S type alignment specs - after pothole damage FAQ
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Senior Member
Joined: Mar 2009
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From: Boston, USA
As promised, pics of the rim protectors on the Conti's. As you can see it's not extreme, but the tire clearly sticks out past the rim, enough to protect it from light scrapes. I imagine the rim would still touch if you really ran it against the curb.
JOsworth / Jon89, I agree that the load rating is of some concern, and I wish it were higher. That said, the combined load rating of all the tires is 5,908 pounds, and I would imagine that is spec'd as "normal" operation with momentary loads or impacts being higher. Given that cushion of 2,000lbs, I'm comfortable running the tires.
I'm eager to get the matching fronts to really evaluate handling. I've only had the car for a few months, and I'm already taking the onramps and offramps as fast as I do with my MR2 turbo. The DSC is kicking in on the front tires a bit so those are definitely the limitation - they are some nearly worn out Toyo's. I never push the MR2 to the limit because it's a snap-oversteer spin before you blink kind of car, but I'm pleased that I'm taking the two ton Jag around corners as fast as a sub 3,000 pound mid engine two seater.
JOsworth / Jon89, I agree that the load rating is of some concern, and I wish it were higher. That said, the combined load rating of all the tires is 5,908 pounds, and I would imagine that is spec'd as "normal" operation with momentary loads or impacts being higher. Given that cushion of 2,000lbs, I'm comfortable running the tires.
I'm eager to get the matching fronts to really evaluate handling. I've only had the car for a few months, and I'm already taking the onramps and offramps as fast as I do with my MR2 turbo. The DSC is kicking in on the front tires a bit so those are definitely the limitation - they are some nearly worn out Toyo's. I never push the MR2 to the limit because it's a snap-oversteer spin before you blink kind of car, but I'm pleased that I'm taking the two ton Jag around corners as fast as a sub 3,000 pound mid engine two seater.
Thanks for the pics, ya they are about the same as my Kumhos, maybe stick out a tad more, not sure. The only ones that I've seen that stick out significantly are the Bridgestone Potenzas. Ill probably go with them, I really need a pronounced curb guard, I parallel park alot.
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From: Raleigh, NC
Bull,
To greatly assist your parallel parking requirements, find yourself a set of four "curb feelers". Very popular back in the 1970s along with lowering the car to about a half-inch above the pavement and installing a steering wheel about the size of a dessert plate. The Chevy Impala or Ford Galaxie 500 were the cars of choice, along with the Cadillac DeVille series for those with a bit more spending money. Watch some of the old Cheech and Chong movies and you'll see what I mean....
Long before your time, I know....
To greatly assist your parallel parking requirements, find yourself a set of four "curb feelers". Very popular back in the 1970s along with lowering the car to about a half-inch above the pavement and installing a steering wheel about the size of a dessert plate. The Chevy Impala or Ford Galaxie 500 were the cars of choice, along with the Cadillac DeVille series for those with a bit more spending money. Watch some of the old Cheech and Chong movies and you'll see what I mean....
Long before your time, I know....
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Joined: Jan 2010
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From: modesto, ca
Hey Joe your weekend sounds like one I had last year. I was going home after a 12hr shift in the middle of the night. Everything was good until I was in the center lane of the freeway in the S.F. bay area and couldn't change lanes as I came up on a pot hole about 3ft. around. To say the least I hit it about 70mph. When I got to the side of the road I thought I just bent one rim. I then noticed that I didn't have a jack or lug wrench. Forgot, I just bought the car a month before, it's on 20's, & I'm two hours from home. Luck would have it I called a buddy with a car trailer to pick me up. While waiting some dozen other cars bent their wheels in the same hole. After getting home in the morning I found out I bent 3 wheels, ruined one tire, broke two belly covers, & broke the oil pan. $3000.00 worth of damage. Insurance paid for everthing then went after the state of california and got their money back. What a long night. Now everything needed to change a tire is back in the car.
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From: Boston, USA
I said screw my old set up (38 front, 41ish rear) and am going 42psi all the way around. I like it.
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Senior Member
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From: Boston, USA
Hey Joe your weekend sounds like one I had last year. I was going home after a 12hr shift in the middle of the night. Everything was good until I was in the center lane of the freeway in the S.F. bay area and couldn't change lanes as I came up on a pot hole about 3ft. around. To say the least I hit it about 70mph. When I got to the side of the road I thought I just bent one rim. I then noticed that I didn't have a jack or lug wrench. Forgot, I just bought the car a month before, it's on 20's, & I'm two hours from home. Luck would have it I called a buddy with a car trailer to pick me up. While waiting some dozen other cars bent their wheels in the same hole. After getting home in the morning I found out I bent 3 wheels, ruined one tire, broke two belly covers, & broke the oil pan. $3000.00 worth of damage. Insurance paid for everthing then went after the state of california and got their money back. What a long night. Now everything needed to change a tire is back in the car.
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Joined: May 2010
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From: NY, NY
Hey Joe your weekend sounds like one I had last year. I was going home after a 12hr shift in the middle of the night. Everything was good until I was in the center lane of the freeway in the S.F. bay area and couldn't change lanes as I came up on a pot hole about 3ft. around. To say the least I hit it about 70mph. When I got to the side of the road I thought I just bent one rim. I then noticed that I didn't have a jack or lug wrench. Forgot, I just bought the car a month before, it's on 20's, & I'm two hours from home. Luck would have it I called a buddy with a car trailer to pick me up. While waiting some dozen other cars bent their wheels in the same hole. After getting home in the morning I found out I bent 3 wheels, ruined one tire, broke two belly covers, & broke the oil pan. $3000.00 worth of damage. Insurance paid for everthing then went after the state of california and got their money back. What a long night. Now everything needed to change a tire is back in the car.
The state where a car is driven is always a big consideration for me when purchasing. It should be for most.
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From: Boston, USA
Driving around in NYC is a non-stop curse session for me. It's a disgrace how highways can be allowed to remain in such deplorable conditions with the monstrous taxes we pay here. I can't think of a single highway (perhaps the very small Clearview Expressway in Queens) where I'd feel secure in flooring the STR without concern for potholes, bumps, lumps, nooks, and crannies.
The state where a car is driven is always a big consideration for me when purchasing. It should be for most.
The state where a car is driven is always a big consideration for me when purchasing. It should be for most.
I would suggest going with a lower psi if your roads are that bad. I noticed there is alot more "shock" over potholes and bumps when I switched to a 42psi all around.
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From: Gilbert, AZ
Driving around in NYC is a non-stop curse session for me. It's a disgrace how highways can be allowed to remain in such deplorable conditions with the monstrous taxes we pay here. I can't think of a single highway (perhaps the very small Clearview Expressway in Queens) where I'd feel secure in flooring the STR without concern for potholes, bumps, lumps, nooks, and crannies.
The state where a car is driven is always a big consideration for me when purchasing. It should be for most.
The state where a car is driven is always a big consideration for me when purchasing. It should be for most.
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Joined: Aug 2010
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From: E.U.
the rear toe steers the car like a rudder on a boat. if not close to even it will scrub the tires (more wear, loss of mpg). if both rear tires point to the right, they will steer the car left, and visa versa. So I preffer them even(within a couple numbers is fine).
I like more toe in due to the fact that the road as you drive is trying to force out(toe out) the tires. What I recommend is what Ive found through experience over the years working on Jaguars (and alot of vehicles) that it gives the best tire wear, I dont like directional tires cause if you have a tire pull (more sever that a suspension drift) you can swap the tires side to side to counteract the affect. You have to brake down the tires and flip them on the rim and then move them. The reason I like alignments and recommend useing the machine as the tool it is and not the final answer for alignments. Is I service and look at the same customers cars month after month year after year. I know that if I did an alignment with new tires ( or rotated to get square rear tires up front)and a few months later they back for an oil change and I see irregular wear. I know 1 of 2 things. they hit something to knock out alignment...pothole, curb..or the tires dont like my previous alignment. (and I have pulled cars on the rack to check and adjust for free without saying anything to the customer, its about doing the right thing and learning, if what Im doing isnt doing what I thought it would I want to know it
This is how we discovered Stype had insufficient toe in.
I like more toe in due to the fact that the road as you drive is trying to force out(toe out) the tires. What I recommend is what Ive found through experience over the years working on Jaguars (and alot of vehicles) that it gives the best tire wear, I dont like directional tires cause if you have a tire pull (more sever that a suspension drift) you can swap the tires side to side to counteract the affect. You have to brake down the tires and flip them on the rim and then move them. The reason I like alignments and recommend useing the machine as the tool it is and not the final answer for alignments. Is I service and look at the same customers cars month after month year after year. I know that if I did an alignment with new tires ( or rotated to get square rear tires up front)and a few months later they back for an oil change and I see irregular wear. I know 1 of 2 things. they hit something to knock out alignment...pothole, curb..or the tires dont like my previous alignment. (and I have pulled cars on the rack to check and adjust for free without saying anything to the customer, its about doing the right thing and learning, if what Im doing isnt doing what I thought it would I want to know it
This is how we discovered Stype had insufficient toe in.
I have an 06 STR that I tend to drive fast in most of the time. I'm running PZero Rossos.
The front tires never last long, and I've read through most of this thread.
I have to change tires this week and before I go there, I would like to confirm the procedure:
Set the rear toe at negative 0.13 each side
Set the front camber at negative.05 both sides
Set the front toe at negative 0.13 each side
re-check the rear toe for negative 0.13 after doing the front
Keep castor at positive 0.05 both wheels
Is the above procedure correct?
At high speed cruising (120/130mph), won't the front tires heat up too much?
Many thanks
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From: Yorkshire, England
First thing I noticed was your idea for the front of negative toe when I'd say positive i.e. toe IN.
Why would the tyres heat up as you describe - you would be following the handbook on pressures, right?
Why would the tyres heat up as you describe - you would be following the handbook on pressures, right?
Brutal, I know recently you posted the new "corrected" specs for a four wheel but I can't seam to find it... I'll keep looking.
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