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Description

BMW E36 M3 True Rear (92-99) BC Racing ER coilover kit 6/6 kg/mm

The BC Racing ER coilover kit E36 M3 True Rear (part number I-120-ER) is a coilover kit adjustable in height and damping, also simply called a coilover, for the BMW E36 M3, model years 1992 to 1999, in True Rear version. The spring rate is 6 kg/mm front and 6 kg/mm rear.

This kit is 2-way adjustable and has external reservoirs. It is intended for serious track work and competition, where you want to tune compression and rebound independently of each other.

With True Rear the M3 gets a complete strut at the rear as well. From the factory a separate spring and a separate damper sit side by side there; now the spring sits around the damper, just as at the front. The ER itself is a monotube with dual piston and an external reservoir, digressively tuned and filled with fully synthetic oil with a very high viscosity index.

The spring rate is 6/6 kg/mm. Compression and rebound each have 30 clicks, and the ride height is infinitely adjustable via the damper body.

Key benefits

• 2-way adjustable: compression and rebound each 30 clicks, independently of each other.
• External reservoirs: extra oil volume for heavy track loads.
• Dual-piston monotube: the basis of the ER series.
• True Rear rear end: a complete strut at the rear of the M3.
• Digressive damping: body under control, grip over bumps.
• Synthetic oil with a very high viscosity index: for consistent damping over long stints.
• Concave lock ring: plus a check valve as an option.
• Camber plates: rubber top mounts as an option.

Suitable for

BMW M3 E36, model years 1992 to 1999

• Serious track use and competition
• High-level drifting
• Drivers who want to adjust compression and rebound separately

Technical specifications

• Manufacturer: BC Racing
• Part number: I-120-ER
• Series: ER, 2-way with external reservoirs, track and competition
• Version: True Rear, a complete strut at the rear (spring around the damper) instead of a separate spring and separate damper
• Spring rate front/rear: 6/6 kg/mm
• Damper design: monotube, dual piston, external reservoir
• Damping: 2-way, 30 clicks compression and 30 clicks rebound, independent of each other, digressive
• Ride height: infinitely adjustable via the damper body
• Top mounts: camber plates, rubber top mounts optional
• Oil: fully synthetic, very high viscosity index
• Options: check valve
• Contents: 4 struts with dampers and springs, 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

At the front you replace the struts; at the rear the separate spring and damper come out and the coilover goes in. Please note: BC Racing specifies that the body shell must be reinforced before fitting a True Rear kit. Choose a good location for the reservoirs beforehand, so that the lines stay clear during suspension travel and steering. After setting the height, have the wheel alignment set again. The delivery time is 1 to 2 weeks as long as the manufacturer has stock. Even without stock you can still order; we will keep you informed.

Compression and rebound independent of each other, reservoirs for extra oil and a complete strut at the rear: this is how an E36 M3 drives at competition level.

Why choose this ER coilover kit E36 M3 True Rear?

With a 1-way kit you always adjust compression and rebound together. With the ER you set them separately, so you can let the M3 compress the way you want and rebound the way the circuit demands. True Rear rounds it all off with a complete strut at the rear.

BC Racing coilover kits for the BMW E36 M3 True Rear

Overview of the BC Racing series for the BMW E36 M3 True Rear supplied by Race4DriftParts, with the BC Racing part number. Spring rates in kg/mm, front/rear.

For the E36 M3 in standard version, without True Rear, BC Racing has separate kits. Their part numbers start with I-26.

Frequently asked questions

What does True Rear mean on the BC Racing ER for the E36 M3?

True Rear means that the M3 also gets a complete strut at the rear, with the spring around the damper. As standard the M3 has a separate spring and separate damper at the rear; with this ER coilover kit E36 M3 True Rear that becomes one coilover.

What is the difference between the BC Racing ER and ZX for the E36 M3?

The ER is 2-way with 30 clicks of compression and 30 clicks of rebound; the ZX is 3-way and further splits the compression into 20 clicks low speed and 12 clicks high speed, alongside 30 clicks of rebound. Both have external reservoirs.

Is a check valve available for the BC Racing ER?

Yes, BC Racing offers a check valve as an option for the ER series. If you want to know whether it makes sense for your build, please contact us.

What is the delivery time of this BC Racing ER coilover kit?

The delivery time is normally 1 to 2 weeks as long as the manufacturer has stock. If it is 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.