Geometry Setup?
03 September 2010, 09:37 PM
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Geometry Setup?
Heyup,
looking at getting my geometry checked but wanted to know if what comes up on the check is good or needs changing?
I think my 2001 Bug WRX might have Prodrive settings as the front tyres wear on the inside edge and the handling is good...but to be fair, my previous car was a punto!LOL! 58BHP!!!!!
I know that the pictures say the ages of the scoobs but just want to know what you guys think?
Had a look around on the net and found some settings....
looking at getting my geometry checked but wanted to know if what comes up on the check is good or needs changing?
I think my 2001 Bug WRX might have Prodrive settings as the front tyres wear on the inside edge and the handling is good...but to be fair, my previous car was a punto!LOL! 58BHP!!!!!
I know that the pictures say the ages of the scoobs but just want to know what you guys think?
Had a look around on the net and found some settings....
Last edited by SmileyScooby; 03 September 2010 at 09:42 PM.
03 September 2010, 09:41 PM
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1. http://dl.dropbox.com/u/9512107/caralignment.jpg
2. http://dl.dropbox.com/u/9512107/geometry.jpg
3. http://dl.dropbox.com/u/9512107/scouk_alignment1.jpg
4. Off IWOC from a classic
Suspension
-"Prodrive" geometry settings
- 2 degrees front negative camber
5. http://www.mocomracing.com/dbimages/...gcastor800.JPG
6. A bit of useful info I found on NASIOC posted by Simon Lines of PRODRIVE
Quote:
Originally I used to recommend the same settings that we use in the UK,
For a DCCD-A car: -
Front Camber (make sure it's equal side to side)
Minimum -1° 10’ Preferred -1° 15’ "Track" -1° 20’ / -1° 30’
Front Toe-in (Total) Minimum 0° 02’ Preferred 0° 06’ Maximum 0° 10’
Front Caster Standard Subaru (more is good)
Rear Camber Standard Subaru (make equal side to side if at all possible)
Rear Toe-in (Total) Minimum 0° 06’ Preferred 0° 10’ Maximum 0° 14’
Thrust angle Minimum -0° 01’ Preferred 0° 00’ Maximum 0° 01’
Non DCCD-A car is the same accept: -
Front Toe-in (Total) Minimum 0° 00’ Preferred 0° 01’ Maximum 0° 03’
Rear Toe-in (Total) Minimum 0° 02’ Preferred 0° 6’ Maximum 0° 10’
These settings do fall into the stock Subaru "envelope" hence the recommendation that you "use stock settings" they are also conservative settings that are designed not to cause to much tire wear.
However, these are UK based setting's and they will reduce understeer, so in effect making the car more suited to a competent driver. They are NOT mine or Prodrive's recommendation for use in the USA
The following is the UK (United Kingdom) Fitting Procedure for the WR Sport Spring Package WRX03
1. Remove the front and rear struts and fit the road springs and re-assemble as per the workshop manual.
Note - Use of the official Subaru workshop manual!
2. The tyre pressures and suspension geometry MUST be set correctly to achieve the full benefit of the spring package. It is also important to settle the suspension so the geometry is set at the correct ride height.
a) Set the tyre pressures to:
Front 2.3 bar (33 psi)
Rear 2.2 bar (32 psi)
b) Settle the suspension by driving a few miles on the road.
c) Set the geometry to the prodrive settings
(as reproduced above)
3. Check the headlight alignment and reset if necessary as per the workshop manual.
Again this is the UK version and in no way a recomendation as to what you should be doing in the USA
If you have never had track experience, proper driver training (having a US driving licence does NOT constitute "proper driver training") and are an inexperienced driver you should as a matter of course enroll onto some kind of advanced driver training course.
It remains unfortunate that as it has already been said "Americans can't be counted on taking responsibility for anything these days" this (thankfully) is not 100% true, however the % that do think like this kind of ruin things for the % that don't...
Cheers
Simon
2. http://dl.dropbox.com/u/9512107/geometry.jpg
3. http://dl.dropbox.com/u/9512107/scouk_alignment1.jpg
4. Off IWOC from a classic
Suspension
-"Prodrive" geometry settings
- 2 degrees front negative camber
5. http://www.mocomracing.com/dbimages/...gcastor800.JPG
6. A bit of useful info I found on NASIOC posted by Simon Lines of PRODRIVE
Quote:
Originally I used to recommend the same settings that we use in the UK,
For a DCCD-A car: -
Front Camber (make sure it's equal side to side)
Minimum -1° 10’ Preferred -1° 15’ "Track" -1° 20’ / -1° 30’
Front Toe-in (Total) Minimum 0° 02’ Preferred 0° 06’ Maximum 0° 10’
Front Caster Standard Subaru (more is good)
Rear Camber Standard Subaru (make equal side to side if at all possible)
Rear Toe-in (Total) Minimum 0° 06’ Preferred 0° 10’ Maximum 0° 14’
Thrust angle Minimum -0° 01’ Preferred 0° 00’ Maximum 0° 01’
Non DCCD-A car is the same accept: -
Front Toe-in (Total) Minimum 0° 00’ Preferred 0° 01’ Maximum 0° 03’
Rear Toe-in (Total) Minimum 0° 02’ Preferred 0° 6’ Maximum 0° 10’
These settings do fall into the stock Subaru "envelope" hence the recommendation that you "use stock settings" they are also conservative settings that are designed not to cause to much tire wear.
However, these are UK based setting's and they will reduce understeer, so in effect making the car more suited to a competent driver. They are NOT mine or Prodrive's recommendation for use in the USA
The following is the UK (United Kingdom) Fitting Procedure for the WR Sport Spring Package WRX03
1. Remove the front and rear struts and fit the road springs and re-assemble as per the workshop manual.
Note - Use of the official Subaru workshop manual!
2. The tyre pressures and suspension geometry MUST be set correctly to achieve the full benefit of the spring package. It is also important to settle the suspension so the geometry is set at the correct ride height.
a) Set the tyre pressures to:
Front 2.3 bar (33 psi)
Rear 2.2 bar (32 psi)
b) Settle the suspension by driving a few miles on the road.
c) Set the geometry to the prodrive settings
(as reproduced above)
3. Check the headlight alignment and reset if necessary as per the workshop manual.
Again this is the UK version and in no way a recomendation as to what you should be doing in the USA
If you have never had track experience, proper driver training (having a US driving licence does NOT constitute "proper driver training") and are an inexperienced driver you should as a matter of course enroll onto some kind of advanced driver training course.
It remains unfortunate that as it has already been said "Americans can't be counted on taking responsibility for anything these days" this (thankfully) is not 100% true, however the % that do think like this kind of ruin things for the % that don't...
Cheers
Simon
Last edited by SmileyScooby; 03 September 2010 at 10:00 PM.
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