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Differences Between BC Racing's Coilover Series

November 9, 2021

 

If you know BC Racing, you know they have what seems like a million different coilover series (that may be a bit of a stretch, but even six series are hard to keep track of). They all range from different adjustability scales, budgets, and applications, but they’re all backed by BC’s excellent build quality and reliability. 

I mean, not every coilover company has their own legit racing team all the way from Time Attack, Grid Lift, Formula Drift, and Formula Drift Pro —this includes one of the enthusiast community’s favorite car dudes, Adam LZ (Formula Drift Pro). 

 

Check out BC Racing's Coilovers series

 

Regardless, BC Racing has six super badass coilover series that have all built a name for themselves in the enthusiast community.

In this complete BC Racing coilover guide, we’re going to break down every series that they currently offer in hopes to help you figure out which series is best for your application. 

 

THE ULTIMATE GUIDE TO COILOVERS

 

BC Racing Coilovers Guide

- BR Series

- RM Series

- DS Series

- ER Series

- HM Series

- ZR Series

- Final Thoughts

 

 

 

BC Racing BR Series Coilovers

The BR Series from BC Racing is the most budget-friendly and popular coilover series, and it’s easy to see why. 

 

GET THE BR SERIES

 

Bc Racing BR Series coilovers

 

It's arguably the best choice for budget-friendly, street builds that partake in the occasional road course or autocross duty because it still has all the adjustments you need for an exciting driving experience with the BC Racing label. 

 

 

Photo from BC Racing

The BR series features 30-clicks of simultaneous compression and rebound adjustments allowing drivers to easily adjust damping for their application.

Let's say you're just cruising to work during the week—you can adjust the BR series to ride easily and smoothly. 

Once you're at the track, you can stiffen those bad boys up in practically 3 seconds. 

 

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2001 TOYOTA MR2 SPYDER BASE with Konig Dekagram wheels withBridgestone Potenza Re71r tires, and BC Racing Coilovers

 

The ride height adjustment on the BR series is actually independent of shock stroke and spring preload which is ideal since it allows the spring preload to be snug regardless of the ride height you choose. 

Drivers can choose how low or high the vehicle sits (no manufacturer preset ride height here!) and a BC Racing patented concave lower locking ring keeps it locked securely in place. 

 

CHECK OUT THE BR SERIES

 

Most systems can be upgraded to pillow ball mounts and swift springs to provide a lil extra feedback from the suspension to sharpen steering response.

This makes a world of difference into the corners.

 

BC Racing BR Series featuring damping and camber adjustments

 

And for those who want camber adjustments on their coilovers, the BR series from BC Racing also features front camber plates which are crazy easy to adjust (as shown above). 

 

CHECK OUT BC RACING COILOVERS

 

2018 HONDA ACCORD SPORT running Rays Engineering Te37 wheels with Firestone Indy 500 tires, and BC Racing Coilovers

 

Now, if you were hoping to have some nasty camber, these camber adjustment plates (alone) are not going to make your tilty-boy dreams come true—or any coilover really.

 If that’s that look you’re going for, you’ll have to invest in some more suspension upgrades. 

 

2016 SCION FR-S BASE with Aodhan Ah05 running Firestone Indy 500, and BC Racing Coilovers

 

Regardless, the BR series has everything entry-level and daily drivers need on the street and for the occasional track day.

 

BR Series Overview:

- Ideal for daily drivers and the occasional track/autocross day

- Mono-tube shock design

- Ride height adjustment independent of spring preload

- 30-Clicks of simultaneous compression and rebound adjustment (damping)

- Front adjustable camber plates

- Custom spring rates and swift spring upgrades available

- Fully rebuildable

- Starting at $930

 

GET THE BR SERIES

 

 

 

 

BC Racing RM Series Coilovers

The RM Series from BC Racing shares many of the same features as the BR Series like the adjustable ride height and damping, however, there’s one major difference. 

The RM Series coilovers feature an inverted monotube damper

In simple terms, this configuration moves the damper fluid away from the heat of your braking system. 

 

Bc Racing RM series coilovers

 

As we all know, heat build-up can have detrimental effects on literally anything on your car; hence why manufacturers have heat shields and such.

 This inverted monotube damper allows the fluid inside the coilover to stay cool and provide better cornering and stability as a result. 

 

2010 Nissan 370Z running Wedsport Sa-15r wheels with Firestone Indy 500 tires, and Bc Racing coilovers

 

Additionally, the RM series uses a significantly larger inverted piston shaft designed to handle more abuse from track days for longer periods of time without fatigue.

As you might have guessed, the RM Series is designed primarily for track applications, so it's probably best to throw these on your weekend race car. 

 

2013 Scion FRS running Cosmis Racing XT-006R wheels, Federal 595S-rr tires, and BC Racing coilovers

 

RM Series Overview:

- Designed for track applications

- Inverted mono-tube damper for better fluid cooling

- Ride height adjustment independent of spring preload

- 30-Clicks of simultaneous compression and rebound adjustment (damping)

- Front camber plates

- Rear camber plates available for application kits

- Custom spring rates and swift spring upgrades available

- Fully rebuildable

 

EXPLORE BC RACING COILOVERS

 

Parking garage photo of a 2013 Scion FRS running Cosmis Racing XT-006R wheels, Federal 595S-rr tires, and BC Racing coilovers

 

 

 

BC Racing DS (DR) Series Coilovers

The DS Series was previously known as the DR Series so this will apply to both.

The DS series coilovers have what's called a Digressive Piston, which allows the coilovers to make adjustments based on speed and road conditions

 

CHECK OUT THE DS SERIES FROM BC RACING

 

2008 Chevy Corvette Base with Artisa ArtFormed Wheels Elder, Yokohama ADVAN Apex V601 tires, and BC Racing Coilovers

 

During high speeds, the coilovers stiffen to reduce body roll when you're taking a fast corner, but they will also soften when you encounter things like a pothole or poor road conditions to soften the ride.

Now, if you live somewhere with terrible roads and potholes literally everywhere—*cough cough* Wisconsin—then this is a nice feature for you. 

 

2002 Subaru WRX WRX running Enkei RPT1 wheels, Firestone Indy 500 tires, and bc racing coilovers

 

The DS series also provides more travel at low speeds allowing the driver to essentially “roll” into corners. 

This series is perfect for your autocross or track day car that may sometimes encounter some bumpy surfaces. 

They allow great performance at any speed and the adaptation means that there is less of a chance of upsetting the car during cornering or acceleration.

 

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BC Racing Coilovers at Fitment Industries

 

We notice that a lot of enthusiasts bounce between the BR series and the DS series.

If this is you, ask yourself what your car’s purpose is.

If you are regularly at the autocross track, this is a great option and I’d highly suggest you invest the extra cash for the DS series.

 

LEARN MORE ABOUT FINANCING YOUR COILOVERS

 

2020 Nissan 3870z sport touring with ESR RF2 wheels, Michelin Pilot Sport A/S 3 tires, and BC Racing coilovers

 

Otherwise, if you really like the idea of the digressive piston and adaptive ride quality but don’t visit the track, this is still a great option. 

The only true reason someone wouldn’t go with the DS series compared to the BR is their budget. 

 

2016 BMW 228I base with ESR CS12 wheels, Linglong tires, and BC Racing coilovers

 

DS Series Overview:

- Mono-tube shock design

- Satin chrome finished shock body

- Ride height adjustment independent of spring preload

- 30-Clicks Of simultaneous compression and rebound adjustment (damping)

- Standard front camber plates

- Rear camber plates available for application kits

- Custom spring rates and swift spring upgrades available for some applications

- Fully rebuildable

 

GET BC RACING DS COILOVERS

 

Side shot of a 2020 Nissan 3870z sport touring with ESR RF2 wheels, Michelin Pilot Sport A/S 3 tires, and BC Racing coilovers

 

 

 

BC Racing ER Series Coilovers

The ER series uses the same damper as the RM series, but it also implements an external reservoir on all four corners for the fluid. 

You've probably seen this style of coilover before as they typically look pretty cool when they're installed. 

 

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BC Racing ER series coilovers

 

BC Racing uses the external reservoir to keep the fluid even cooler by placing it even further from the braking system while allowing you to use more dampening fluid.  

The result of this is a coilover that is able to take the rigorous abuse of the racetrack for a much longer amount of time while being less likely to overheat.

 

2020 Nissan 370Z Sport Touring with ESR RF2 wheels, Michelin Pilot Sport A/S 3 tires, and BC Racing coilovers

 

The reservoir also allows your rebound and compression to be adjusted independently, giving you complete control over your suspension. 

The RM series from BC racing is ideal for hardcore racing applications/dedicated track cars. 

 

READ: HOW TO SET UP YOUR CAR FOR AUTOCROSS

 

White 2005 Subaru Legacy GT Limited with Enkei RS05-RR wheels, Michelin Pilot Sport 4 tiers, and BC Racing coilovers

 

ER Series Overview:

- Mono-tube damper

- Linear twin-piston design

- Ride height adjustment independent of spring preload

- 30-clicks of compression adjustment from the external reservoirs

- 30-clicks of rebound adjustment from the top of the damper

- Front and rear camber plates

- Front and rear pillow ball mounts standard (no camber plates)

- Custom spring rate and swift spring upgrade are available for most applications

- Fully rebuildable

 

EXPLORE BC RACING COILOVERS

 

Side shot of a modified White 2005 Subaru Legacy GT Limited with Enkei RS05-RR wheels, Michelin Pilot Sport 4 tiers, and BC Racing coilovers

 

 

BC Racing HM Series Coilovers

The HM series is a step up from the ER series.

In fact, BC Racing refers to the HM series as the perfect combination of the ER and RM series. 

 

1998 TOYOTA SUPRA TWIN TURBO with Rays Engineering Ce28, Achilles Atr Sport 2, BC Racing Coilovers

 

It shares similar features as the ER Series with its inverted damper and external reservoirs to reduce the most heat. Similar to the RM series, the HM series has that inverted mono-tube design.

The big difference here is the HM series offers independent, 2-way compression and rebound adjustments on the external reservoirs.

Having independent adjustments is highly recommended for track applications, as it allows drivers to fine-tune how their cars handle their weight into and through the corners.

 

GET BC RACING COILOVERS

 

BC Racing HM series coilovers at Fitment Industries

 

If you like what the ER Series offers but you want even more adjustment, then the HM Series will be what you want to look at.

 They also offer the same 30-clicks of independent adjustments for rebound and compression for that fine-tuning aspect.

 

BC Racing HM series

 

These coilovers will stay cool during a hard day at the track and offer a little more customization when compared to the ER Series.

 

HM Series Overview:

- Standard swift springs HM Series Coilovers

- Inverted mono-tube damper

- Linear twin-piston design

- Ride height adjustment independent of spring preload

- 30-clicks of compression adjustment from the external reservoirs

- 30-clicks of rebound adjustment from the bottom of the damper

- Standard front and rear camber plates 

- Standard front and rear pillow ball mounts (no camber plates)

- Fully rebuildable

 

EXPLORE BC RACING COILOVERS

 

White modified 2017 Lexus IS300 F Sport with Rotiform ZMO-M wheels, Nexen Nfera Sur4g tires, and BC Racing coillovers

 

 

BC Racing ZR Series Coilovers

Last but certainly not least, we have BC Racing's newest and most advanced addition, the ZR Series.

These are 3-way adjustable coilovers that are focused purely on racing. 

 

Bc Racing ZR series coilovers

 

While all of the other coilovers on this list offer 30-way adjustability for rebound, the ZR Series also gives you 15-way low-speed compression and 12-way high-speed compression adjustability. 

Of course, all of the adjustments on this series are completely independent so that you have the absolute most adjustability possible.

 

VIEW THE BC RACING GALLERY

 

Drift shot of Adam LZ in his Nissan S15

Photo from BC Racing

These coilovers are designed to strictly be used on race cars as they can be tweaked to almost any possible preference. 

These are BC Racing's most badass and most adjustable coilovers to date.

If you are an Adam LZ fan, he runs the ZR series coilovers in the rear on his S15 for Formula Drift Pro.  

 

Adam LZ's Nissan S15 running BC Racing ZR coilovers at Formula Drift Pro

Photo from BC Racing

ZR Series Overview:

- Inverted mono-tube damper

- Linear twin-piston design

- Standard swift springs 

- Ride height adjustment independent of spring preload

- 30-clicks of rebound adjustment

- 15-clicks of low-speed compression adjustment

- 12-clicks of high-speed compression adjustment

- Standard front and rear camber plates on applicable kits

- Standard front and rear pillow ball mounts (no camber plates)

- Custom spring rates available

- Custom valving Or valving paired for custom spring rate

- Fully rebuildable

 

CHECK OUT THE BC RACING LINEUP

 

Modified 2020 Nissan 370Z Sport Touring with ESR RF2 wheels, Michelin Pilot Sport A/S 3 tires, and BC Racing coilovers

 

 

Final Thoughts

BC Racing is one of the best suspension brands in the industry with an entire collection of badass coilovers for every application to prove it. 

So, I hope that this helped you determine which BC Racing coilovers are right for your build, or at least narrowed it down.

 

 

EXPLORE BC RACING COILOVERS

 

The biggest thing to consider—outside of your budget— is your application.

If you are just a daily driver, the BR series has literally everything you need.

If you are an avid autocrosser, drifter, or road racing fanatic, there are a few options to consider that were designed specifically for racing. 

 

1996 NISSAN 200SX BASE with Volk Sf Challenge wheels, Michelin Pilot Sport 4 tires, and BC Racing Coilovers

 

Don't forget that we offer as low as 0% financing through Affirm so you can spread out the cost into low monthly payments—you don't put your coilover purchase on hold any longer. 

 

LEARN MORE ABOUT FINANCING YOUR COILOVERS

 

If you already run BC coilovers, which series do you run? If you just figured out what series you want to get, tell us in the comments below.

Thanks for reading!

 

VIEW THE BC RACING GALLERY

 

Comments (2)

SSterling from Fitment Industries

02/10/2021

@Ron Kunzelman Hi Ron! Thanks for reaching out! Great choice with the G37S! I actually used to own one and had similar mods to yours, though mine was a G37x. For a daily driver, I'd definitely recommend the BC Racing BR Series coilovers. They'll offer plenty of adjustment and maintain a pretty good ride on the road. You'll definitely notice a difference in the corners, perfect for the occasional aggressive drive on a back road. I currently have them installed on my MK7 GTI and they seem to ride better than the factory suspension. Of course, each car is different but the BR Series is one of our most popular coilovers! If you click the blue button labeled "SHOP BC RACING COILOVERS" you'll be brought to a page where you can enter your vehicle's information to find a set of coilovers that will fit! Thank you! Sterling Copywriter Fitment Industries

RRon Kunzelman

02/06/2021

Need to replace the shocks on my 2012 Infiniti G37S (Sport) sedan which came factory equipped with larger dia rotors, stiffer suspension, faster steering, positraction, and paddle shifters for the 7-spd A/T. Has 85K miles now and shocks are feeling a bit tired. It is my daily driver that I drive aggressively. It has sticky Michelin pilot sport tires and upgraded brakes with drilled and slotted rotors, stainless lines and better pads. Do you have a coilover package that will fit my car, and if so which of your packages is appropriate for my daily driver? Many thanks,Ron

*Subject to approval within a 24-48 hours time frame.


BC RACING
COILOVERS
ER SERIES
BR SERIES
ZR SERIES
DS SERIES
HM SERIES
RM SERIES
FITMENT INDUSTRIES
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