Specific question about BC Coils
It's a bit different when the valving/rebound is calculated to pair with a stiffer spring rate. If you were to just slap on some 18k springs on stock shocks it would be a nightmare lol.
Again, I'm on 10k/7k and I actually like how soft they are. makes the car still feel like a cruiser. But Ideally I think something a bit stiffer would be beneficial for someone who likes riding pretty low.
The coilover debate is one of those that never ceases. Most people arent building track cars or race car projects, and blowing thousands of dollars on the best R&D'd coils is foolish, in my opinion. Not that premium parts don't have their merits or value, but only if that's what you're aiming for. You average cheap or mid range coilover will get the job done for most people.
Again, I'm on 10k/7k and I actually like how soft they are. makes the car still feel like a cruiser. But Ideally I think something a bit stiffer would be beneficial for someone who likes riding pretty low.
The coilover debate is one of those that never ceases. Most people arent building track cars or race car projects, and blowing thousands of dollars on the best R&D'd coils is foolish, in my opinion. Not that premium parts don't have their merits or value, but only if that's what you're aiming for. You average cheap or mid range coilover will get the job done for most people.
Rookie
Joined: May 2019
Posts: 88
Likes: 48
From: WISCONSIN
^^ You don't wanna know what I'm running. But they work for now. :P
I am extremely low. My subframe has maybe an inch and a half of clearance at its lowest point.
so when you factor in soft compression/rebound alongside crappy roads, It's not the best. I'm going to raise the ride ever so slightly soon but overall it hasn't been too bad at all.
I would recommend something a little stiffer like the BCs. that would probably be the sweet spot.
I am extremely low. My subframe has maybe an inch and a half of clearance at its lowest point.
so when you factor in soft compression/rebound alongside crappy roads, It's not the best. I'm going to raise the ride ever so slightly soon but overall it hasn't been too bad at all.
I would recommend something a little stiffer like the BCs. that would probably be the sweet spot.
Driver
Joined: Apr 2006
Posts: 79
Likes: 42
From: Virginia
Info from BC Racing
I just chatted with someone at BC racing about their coilovers for the SC. He said that they provide a firmer ride than OEM but retain some comfort. He also said that they have someone there that is using them on an SC300 with a pretty aggressive setup and they work well for him. The default spring rates for an SC are 14K/10K - same as they sell for the MKIV Supra - pretty much in line with what Dokuji is recommending.
So I decided to find a listing on the BC website to check out any options, like Swift spring upgrade but they don't actually list them for the SC. The guy online said just use the ones for a Supra, which makes sense but to do that I would have to ignore the popup warning that they don't make a fitment for the SC. Seems strange to me because I could cop a set for a Prius or a Camry, but not one for my SC, even though Amazon would sell me a set that they say is for my car.
So I decided to find a listing on the BC website to check out any options, like Swift spring upgrade but they don't actually list them for the SC. The guy online said just use the ones for a Supra, which makes sense but to do that I would have to ignore the popup warning that they don't make a fitment for the SC. Seems strange to me because I could cop a set for a Prius or a Camry, but not one for my SC, even though Amazon would sell me a set that they say is for my car.
Figs performance lists BC Coils for SC as well as custom spring rates for both stock springs and swift spring upgrade. The product code seems to be the once for supra though so might be the same thing.
Last edited by - V -; Jun 13, 2019 at 07:09 PM.
Rookie
Joined: May 2019
Posts: 88
Likes: 48
From: WISCONSIN
I just chatted with someone at BC racing about their coilovers for the SC. He said that they provide a firmer ride than OEM but retain some comfort. He also said that they have someone there that is using them on an SC300 with a pretty aggressive setup and they work well for him. The default spring rates for an SC are 14K/10K - same as they sell for the MKIV Supra - pretty much in line with what Dokuji is recommending.
So I decided to find a listing on the BC website to check out any options, like Swift spring upgrade but they don't actually list them for the SC. The guy online said just use the ones for a Supra, which makes sense but to do that I would have to ignore the popup warning that they don't make a fitment for the SC. Seems strange to me because I could cop a set for a Prius or a Camry, but not one for my SC, even though Amazon would sell me a set that they say is for my car.
So I decided to find a listing on the BC website to check out any options, like Swift spring upgrade but they don't actually list them for the SC. The guy online said just use the ones for a Supra, which makes sense but to do that I would have to ignore the popup warning that they don't make a fitment for the SC. Seems strange to me because I could cop a set for a Prius or a Camry, but not one for my SC, even though Amazon would sell me a set that they say is for my car.
Driver
Joined: Apr 2006
Posts: 79
Likes: 42
From: Virginia
From what I have read the product code was always the same for the SC and Supra but with softer springs when it was ordered for the SC. But that setup is gone now, maybe because people complained that it was too soft and bottomed out. Now they they only sell the set for the Supra with the stiffer rates and as the BC guy said it is the same chassis. Of course that is not exactly true but he is right that it is probably close enough.
What I don't know is what you get when you order from a vendor. Do you get the old setup for the SC or just the Supra set with a different name? I guess if you pick your own springs you would know as far as the rates go but would it be valved correctly for those spings?
What I don't know is what you get when you order from a vendor. Do you get the old setup for the SC or just the Supra set with a different name? I guess if you pick your own springs you would know as far as the rates go but would it be valved correctly for those spings?
Driver
Joined: Apr 2006
Posts: 79
Likes: 42
From: Virginia
I agree and if you get the default MKIV set you would know that they were valved to match the springs you bought as well.
Gonna necro this thread to hopefully get more info. I realize we're just beating a dead horse here but more discussions couldn't hurt right?.....RIGHT?! lol
Anyway first things first, Jim did you end up getting the BC kit? if so what spring rates did you end up going with and do you like it?
Secondly hours and hours .....and hours of research I am still very confused BUT i think ive figured out how to get a baseline for minimum spring rate based on drop.
I'll spare you guys the math but i am missing 1 key piece of information before i can complete the calculation. I need to know the SPRING height/length of our stock front and rear springs. If anyone has a set of stock springs laying around that can measure the length from top to bottom for me that would be very much appreciated.
Lastly, in my research I came across some CX Racing coilovers that run 12k/8k. I wanted to see if anyone has any experience with these coils. Are they good?bad?bouncy? etc
Anyway first things first, Jim did you end up getting the BC kit? if so what spring rates did you end up going with and do you like it?
Secondly hours and hours .....and hours of research I am still very confused BUT i think ive figured out how to get a baseline for minimum spring rate based on drop.
I'll spare you guys the math but i am missing 1 key piece of information before i can complete the calculation. I need to know the SPRING height/length of our stock front and rear springs. If anyone has a set of stock springs laying around that can measure the length from top to bottom for me that would be very much appreciated.
Lastly, in my research I came across some CX Racing coilovers that run 12k/8k. I wanted to see if anyone has any experience with these coils. Are they good?bad?bouncy? etc
ClubLexus Stories
Celebrating Lexus & Toyota from Around the Globe
Lexus NX 350h: A Fuel-Sipping Secret Hot Hatch???
Michael S. Palmer
5 Best & 5 Worst Lexus Daily Drivers
Joe Kucinski
Top 5 Hottest Lexus & Toyotas in 2026 (Hardest To Buy)
Brett Foote
2026 Lexus IS 350 F Sport Review: The Last of Its Kind Still Rocks
Michael S. Palmer
Top 10 Most Confusing Things Lexus Has Ever Done!
Joe Kucinski
2026 Lexus ES Review: Lexus Re-Embraces Founding Principles
Michael S. Palmer
10 Lexus Bargains That are Cheaper Than a New Toyota RAV4
Joe Kucinski
8 Weirdest Things Lexus Has Ever Built
Verdad Gallardo
10 Lexus Designs That Have Aged Like Fine Wine
Verdad Gallardo
Driver
Joined: Apr 2006
Posts: 79
Likes: 42
From: Virginia
Driver
Joined: Apr 2006
Posts: 79
Likes: 42
From: Virginia
Nice, any issues bottoming out? also how low are you?
Driver
Joined: Apr 2006
Posts: 79
Likes: 42
From: Virginia
Driver
Joined: Apr 2006
Posts: 79
Likes: 42
From: Virginia