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SuspensionTuning a Gt 3

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Old 10-27-2005, 08:06 PM
  #16  
vegasgolf98
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Rocket,

that is the stock settings-one from stiff front (5) and rear (4). But, mine is stock front and one from soft in the rear as my rear wheel was lifting on hard sweepers. Now, the car handles great. I also have stiffer springs and Motons. These settings can vary track by track. At California Speedway, I ran full soft-it was also wet). Cosmos runs soft and does great, so experiment and see where you like it. There is no right or wrong. That is the fun of having an adjustable sway bar.
Old 11-01-2005, 07:58 AM
  #17  
930man
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--------------------------------------------------------------------------------

I happen to have the infamous "Roland Kussumaul" settings... This is what I use. Here you go!

GT3 settings

Front axle:
Camber: -2.5º
Max camber difference, left/right: 5'

Toe total: +5'
Toe difference at 20° lock: -1°20' +/- 30'

Caster: 8° +/- 30'
Max caster difference, left/right: 30'

Front height: 115mm
Swaybar – 1 from hard

Rear axle:
Toe total: 35’ +/- 2'
Max toe difference, left/right: 5'

Camber: -2.3° +/- 5'
Max camber difference, left/right: 10'

Rear height: 128mm
Swaybar – 1 from hard



setting my car to theses specs this am
is there anything elses i should check or feel for in the handeling on the track this weekend.

I know this is not my old 997, but i would like that firm steering and planted feel i had with the 997 on the front end.
Old 04-09-2018, 11:35 PM
  #18  
Martin S.
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Originally Posted by ArcticFox
I also had this attached to the file. Dunno who Johnson is, but the settings look about the same...

JOHNSONS ALIGNMENT SETTING 19/2/04

FRONT
Camber -2.5º -2.5º
Caster +9.2 +9
Toe in total 1/16”
Fender Height 25 1/4”

REAR
Camber -.2.4º -2.4º
Toe in total 3/32
Fender Height 25”
Johnson's Alignment is the mother company for Suspension Specialities in Torrance, CA. The guru and owner is Steve Alarcon.
Old 04-10-2018, 09:48 AM
  #19  
177mph
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Reviving a thread from 2005. ..... You dug deep for that one!
Old 04-10-2018, 11:53 AM
  #20  
Martin S.
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Originally Posted by 177mph
Reviving a thread from 2005. ..... You dug deep for that one!
BTW, on the dyno in 5th gear, at 8000 RPM, my 993 speedo indicated 175 mph. The dyno operator was impressed.

I found the reference to Johnson's Alignment on a search. Since the owner has been pal of mine for 17 years and I know him to be a super alignment guy, I wanted to give him a plug....so when someone is searching for Johnson's Alignment, they'll have some added detail, city and state to be specific.

And besides, wifey is out of town, I have nothing but time on my hands as evidenced by THIS very post😁
Old 04-10-2018, 01:23 PM
  #21  
himself
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Originally Posted by 177mph
Reviving a thread from 2005. ..... You dug deep for that one!
ha! Old thread is back! Here’s another old (2006) alignment thread. Bob got the specs from Kussmaul - so they’re straight from the source.

https://rennlist.com/forums/996-gt2-...-settings.html

-td
Old 04-10-2018, 10:37 PM
  #22  
black04
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Originally Posted by Martin S.
....I found the reference to Johnson's Alignment on a search. Since the owner has been pal of mine for 17 years and I know him to be a super alignment guy, ....
FYI. In 2014 I discovered that the local dealer sent their alignment work to Johnson's and added over $100 to their cost.

Also, at the time, the tech did the whole job by hand. i.e. Without an alignment rack. I've watched my car aligned with and without the rack and I don't see any advantage to the hand job. Plus it took 2+ hours vs the 30 minutes with a rack. OTOH the cost was pretty low for Los Angeles. Maybe a $XX,XXX rack system simply adds to the cost of the job
Old 04-11-2018, 12:31 PM
  #23  
cgfen
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Originally Posted by Martin S.
BTW, on the dyno in 5th gear, at 8000 RPM, my 993 speedo indicated 175 mph. The dyno operator was impressed.
I think most people would be impressed to see a 993 engine @ 8 grand!



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