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Description

Toyota JZA80 Supra MK4 (93-02) BC Racing ER coilover kit 14/10 or 16/12 kg/mm

The BC Racing ER coilover kit Supra JZA80 (part number C-15-ER) is a coilover kit adjustable in height and damping, also simply called a coilover, for the Toyota Supra MK4 (JZA80), model years 1993 to 2002, and according to BC Racing UK also the Toyota Soarer (JZZ30). You choose the spring rate when ordering: 14/10 or 16/12 kg/mm front/rear.

With the ER series, BC Racing offers a 2-way adjustable coilover kit for those who take track driving or racing seriously. The monotube dampers with double piston and external reservoir let you set compression and rebound separately, each in 30 clicks.

BC Racing supplies the ER for the Supra MK4 with two spring choices under the same part number: 14/10 kg/mm, or 16/12 kg/mm if you want it even stiffer. The dampers, the 2-way adjustment and the external reservoir are the same on both; only the springs differ. Digressive damping and fully synthetic oil make the kit suitable for a JZA80 that sees serious track use.

Key benefits

• 2-way adjustable: compression and rebound 30 clicks each, independently of each other.
• External reservoir: on monotube dampers with a double piston.
• Digressive damping: a lot of control over slow body movements.
• Fully synthetic oil: with a very high viscosity index.
• Spring rate of your choice: 14/10 kg/mm as the softer of the two ER spring choices, or 16/12 kg/mm as the stiffer choice for intensive track use.
• Camber plates on suitable kits: rubber top mounts are optional.
• Concave lower lock ring: the set height stays locked.
• Rebuildable: the dampers can be rebuilt.

Suitable for

Toyota Supra MK4 (JZA80) with rear-wheel drive, model years 1993 to 2002, and according to BC Racing UK also the Toyota Soarer JZZ/UZZ (1991 to 2000)

• Serious track use with the Supra MK4
• Club racing and time attack
• Drivers who want to set compression and rebound separately

Technical specifications

• Manufacturer: BC Racing
• Part number: C-15-ER
• Series: ER, 2-way for track and racing
• Version: C-15-ER with 14/10 or 16/12 kg/mm
• Spring rate front/rear: 14/10 or 16/12 kg/mm (choose when ordering)
• Damper design: monotube with double piston and external reservoir, digressive, fully synthetic oil
• Damping: 2-way, 30 clicks compression and 30 clicks rebound, independently adjustable
• Ride height: infinitely adjustable via the damper body
• Top mounts: camber plates on suitable kits, rubber top mounts optional
• Contents: dampers and springs front and rear, lower mounts, top mounts where applicable, adjustment spanners and warranty card with serial number
• Warranty: 1 year on manufacturing defects; noise from track use is not covered by the warranty

Fitting and delivery

The kit is vehicle-specific and replaces the original dampers and springs. We recommend having it fitted by an experienced mechanic. Make sure the lines of the external reservoirs are routed clear of other parts, and have a new wheel alignment done after setting up the car. The delivery time is 1 to 2 weeks as long as the manufacturer has stock. If BC Racing temporarily has the kit out of stock, you can still order it and we will give you the expected delivery date.

The BC Racing C-15-ER for the Toyota Supra JZA80 is 2-way adjustable with an external reservoir and is supplied with 14 kg/mm front and 10 kg/mm rear, or in the stiffer version with 16 kg/mm front and 12 kg/mm rear.

Why choose this ER coilover kit Supra JZA80?

A JZA80 that goes on track seriously calls for damping you can adjust per direction. With this ER kit you set compression and rebound independently of each other, each in 30 clicks. The 14/10 kg/mm springs are the less stiff choice of the two ER variants, which also keeps the kit suitable for drivers who still regularly drive on the road. If your Supra MK4 mainly goes on track, the stiffer spring choice of 16/12 kg/mm may suit your setup better. If you are unsure between 14/10 and 16/12, feel free to ask us for advice.

BC Racing coilover kits for the Toyota Supra JZA80

Overview of the BC Racing series for the Toyota Supra JZA80 supplied by Race4DriftParts, with the BC Racing part number. Spring rates in kg/mm, front/rear.

For the Lexus SC300 and SC400 (JZZ30), BC Racing has separate kits. Their part numbers start with R-15.

Frequently asked questions

What is the difference between the BC Racing ER coilover kit 14/10 and 16/12 for the Toyota Supra JZA80?

Only the springs differ: you choose 14/10 or 16/12 kg/mm when ordering. The dampers, the 2-way adjustment, the external reservoir and the part number are the same. The ER coilover kit Supra JZA80 with 14/10 kg/mm is the less stiff choice; with 16/12 kg/mm it is the stiffer choice for intensive track and competition use.

What is the difference between the BC Racing ER and ZX coilover kits for the Toyota Supra JZA80?

The ER is 2-way adjustable (compression and rebound), the ZX is 3-way with separate low-speed and high-speed compression in addition to rebound. Both have an external reservoir. For the JZA80, the ZX has 12/6 kg/mm.

Does the BC Racing ER coilover kit fit every Toyota Supra MK4 JZA80?

Yes, BC Racing UK releases the C-15-ER for the rear-wheel drive Supra JZA80 from 1993 to 2002 and mentions no exceptions. BC Racing UK also lists the same code for the Toyota Soarer JZZ/UZZ (1991 to 2000); for a Lexus SC300 or SC400 we would rather confirm the fitment first.

What is the delivery time of the BC Racing ER coilover kit for the Toyota Supra JZA80?

The delivery time is 1 to 2 weeks as long as the manufacturer has stock. If the kit is temporarily sold out, you can still order it and we will let you know when it arrives.

Delivery outside the European Union: different shipping costs may apply. Don’t worry: we will email you as soon as possible after your order and agree the shipping with you. You are not committed to anything without your consent.