Mazdaspeed6 Solid Subframe Bushings

Solid subframe bushings for the 6.


The fabrication of the solid bushings are probably the easiest part of the job, the hardest part is removing the front subframe bushings.



Front Bushing Removal








The first cut to remove the outer flange of the bushings, with a hacksaw or reciprocating saw.



The second cut needs to be from a hole saw, detaching the bushing shell from the internal sleeve.



Once removed a standard air hammer, preferably with a curved chisel will make short work of the front bushing shells.



Rear Bushings
Easy Peasey. Air hammer them off. No bonded center sleeve means each side can be removed easily and independently.




New Solid Bushings


They look like this, not installed, turned down from 3" UHMW stock with a cut metal sleeve.
The metal sleeve is there to take the crush of bolt and washer, and the plastic bushing controls the lateral motion of the subframe.






Specs:

I will edit in the specs.

@phate;

 

Is that Delrin?

 

UHMW. similar properties in this application.

 

How hard does the stock rubber feel?

 

Hard to say.
The solid bushings went in early in the last AX season, when I was still learning the MS6.

 

Any noticeable increases in NVH? It's a common upgrade for bmws and there's next to nothing for increases of NVH.

 

Not that I've noticed.
Overall, racecar is pretty comfy for a stiffly sprung car.

 

psst NVH in a racecar, hahaha

 

@ConeKiller; do you daily your race car? Or race car only? Bushings look like they would take a beating on city streets.


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Funny you say that. Your pu has solid subframe bushings.

Racecar is racecar- not a daily.

 

Sweet.


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So pu > juan > redheaded stepchild 6?

 

Happen to have specs?

 

To add my .02 and sorry for the old post bump, but I was able to pry my bushing out with a tuning fork. I only needed to cut one.