V1 Wheel Alignment for track
#1
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Those of you who track your V1s, what alignment specs are you running?
Do you leave your track settings for street?
This is where i'm at currently:
LF CAMBER. -2.0
RF CAMBER. -1.8
TOE -0.14 DEG. (not sure what this is in inches)
LR CAMBER. -2.7
RR CAMBER. -2.9
TOE -0.03
Stock 18X8.5 wheels, no spacers
245/40R18 NT-01s or RS-3s
Wears the inside rears as you would imagine. Seems too much rear camber even for the track.. what you guys think
Do you leave your track settings for street?
This is where i'm at currently:
LF CAMBER. -2.0
RF CAMBER. -1.8
TOE -0.14 DEG. (not sure what this is in inches)
LR CAMBER. -2.7
RR CAMBER. -2.9
TOE -0.03
Stock 18X8.5 wheels, no spacers
245/40R18 NT-01s or RS-3s
Wears the inside rears as you would imagine. Seems too much rear camber even for the track.. what you guys think
#2
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Don't know much about this myself. But cadillac faq has some info under "wheels and tires".
http://cadillacfaq.com/faq/index.html
http://cadillacfaq.com/faq/index.html
#3
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This was about the max I could get. My car is a bit lowered. Your probably at the max.
Front camber was adjusted to -1.8 Left Front and -1.9 Right Front (with me in the car) -1/32 toe each
Rear camber was adjusted to -2.3 Left Rear and -2.5 Right Rear (with me in the car) +1/16 toe each
Front camber was adjusted to -1.8 Left Front and -1.9 Right Front (with me in the car) -1/32 toe each
Rear camber was adjusted to -2.3 Left Rear and -2.5 Right Rear (with me in the car) +1/16 toe each
#4
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I did the "Aggressive Street."
Here's what the rest of the FAQ says:
Here are the most up to date values from the service manual... FG2's don't make a difference on the alignment settings... (June 10, 2006)
FE2, FE3, FE4
Front Suspension
Camber -0.50°± 0.60°
Camber Cross Tolerance ± 0.60°
Caster 5.10 ° ± 0.60°
Caster Cross Tolerance ± 0.60°
Total Toe 0.20° ± 0.20°
Steering Wheel Angle 0° ± 3.50°
Thrust Angle --
Rear Suspension
Camber -1.50° ± 0.50°
Camber Cross Tolerance ± 0.75°
Caster 5.10 ° --
Caster Cross Tolerance --
Total Toe 0.20° ± 0.20°
Individual toe to be greater than or equal to -0.00°
Steering Wheel Angle --
Thrust Angle 0° ± 0.20°
old settings
FRONT
Camber: Range: -1.0 to 0.0 / Optimal: -0.5
Caster: Range: 4.6 to 5.6 / Optimal: 5.1
Cross Camber: Range: -0.5 to 0.5 / Optimal: 0.0
Cross Caster: Range: -0.5 to 0.5 / Optimal: 0.0
Sum Toe: Range: 0.0 to 0.4 / Optimal: 0.2
Toe: Range: 0.0 to 0.2 / Optimal: 0.1
REAR
Camber FE1: Range: -0.6 to -1.4 / Optimal: -1.0
Camber FE3: Range: -1.0 to -1.8 / Optimal: -1.4
Cross Camber: Range: -0.75 to 0.75 / Optimal: 0.0
Sum Toe: Range: 0.0 to 0.40 / Optimal: 0.2
Toe FE1: Range: -0.05 to 0.24 / Optimal: 0.12
Toe FE3: Range: 0.0 to 0.24 / Optimal: 0.12
Trust Angle: Range: -0.15 to 0.15 / Optimal: 0.0 Note no FE4 entries... but they shouldn't be *too* far from the above. Based on the above ranges, what works well on my Z06, and looking up what M5 guys are running, i cobbled together some recommendations (haven't tried these... just MHO):
Track Front:
-2.2 degrees negative Camber (if you can get that much)
As much Positive caster as you can get without sacrificing camber.
Neutral (0) Toe to 1/16" Toe OUT Each, 1/8" Total Max. [1/16" Toe out = -0.06 deg]
Track Rear:
-2.2 degrees Negative Camber (if you can get that much)
1/8" Toe IN Each, 1/4" Total Toe IN [1/8" Toe in = +0.12 deg]
Rear Toe should never be Toe out (negative)
Aggressive Street Front:
-1.0 degrees negative Camber
As much Positive caster as you can get without sacrificing camber.
Neutral (0) Toe to 1/32" Toe IN Each, 1/16" Total Max. [1/32" Toe in = +0.03 deg]
Aggressive Street Rear:
-1.5 degrees Negative Camber
1/8" Toe IN Each, 1/4" Total Toe IN [1/8" Toe in = +0.12 deg]
Rear Toe should never be Toe out (negative)
Here's what the rest of the FAQ says:
Here are the most up to date values from the service manual... FG2's don't make a difference on the alignment settings... (June 10, 2006)
FE2, FE3, FE4
Front Suspension
Camber -0.50°± 0.60°
Camber Cross Tolerance ± 0.60°
Caster 5.10 ° ± 0.60°
Caster Cross Tolerance ± 0.60°
Total Toe 0.20° ± 0.20°
Steering Wheel Angle 0° ± 3.50°
Thrust Angle --
Rear Suspension
Camber -1.50° ± 0.50°
Camber Cross Tolerance ± 0.75°
Caster 5.10 ° --
Caster Cross Tolerance --
Total Toe 0.20° ± 0.20°
Individual toe to be greater than or equal to -0.00°
Steering Wheel Angle --
Thrust Angle 0° ± 0.20°
old settings
FRONT
Camber: Range: -1.0 to 0.0 / Optimal: -0.5
Caster: Range: 4.6 to 5.6 / Optimal: 5.1
Cross Camber: Range: -0.5 to 0.5 / Optimal: 0.0
Cross Caster: Range: -0.5 to 0.5 / Optimal: 0.0
Sum Toe: Range: 0.0 to 0.4 / Optimal: 0.2
Toe: Range: 0.0 to 0.2 / Optimal: 0.1
REAR
Camber FE1: Range: -0.6 to -1.4 / Optimal: -1.0
Camber FE3: Range: -1.0 to -1.8 / Optimal: -1.4
Cross Camber: Range: -0.75 to 0.75 / Optimal: 0.0
Sum Toe: Range: 0.0 to 0.40 / Optimal: 0.2
Toe FE1: Range: -0.05 to 0.24 / Optimal: 0.12
Toe FE3: Range: 0.0 to 0.24 / Optimal: 0.12
Trust Angle: Range: -0.15 to 0.15 / Optimal: 0.0 Note no FE4 entries... but they shouldn't be *too* far from the above. Based on the above ranges, what works well on my Z06, and looking up what M5 guys are running, i cobbled together some recommendations (haven't tried these... just MHO):
Track Front:
-2.2 degrees negative Camber (if you can get that much)
As much Positive caster as you can get without sacrificing camber.
Neutral (0) Toe to 1/16" Toe OUT Each, 1/8" Total Max. [1/16" Toe out = -0.06 deg]
Track Rear:
-2.2 degrees Negative Camber (if you can get that much)
1/8" Toe IN Each, 1/4" Total Toe IN [1/8" Toe in = +0.12 deg]
Rear Toe should never be Toe out (negative)
Aggressive Street Front:
-1.0 degrees negative Camber
As much Positive caster as you can get without sacrificing camber.
Neutral (0) Toe to 1/32" Toe IN Each, 1/16" Total Max. [1/32" Toe in = +0.03 deg]
Aggressive Street Rear:
-1.5 degrees Negative Camber
1/8" Toe IN Each, 1/4" Total Toe IN [1/8" Toe in = +0.12 deg]
Rear Toe should never be Toe out (negative)
#6
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This was about the max I could get. My car is a bit lowered. Your probably at the max.
Front camber was adjusted to -1.8 Left Front and -1.9 Right Front (with me in the car) -1/32 toe each
Rear camber was adjusted to -2.3 Left Rear and -2.5 Right Rear (with me in the car) +1/16 toe each
Front camber was adjusted to -1.8 Left Front and -1.9 Right Front (with me in the car) -1/32 toe each
Rear camber was adjusted to -2.3 Left Rear and -2.5 Right Rear (with me in the car) +1/16 toe each
^^
#7
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I am about to get my alignment done. I will be using the car for majority street driving with weekend canyon/trackday/cruises. Will aggressive street chew through my tires? I just bought brand new pilot super sports so I want to get the alignment right. I have H&R springs and rear camber adjustment arms.
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I'll see if I can find one of my alignment print outs when I get home this evening. I run a bit over -2 camber front and rear. As I recall, one of the alignment techs told me going any more than about -2.1 or so up front meant you had to start losing caster, so he didn't dial in any more negative camber.
My biggest question is the toe settings. Again, I'll have to look at the alignment print out when I get home, but I've always been confused about the inches vs. degrees conversion. All the alignment racks I've ever been on use degrees. I can't get the conversions provided in the FAQ (1/8" = 0.12deg) to work out mathematically - I don't understand how they arrived at that.
Based on my experience, I definitely concur with toe IN for the rear (so a + number). Toe OUT in the rear makes the car quite twitchy. YMMV, of course.
I've just left the track alignment on the car and haven't had any tire wear issues as of yet.
No.
What are those?
My biggest question is the toe settings. Again, I'll have to look at the alignment print out when I get home, but I've always been confused about the inches vs. degrees conversion. All the alignment racks I've ever been on use degrees. I can't get the conversions provided in the FAQ (1/8" = 0.12deg) to work out mathematically - I don't understand how they arrived at that.
Based on my experience, I definitely concur with toe IN for the rear (so a + number). Toe OUT in the rear makes the car quite twitchy. YMMV, of course.
I've just left the track alignment on the car and haven't had any tire wear issues as of yet.
No.
What are those?
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#10
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Unfortunately, your description isn't helping, as I'm not aware of anything that will allow you to adjust camber in the rear (well, other than the factory adjustment). Can you post a link? I'm curious what you've got.
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I was talking with Sean from Trinity Tek when I got my wheels and told him I wanted to be able to adjust the camber in the back and he sold me those. This was before I got up under the car and saw how much the stock camber can be adjusted without these. I don't know if these will even offer more adjustment than the stock stuff. I just wanted to make sure I could align the car correctly since it is lowered.
Will I be able to get the "Aggressive street" alignment with the stock suspension pieces lowered on H&R's? Is it even necessary to install these to get the camber right in the rear?
Last edited by GT Motion; 11-02-2012 at 10:01 PM.
#12
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They are these: http://www.bmrsuspension.com/?page=p...d=68&catid=201
I was talking with Sean from Trinity Tek when I got my wheels and told him I wanted to be able to adjust the camber in the back and he sold me those. This was before I got up under the car and saw how much the stock camber can be adjusted without these.
I was talking with Sean from Trinity Tek when I got my wheels and told him I wanted to be able to adjust the camber in the back and he sold me those. This was before I got up under the car and saw how much the stock camber can be adjusted without these.
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No, because they don't adjust camber.
#13
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They are these: http://www.bmrsuspension.com/?page=p...d=68&catid=201
Is it even necessary to install these to get the camber right in the rear?
Is it even necessary to install these to get the camber right in the rear?
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I believe so, but getting rear camber where it needs to be may be tough because of how much the H&Rs lower the car.
No, because they don't adjust camber.