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Adjusting preload on new bc coilovers?

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Old 09-06-14, 12:22 PM   #1
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Default Adjusting preload on new bc coilovers?

So with my last set of bc's, I just left it at factory preload out of the box and installed them. Just got another set today and I'm wondering if I should do what this thread (http://www.clublexus.com/forums/suspension-and-brakes/695290-bc-coilover-preload-setting.html) suggests and do 4mm. I had no clunking noise with my old set and no problems whatsoever and they rode comfortably. Also I hear that I should also let the coilover break in first before even lowering my car. So throw it on at whatever height is in the box and then adjust to your preferred height a week later? Let me know if this makes sense to you.

One other thing is the coilover is different compared to the vid since we don't have those camber adjustments on the top.
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Old 09-06-14, 05:42 PM   #2
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Bump this uppp urgent!!
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Old 09-06-14, 06:38 PM   #3
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I wish I could give you a definitive answer, but if you are really concerned, why wouldn't you just preload them? It is a relatively simple procedure, especially if they are not on the car already. With a simple search you'll find youtube clip to help DIY
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Old 09-06-14, 07:13 PM   #4
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The springs might settle a bit. If you plan to lower your car so much that you risk rubbing, then don't lower it quite that much to begin with. But I don't see any reason you couldn't start by lowering it some.
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Old 09-06-14, 07:41 PM   #5
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should come preloaded from the factory. just throw them on and adjust height
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Old 09-06-14, 08:01 PM   #6
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check the preload, two of my BC coils with the swift upgrade was not done.

like 1swt2gs said, then just adjust height.
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Old 09-06-14, 10:46 PM   #7
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Quote:
Originally Posted by ISFPOWER View Post
check the preload, two of my BC coils with the swift upgrade was not done.

like 1swt2gs said, then just adjust height.
What's the recommended preload. 4mm?
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Old 09-06-14, 10:47 PM   #8
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Thanks for the answers guys. Ya I tried to do my research since they' still haven't been installed so it'll be easy but information was very minimal. I'm putting the coilovers on tomorrow so that's why I'm sorta panicking. I will check all of them to make sure they're preloaded
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Old 09-06-14, 11:01 PM   #9
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Quote:
Originally Posted by BoyOhBoy View Post
Thanks for the answers guys. Ya I tried to do my research since they' still haven't been installed so it'll be easy but information was very minimal. I'm putting the coilovers on tomorrow so that's why I'm sorta panicking. I will check all of them to make sure they're preloaded
I did a 4mm (the thickness of the spanner wrenches) just in case the factory preload wasn't correct. It was a peace of mind thing.

I watched the video on this thread to learn how to perform the preload. Super easy to do too.

http://www.clublexus.com/forums/susp...d-setting.html

Good luck!
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Old 09-06-14, 11:44 PM   #10
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Quote:
Originally Posted by 2ISTruong View Post
I did a 4mm (the thickness of the spanner wrenches) just in case the factory preload wasn't correct. It was a peace of mind thing.

I watched the video on this thread to learn how to perform the preload. Super easy to do too.

http://www.clublexus.com/forums/susp...d-setting.html

Good luck!
Thanks I will use this later!
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Old 09-07-14, 03:27 AM   #11
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My BC had correct preload from factory. I dont drive my car much and it was sitting like 2 weeks and it settled in lot lower. All the preload was gone, especially in the back. Springs started knocking.
I didnt want to take them out again which is stupid so I just added another 4mm of load. Had to adjust ride height like 8 times before I got it right.
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Old 09-07-14, 04:54 PM   #12
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I also went with the two spanner wrench thickness preload.
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Old 09-07-14, 05:47 PM   #13
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Quote:
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I also went with the two spanner wrench thickness preload.
Hahaha ya, I noticed your name on the other old thread. Kinda rough trying to compress a spring thats super stiff with pretty high rates (20k+). I managed to just get all of them preloaded to the same length, roughly 8in spring length compressed, if i remember correctly. No way I'm going to take off the preload to 0 and redo the tightening to check if it's 4mm LOL. Let's just hope this plays out after the install.
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Old 09-08-14, 05:14 PM   #14
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By the way, you're to set the preload while the coils are ON THE CAR.
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Old 09-08-14, 05:32 PM   #15
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Quote:
By the way, you're to set the preload while the coils are ON THE CAR.
Why would that be? Thinking about it, I don't see what difference it would make and it would be much easier to do before the coils go on the car.
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Old 09-08-14, 05:32 PM
 
 
 
 
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