Perth-WRX.com  

Go Back   Perth-WRX.com > Technical > Mechanicals
Register Diddy Kart ArticlesAll AlbumsBlogs FAQ Members List Calendar Search Today's Posts Mark Forums Read

ULTREX
Welcome to Perth-WRX, click here to register!

Like Tree22Likes

Reply
 
LinkBack Thread Tools Display Modes
  #21  
Old 06-06-2015, 11:30 PM
Kremer930's Avatar
STI Master
Member
 
Join Date: Jun 2012
Location: Vic Park
Posts: 551
Thanks: 3
Thanked 18 Times in 18 Posts
Kremer930 at standard level
Default

I wonder how much difference is left between a stylish alloy pitch stop and the group N, which looks near identical to stock.
Reply With Quote
  #22  
Old 06-06-2015, 11:35 PM
Soksta's Avatar
Sign me up!
Perth WRX Old Skool Cool Dude
Member
 
Join Date: Oct 2008
Location: Canning Vale
Posts: 3,168
Thanks: 181
Thanked 111 Times in 100 Posts
Soksta is a guruSoksta is a guru
Default

Did the group N engine mounts, pitch stopper and transmission at the same time.
Didn't really notice any increase in NVH, however with the air con on and being stationary you will pick up more vibrations through the steering column.
Should be able to modify the ecu to bump up the revs when the air con is on to fix that.
__________________
2015 Forester XT Premium
teejay: If I wanted a comeback Id wank in front of a fan
Reply With Quote
  #23  
Old 07-06-2015, 07:16 AM
Kremer930's Avatar
STI Master
Member
 
Join Date: Jun 2012
Location: Vic Park
Posts: 551
Thanks: 3
Thanked 18 Times in 18 Posts
Kremer930 at standard level
Default

Agree. The NVH is not as bad as I thought it may be. The main times that I notice it is when using the clutch to move off. It makes the clutch feel slightly like a puck clutch as you feel slightly increased vibration.

But then again.... The rest of my car is full of NVH due to other mods.
Reply With Quote
  #24  
Old 07-06-2015, 07:31 AM
Dan [GTI]'s Avatar
Subaru Tech Division
Member
 
Join Date: Oct 2011
Location: [DISCLOSED]
Posts: 1,197
Thanks: 175
Thanked 64 Times in 61 Posts
Dan [GTI] knows their stuff
Default

Quote:
Originally Posted by Kremer930 View Post
But then again.... The rest of my car is full of NVH due to other mods.
Never really got bothered about NVH ratings with engine mounts and suspension bushes. Especially when you have a decent exhaust then you NVH is already compromised. Plus once you are up to speed they generally die off.
__________________
MY01 JDM EVO VII - 230KW / 430NM @ 1.6BAR
Reply With Quote
  #25  
Old 07-06-2015, 08:13 AM
Kremer930's Avatar
STI Master
Member
 
Join Date: Jun 2012
Location: Vic Park
Posts: 551
Thanks: 3
Thanked 18 Times in 18 Posts
Kremer930 at standard level
Default

I was initially going to install the Cusco mounts but people talked me out of them. I don't think that they would ha e been that bad at the end of the day.
Reply With Quote
  #26  
Old 07-06-2015, 09:15 AM
STI Master
Member
 
Join Date: Oct 2010
Location: Spearwood
Posts: 880
Thanks: 12
Thanked 71 Times in 68 Posts
Bram knows their stuff
Default

I have spherical metal joints at every part of the suspension. Every engine, gbox, and diff mount has been upped. Every crossmember has been replaced. I have upped every bush in the outrigger, shifter and steering rack etc. I even have solid metal bushings between my gearbox C/M pieces. And i have every chassis brace you can get. Plus a rattly CF twin plate, mono flexs and cusco rear LSD.

Cars NVH is truly atrocious. It clunks like nothing else. Every bump is felt. Every mechanical operation is felt. Just using the starter motor rattles the whole cabin. It has all kinds of weird harmonics when driving. The tyres skip when turning tight. Clutch disengaged and the metal rattly sound makes people cringe. And i cant even turn the stereo up to cover it because i ripped it out to save weight.

But i wouldnt change it for the world.

What im saying is, toughen up ya pussies, dont be afraid of a little NVH. Have a cup of concrete and harden the F up. And do the same for your cars.

If your afraid of a little NVH, go buy a Prius.
__________________
Doing it for all the wagons out there

Last edited by Bram; 07-06-2015 at 09:29 AM.
Reply With Quote
  #27  
Old 07-06-2015, 09:44 AM
Rexxar's Avatar
Loud crack pipes?
Member
 
Join Date: Dec 2007
Location: far far SOR
Posts: 2,308
Thanks: 12
Thanked 6 Times in 6 Posts
Rexxar at standard level
Send a message via MSN to Rexxar
Default

Does replacing all these bushes really make a difference?

Maybe in the future when they're perish I'll endeavour to replace them but they are still doing ok for now

keen for 2 way rear diff tho
__________________
Chinese Mexican
[SIGPIC][/SIGPIC]
Reply With Quote
  #28  
Old 07-06-2015, 09:45 AM
Dan [GTI]'s Avatar
Subaru Tech Division
Member
 
Join Date: Oct 2011
Location: [DISCLOSED]
Posts: 1,197
Thanks: 175
Thanked 64 Times in 61 Posts
Dan [GTI] knows their stuff
Default

Quote:
Originally Posted by Bram View Post
Cars NVH is truly atrocious. It clunks like nothing else. Every bump is felt. Every mechanical operation is felt. Just using the starter motor rattles the whole cabin. It has all kinds of weird harmonics when driving. The tyres skip when turning tight. Clutch disengaged and the metal rattly sound makes people cringe. And i cant even turn the stereo up to cover it because i ripped it out to save weight.

But i wouldnt change it for the world.

What im saying is, toughen up ya pussies, dont be afraid of a little NVH. Have a cup of concrete and harden the F up. And do the same for your cars.
This is why I loved my DC2 (Type R swapped) Integra so much. You felt every mechanical input and almost had sensory overload from all the suspension / steering feedback Not to mention the severe lack of sound deadening, close ration box and the obnoxious exhaust just magnified the experience.

That is what truly bugs me about cars now-a-days, they are too sedated, smooth, composed, etc. ECU re-tunes, sports suspension, big wheels / tyres, exhausts are just the beginnings of a host of corrective measures to reduce comfort in the pursuit of driving pleasure.



Quote:
Originally Posted by Rexxar View Post
Does replacing all these bushes really make a difference?
My brothers FG Turbo Ute has every bush in the rear (diff, control arm, etc), most of the fronts and gearbox mounts replaced with polyurethane replacement items. The NVH is increase noticeable (mainly diff / gearbox noise) but the pay off is the car feels solid under power. I know it clearly isn't a WRX, just my recent experience.
__________________
MY01 JDM EVO VII - 230KW / 430NM @ 1.6BAR

Last edited by Dan [GTI]; 07-06-2015 at 09:52 AM.
Reply With Quote
  #29  
Old 07-06-2015, 10:58 AM
Flat Four Father
Member
 
Join Date: Dec 2005
Location: Kewdale
Posts: 2,011
Thanks: 3
Thanked 62 Times in 45 Posts
seagull knows their stuff
Default

6 speed conversion
2way mechanical rear LSD
RichX and Dan [GTI] like this.
Reply With Quote
  #30  
Old 07-06-2015, 11:59 AM
nick73's Avatar
Subaru Tech Division
Member
 
Join Date: Feb 2011
Location: cubicle 2
Posts: 1,381
Thanks: 139
Thanked 83 Times in 79 Posts
nick73 knows their stuff
Default

Quote:
Originally Posted by seagull View Post
6 speed conversion
2way mechanical rear LSD
Hey Neil,

Is the diff you mention here similar to the torsen in my 10'STi or are they completely different in feel/performance?
__________________
Inheritor of the 'right foot of Subaru death'.
Reply With Quote
Reply

Tags
boost, involve, mods, performance, tunes

Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are On


Similar Threads
Thread Thread Starter Forum Replies Last Post
Ezy Flash with MY08 My09 tunes niak75 For Sale 8 17-10-2011 07:10 PM



Welcome to Perth-WRX, click here to register!

All times are GMT +8. The time now is 09:41 AM.


Powered by vBulletin® Version 3.8.9
Copyright ©2000 - 2019, vBulletin Solutions, Inc.
Content Relevant URLs by vBSEO