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

Can't lower ride right on Buddy Club Coilovers

Thread Tools
 
Search this Thread
 
Old Feb 5, 2018 | 08:03 AM
  #1  
bcoffin23's Avatar
bcoffin23
Thread Starter
New Member
 
Joined: Nov 2017
Posts: 175
Likes: 3
From: LONG BEACH
Default Can't lower ride right on Buddy Club Coilovers

I have Buddy Club Coilovers (true coilover front and rear) with Swift springs.

My rear coilovers are completely bottomed out (screwed all the way into the fork) and damper is set to 4mm and there is still a 2 inch gap between my tire and quarter panel.

I can slam the front all the way to the ground no problem, but it seems like the shock body itself in the rear is to long. Or am I doing something wrong here?
Reply
Old Feb 5, 2018 | 05:12 PM
  #2  
guitman32's Avatar
guitman32
New Member
iTrader: (15)
 
Joined: Jul 2005
Posts: 1,998
Likes: 108
From: South FL
Default

Is it possible you have the wrong spring length? A picture is worth a thousand words...
Reply
Old Feb 5, 2018 | 08:59 PM
  #3  
terrasmak's Avatar
terrasmak
Super Moderator
MY350Z.COM
Premier Member
15 Year Member
Liked
Loved
Community Favorite
iTrader: (8)
 
Joined: Jan 2007
Posts: 29,122
Likes: 2,400
From: Sin City
Default

What rear spring rate, are you running helper springs, ,what size tires are you running?
Reply
Old Feb 8, 2018 | 04:36 AM
  #4  
bcoffin23's Avatar
bcoffin23
Thread Starter
New Member
 
Joined: Nov 2017
Posts: 175
Likes: 3
From: LONG BEACH
Default

Originally Posted by guitman32
Is it possible you have the wrong spring length? A picture is worth a thousand words...
This issue has been diagnosed. The rear spring rate was almost 1.5x that of the stock spring rate of these coilovers . Since the shock body wasn't shortened to accommodate the stiffer springs, the rear was stuck sitting to high.

Last edited by bcoffin23; Feb 8, 2018 at 05:41 AM. Reason: corrected spring rate
Reply
Old Feb 8, 2018 | 05:19 AM
  #5  
guitman32's Avatar
guitman32
New Member
iTrader: (15)
 
Joined: Jul 2005
Posts: 1,998
Likes: 108
From: South FL
Default

Nice, glad you got it fixed. Figured the rate was too high for the spring length. How stiff are you running in true coilover config?
Reply
Old Feb 8, 2018 | 05:41 AM
  #6  
bcoffin23's Avatar
bcoffin23
Thread Starter
New Member
 
Joined: Nov 2017
Posts: 175
Likes: 3
From: LONG BEACH
Default

Originally Posted by guitman32
Nice, glad you got it fixed. Figured the rate was too high for the spring length. How stiff are you running in true coilover config?
Rear was at 650lb, stock should have been closer to 400lb.

So it was 50%+ above what those coilovers were designed for.
Reply
Old Feb 8, 2018 | 05:42 AM
  #7  
bcoffin23's Avatar
bcoffin23
Thread Starter
New Member
 
Joined: Nov 2017
Posts: 175
Likes: 3
From: LONG BEACH
Default

Originally Posted by terrasmak
What rear spring rate, are you running helper springs, ,what size tires are you running?
650lb in the rear. No helper springs.
Reply
Old Feb 8, 2018 | 05:42 AM
  #8  
bcoffin23's Avatar
bcoffin23
Thread Starter
New Member
 
Joined: Nov 2017
Posts: 175
Likes: 3
From: LONG BEACH
Default

Originally Posted by guitman32
Is it possible you have the wrong spring length? A picture is worth a thousand words...
Length was okay, spring rate was way to stiff for the shock body.
Reply
Old Feb 9, 2018 | 04:30 AM
  #9  
guitman32's Avatar
guitman32
New Member
iTrader: (15)
 
Joined: Jul 2005
Posts: 1,998
Likes: 108
From: South FL
Default

Length and rate are directly correlated, the stiffer the spring the shorter is has to be to give you the correct ride height.

Anyway, thats pretty stiff for coilover config. You must be running slicks. Good luck!
Reply
Old Feb 9, 2018 | 04:56 AM
  #10  
bcoffin23's Avatar
bcoffin23
Thread Starter
New Member
 
Joined: Nov 2017
Posts: 175
Likes: 3
From: LONG BEACH
Default

Originally Posted by guitman32
Length and rate are directly correlated, the stiffer the spring the shorter is has to be to give you the correct ride height.

Anyway, thats pretty stiff for coilover config. You must be running slicks. Good luck!
I am changing the springs to an 8k rate that is designed for the shock body.

I run RSRR from Federal tires. It is not a slick, but a pretty aggressive track tire. Once I start trailering the car to races/TTs......slicks it will be!
Reply
Old Feb 10, 2018 | 10:21 AM
  #11  
terrasmak's Avatar
terrasmak
Super Moderator
MY350Z.COM
Premier Member
15 Year Member
Liked
Loved
Community Favorite
iTrader: (8)
 
Joined: Jan 2007
Posts: 29,122
Likes: 2,400
From: Sin City
Default

Originally Posted by guitman32
Length and rate are directly correlated, the stiffer the spring the shorter is has to be to give you the correct ride height.

Anyway, thats pretty stiff for coilover config. You must be running slicks. Good luck!
Or you use shock length to set the amount of travel and where the travel is. Then use preload combines with helper springs if required to set ride height.

I know what combo the faster cars on the track are using.
Reply
Old Feb 10, 2018 | 10:35 AM
  #12  
guitman32's Avatar
guitman32
New Member
iTrader: (15)
 
Joined: Jul 2005
Posts: 1,998
Likes: 108
From: South FL
Default

^yup thats how its done buddy. I am familiar myself also
Reply
Old Feb 10, 2018 | 10:43 AM
  #13  
guitman32's Avatar
guitman32
New Member
iTrader: (15)
 
Joined: Jul 2005
Posts: 1,998
Likes: 108
From: South FL
Default

Wasnt trying to imply thats how he should set his up, but obviously there was a spring issue.
Reply
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
PikeZ_350
Brakes & Suspension
12
Mar 11, 2010 09:41 AM




All times are GMT -8. The time now is 11:35 PM.