What are "solid subframe mounts"? - Camaro5 Chevy Camaro Forum / Camaro ZL1, SS and V6 Forums

Fogey · 12-05-2010, 04:07 PM

Have the Pfadt sway bars on the way and have read that I might want to add "solid subframe mounts". What are they and why

AdamCzap · 12-05-2010, 04:09 PM

*Mr. Wyndham* · 12-05-2010, 04:15 PM

You'll be able to find much more detailed info around the site. Including a video that answers your exact question. But basically -- the rear subframe is an assembly that holds all the suspension components for the rear tires. A-arms, control arms, even the differential!

The stock system, in the pursuit of refinement and comfort, is mounted to the body of the car with rubber bushings. These allow some flex when changes the geometry of the rear suspension dynamically. By replacing these bushings with solid units, there is 0 flex. Which means much better handling out back.

Fogey · 12-05-2010, 04:39 PM

nt

Apex Motorsports · 12-05-2010, 04:49 PM

Quote:

Originally Posted by Dragoneye

You'll be able to find much more detailed info around the site. Including a video that answers your exact question. But basically -- the rear subframe is an assembly that holds all the suspension components for the rear tires. A-arms, control arms, even the differential!

The stock system, in the pursuit of refinement and comfort, is mounted to the body of the car with rubber bushings. These allow some flex when changes the geometry of the rear suspension dynamically. By replacing these bushings with solid units, there is 0 flex. Which means much better handling out back.

Very well put. By replacing those soft rubber bushings with solid mounts you will find your car reacts more quickly and precisely to your steering inputs and is more predictable and stable. Drag racers will find that their launches will be more controlled and wheel hop will be drastically reduced if not eliminated.

Alain · 12-05-2010, 04:51 PM

how much do those run?

*Mr. Wyndham* · 12-05-2010, 04:59 PM

Quote:

Originally Posted by Apex Chase

Very well put. By replacing those soft rubber bushings with solid mounts you will find your car reacts more quickly and precisely to your steering inputs and is more predictable and stable. Drag racers will find that their launches will be more controlled and wheel hop will be drastically reduced if not eliminated.

Thanks, buddy!

Apex Motorsports · 12-05-2010, 05:07 PM

Quote:

Originally Posted by Dragoneye

Thanks, buddy!

Just giving credit where credit is due.

Quote:

Originally Posted by Alain

how much do those run?

They retail for $690. They are machined from 6061-T6 aluminum so they run a bit more than a set of polyurethane bushings. You have to ask yourself if your application would gain anything from eliminating sub frame movement as opposed to limiting it.

*Mr. Wyndham* · 12-05-2010, 05:09 PM

Quote:

Originally Posted by Apex Chase

Just giving credit where credit is due.

They retail for $690. They are machined from 6061-T6 aluminum so they run a bit more than a set of polyurethane bushings. You have to ask yourself if your application would gain anything from eliminating sub frame movement as opposed to limiting it.

How is ride quality effected using solid metal mounts as opposed to polyurethane?

Apex Motorsports · 12-05-2010, 05:13 PM

Quote:

Originally Posted by Dragoneye

How is ride quality effected using solid metal mounts as opposed to polyurethane?

We have found that with the BMR polyurethane bushings there is pretty much zero impact. With the Pfadt solid mounts you will definitely feel more but it isn't intense or harsh in any way. It is really just a more direct and connected feel. There isn't any reason to be afraid of it even for a daily driver.

*Mr. Wyndham* · 12-05-2010, 05:16 PM

Quote:

Originally Posted by Apex Chase

We have found that with the BMR polyurethane bushings there is pretty much zero impact. With the Pfadt solid mounts you will definitely feel more but it isn't intense or harsh in any way. It is really just a more direct and connected feel. There isn't any reason to be afraid of it even for a daily driver.

Interesting! I suppose that's what the springs and dampers are for, huh?

jimpfromwv · 12-05-2010, 07:17 PM

I've got solid sub frame bushings on my 68 and you can feel EVERYTHING, it made the ride alot more harsh.

StlRomAniaN · 12-05-2010, 07:44 PM

Google is your friend.

Apex Motorsports · 12-05-2010, 07:51 PM

Quote:

Originally Posted by jimpfromwv

I've got solid sub frame bushings on my 68 and you can feel EVERYTHING, it made the ride alot more harsh.

These cars and the 68 are in two different worlds. You will feel more but it isn't bad at all. We've yet to have a customer be unhappy after installing them. Like I said before, BMR also makes great polyurethane bushings that get the job done and incur zero additional NVH that my senses can detect.

12-05-2010, 04:07 PM	#1
Fogey Drives: 2011 2SS/RS A6, IOM Join Date: May 2009 Location: West Los Angeles Posts: 1,236	What are "solid subframe mounts"? Have the Pfadt sway bars on the way and have read that I might want to add "solid subframe mounts". What are they and why

12-05-2010, 04:15 PM	#3
Mr. Wyndham I used to be Dragoneye... Drives: 2018 ZL1 1LE Join Date: Jan 2007 Location: Buffalo, NY Posts: 31,876 View My Garage	You'll be able to find much more detailed info around the site. Including a video that answers your exact question. But basically -- the rear subframe is an assembly that holds all the suspension components for the rear tires. A-arms, control arms, even the differential! The stock system, in the pursuit of refinement and comfort, is mounted to the body of the car with rubber bushings. These allow some flex when changes the geometry of the rear suspension dynamically. By replacing these bushings with solid units, there is 0 flex. Which means much better handling out back. __________________ *"Keep the faith."* - Fbodfather

12-05-2010, 04:39 PM	#4
Fogey Drives: 2011 2SS/RS A6, IOM Join Date: May 2009 Location: West Los Angeles Posts: 1,236	Thanks, sorry I didn't search nt

12-05-2010, 07:44 PM	#13
StlRomAniaN Drives: IOM 2010 Camaro 2SS/RS Join Date: Mar 2009 Location: St. Louis Posts: 1,782 View My Garage	Google is your friend. __________________

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