Notices
993 Turbo Forum 1995-1998

why solid bush rear subframe???

Thread Tools
 
Search this Thread
 
Old Mar 6, 2012 | 11:08 AM
  #16  
David in LA's Avatar
David in LA
Nordschleife Master
20 Year Member
 
Joined: Sep 2002
Posts: 6,509
Likes: 4
Default

Originally Posted by pstoppani
Bill V -

I followed your suspension conversion very closely and it was your experiences that drove me to do the same for my 993TT. It completely transformed the car from a wallowing cruiser to a tight sports car. I'm amazed at how little noise/harshness is added to the car with the fully solid suspension!

Best modification for this car; hands down!
Any chance you can list the conversion you did? Factory RS parts or aftermarket combination of Rennline, monoballs, etc? I'm contemplating making the jump and the price of the parts adds up pretty fast!
Reply
Old Mar 10, 2012 | 06:45 PM
  #17  
Bill Verburg's Avatar
Bill Verburg
Addict
Rennlist Member

20 Year Member
 
Joined: May 2001
Posts: 12,824
Likes: 786
Default

Originally Posted by David in LA
Any chance you can list the conversion you did? Factory RS parts or aftermarket combination of Rennline, monoballs, etc? I'm contemplating making the jump and the price of the parts adds up pretty fast!
You asking me?
if so I did all RS rear arms w/ ERP solid non tilt subframe mounts and Tarrett rear toe links

In front I used Elephant Racing sport rubber A-arm bushes, I would have used the Elephant bushes in back too but also wanted all new ball joints. The RSR's experienced ball joint failure regularly back in the day.
here is the rear parts list

993.331.045.80 Kinematic Control Arm x2 RS, top rear 196.67 393.34
900.067.323.09 M12x1.5x90 hex head bolt x2 K/T inner 5.82 11.64
993.331.219.01 eccentric washer x2 K/T inner 17.05 34.10
999.507.384.09 M12x1.5 nut x2 K/T inner 2.53 5.06
999.084.449.09 VM12x1.5 nut x2 K/T outer 0.97 1.94

993.331.041.81 RS A arm /L 508.10 508.10
993.331.042.81 RS A arm /R 508.10 508.10
900.378.052.09 M12x1.5x80 hex head bolt x2 a/a trailing 5.01 10.02
999.084.445.09 VM12x1.5 nut x2 a/a trailing 0.83 1.66
900.378.051.09 M14x1.5x100 bolt x2 a/a leading 5.01 10.02
900.380.012.09 VM14x1.5 nut x2 a/a leading 1.99 3.98
900.380.009.09 VM12x1.5 nut x2 a/a ball joint nut 1.77 3.54

993.331.047.03 Camber control arm 96- x2 not RS specific, top forward 208.7 417.40
993.331.217.80 Eccentric screw x2 c/l, top forward inner 37.23 74.46
993.331.219.80 Eccentric washer x2 c/l, top forward inner 19.12 38.24
999.084.445.09 VM12x1.5 nut x2 c/l, top forward, inner 0.83 1.66
999.084.449.09 VM12x1.5 nut x2 c/l top forward outer 0.97 1.94
Reply
Old Jun 13, 2014 | 02:21 PM
  #18  
Knight's Avatar
Knight
Drifting
15 Year Member
 
Joined: Nov 2008
Posts: 2,340
Likes: 79
From: Vancouver BC, Canada
Default

Gents just bumping the thread as I'm in the process of refreshing my rear suspension, as usual unexpected news but of course while you there might as well do it right.

I'm replacing all the rear arms, very likely going with RS A arms and KT arms, as Bill noted in many other posts these haver stiffer bushings. Doing also OEM camber arm + Tarret rear toe link arm.

I did notice the price difference of say the Tarrett solids vs Elephant racing rubber is only ~ $50. Assuming might as well just go solids if I proceed.

http://www.tarett.com/items/993-964-...-xx-detail.htm

http://www.elephantracing.com/suspen...erbushings.htm

How much labor is involved in the changing subframe mounts? Keep in mind I'll be doing the the rear arms as noted above.
Reply
Old Jun 13, 2014 | 03:25 PM
  #19  
OverBoosted28's Avatar
OverBoosted28
Rennlist Member
 
Joined: Nov 2010
Posts: 3,484
Likes: 20
From: Central California
Default

Rear subframe mounts are pretty easy. Just have an air chisel to start the lip of the oem mount/bushing. Be careful not to strike/chew up the aluminum carrier. I pulled the bottoms out first so I also had access to push tops out from inside. Go around lip and get it going evenly and it'll loosen up better.
Reply
Old Oct 24, 2015 | 01:44 PM
  #20  
Bradford's Avatar
Bradford
Rennlist Member
20 Year Member
 
Joined: Mar 2004
Posts: 1,613
Likes: 34
From: Westlake Village, Ca. Lake Tahoe, Ca.
Default

Would like to replace my rear sub frame bushings to solid. Can the bushings/mounts be replaced without removing the sub frame? Thanks
Reply
Old Oct 24, 2015 | 08:03 PM
  #21  
Knight's Avatar
Knight
Drifting
15 Year Member
 
Joined: Nov 2008
Posts: 2,340
Likes: 79
From: Vancouver BC, Canada
Default

Originally Posted by Bradford
Would like to replace my rear sub frame bushings to solid. Can the bushings/mounts be replaced without removing the sub frame? Thanks
Yes it can be done and it would be very helpful with some of the rear arms removed too.

As Overboost mentioned one of the challenges is simply removing the existing bushings. +1 on the air chisel!

btw, I ended up going with the Elephant Racing Sport Hardness bushings (equivalent to RS). I heard the solids can lead to a dramatic increase in NVH, as well longevity not as good too.
Reply
Old Oct 26, 2015 | 02:17 PM
  #22  
Bradford's Avatar
Bradford
Rennlist Member
20 Year Member
 
Joined: Mar 2004
Posts: 1,613
Likes: 34
From: Westlake Village, Ca. Lake Tahoe, Ca.
Default

Thank you Knight
Reply
Old Jan 12, 2021 | 01:17 PM
  #23  
TJ993's Avatar
TJ993
Banned
 
Joined: Sep 2011
Posts: 1,201
Likes: 31
From: Toronto, Ontario
Default Rear Subframe Bushings

Originally Posted by Knight
Yes it can be done and it would be very helpful with some of the rear arms removed too.

As Overboost mentioned one of the challenges is simply removing the existing bushings. +1 on the air chisel!

btw, I ended up going with the Elephant Racing Sport Hardness bushings (equivalent to RS). I heard the solids can lead to a dramatic increase in NVH, as well longevity not as good too.
Wondering how this turned out in the long run? (Re: Install of Rear Subframe Bushings?)
Happy new year! Thanks for your time, in advance!
TJ
Reply
Rennlist Stories

The Best Porsche Posts for Porsche Enthusiasts

story-0

Talos Takes Your 991 Porsche 911 GT3 to the Next Level for a Cool $1.13 Million

 Verdad Gallardo
story-1

9 Vehicles Porsche Helped Engineer that Aren't Porsches

 Verdad Gallardo
story-2

9 Features and Characteristics That Only Porsche People Understand

 Verdad Gallardo
story-3

I've Written 500 Rennlist Articles: Here's How Porsche Has Changed Along the Way

 Joe Kucinski
story-4

10 Most Unnecessary Porsches Ever Built (And Why We Love Them)

 Verdad Gallardo
story-5

Porsche 911 GT3 S/C vs 718 Spyder RS: 10 Categories, One Winner

 Joe Kucinski
story-6

This Builder Is Turning Heads With Its Slantnose 911 Creation

 Verdad Gallardo
story-7

Porsche 911 GT3 Artisan Edition Pays Homage to Japanese Culture

 Verdad Gallardo
story-8

Porsche Reveals Coupe Variant of the Electric Cayenne With a Fresh Look

 Verdad Gallardo
story-9

10 Porsche Colors That Have More Personality Than Most People

 Verdad Gallardo




All times are GMT -3. The time now is 11:46 PM.

story-0
Talos Takes Your 991 Porsche 911 GT3 to the Next Level for a Cool $1.13 Million

Slideshow: Talos Vehicles has transformed the Porsche 911 GT3 RS into a carbon-bodied, race-inspired machine that costs well over $1 million before the donor car is even included.

By Verdad Gallardo | 2026-05-19 13:39:04


VIEW MORE
story-1
9 Vehicles Porsche Helped Engineer that Aren't Porsches

Slideshow: Long before engineering consulting became trendy, Porsche was quietly helping other automakers build everything from supercars to economy hatchbacks.

By Verdad Gallardo | 2026-05-15 12:44:44


VIEW MORE
story-2
9 Features and Characteristics That Only Porsche People Understand

Slideshow: Some brands build cars. Porsche builds traditions, obsessions, and a few habits that stopped making sense decades ago but somehow became part of the charm.

By Verdad Gallardo | 2026-05-13 18:46:13


VIEW MORE
story-3
I've Written 500 Rennlist Articles: Here's How Porsche Has Changed Along the Way

Slideshow: Six years and 500 Rennlist articles later, these are the biggest changes at Porsche.

By Joe Kucinski | 2026-05-11 09:52:55


VIEW MORE
story-4
10 Most Unnecessary Porsches Ever Built (And Why We Love Them)

Slideshow: Some Porsches exist for very specific reasons-others feel like they were built just to see if anyone would notice.

By Verdad Gallardo | 2026-05-06 18:00:32


VIEW MORE
story-5
Porsche 911 GT3 S/C vs 718 Spyder RS: 10 Categories, One Winner

Slideshow: Choosing between the 911 GT3 S/C and 718 Spyder RS in 10 key categories to determine one surprising winner.

By Joe Kucinski | 2026-05-05 12:51:46


VIEW MORE
story-6
This Builder Is Turning Heads With Its Slantnose 911 Creation

Slideshow: A small Polish tuner has reimagined the Porsche 911 Slantnose for the modern era, blending 1980s nostalgia with widebody tuning culture and serious performance upgrades.

By Verdad Gallardo | 2026-05-01 10:49:43


VIEW MORE
story-7
Porsche 911 GT3 Artisan Edition Pays Homage to Japanese Culture

Slideshow: Porsche has created a Japan-only 911 GT3 Artisan Edition that blends track-ready hardware with design cues inspired by traditional Japanese craftsmanship.

By Verdad Gallardo | 2026-04-28 19:37:40


VIEW MORE
story-8
Porsche Reveals Coupe Variant of the Electric Cayenne With a Fresh Look

Slideshow: Porsche's latest electric Cayenne Coupe blends dramatic styling with supercar acceleration, turning the brand's midsize SUV into a 1,139-horsepower flagship.

By Verdad Gallardo | 2026-04-27 19:39:30


VIEW MORE
story-9
10 Porsche Colors That Have More Personality Than Most People

Slideshow: Porsche's wildest paint colors aren't just shades-they're full-blown personalities on four wheels.

By Verdad Gallardo | 2026-04-27 19:38:13


VIEW MORE