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!

Reply
 
LinkBack Thread Tools Display Modes
  #21  
Old 07-12-2011, 09:33 PM
phizzle's Avatar
Powered by BP98
Member
 
Join Date: Feb 2007
Location: Perth
Posts: 3,322
Thanks: 43
Thanked 38 Times in 30 Posts
phizzle at standard level
Default

Quote:
Originally Posted by StubbsR1 View Post
I prefer over steer to under steer.
As someone's signature is "Oversteer scares the passengers, understeer scares the driver"

Quote:
Originally Posted by ewrxion87 View Post
so lift the rear a tad and soften it out. at the moment i have the car exactly 25inchs from ground to arch all round mm for mm.
Measure from the centre of the wheel to the edge of the gaurd

will -0.5 camber actually help? Yes but I'd be inclined to put the front on about -1.0, rear at -0.5.

thinking about it now that you mention it... when i was taking the corner it was bumpy... do you think because the setup is so stiff the springs didnt have enough time to react ? is that how it works?
You're on the right track there.
If your setup is too stiff then when the tyre rides up on the bump it will have the effect of catapulting the tyre at the crest of the bump, at which time your tyre/s is/are no longer in contact with the road. Not good unless you are trying to do a jump. The tyre should ride up one side of the bump and then down the other maintaining contact, yet not be so soft that it's like driving the Rottnest Ferry.
__________________
No more GC8, sad face.
[SIGPIC][/SIGPIC]
Reply With Quote
  #22  
Old 08-12-2011, 08:51 AM
Kato's Avatar
Burnout!
Member
 
Join Date: Jul 2005
Location: Pimp Corner
Posts: 7,099
Thanks: 7
Thanked 120 Times in 75 Posts
Kato is a guruKato is a guru
Default

Thread has had a bit of a tidy...

Good to see you tested this out at the track, not on public roads... As being a dipshit on public roads does not go well around here

It sounds like your setup is completely stuffed.

If you are taking corners, you want camber on your tyres. This allows the tyre to have more contact area with the road whilst cornering.

You want your suspension to be quite soft actually. I have gone down the path of having rock hard, moob shaking suspension and it is not faster or better. On a smooth track surface, yes you can go harder. On road surfaces, stiff = bump = more chance of tyres leaving contact with the road.

Your alignment needs to be looked at. To be honest, anyone letting a Subaru out with no camber adjustment is silly. I would also look at your stiffness settings for the front and rear sway bars. What was your final toe setting and castor settings too? These also play a massive role in cornering.

Tyres will be a factor. 205 width isn't helping in wet conditions. Also a tyre that is sex in the dry can be shit in the wet, so do some research on that.

Basically everything you do, you want to have the maximum tyre contact area whilst in the corner. Tyre off the ground or not fully on the ground = more chance of slip happening.
__________________
[COLOR="Gray"]550Nm off a 2L... Just wish it was in the dak dak...[/COLOR]
Reply With Quote
  #23  
Old 08-12-2011, 09:29 AM
RUSSGT's Avatar
Perth WRX Old Skool Cool Dude
Member
 
Join Date: May 2007
Location: Perth
Posts: 4,784
Thanks: 109
Thanked 90 Times in 79 Posts
RUSSGT is a guruRUSSGT is a guru
Default

Oversteer is great!
Reply With Quote
  #24  
Old 08-12-2011, 09:32 AM
GTB Liberty's Avatar
Perth WRX Old Skool Cool Dude
Member
 
Join Date: Jun 2009
Location: Mexico - sur del río en capa libre
Posts: 4,037
Thanks: 204
Thanked 140 Times in 92 Posts
GTB Liberty is a guruGTB Liberty is a guru
Default

Quote:
Originally Posted by RUSSGT View Post
4WD power sliding is great!
Fixed Russ
__________________
Liberty GT Spec B tuned 240 HP & 372 Nm at the hubs. "Instead of banning high performance cars - ban low performance drivers"
Reply With Quote
  #25  
Old 08-12-2011, 10:29 AM
ewrxion87's Avatar
WRX Hi Five Club
Member
 
Join Date: Oct 2011
Location: Perth
Posts: 294
Thanks: 17
Thanked 3 Times in 3 Posts
ewrxion87 at standard level
Default

kato - cheers for the information.... so softer is better for the road and stiffer is better for the track...in a nutshell ?

yes...track would have been better but like i say i wasnt hooning...anyways i was back from upnorth for 2 days only and needed to try and sort this out...

looks like il go and see wa suspension again and get them to adjust it accordingly... if softer is what i need il just adjust the dampening knob....
in terms of spring rate / rebound etc... thats well and truly above me so il need an expert to look at it. swaybars are on the middle setting out of the three available...this is what my tuner set them at.

in terms of camber - what do you recommend others above have said -0.5 - 1.0 etc...
is changing the dampening knob enough...or does spring rate and rebound all different things to be taken into account...in terms of an adjustment i can do...would dampening be enough ? IYO

im listening to everyones opinions as they are all valid from my angle.
thanks

Quote:
Originally Posted by Kato View Post
Thread has had a bit of a tidy...

Good to see you tested this out at the track, not on public roads... As being a dipshit on public roads does not go well around here

It sounds like your setup is completely stuffed.

If you are taking corners, you want camber on your tyres. This allows the tyre to have more contact area with the road whilst cornering.

You want your suspension to be quite soft actually. I have gone down the path of having rock hard, moob shaking suspension and it is not faster or better. On a smooth track surface, yes you can go harder. On road surfaces, stiff = bump = more chance of tyres leaving contact with the road.

Your alignment needs to be looked at. To be honest, anyone letting a Subaru out with no camber adjustment is silly. I would also look at your stiffness settings for the front and rear sway bars. What was your final toe setting and castor settings too? These also play a massive role in cornering.

Tyres will be a factor. 205 width isn't helping in wet conditions. Also a tyre that is sex in the dry can be shit in the wet, so do some research on that.

Basically everything you do, you want to have the maximum tyre contact area whilst in the corner. Tyre off the ground or not fully on the ground = more chance of slip happening.
__________________
Ewrxion87

P-West TMIC / ecutek / HF CAI / Turbosmart / Apexi / Federal / 19psi / bc racing & whiteline / Perrin Performance / Rays
Reply With Quote
  #26  
Old 08-12-2011, 10:31 AM
ewrxion87's Avatar
WRX Hi Five Club
Member
 
Join Date: Oct 2011
Location: Perth
Posts: 294
Thanks: 17
Thanked 3 Times in 3 Posts
ewrxion87 at standard level
Default

haha i saw your youtube video, its more than impressing :P

i dont think i have enough power to do that, and the experience / confidence to drive like that.
very cool.

Quote:
Originally Posted by RUSSGT View Post
Oversteer is great!
__________________
Ewrxion87

P-West TMIC / ecutek / HF CAI / Turbosmart / Apexi / Federal / 19psi / bc racing & whiteline / Perrin Performance / Rays

Last edited by ewrxion87; 08-12-2011 at 10:48 AM.
Reply With Quote
  #27  
Old 08-12-2011, 10:43 AM
REXXXED's Avatar
Subaru Tech Division
Member
 
Join Date: Oct 2008
Location: Probably Fishing
Posts: 1,961
Thanks: 55
Thanked 56 Times in 45 Posts
REXXXED knows their stuff
Default

**saw

**more than
__________________
[COLOR="Red"][B]Need Finance for a new Car or Mortgage??? Call or email me today:[/b][/COLOR]
[b][color="BLUE"][url]http://www.themortgagegallery.com.au/find-a-broker/manager/sam-zurzolo.aspx[/url][/b][/COLOR]
Reply With Quote
  #28  
Old 08-12-2011, 10:51 AM
ewrxion87's Avatar
WRX Hi Five Club
Member
 
Join Date: Oct 2011
Location: Perth
Posts: 294
Thanks: 17
Thanked 3 Times in 3 Posts
ewrxion87 at standard level
Default

thanks mate
i should of used pictionary to check my spelling......wait wait....i mean dictionary

Quote:
Originally Posted by REXXXED View Post
**saw

**more than
__________________
Ewrxion87

P-West TMIC / ecutek / HF CAI / Turbosmart / Apexi / Federal / 19psi / bc racing & whiteline / Perrin Performance / Rays
Reply With Quote
  #29  
Old 08-12-2011, 11:27 AM
Kato's Avatar
Burnout!
Member
 
Join Date: Jul 2005
Location: Pimp Corner
Posts: 7,099
Thanks: 7
Thanked 120 Times in 75 Posts
Kato is a guruKato is a guru
Default

I would have maximum front camber (-1.5 to 2 deg) maximum rear camber (-1 deg), maximum front castor, front toe at 0, rear toe slightly in for stability.

I would also avoid excessively low cars as dropped on the floor actually makes your handling worse.

Suspension doesn't need to be super soft. Rock hard is useless unless you are running slicks. A nice medium comfort and stiffness is what you want. As for what that is, you need to find that out as it is a driver preference. All you need to do is change your damping knob. Spring rate is set as you already have springs in there, etc etc.
__________________
[COLOR="Gray"]550Nm off a 2L... Just wish it was in the dak dak...[/COLOR]
Reply With Quote
  #30  
Old 08-12-2011, 11:41 AM
ewrxion87's Avatar
WRX Hi Five Club
Member
 
Join Date: Oct 2011
Location: Perth
Posts: 294
Thanks: 17
Thanked 3 Times in 3 Posts
ewrxion87 at standard level
Default

perfect, thanks kato... i get the general concept but when it comes to nitty gritty confusion sets in.

when im in Perth enxt i will fix this.if 0 is hardest and 30 is softest, i suppose the least i could do is meet half way at 15. im not 100% sure my coilovers allow camber at the rear unless i have camber bolts from factory.. my fronts no issue.

as for it low wise - on the flat its about a coke can plus a finger n abit... from the centre of the body kit

cheers

Quote:
Originally Posted by Kato View Post
I would have maximum front camber (-1.5 to 2 deg) maximum rear camber (-1 deg), maximum front castor, front toe at 0, rear toe slightly in for stability.

I would also avoid excessively low cars as dropped on the floor actually makes your handling worse.

Suspension doesn't need to be super soft. Rock hard is useless unless you are running slicks. A nice medium comfort and stiffness is what you want. As for what that is, you need to find that out as it is a driver preference. All you need to do is change your damping knob. Spring rate is set as you already have springs in there, etc etc.
__________________
Ewrxion87

P-West TMIC / ecutek / HF CAI / Turbosmart / Apexi / Federal / 19psi / bc racing & whiteline / Perrin Performance / Rays
Reply With Quote
Reply

Tags
happy, stiff, tail, thing

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
Things that make me happy v1.0 Saint_23 Non-WRX Discussion 8630 08-05-2014 01:14 PM
Happy Birthday JME teejay Non-WRX Discussion 29 04-09-2006 02:03 PM
FS: WRX pair of rear tail lights for urgent sale $250 ono evil For Sale 0 11-08-2006 11:34 PM
FS: LED Tail Lights for GC8 Sedan GETAGRIP For Sale 1 04-04-2006 04:02 PM
Swap: LED GC8 Tail Lights for STi Tail Lights GETAGRIP For Sale 2 10-03-2006 02:02 PM



Welcome to Perth-WRX, click here to register!

All times are GMT +8. The time now is 08:31 AM.


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