Larger tires
03-14-2015, 08:02 AM
#3
03-14-2015, 08:36 AM
#4
Burning Brakes
I went one size larger and have not lost any MPG, I don't rub on my driveway like it used to, tires fill up the wheel wells better. I happy with the choice I made.
03-14-2015, 10:56 AM
#7
Do the math, and will find that the 18/19 and 19/20 OD tires sizes are the pretty close to the same between the z06 and ZR-1. Hence rim gets bigger for the bigger rotors, but the tire walls gets smaller instead.
If you mean width, then increase traction with more contact to the ground, so long the wider tires are not ballooning on the rims that may to wide for a narrow rim, and since you have more spun weight, lose in MPG.
03-14-2015, 02:31 PM
#9
03-14-2015, 06:13 PM
#10
Banned Scam/Spammer
I just went up from the Michelin Pilot Sport PS2 ZP 285/30/19 to the Michelin Pilot Sport PS2 305/30/19 and they look awesome, IMO they do. They look mean from the sides, front, back and they weigh 2lbs less than the smaller size Run Flats, so larger tire but less weight.
The main concern is this, if you want bigger tires and you like them, then that is that. It is about what YOU like and want not the rest of us.
The main concern is this, if you want bigger tires and you like them, then that is that. It is about what YOU like and want not the rest of us.
03-14-2015, 06:57 PM
#11
Banned Scam/Spammer
Just a friendly reminder, it seems like common sense, it is common sense but sometimes common sense does not come to us until a later time and place than when we need it.
So with that said, make sure regardless what size or type of tires or wheels you go with, make sure the AIR PRESSURE is what is recommended for the car, I believe it is 30 or 31 pounds, not sure, which ever it is, is what I have always run, well, when I put my new rear tires on after I had them mounted I forgot to check.
The first drive on my new tires on dry pavement felt like I was on ice, I was spinning the rear tires and sliding sideways with just a little of throttle, got home, checked the tire pressure, as I thought, way too high.
That has been fixed but I have not had a chance to test them again but I hope that fixed that problem. We all know to check it and I know the TPMS will tell us if it is low but not sure if they tell us they are too high.
So with that said, make sure regardless what size or type of tires or wheels you go with, make sure the AIR PRESSURE is what is recommended for the car, I believe it is 30 or 31 pounds, not sure, which ever it is, is what I have always run, well, when I put my new rear tires on after I had them mounted I forgot to check.
The first drive on my new tires on dry pavement felt like I was on ice, I was spinning the rear tires and sliding sideways with just a little of throttle, got home, checked the tire pressure, as I thought, way too high.
That has been fixed but I have not had a chance to test them again but I hope that fixed that problem. We all know to check it and I know the TPMS will tell us if it is low but not sure if they tell us they are too high.
03-14-2015, 07:22 PM
#12
I just went up from the Michelin Pilot Sport PS2 ZP 285/30/19 to the Michelin Pilot Sport PS2 305/30/19 and they look awesome, IMO they do. They look mean from the sides, front, back and they weigh 2lbs less than the smaller size Run Flats, so larger tire but less weight.
The main concern is this, if you want bigger tires and you like them, then that is that. It is about what YOU like and want not the rest of us.
The main concern is this, if you want bigger tires and you like them, then that is that. It is about what YOU like and want not the rest of us.
03-14-2015, 07:32 PM
#13
Le Mans Master
Just a friendly reminder, it seems like common sense, it is common sense but sometimes common sense does not come to us until a later time and place than when we need it.
So with that said, make sure regardless what size or type of tires or wheels you go with, make sure the AIR PRESSURE is what is recommended for the car, I believe it is 30 or 31 pounds, not sure, which ever it is, is what I have always run, well, when I put my new rear tires on after I had them mounted I forgot to check.
The first drive on my new tires on dry pavement felt like I was on ice, I was spinning the rear tires and sliding sideways with just a little of throttle, got home, checked the tire pressure, as I thought, way too high.
That has been fixed but I have not had a chance to test them again but I hope that fixed that problem. We all know to check it and I know the TPMS will tell us if it is low but not sure if they tell us they are too high.
So with that said, make sure regardless what size or type of tires or wheels you go with, make sure the AIR PRESSURE is what is recommended for the car, I believe it is 30 or 31 pounds, not sure, which ever it is, is what I have always run, well, when I put my new rear tires on after I had them mounted I forgot to check.
The first drive on my new tires on dry pavement felt like I was on ice, I was spinning the rear tires and sliding sideways with just a little of throttle, got home, checked the tire pressure, as I thought, way too high.
That has been fixed but I have not had a chance to test them again but I hope that fixed that problem. We all know to check it and I know the TPMS will tell us if it is low but not sure if they tell us they are too high.
03-14-2015, 08:56 PM
#16
Race Director
I went to 285\345 pilot super sports on my GS. Compared to the stock Goodyears, there is a massive amount more grip, but that is largely a function of the tire compound itself, stock size Michelin would have given similar gains.
I saw a slight decrease in fuel economy, I can get up to 25 5 to 26 in the highway, my z 51 c6 did 28 or 29. There is a noticeable difference in handling, the car feels like it turns in slower, but has more grip. For street use, it's totally a pointless endeavor, but it has a slight advantage if you are going to have your car on a road course.
Smaller tires of better compound will perform better than wider but worse tires. So if you are considering going with the big Invo, you will find that you're not going to see a big improvement in grip.
I saw a slight decrease in fuel economy, I can get up to 25 5 to 26 in the highway, my z 51 c6 did 28 or 29. There is a noticeable difference in handling, the car feels like it turns in slower, but has more grip. For street use, it's totally a pointless endeavor, but it has a slight advantage if you are going to have your car on a road course.
Smaller tires of better compound will perform better than wider but worse tires. So if you are considering going with the big Invo, you will find that you're not going to see a big improvement in grip.
03-14-2015, 09:39 PM
#17
Banned Scam/Spammer
Yes by a little, not the width but rather the diameter changes the speed odometer. Now this can be fixed by having a tuner or a transmission tuner or a Diablo or similar where you can go in and correct that.
Anything over brand new and stock tires will impact the speed odometer, bald tires will impact it.
When you say you want to go up a size, what do you mean exactly? Up as in wheel diameter such as on mine it came with 18 Front and 19 Rear, so up can mean 19 Front and 20 Rear. Or up can mean stock 285/30/19 rear to 305/30/19 rear. Can you tell me which you mean?
Anything over brand new and stock tires will impact the speed odometer, bald tires will impact it.
When you say you want to go up a size, what do you mean exactly? Up as in wheel diameter such as on mine it came with 18 Front and 19 Rear, so up can mean 19 Front and 20 Rear. Or up can mean stock 285/30/19 rear to 305/30/19 rear. Can you tell me which you mean?
03-14-2015, 09:42 PM
#18
Banned Scam/Spammer
I cant say if they perform better yet, my weather has been crappy and the first test drive they were over inflated and was slippery as ice, I think that was the New Tire oils and over inflation, and a cool road and tire. Will have to defer that question for now.
03-14-2015, 09:46 PM
#19
Yes by a little, not the width but rather the diameter changes the speed odometer. Now this can be fixed by having a tuner or a transmission tuner or a Diablo or similar where you can go in and correct that.
Anything over brand new and stock tires will impact the speed odometer, bald tires will impact it.
When you say you want to go up a size, what do you mean exactly? Up as in wheel diameter such as on mine it came with 18 Front and 19 Rear, so up can mean 19 Front and 20 Rear. Or up can mean stock 285/30/19 rear to 305/30/19 rear. Can you tell me which you mean?
Anything over brand new and stock tires will impact the speed odometer, bald tires will impact it.
When you say you want to go up a size, what do you mean exactly? Up as in wheel diameter such as on mine it came with 18 Front and 19 Rear, so up can mean 19 Front and 20 Rear. Or up can mean stock 285/30/19 rear to 305/30/19 rear. Can you tell me which you mean?
03-14-2015, 09:53 PM
#20
Banned Scam/Spammer
Here is something to look at, I found an actual chart a few days ago, trying to find it again for you.
What matters is overall wheel diameter not wheel or tire size separate of one another.
You can have a larger size wheel but a thinner tire and still have the same diameter and it will not change the accuracy. You can put a taller tire on the factory wheel and that will change the accuracy.
Your not going to get much lower of a profile than what the cars already have, you can but not a lot. So the overall diameter that makes the speed odometer read incorrectly.
oops, here is the link
http://www.tirerack.com/tires/tirete....jsp?techid=25
What matters is overall wheel diameter not wheel or tire size separate of one another.
You can have a larger size wheel but a thinner tire and still have the same diameter and it will not change the accuracy. You can put a taller tire on the factory wheel and that will change the accuracy.
Your not going to get much lower of a profile than what the cars already have, you can but not a lot. So the overall diameter that makes the speed odometer read incorrectly.
oops, here is the link
http://www.tirerack.com/tires/tirete....jsp?techid=25