficiently together to maximize the cooling capability of the total unit. Now let's get started.
If you purchased the complete kit you should have the following components:
2 - ABS Intake scoops
2 - Sections of 500 Deg F Silicone Hose
2 - Black Anodized Aluminum backing plates
4 - 2 1/2"hose clamps
8 - 50# Black Nylon Tie wraps
- Properly lift and support the front end of the car, and remove the wheels.
- Remove the brake calipers by removing the c–clip that secures the brake lines to the struts (if applicable) along with the two bolts that secure the calipers to the strut and support them in a way not to damage the brake lines.
- Remove the dust cap on the hub in order to gain access to the spindle clamp nut.
- Remove the nut by loosening the screw that clamps it to the threaded spindle. You can now carefully remove the hub and bearings, being careful not to let the front bearing fall out.
- If you have an existing backing-dust plate installed it needs to be removed. The new backing plate can then be installed with the inlet tube opening facing the lower inside of the car.
- Line up the bolt holes and bolt the backing plate to the spindle. Just snug the bolts at this time. Now carefully place the hub and rotor back onto the spindle and check the clearance between the backing plate and the brake rotor. The clearance can be adjusted by using shim washers behind the backing plate. Make sure that the backing plate does not rub on the rotor in the bearing seal location. When satisfied with the fit, the bolts can then be tightened to factory specs.
- Install the scoop on the underneath side of the lower control arm (located as far inboard as possible) and secure it (loosely) with the supplied tie wraps. The debris screen can be installed before or after the scoop has been secured. If a debris screen was purchased you can press the debris screen in, and drill holes to secure it with pop rivets if desired.
- Install the hose between the scoop and the backing plate securing at both ends with the supplied hose clamps. Attach the hose to the backing plate first.
- Re-install the hub spindle clamp nut and adjust and tighten to factory recommendations.
- Place the rotor back onto the hub.
- Re-mount the brake calipers and tighten the bolts to factory specifications. You should also re-install the c-clip that connects the brake line to the strut at this time.
- With the car still up on the jack stands, rotate the steering back and forth to checking for interference. If all checks fine, then re-attach the road wheels, and torque nuts. Finish tightening the tie wraps checking clearance with the tire and rim.
- For off track use the hose and scoop should be removed as an assembly, detaching from the backing plate and lower control arm. Reverse this procedure for re-attachment.
All merchandise is guaranteed to be free from defects in material and workmanship. Any item that has been found to be defective will be replaced without charge due to defective material or workmanship. All warranty claims must include the original invoice number.
N.E.R.P. LLC. Does not warrant the legality of this product or that it complies with local, state, or federal regulations, nor does N.E.R.P. LLC recommend illegal modifications. Due to vehicle regulations varying from state to state, it is recommended you check local laws and regulations for your area before ordering. Our liability is limited to replacement of the part only and does not recognize claims for labor or consequential damage. We do recommend the kit to be installed by a qualified mechanic. The preceding pictures are for reference only, your vehicle may be different.