BC Coilover Spring Rates

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Nov 1, 2019 | 08:32 AM

nickj718

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From: Illinois

BC Coilover Spring Rates

Searched but couldn't really find any solid info

I have some BC Coilovers that I have sitting around and im curious as to what spring rates you guys are running for your street/ track cars

Currently they are the R-02-BR and rates are 12k up front and 10k out back

Nov 1, 2019 | 10:53 AM

Vervish

Racer

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From: NJ

I run 16K/12K swift springs - ride pretty good on street (I have not tracked them).

Nov 1, 2019 | 05:09 PM

GS3ooMania

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From: TX

I have the same and rides way better than 08 stock. Feels more planted and would recommend RRRacing USRS if you plan on running 20s. Helped alot with bottoming out. PM if you have any other questions. Its boost season so hows it going?

Quote:

Originally Posted by Vervish

I run 16K/12K swift springs - ride pretty good on street (I have not tracked them).

Nov 2, 2019 | 12:24 AM

OneFastF

Intermediate

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From: California

18k/14k here. BC R DS series. Felt nice on track and canyons. Maybe a bit stiff for some on the streets. I think 18k/12k would be a perfect combo.

Nov 6, 2019 | 07:42 PM

ISFpowered

Instructor

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From: California

Had BC coilovers 16F/14R and felt they were to soft especially for the weight of the car. Now I have Penske 18F/16R and they are perfect!

Nov 7, 2019 | 06:48 AM

Vervish

Racer

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From: NJ

OP - please keep in mind that it's not as simple as adding stiffer springs. I believe the BC's come specifically valved for the spring combo they are ordered with. So stiffer spring on a shock valved for a softer spring may not work right.

Nov 8, 2019 | 08:42 AM

MoarLow

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From: MD

I use whatever they came with, works fine for DD purposes!

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Nov 8, 2019 | 09:05 AM

LexusfanVA

Instructor

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From: MD

I've had BC Racing with 14/10 swifts and 16/12 swifts, both were the cheaper $1200 models. Both rode much smoother than my 08 stock suspension and handled harsh bumps better, yet neither are as sporty.16/12 ride better and won't dip or rub as much if you want to lower the car more than an inch..I currently run HKS 16/10 and they ride a bit rougher than the 16/12 BC swift, but are more stable in the corners and seem better made.

However, I am currently irked by HKS because my front damping adjustment **** somehow got lost and it's not under warranty nor can anyone sell me a piece. I understand it's SEMA month, but HKS can tell me what part # I need, yet no reseller/distributor can order them in the last 3 weeks. Just a rant..