changing struts to shocks - GM Forum - Buick, Cadillac, Chev, Olds, GMC & Pontiac chat


Performance, Brainstorming & Tuning Talk about modifications, or anything else associated with performance enhancements. Have a new idea for performance/reliability? Post it here. No idea is stupid! (please use Detailing and Appearance for cosmetic ideas)

Reply
 
 
 
Thread Tools Search this Thread
Old 12-15-2006, 01:51 AM   #1
Junior Member
Thread Starter
 
Join Date: Nov 2006
Posts: 9
Thanks: 0
Thanked 0 Times in 0 Posts
gilligan is on a distinguished road
Default changing struts to shocks

I was wanting to stiffin up my suspension. I have a 97 bonniville se. What i was thinking of doing was getting some adjustable coilover shocks. probably from qa1 http://www.qa1.net/qa1_ms2005_drag.pdf. and making all new mounting brackets for it. The bennifts of this would be an almost unlimited aftermaket for spring rates. and could go for the dual adustable shocks. never really played with struts don't think i've even really looked at the set up but from my research there is a strut bearing that i would have to keep. Just a guess here but the strut must pivot when the front wheels turn. Does that make for less unspung weight? Due to the different mounting point over a normal shock set up? I have access to the tools and the experience to fab up all the parts i would need. What are your opions on it?
gilligan is offline   Reply With Quote
Old 12-15-2006, 02:38 AM   #2
Senior Member
Certified Car Nut
 
Join Date: Jun 2003
Posts: 15,928
Thanks: 0
Thanked 0 Times in 0 Posts
BonneMeMN is on a distinguished road
Default

I don't think the suspension design will give you the most out of coilovers.

Bump steer seems to affect me a lot on the hill i live halfway up on. When my rear tires clip a manhole recess in the asphalt, i get some bumpsteer, it may be due to the weight loading on the steep grade, but it is present.

Stiffer spring rates are also not the correct way to really get the car going left to right IMO. Proper damping (very possible with CO) and god sway bar loading are key I believe. I would definetly try SSEi sway bars (FE2/F41 suspension) on your car, I found them to help immensely in the corners. Pair this with new energy suspension poly-urethane endlinks, and see how you feel about it then.
BonneMeMN is offline   Reply With Quote
Old 12-15-2006, 10:52 AM   #3
Junior Member
Thread Starter
 
Join Date: Nov 2006
Posts: 9
Thanks: 0
Thanked 0 Times in 0 Posts
gilligan is on a distinguished road
Default

I understand that to stiff of a spring rates isn't the key but the adjustable rebound and dapening on the shocks would be the big plus. I'm going to give the sway bar and poly bushing a try i know they would make a big difference. More than anything i'm just woundering if the set up would work. Or if I am missing something about how struts work. I glanced under the car this morning and can see that there is a lot less stuff to add weight to the car with the strut setup say compared to a mustang 2 style front end.
gilligan is offline   Reply With Quote
Old 12-15-2006, 11:06 AM   #4
Senior Member
True Car Nut
 
95naSTA's Avatar
 
Join Date: Feb 2003
Location: Philly
Posts: 4,508
Thanks: 0
Thanked 0 Times in 0 Posts
95naSTA is on a distinguished road
Default

There are no direct replacement coilovers or adjustible shocks available for our cars anymore. Domestic Performance was the only vendor producing either but they have screwed people out of alot of $$.
The W-body community is currently exploring DIY solutions. Here are a couple threads to check out:
http://www.clubgp.com/newforum/tm.as...mode=1&smode=1
http://www.w-body.com/forum/index.ph...c,51716.0.html

The club gp thread presents a macpherson strut type solution similar to our front and the w-body thread shows how you would go about a non-macpherson rear setup similar to ours.
95naSTA is offline   Reply With Quote
Old 12-17-2006, 09:09 PM   #5
Junior Member
Thread Starter
 
Join Date: Nov 2006
Posts: 9
Thanks: 0
Thanked 0 Times in 0 Posts
gilligan is on a distinguished road
Default

Some very interesting articals since there is no direct replacement that means with a little work ones could be made keep the bearings and make some new mounts for the new setup. I tried calling qa1 on friday but there tech support was out for the day. Hope fully this week i will have some time to call them and get another opinion on things. If anyone has some experience on this or has some good links they would be greatly apprieceted.
gilligan is offline   Reply With Quote
Old 12-20-2006, 02:39 AM   #6
Senior Member
Certified Car Nut
 
Join Date: Jun 2003
Posts: 15,928
Thanks: 0
Thanked 0 Times in 0 Posts
BonneMeMN is on a distinguished road
Default

I doubt DP even ever had any coil over in real life that would mount up to an H-body. He just claimed to be able to do the work.

I'm watching this thread, I just don't think the chassis is good enough to invest that kind of money, time, and fabrication into. You're making one part good, but there are plenty that still need work.
BonneMeMN is offline   Reply With Quote
Old 12-21-2006, 12:54 AM   #7
Junior Member
Thread Starter
 
Join Date: Nov 2006
Posts: 9
Thanks: 0
Thanked 0 Times in 0 Posts
gilligan is on a distinguished road
Default

I like sleepers and after owning the bonnie for a few weeks i thought it would make a good one. U do have a point with the other things that need to be worked on. The more i drive it i notice things like what i'm sure is chassis flex. The time wouldn't really be an issue Think i could do it in a weekend. more the money than anything. I might see if my uncle has a bonnie in his junk yard to mock things up with. I think i know where there are some cheep coilovers laying around to start with.
gilligan is offline   Reply With Quote
 
 
Reply

Related Topics
Thread Thread Starter Forum Replies Last Post
How do I know what type of shocks/struts I have? Grease is the Word 1992-1999 8 11-05-2004 11:24 AM
Replacement shocks/struts audifreek 1992-1999 7 05-08-2004 01:11 AM
struts/shocks for '92 SSE s/c - brand, part number, cost? billha General GM Chat 17 02-06-2004 06:40 PM
Shocks/Struts Boberle1150 Performance, Brainstorming & Tuning 3 09-18-2003 12:49 AM
Shocks / Struts thetinch 1992-1999 16 07-08-2003 02:34 PM


Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off



All times are GMT -4. The time now is 11:26 AM.


We are a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for us to earn fees by linking to Amazon.com and affiliated sites.