Input Needed on Alignment
Thread Starter
Burning Brakes
Joined: May 2010
Posts: 754
Likes: 6
From: Fort Worth TX
Input Needed on Alignment
I am looking for some feed back from people using these alignment specs for their C6.
My question is what kind of tire wear are you getting? This is for my daily driver and I would like to get good tire wear.
Pfadt Corvette Alignment Recommendations
Performance Street
Front min max
Camber (deg) -0.7 -0.9
Caster (deg) 7.5 8.5
Total Toe -1/16" (0.17°) 0 (0°)
Rear
Camber (deg) -0.4 -0.6
Total Toe -1/16" (0.17°) 0 (0°)
Notes
These settings will provide good performance and good tire wear
My question is what kind of tire wear are you getting? This is for my daily driver and I would like to get good tire wear.
Pfadt Corvette Alignment Recommendations
Performance Street
Front min max
Camber (deg) -0.7 -0.9
Caster (deg) 7.5 8.5
Total Toe -1/16" (0.17°) 0 (0°)
Rear
Camber (deg) -0.4 -0.6
Total Toe -1/16" (0.17°) 0 (0°)
Notes
These settings will provide good performance and good tire wear
Race Director
Joined: Aug 2005
Posts: 13,592
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From: Hudson WI
NCM Sinkhole Donor
Team Owner
Joined: Sep 2000
Posts: 25,019
Likes: 2,712
From: Far NW 'burbs of Chicago
St. Jude Donor '13
There seems to be some disagreement among techs as to whether "-" toe is toe in or toe out. This shouldn't happen, but I've had different people with a lot of experience, give me different answers.
Someone else posted here that Pfadt means toe in when they use the -.
Sorry that I can only provide the question, not the answer.
Someone else posted here that Pfadt means toe in when they use the -.
Sorry that I can only provide the question, not the answer.
Burning Brakes
Joined: Dec 2001
Posts: 1,244
Likes: 13
From: Laguna Woods, CA
GP
Drifting
Joined: Feb 2006
Posts: 1,339
Likes: 1
From: Lake Delton (WI Dells) WI
Here's what I have mine aligned to (the bottom specs, obviously) and I don't have any issues with tire wear. I also have my Firehawk aligned to very similar specs and no abnormal wear either. It made a BIG difference in handling in both cars. It's excessive toe coupled with camber that will wear the edges, as it scuffs the tire as you drive.
Last edited by JRHAWK9; Jan 21, 2012 at 11:19 PM.
Safety Car
Joined: Feb 2008
Posts: 3,712
Likes: 3
From: TEXOMA
St. Jude Donor '08-'09
Here's what I have mine aligned to (the bottom specs, obviously) and I don't have any issues with tire wear. I also have my Firehawk aligned to very similar specs and no abnormal wear either. It made a BIG difference in handling in both cars. It's excessive toe coupled with camber that will wear the edges, as it scuffs the tire as you drive.
-Carl
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Thread Starter
Burning Brakes
Joined: May 2010
Posts: 754
Likes: 6
From: Fort Worth TX
There seems to be some disagreement among techs as to whether "-" toe is toe in or toe out. This shouldn't happen, but I've had different people with a lot of experience, give me different answers.
Someone else posted here that Pfadt means toe in when they use the -.
Sorry that I can only provide the question, not the answer.
Someone else posted here that Pfadt means toe in when they use the -.
Sorry that I can only provide the question, not the answer.
Drifting
Joined: Oct 2006
Posts: 1,340
Likes: 6
From: Redmond WA
My OEM alignment had a bit of toe-in up front, toe-out in the rear. It made the car turn in faster but it was also darty on uneven surfaces, and it also seemed to have more throttle sensitivity during cornering, almost too much for my skill level.
I'm running zero toe now front and rear, and while it definitely feels more deliberate in turn-in and in mid-corner throttle adjustability, it's a less nervous fit until I become a better driver. It's now probably more suited to a higher speed road course than a tight autocross, but it's also way more relaxed over uneven freeway pavement, the tire wear is way better, and the gas mileage has gone up significantly.
I'm running zero toe now front and rear, and while it definitely feels more deliberate in turn-in and in mid-corner throttle adjustability, it's a less nervous fit until I become a better driver. It's now probably more suited to a higher speed road course than a tight autocross, but it's also way more relaxed over uneven freeway pavement, the tire wear is way better, and the gas mileage has gone up significantly.
Safety Car
Joined: Dec 2009
Posts: 3,724
Likes: 9
hey guys! yes we have updated our alignment sheet to state that negative measurements indicated toe in, like negative camber is inwards as well (like normal), to keep it easy to remember. Take a look at the sheet below if any questions:
Burning Brakes
Joined: Nov 2009
Posts: 1,114
Likes: 42
From: California
With negative toe the car will want to wander a bit, with positive it will want to stay straight on it's own.
In my opinion camber is way underdone on these cars...unless you never push the car in the corners
You can get away with 1 degree in the front easily without any uneven wear. I was actually still wearing the outsides of my RE11's more than the inside at a degree(w/o track use).
I haven't played with the caster any at this point though. Anyone tried this? I believe mine is around 9 right now; seems to steer really well with that setting. But I also changed camber at the same time so I'm not real sure what made the difference in steering feel(I was at 7.5 previously). But the increase in camber gave me tons more mid corner grip in the front.
In my opinion camber is way underdone on these cars...unless you never push the car in the corners
You can get away with 1 degree in the front easily without any uneven wear. I was actually still wearing the outsides of my RE11's more than the inside at a degree(w/o track use).
I haven't played with the caster any at this point though. Anyone tried this? I believe mine is around 9 right now; seems to steer really well with that setting. But I also changed camber at the same time so I'm not real sure what made the difference in steering feel(I was at 7.5 previously). But the increase in camber gave me tons more mid corner grip in the front.
Tech Contributor
Joined: Oct 1999
Posts: 41,058
Likes: 9,820
From: Charlotte, NC (formerly Endicott, NY)
With negative toe the car will want to wander a bit, with positive it will want to stay straight on it's own.
In my opinion camber is way underdone on these cars...unless you never push the car in the corners
You can get away with 1 degree in the front easily without any uneven wear. I was actually still wearing the outsides of my RE11's more than the inside at a degree(w/o track use).
I haven't played with the caster any at this point though. Anyone tried this? I believe mine is around 9 right now; seems to steer really well with that setting. But I also changed camber at the same time so I'm not real sure what made the difference in steering feel(I was at 7.5 previously). But the increase in camber gave me tons more mid corner grip in the front.
In my opinion camber is way underdone on these cars...unless you never push the car in the corners
You can get away with 1 degree in the front easily without any uneven wear. I was actually still wearing the outsides of my RE11's more than the inside at a degree(w/o track use).
I haven't played with the caster any at this point though. Anyone tried this? I believe mine is around 9 right now; seems to steer really well with that setting. But I also changed camber at the same time so I'm not real sure what made the difference in steering feel(I was at 7.5 previously). But the increase in camber gave me tons more mid corner grip in the front.
I have my Z06 set up with a slight amount of toe in (+) in the front and rear with -1.2 deg camber in the front and -1 in the rear. Almost every Z06 I have seen wears out the outside edges of the rear tires even though they have a lot of negative camber. When I reduced the rear toe in to almost nothing the tires started wearing better on my car and I have no wander even when running EMTs.
Bill
Burning Brakes
Joined: Nov 2009
Posts: 1,114
Likes: 42
From: California
Assuming you mean toe out when saying negative toe will cause wander I agree.
I have my Z06 set up with a slight amount of toe in (+) in the front and rear with -1.2 deg camber in the front and -1 in the rear. Almost every Z06 I have seen wears out the outside edges of the rear tires even though they have a lot of negative camber. When I reduced the rear toe in to almost nothing the tires started wearing better on my car and I have no wander even when running EMTs.
Bill
I have my Z06 set up with a slight amount of toe in (+) in the front and rear with -1.2 deg camber in the front and -1 in the rear. Almost every Z06 I have seen wears out the outside edges of the rear tires even though they have a lot of negative camber. When I reduced the rear toe in to almost nothing the tires started wearing better on my car and I have no wander even when running EMTs.
Bill
Mid corner rear grip has been my biggest issue; but has actually seemed to improve a lot with the camber change to the front. I believe my corner speed has improved to the point where I'm not having to accelerate so much mid turn by keeping the roll speed up.
On freeway on ramps that go down hill, and tighten up at the end, I can hold way more speed with no fr. end push.
Bill- If your on the track a lot, try 2 degrees camber in the front
