Go Back   Rotary Car Club > Tech Discussion > RX-7 2nd Gen Specific (1986-92)

RX-7 2nd Gen Specific (1986-92) RX-7 1986-92 Discussion including performance modifications and technical support sections.

Reply
 
Thread Tools Display Modes
Old 05-04-2009, 12:13 AM   #1
morondongon
The Newbie
 
morondongon's Avatar
 
Join Date: Apr 2009
Location: NJ
iTrader: (0)
Posts: 16
Rep Power: 0
morondongon is on a distinguished road
Default derling bushings

Sup guys?! Am in need of some new bushings and as looking into the super pro but unfortunately they don't make them for the FC. I have been browsing and have come across these bushings made by Derling. My question is has anyone tried them on their car? Here's the link...
http://www.mazdatrix.com/rmounts.htm






__________________
Love driving my 7
morondongon is offline   Reply With Quote
Old 05-04-2009, 08:26 AM   #2
moremazda
shookmotorsports.com
 
Join Date: Apr 2008
Location: Rockford, IL
iTrader: (1)
Posts: 108
Rep Power: 17
moremazda is on a distinguished road
Default

If it's a street car stick with the polyurethane bushings. The suspension system is bombarded with vibrations while the car is moving. The stock bushings are designed to reduce those vibrations a significant amount. Polyurethane transmits more vibration to the chassis but still dampens out the "hard" vibrations, or the damaging vibrations. Delrin on the other hand begins to transmit some of those more damaging vibrations to the chassis; which if in use on a street car can, and most likely will, lead to stress cracks at the pickup points and eventually mount failure. Delrin bushings should be kept to the race cars, or the street cars that aren't really street cars.

Ryan
moremazda is offline   Reply With Quote
Old 05-04-2009, 11:17 AM   #3
vex
RCC Loves Me Not You
 
vex's Avatar
 
Join Date: Jul 2008
Location: Influx.
iTrader: (6)
Posts: 2,113
Rep Power: 19
vex will become famous soon enough
Default

You can however use Delrin bushings on the subframe. It helps keep wheel hop down and doesn't transmit (perceived) vibrations to the chassis.
vex is offline   Reply With Quote
Old 05-04-2009, 12:35 PM   #4
morondongon
The Newbie
 
morondongon's Avatar
 
Join Date: Apr 2009
Location: NJ
iTrader: (0)
Posts: 16
Rep Power: 0
morondongon is on a distinguished road
Default

My car is for street, not a daily driver. My bushings are in pretty bad shape and need to replace them, so i would like to get something better, that will increase the performance of my 7. I don't want my ride to be too rough either... What do you guys use for after market?
__________________
Love driving my 7
morondongon is offline   Reply With Quote
Old 05-04-2009, 12:37 PM   #5
vex
RCC Loves Me Not You
 
vex's Avatar
 
Join Date: Jul 2008
Location: Influx.
iTrader: (6)
Posts: 2,113
Rep Power: 19
vex will become famous soon enough
Default

Poly bushings. Energy suspension sells a master kit which works quite well.
vex is offline   Reply With Quote
Old 05-04-2009, 07:54 PM   #6
morondongon
The Newbie
 
morondongon's Avatar
 
Join Date: Apr 2009
Location: NJ
iTrader: (0)
Posts: 16
Rep Power: 0
morondongon is on a distinguished road
Default

Quote:
Originally Posted by vex View Post
Poly bushings. Energy suspension sells a master kit which works quite well.
have you used that kit, i was told that their quality is not good?
__________________
Love driving my 7
morondongon is offline   Reply With Quote
Old 05-04-2009, 11:40 PM   #7
vex
RCC Loves Me Not You
 
vex's Avatar
 
Join Date: Jul 2008
Location: Influx.
iTrader: (6)
Posts: 2,113
Rep Power: 19
vex will become famous soon enough
Default

Quote:
Originally Posted by morondongon View Post
have you used that kit, i was told that their quality is not good?
Yes I've used them, as have a majority of owners from what I can tell. The ride is a little stiffer, but compared to worn out bushings they're amazing. Have not had any problems with them what so ever.
vex is offline   Reply With Quote
Old 05-04-2009, 05:02 PM   #8
firzen
Rotary Fanatic
 
Join Date: Mar 2008
iTrader: (2)
Posts: 231
Rep Power: 17
firzen is on a distinguished road
Default

If your old bushings are shot, even a fresh set of the stock bushings would still be an upgrade. Since you're going to be driving on the street, you ought to consider the quality of the roads in your area before you buy the 'upgraded' bushings. Harder bushings in general mean a harder (read: harsher) ride.
firzen is offline   Reply With Quote
Old 05-04-2009, 07:49 PM   #9
morondongon
The Newbie
 
morondongon's Avatar
 
Join Date: Apr 2009
Location: NJ
iTrader: (0)
Posts: 16
Rep Power: 0
morondongon is on a distinguished road
Default

Quote:
Originally Posted by firzen View Post
you ought to consider the quality of the roads in your area before you buy the 'upgraded' bushings. Harder bushings in general mean a harder (read: harsher) ride.
I live in the NJ/NY our roads suck azz!!! there are more pod holes in any NYC street than any other street in the US (maybe except PR) luckly i don't drive my 7 daily and try to avoid NYC whenever i go for a drive Jersey roads are avarage... I don't want bushings that i'm going to be able to feel every part of the engine, trans and diff, or put stress on the chasi of the car... I'll look into the energy suspension, but i was told that their products are not of good quality...
__________________
Love driving my 7

Last edited by morondongon; 05-04-2009 at 07:53 PM..
morondongon is offline   Reply With Quote
Old 05-04-2009, 08:03 PM   #10
TehMonkay
Rotary Fanatic
 
Join Date: Apr 2008
Location: Louisville, KY
iTrader: (0)
Posts: 302
Rep Power: 17
TehMonkay is on a distinguished road
Default

Mazdaspeed bushings, mazdatrix sells them i think, maybe corksport.
__________________
My car blows up everytime I start it, it's rotary

TehMonkay is offline   Reply With Quote
Old 05-04-2009, 10:01 PM   #11
morondongon
The Newbie
 
morondongon's Avatar
 
Join Date: Apr 2009
Location: NJ
iTrader: (0)
Posts: 16
Rep Power: 0
morondongon is on a distinguished road
Default

Quote:
Originally Posted by TehMonkay View Post
Mazdaspeed bushings, mazdatrix sells them i think, maybe corksport.
Neither one has them, if you know of a site let me know... I'm going to ask kg parts see what they carry...
__________________
Love driving my 7
morondongon is offline   Reply With Quote
Old 05-05-2009, 10:28 PM   #12
NoDOHC
The quest for more torque
 
NoDOHC's Avatar
 
Join Date: Sep 2008
Location: Sheboygan, Wisconsin
iTrader: (1)
Posts: 855
Rep Power: 17
NoDOHC will become famous soon enough
Default

I have energy suspension bushing on the '91 and will soon be installing another set in the '86. I like them and think they perform well (although neither of these is a race car).
__________________
1986 GXL ('87 4-port NA - Haltech E8, LS2 Coils. Defined Autoworks Headers, Dual 2.5" Exhaust (Dual Superflow, dBX mufflers)
1991 Coupe (KYB AGX Shocks, Eibach lowering springs, RB exhaust, Stock and Automatic)
NoDOHC is offline   Reply With Quote
Reply

Bookmarks

Thread Tools
Display Modes

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

Forum Jump


All times are GMT -5. The time now is 04:54 AM.


Powered by vBulletin® Version 3.8.4
Copyright ©2000 - 2024, Jelsoft Enterprises Ltd.
Hosted by www.GotPlacement.com
Ad Management by RedTyger