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RX-7 2nd Gen Specific (1986-92) RX-7 1986-92 Discussion including performance modifications and technical support sections. |
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05-04-2009, 12:13 AM | #1 |
The Newbie
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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
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Love driving my 7 |
05-04-2009, 08:26 AM | #2 |
shookmotorsports.com
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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 |
05-04-2009, 11:17 AM | #3 |
RCC Loves Me Not You
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You can however use Delrin bushings on the subframe. It helps keep wheel hop down and doesn't transmit (perceived) vibrations to the chassis.
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The Official FC Radiator Thread My Project Thread: Cerberus CCVT Virginia Rotary Group |
05-04-2009, 12:35 PM | #4 |
The Newbie
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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?
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Love driving my 7 |
05-04-2009, 12:37 PM | #5 |
RCC Loves Me Not You
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Poly bushings. Energy suspension sells a master kit which works quite well.
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The Official FC Radiator Thread My Project Thread: Cerberus CCVT Virginia Rotary Group |
05-04-2009, 05:02 PM | #6 |
Rotary Fanatic
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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.
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05-04-2009, 07:49 PM | #7 |
The Newbie
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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...
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Love driving my 7 Last edited by morondongon; 05-04-2009 at 07:53 PM.. |
05-04-2009, 07:54 PM | #8 |
The Newbie
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have you used that kit, i was told that their quality is not good?
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Love driving my 7 |
05-04-2009, 10:01 PM | #10 |
The Newbie
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Neither one has them, if you know of a site let me know... I'm going to ask kg parts see what they carry...
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Love driving my 7 |
05-04-2009, 11:40 PM | #11 |
RCC Loves Me Not You
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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.
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The Official FC Radiator Thread My Project Thread: Cerberus CCVT Virginia Rotary Group |
05-05-2009, 10:28 PM | #12 |
The quest for more torque
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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).
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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) |