How to Install the SPC Performance 72125 – Camber Arms For Infiniti G35 and Nissan 350z

SPC Performance’s arm/shim kit is the first on the market to provide a substantial amount of positive camber change. It has more than enough camber and caster change to correct cars that have been lowered, or for vehicles used in drifting. These new arms allow for precise changes when fine tuning suspension alignment angles necessary when racing or drifting. The hub and caliper shims extend out the center of the wheel making it possible for the forged and fabricated arm to make up to 5 degrees total camber change and +/- 1 deg. of caster change. Using a sliding and rotating ball joint, techs can fine tune both camber and caster to save tires and improve your handling and tire to surface contact. The kit includes everything you need, including the ABS sensor bracket, shims, and arms for both sides of the vehicle. Fits G35 and 350Z applications.

Adjustment Range

Camber: -1.5 degree to +3.5 degree Caster ±1.0 degree

Installation Time: 1.8 hr/side

Required: 1 kit per axle


Infiniti: 2003 – 07 G35 Coupe. 2003 – 05 Sedan

Nissan: 2002 & 2008 350Z

Before beginning, Record the alignment readings, determine the amount of caster and/or camber change needed. Installing the control arm alone should provide +.5 degree to -1.5 degree of camber change along with stated caster change.

If more camber change is needed install the hub shim kit which will provide an additional 2 degrees of positive camber.

Control Arm Installation

1. Always check for loose or worn parts, tire pressure and tire wear.

2. Raise vehicle by body pinch welds and support with jack stands. Remove front tire and wheel assembly.

3. Remove the cotter pin and nut from the upper ball joint and remove the ball joint from the spindle. Support the spindle.

4. Remove the bushing bolts holding the upper control arm to the body. Remove the upper control arm.

5. Using a small puller, remove the ball joint stud seat from the stock ball joint.

6. Install the new adjustable control arm into the vehicle and lightly tighten bushing support bolts. Match up the new arm with the old arm to make sure the correct arm is installed on each side.

7. If caster adjustment is necessary, loosen and remove the large adjusting nut washer from the upper ball joint, then remove the ball joint assembly from control arm. Separate the lock plate from the engagement hex and rotate it as illustrated in Fig #1 for the required caster change then press it back onto the engagement hex

8. Reinstall the adjustable ball joint assembly back into the control arm. Install the washer and nut and lightly tighten.

9. Install the stock ball joint upper seat onto the ball joint stud then install the stud into the spindle, Install the supplied flat washer and then the supplied ball joint castle nut and tighten to 40-46 lb-ft. (54-63 Nm) Install a new cotter pin.

NOTE: Make sure to install flat washer under castle nut to prevent control arm separation from the spindle.

10. Load suspension to normal ride height and tighten upper control arm bushing bolts to 48-55 ft-lb (65-75 Nm).

11. If shim kit is not required, follow steps 10 through 12 below.

Hub Shim Kit Installation

1. Remove brake caliper and support it out of the way so there is no strain on the brake line then remove brake rotor.

2. Remove the ABS sensor on the back of the hub.

3. Remove the 4 bolts holding the bearing hub and remove the hub from the spindle along with the brake shield. Use caution not to damage the back of the bearing hub that supplies the ABS signal.

4. Install the hub spacer so the thickest part of the shim is up and all 4 bolt holes line up properly.

5. Install the plastic dust shield so the ABS sensor opening is pointed straight up towards the very top hub retaining bolt hole. Now install the bearing hub and brake shield. Use the two longer supplied bolts on the top two hub bolts. The bolt with the threaded 8mm hole is installed at the top of the hub directly above the opening in the plastic dust shield. Use the stock bolts on the lower two holes. Tighten bolts to 58-72 ft-lb (78-98Nm).

6. Using the stock ABS bracket bolt install the ABS sensor onto the top hub retaining bolt using the two supplied shims and the retaining bracket as illustrated in Fig #2. Tighten the bolt making sure the ABS sensor does not touch the rotating bearing hub. Fig #3

7. Reinstall brake rotor.

8. Install the caliper spacer between the caliper mount and caliper with the thickest part up. Tighten caliper bolts to 112 lb-ft (150Nm). Make sure brake rotor turns freely.

9. Reinstall the tire and wheel assembly. Remove the vehicle from the jack stands, and lower the car.

10. Determine the amount of camber change needed and verify caster reading. Raise the vehicle far enough to have access to the camber adjusting nut.

11. To adjust camber, loosen the adjusting nut and move the adjustable ball joint in or out in the control arm slot to obtain the desired camber reading then torque the adjusting nut to 120 lb-ft. (162Nm).

Always check for proper clearance between suspension components and other components of the vehicle.

12.Recheck alignment readings, adjust toe, and road test vehicle. Confirm that Anti-Lock Brake and Traction Control systems are working properly.

13. If hub shim kit is installed and the ABS or Traction Control light is illuminated the air gap will need to be adjusted as follows:

a. Remove the ABS sensor retaining bolt and bracket. Remove one shim and reinstall bracket, sensor and bolt. If an issue is still present the second shim can be removed.

b. The ABS sensor gap can be checked if needed. Using a non-magnetic feeler gauge check the gap between the sensor and back of the bearing hub. There should be no more than.016″ (.41mm) gap and the nose of the sensor should be square with the hub. If both shims are removed make sure the nose of the ABS sensor does not touch the rotating hub.

How Car Tuning Can Help You Boost The Performance Of Your Car

Being a novice car driver you might think car tuning might refer to tuning the sound of your car while you accelerate its speed. This however is true to a certain extent, because improvising the sound of the car while you accelerate its speed is also a part of car tuning, and mainly refers to enhancing the condition of your car’s exhaust system. The main objective of the exhaust system is to exhaust the poisonous gases generated by the engine and improve the performance of the engine, the sound that generates during this process gets deteriorated if the exhaust system of car is damaged. Therefore, when you get the system for exhausting gases repaired or replaced it starts generating the standard sound.

But when someone talks about re-tuning the car tuning of your car he mainly refers to enhancing the performance of your by modifying its various aspects depending upon the requirements of the car owner. As a general practice car tuning is mainly performed on cars which are about eight to nine years older, but interestingly today, even car owners are of new cars are also getting their branded car re-tuned to enjoy its performance.

This might surprise to you, but the cars that are manufactured across the world by different manufacturers are strictly developed according to driving standards determined in each country. As an impact car owners in some countries are not able to enjoy the full potential of their car to its full extent. Therefore, to get rid of this problem they get their car re-tuned according to its determined settings.

Interestingly car tuning is not restricted to only one or two areas, but covers different aspects of the car, including engine, wheels, spoilers, exhaust system, braking, suspension system and even an air conditioner vent. In simple words it can be said there are various components of your car which, if reworked can help in enhancing the performance of the car.

Let us now focus on some of the aspects which could help in improvising the performance of car by tuning it.

Engine: The performance of the engine can be boosted with help of chip that is basically installed in the engine control unit (ECU) of the car. The ECU is mainly placed at the on-board port of the car and by changing its settings or rewriting its program with help of chip the performance of the engine can be improved by enhancing its power and torque generation efficiencies.

Braking system: Once the performance of the engine is enhanced, undoubtedly it will also result in an enhancement in its acceleration power. Interestingly, increase in acceleration means a hike in pickup efficiency of the car, which adversely affects its braking efficiency also. If the braking system of a car is not compatible to the power generation efficiency of an engine, it means an increase in the chances of accidents. Therefore, to make the braking system compatible to the engine it is imperative for you to upgrade the braking system according to the power generation efficiency of your vehicle.

Air filter: Replacing the air filter at regular intervals is helpful in increasing the fuel efficiency of your vehicle to a huge extent and also an easiest method of car tuning process. You can also make use of induction kit for improvising the flow of air in fuel injection system despite of using the standard air box. The induction kit has a pointed filer which is installed directly above the air flow gauge and results in smooth flow of air through the engine, thus enhancing its overall performance.

Exhaust system: It is also one important factor to consider while you plan to tune your car. Installation of powerful exhaust system equipped with strong pipes helps in the exhaust of gases more conveniently and smoothly.

Moving ahead, you can also work on improvising the performance of a car’s suspension system. To make your car compatible to enhanced engine tuning it would be imperative for you to replace the existing suspension system with a new one and also work on replacing the shock absorbers and wheels so that it is easier for drivers to control his vehicle according to newly determined standards.