Notices
Series I Tech Garage The place to discuss anything technical about the RX-8 that doesn't fit into any of the categories below.

Subframe replacement/upgraded bushings (not solid)

Thread Tools
 
Rate Thread
 
Old Jul 30, 2012 | 05:53 AM
  #1  
hellaflush8's Avatar
Thread Starter
Registered
 
Joined: May 2012
Posts: 43
Likes: 0
Subframe replacement/upgraded bushings (not solid)

so my rear subframe bushings are shot... with coilovers and good allignment im getting excessive wheel hop STILL and also have gotten under and done some measurements... subframe has shifted to the passenger side by 8mm... this is my main concern... wheel hop i can deal with under loss of traction however the total rear track shifting to one side is crap especially considering my 10.5 +22's get here this week...

i have googled, searched this forum and others however can only find a few references to solid mounts being used in the subframe... does anyone know of a polyurethane or derlin/rubber replacement subframe mount kit? failing all of the above i guess i will need to order from mazdapartsonline and get the factory rubber crap and pay an arm and a leg!
Reply
Old Jul 30, 2012 | 06:50 AM
  #2  
nycgps's Avatar
Out of NYC
iTrader: (1)
 
Joined: Jun 2005
Posts: 19,881
Likes: 36
From: Planet Earth
factory rubber is not crap, in fact when you think about it, it last all these years before it finally gave up.

polyurethene will make your ride harsh (a bit) and they do not exactly last forever

So only thing u can do is replace the frame mount, don't remember how much exactly but it's something like 300 ?
Reply
Old Jul 30, 2012 | 07:15 AM
  #3  
hellaflush8's Avatar
Thread Starter
Registered
 
Joined: May 2012
Posts: 43
Likes: 0
so factory mazda mounts are the only option then?

tried finding them on mazdapartsonline and saw no listing... just the whole subframe for $1200... i just need replacement mounts!
Reply
Old Jul 30, 2012 | 06:24 PM
  #4  
godesshunter's Avatar
Voids warranties
 
Joined: Aug 2011
Posts: 1,632
Likes: 0
From: southern new england
I think 3SX can refill your existing bushing mounts with new polyurethane. They do a lot of Mistu. stuff but it looks like they used to refurbish old mounts with new filling. Might be worth looking into.

3SX Custom Polyurethane Motor Mounts - 3000GT / Stealth (all years/models) - Mitsubishi 3000GT / Dodge Stealth Parts
Reply
Old Jul 30, 2012 | 07:24 PM
  #5  
hellaflush8's Avatar
Thread Starter
Registered
 
Joined: May 2012
Posts: 43
Likes: 0
Well just spoke to Mazda... bushes not sold separately...

Name:  subframe.jpg
Views: 4278
Size:  86.7 KB
Reply
Old Jul 30, 2012 | 07:44 PM
  #6  
nycgps's Avatar
Out of NYC
iTrader: (1)
 
Joined: Jun 2005
Posts: 19,881
Likes: 36
From: Planet Earth
u talking about the 28-800?
Reply
Old Jul 30, 2012 | 08:36 PM
  #7  
hellaflush8's Avatar
Thread Starter
Registered
 
Joined: May 2012
Posts: 43
Likes: 0
yeah... as you can see no part numbers associated for the bushes that go into the subframe (28-800) it looks as though its one complete piece...

aftermarket is now my only option but seems as though no one makes them either
Reply
Old Aug 4, 2012 | 12:05 PM
  #8  
hellaflush8's Avatar
Thread Starter
Registered
 
Joined: May 2012
Posts: 43
Likes: 0
bump?
Reply
Old Aug 4, 2012 | 03:21 PM
  #9  
TeamRX8's Avatar
Registered
iTrader: (25)
 
Joined: Apr 2005
Posts: 26,932
Likes: 2,139
Swapping them is a major project, especially the front two. I don't see how your supposed issue is even possible. You must be hellamistaken.
Reply
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
Carbon8
RX-8's For Sale/Wanted
42
Feb 27, 2020 08:39 AM
JimmyBlack
Series I Major Horsepower Upgrades
273
Feb 10, 2020 10:23 PM
fourwhls
RX-8's For Sale/Wanted
7
Feb 20, 2019 05:16 PM
Brokegang
New Member Forum
27
Jan 3, 2016 12:45 PM
Steve Dallas
RX-8 Parts For Sale/Wanted
0
Sep 19, 2015 09:39 AM



You have already rated this thread Rating: Thread Rating: 0 votes,  average.


All times are GMT -5. The time now is 03:21 PM.