Notices
Brakes & Suspension 350Z stoppers, coils, shocks/dampers

BC True Coilovers Rant

Thread Tools
 
Search this Thread
 
Old May 10, 2012 | 03:50 AM
  #21  
TeegsMR's Avatar
TeegsMR
Thread Starter
Registered User
iTrader: (4)
 
Joined: Feb 2011
Posts: 178
Likes: 0
From: Washington
Default

Originally Posted by AdvanZ33
BR Type true coilover? When did this happen?
They've had this option for awhile.
Reply
Old May 10, 2012 | 03:53 AM
  #22  
TeegsMR's Avatar
TeegsMR
Thread Starter
Registered User
iTrader: (4)
 
Joined: Feb 2011
Posts: 178
Likes: 0
From: Washington
Default

Originally Posted by AllstarE4
Can you not lower the spring perch? I've never owned coilovers so I don't know, but that's what it looks like. I would imagine that would shorten shock travel, but I'm just throwing out an idea.

edit: this is exactly what davidv suggested. Seems to make sense to me as well.
Lowering the spring perch is the improper way as it effects the preload of the spring.
Reply
Old May 10, 2012 | 03:57 AM
  #23  
AllstarE4's Avatar
AllstarE4
Sleeps in 350Z
Premier Member
iTrader: (5)
 
Joined: Apr 2008
Posts: 3,244
Likes: 4
From: Fort Worth, TX
Default

Originally Posted by TeegsMR
Lowering the spring perch is the improper way as it effects the preload of the spring.
I can understand why raising the spring perch would affect it because you would then be compressing the spring to shorten ride height. But by lowering the perch you're just moving the shock body up into the spring. In my head it seems like the spring wouldn't be effected at all.
Reply
Old May 10, 2012 | 05:17 AM
  #24  
suprasam's Avatar
suprasam
Registered User
 
Joined: Jun 2007
Posts: 498
Likes: 1
From: ATL, FT Benning, North Cak
Default

^^ when you lower the perch it travels down the threaded shock body causing the spring to uncompress. When he adjust the height the spring perch and spring should rotate with the shock body so preload isn't affected.

I don't know if that helped

Last edited by suprasam; May 10, 2012 at 05:24 AM.
Reply
Old May 10, 2012 | 05:38 AM
  #25  
sry110's Avatar
sry110
New Member
iTrader: (17)
 
Joined: Jan 2006
Posts: 6,650
Likes: 36
From: Malvern, PA
Default

ib4terrasmaksays"toldyouso"
Reply
Old May 10, 2012 | 05:41 AM
  #26  
pss350z's Avatar
pss350z
Registered User
iTrader: (6)
 
Joined: Aug 2005
Posts: 830
Likes: 1
From: ontario, canada
Default

Originally Posted by TeegsMR
Lowering the spring perch is the improper way as it effects the preload of the spring.
If lowering the spring perch is incorrect then how do you expect to adjust the ride height? Mind you there is always a recommended range of travel, and just because it may appear like there is tons of adjustment left you may very well be at the limit. You should have a owner's manual that shows proper range and where to measure from.

just wondering out of curiosity, what happens to the actual spring perch in the rear once you installed the coilovers? I guess now there is just an empty void of where the spring would actually sit?
Reply
Old May 10, 2012 | 06:47 AM
  #27  
sry110's Avatar
sry110
New Member
iTrader: (17)
 
Joined: Jan 2006
Posts: 6,650
Likes: 36
From: Malvern, PA
Default

Are you sure the threaded shock body is bottoming out in the tube? Could it be a buggered up thread in the tube that is preventing the shock from threading in further? I think you need to measure the depth of the threads in the tube versus the length of the threads on the shock, and convince yourself that it's going as far as it can go. (Unless that's what you did when you posted the picture with the tape measure....honestly it was a lot of text and a TL;DR for me)
Reply
Old May 10, 2012 | 07:24 AM
  #28  
terrasmak's Avatar
terrasmak
Super Moderator
MY350Z.COM
Premier Member
15 Year Member
Liked
Loved
Community Favorite
iTrader: (8)
 
Joined: Jan 2007
Posts: 29,119
Likes: 2,400
From: Sin City
Default

If the idiots at BC Racing knew anything about suspension (trust me they don't , i talked to them at SEMA) they would know that running a true coilover in the rear of a Z with a 10k front you would want a 4k spring, max 5k.

BTW if you were running the proper spring the rear would be about 1/2 inch lower, just on spring compression with weight on it.

I know spring rates and stuff don't matter, you just want to say you have coilovers and attempt to make your car look cool by slamming it and gettin it all stanced out yo.

Last edited by terrasmak; May 10, 2012 at 07:54 AM.
Reply
Old May 10, 2012 | 07:47 AM
  #29  
juicenigk's Avatar
juicenigk
New Member
iTrader: (1)
 
Joined: Jan 2008
Posts: 148
Likes: 0
From: navarre
Default

Im having the same issues with my BC coilovers in the rear
I currently have the "62 97 210 008" springs on my car right now.
I think BC sells an adaptor and "shorter" springs. Dont take my word though im still going back and fourth with BC. I wish I got true coilovers though
Reply
Old May 10, 2012 | 07:56 AM
  #30  
stogey420time's Avatar
stogey420time
Club Moderator
the Hot Spot
iTrader: (1)
 
Joined: Nov 2005
Posts: 3,714
Likes: 79
From: Houston
Default

Originally Posted by TeegsMR
I wasn't looking to hellaflush my car or tuck tire, just wanted there to be zero gap!
Get the shorter rear spring will even out your drop and be done with it.
THIS guy did back in 2008 and was happy with the outcome.
Reply
Old May 10, 2012 | 08:12 AM
  #31  
TeegsMR's Avatar
TeegsMR
Thread Starter
Registered User
iTrader: (4)
 
Joined: Feb 2011
Posts: 178
Likes: 0
From: Washington
Default

Originally Posted by sry110
Are you sure the threaded shock body is bottoming out in the tube? Could it be a buggered up thread in the tube that is preventing the shock from threading in further? I think you need to measure the depth of the threads in the tube versus the length of the threads on the shock, and convince yourself that it's going as far as it can go. (Unless that's what you did when you posted the picture with the tape measure....honestly it was a lot of text and a TL;DR for me)
Yep I did this off the car before I installed them.
Reply
Old May 10, 2012 | 08:19 AM
  #32  
TeegsMR's Avatar
TeegsMR
Thread Starter
Registered User
iTrader: (4)
 
Joined: Feb 2011
Posts: 178
Likes: 0
From: Washington
Default

Originally Posted by pss350z
If lowering the spring perch is incorrect then how do you expect to adjust the ride height? Mind you there is always a recommended range of travel, and just because it may appear like there is tons of adjustment left you may very well be at the limit. You should have a owner's manual that shows proper range and where to measure from.



just wondering out of curiosity, what happens to the actual spring perch in the rear once you installed the coilovers? I guess now there is just an empty void of where the spring would actually sit?
-Like stated before, proper way to adjust these is by threading the shock body into the lower portion of the coilover.

-As stated above also it was replaced with SPL toe arms.

Last edited by TeegsMR; May 10, 2012 at 08:20 AM.
Reply
Old May 10, 2012 | 08:41 AM
  #33  
TeegsMR's Avatar
TeegsMR
Thread Starter
Registered User
iTrader: (4)
 
Joined: Feb 2011
Posts: 178
Likes: 0
From: Washington
Default

Originally Posted by terrasmak
If the idiots at BC Racing knew anything about suspension (trust me they don't , i talked to them at SEMA) they would know that running a true coilover in the rear of a Z with a 10k front you would want a 4k spring, max 5k.

BTW if you were running the proper spring the rear would be about 1/2 inch lower, just on spring compression with weight on it.

I know spring rates and stuff don't matter, you just want to say you have coilovers and attempt to make your car look cool by slamming it and gettin it all stanced out yo.
Actually I am not all about slamming/hellaflush yo! Everyone has there on taste/opinions though. I wanted minimal wheel/fender gap but still maintaining proper toe and camber setting, hence why I purchased all the supporting mods, front UCA's, Rear camber arms, rear toe arms, and lockout bolts/washers. I had BC coilovers on my 465 awhp evo 10 that I beat the crap of every day, and every day the coilovers made the car handle like a dream!

Lastly when the the spring is moved from the OEM position to the true style position my 8k spring will actually act like a 4k OEM positioned spring! Couldn't find the thread about this so if someone has the link please post it up! Thanks for your inputs YO!
Reply
Old May 10, 2012 | 08:44 AM
  #34  
TeegsMR's Avatar
TeegsMR
Thread Starter
Registered User
iTrader: (4)
 
Joined: Feb 2011
Posts: 178
Likes: 0
From: Washington
Default

Originally Posted by juicenigk
Im having the same issues with my BC coilovers in the rear
I currently have the "62 97 210 008" springs on my car right now.
I think BC sells an adaptor and "shorter" springs. Dont take my word though im still going back and fourth with BC. I wish I got true coilovers though
Ya if you have the OEM style than you have a progressive spring where is on my true style setup they are liner. I'm still waiting to hear back form them lol I was torn between their OEM and True for a while.
Reply
Old May 10, 2012 | 09:17 AM
  #35  
frivolous_'s Avatar
frivolous_
Registered User
 
Joined: Oct 2011
Posts: 244
Likes: 0
From: CA
Default

Originally Posted by TeegsMR
I had BC coilovers on my 465 awhp evo 10 that I beat the crap of every day, and every day the coilovers made the car handle like a dream!

YO!
this number makes your suspension knowledge increase. fasho.
Reply
Old May 10, 2012 | 09:32 AM
  #36  
ronn1's Avatar
ronn1
Registered User
iTrader: (1)
 
Joined: Aug 2011
Posts: 1,374
Likes: 2
From: Burbank, Ca
Default

Originally Posted by Cux350z
Looks like you have BC BR type coilovers.

The spring should be in the spring bucket, not on the shock.

If that is a 062 200 008 spring, it is way too stiff to be on the shock if the front is a 10kg.

Did you have any extra parts in the box? Did you set the springs onto the shock and set the preload yourself or did they ship that way?
The shock wouldn't be threaded if it was an OEM set up. He would have been given the seats and proper threaded adjuster for the spring bucket as well. Your *theory* makes no sence at all.
Reply
Old May 10, 2012 | 09:43 AM
  #37  
03threefiftyz's Avatar
03threefiftyz
350Z-holic
Premier Member
iTrader: (25)
 
Joined: Aug 2007
Posts: 9,848
Likes: 118
From: Frederick, MD
Default

Originally Posted by TeegsMR
Actually I am not all about slamming/hellaflush yo! Everyone has there on taste/opinions though. I wanted minimal wheel/fender gap but still maintaining proper toe and camber setting, hence why I purchased all the supporting mods, front UCA's, Rear camber arms, rear toe arms, and lockout bolts/washers. I had BC coilovers on my 465 awhp evo 10 that I beat the crap of every day, and every day the coilovers made the car handle like a dream!

Lastly when the the spring is moved from the OEM position to the true style position my 8k spring will actually act like a 4k OEM positioned spring! Couldn't find the thread about this so if someone has the link please post it up! Thanks for your inputs YO!
Fail.
Reply
Old May 10, 2012 | 09:44 AM
  #38  
frivolous_'s Avatar
frivolous_
Registered User
 
Joined: Oct 2011
Posts: 244
Likes: 0
From: CA
Default

nvm this post
Reply
Old May 10, 2012 | 09:46 AM
  #39  
sry110's Avatar
sry110
New Member
iTrader: (17)
 
Joined: Jan 2006
Posts: 6,650
Likes: 36
From: Malvern, PA
Default

Originally Posted by ronn1
The shock wouldn't be threaded if it was an OEM set up. He would have been given the seats and proper threaded adjuster for the spring bucket as well. Your *theory* makes no sence at all.
FYI the OEM-type (BC BR series) rear shocks are indeed threaded into the adapter for the lower spring bucket mount, so that the overall shock length can be adjusted to match the desired ride height.
Reply
Old May 10, 2012 | 12:19 PM
  #40  
Phenom's Avatar
Phenom
Toasty
iTrader: (4)
 
Joined: Mar 2007
Posts: 13,783
Likes: 1,382
From: New York
Default

Originally Posted by TeegsMR
Lastly when the the spring is moved from the OEM position to the true style position my 8k spring will actually act like a 4k OEM positioned spring!
Care to explain this?
Reply



All times are GMT -8. The time now is 06:32 PM.