Bc racing coilovers?

SeeThruHead · 02-08-2022, 01:42 PM

oh also good reading

https://www.motortrend.com/how-to/17...-gotten-wrong/

Preload will change ride height without changing the ride quality/stiffness and also without changing the shock body length. Which means you'll have the same suspension travel.

Whereas adjusting the shock mount will change the length of the shock and will change the wheels position at full compression and full droop.

With that in mind don't the divorced rear springs on a BC BR come with an adjustable perch? I think most divorced setups come with that. You can adjust that to adjust preload and subsequently ride height without changing the shock body length. I don't know what is an "acceptable" amount of preload but I assume if you are adding too much preload at some point you will need to extend the shock body length via the adjustable base. And possibly get longer springs like the guy in this thread below:

EDIT: Looks like they do come with adjustable perch?

Bc racing br coilovers

nasm · 02-11-2022, 01:53 AM

Quote:

Originally Posted by SeeThruHead

https://www.youtube.com/watch?v=j-uM...nel=TheCarizon

Do you have divorced coilovers?

I'm sure some suspension guru will come and give a perfect answer but. Afaik. You can't do anything to the spring to change stiffness. You can adjust ride height and preload. Neither of which will change the stiffness of your spring.

You can buy stiffer springs tho.

In the video he shows raising ride height on divorced spring setup for bc coilover.

good video to explain how right height/preload don't affect stiffness

https://www.youtube.com/watch?v=eRJ9...=Flyin%27Miata

Thanks, and I do appreciate the video ...

Quote:

Originally Posted by JARblue

Yup

You can adjust the shock but not the spring itself. You will have to get another set of springs if you want to change the stiffness. Or like OptionZero mentions below, the SPL midlinks will provide some adjustability.

Thanks, very useful info, appreciated.

Quote:

Originally Posted by OptionZero

The rear spring is a fixed length
The rear spring perch and top mount are fixed locations

You can’t change the height just with the shock.

You can buy a different length spring with the same Or different rate, Swift makes all sorts of springs in different lengths and rates

Or

You can get the SPL adjustable midlink. I thought you already said you were gonna…?
The SPL mild link has a spring perch that has height adjustment. Just make sure you get the right diameter spring, I think it’s 65mm

From talking to SPL directly, a 6 inch spring is appropriate for almost every one

EDIT;
Look at the pictures
https://www.splparts.com/products/37...mid-links.html

Thanks, highly appreciated, I didnt place the order yet, I will soon.
All what I wanna understand is that, the idea/logic of adjusting the springs, and why? because as of now, the car is a bit bouncing from rear, I didnt try to adjust the stiffness yet, because I need to remove the rear plastic covers (in trunk) to reach the adjusting key, for the height I am very satisfied and I dont want to change it, because it is drivable on speed bumps right now, and I cant go lower. So now I believe I need to check the shock stiffness controller and add more clicks towards the stiffness and then try the car one more time.

Quote:

Originally Posted by SeeThruHead

oh also good reading

https://www.motortrend.com/how-to/17...-gotten-wrong/

Preload will change ride height without changing the ride quality/stiffness and also without changing the shock body length. Which means you'll have the same suspension travel.

Whereas adjusting the shock mount will change the length of the shock and will change the wheels position at full compression and full droop.

With that in mind don't the divorced rear springs on a BC BR come with an adjustable perch? I think most divorced setups come with that. You can adjust that to adjust preload and subsequently ride height without changing the shock body length. I don't know what is an "acceptable" amount of preload but I assume if you are adding too much preload at some point you will need to extend the shock body length via the adjustable base. And possibly get longer springs like the guy in this thread below:

EDIT: Looks like they do come with adjustable perch?

Bc racing br coilovers

Very useful info, appreciated.

02-08-2022, 01:42 PM	#1 (permalink)
SeeThruHead Track Member Join Date: Jun 2020 Location: Toronto Posts: 716 Drives: Red '18 Sport Manual Rep Power: 23499	oh also good reading https://www.motortrend.com/how-to/17...-gotten-wrong/ Preload will change ride height without changing the ride quality/stiffness and also without changing the shock body length. Which means you'll have the same suspension travel. Whereas adjusting the shock mount will change the length of the shock and will change the wheels position at full compression and full droop. With that in mind don't the divorced rear springs on a BC BR come with an adjustable perch? I think most divorced setups come with that. You can adjust that to adjust preload and subsequently ride height without changing the shock body length. I don't know what is an "acceptable" amount of preload but I assume if you are adding too much preload at some point you will need to extend the shock body length via the adjustable base. And possibly get longer springs like the guy in this thread below: EDIT: Looks like they do come with adjustable perch? Bc racing br coilovers __________________ My Build thread STH Build Plan Thread Images too big fix here Last edited by SeeThruHead; 02-08-2022 at 01:48 PM.

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