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Opinion on Michelin PS4S VS Michelin PS Cup2's

up4speed

Go Kart Newbie
Location
Long Island
Car(s)
2015 GTI
I am currently running the PS4S on street and track. I really liked them on the track, but not totally happy with the way they were wearing. I know that a big part of my issue is that the car can use more camber, but I am going to leave it stock for now. I drive it very fast on the track, but I'm generally a very smooth driver. I have about 6 track days on them, and the tire has an amazing amount of tread left, but the edges are wearing very quickly. I even run a little more pressure than I would like (38-40 hot), so I can preserve the edges a little better. On the last track day I did (New York Safety Track, a hard track on tires) the front right tire started to lose pieces off of the edge of the tread (in one small spot, see photo). I actually went out one more time, since it was the last session of the day and the damage was minimal, however, I drove VERY conservatively, and I also cut the 20 minute session a little short. After returning to the pits, I discovered that the same tire lost a lot more rubber off of the edge again! If it wasn't for the chunking, I feel like I could have easily done 2 or 3 more track days on that set of tires. Does anyone know why that happened? I was thinking that possibly the tires were heat cycled out. What do you guys think? If that was the case, do you think it's better to go with the Cup 2's? Will they handle heat better? If so, maybe they will actually last longer, since I'm more concerned that they can handle high heat and abuse rather than high street mileage. I considered buying the Hankook RS4's since they get very positive reviews for the way that I need them to perform, but nobody has them available at this time.
Thanks for any advice. I'm looking to make the move in the next day or two so I don't lose any track days coming up.
 

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Mini7

Autocross Champion
Location
Charlotte, NC
Car(s)
2017 GTi Sport PP
I used MPS4S for two seasons but I quickly added camber for this reason.

Going to a higher grip tire will cause the car to roll even more. If the track bug has bitten and you are going to do this for the long term, you will need to add camber. Running higher tire pressures will help a little.

A different tire with stiffer side walls will also help.
 

R Golf

Go Kart Champion
Location
Lenox, MA
I used MPS4S for two seasons but I quickly added camber for this reason.

Going to a higher grip tire will cause the car to roll even more. If the track bug has bitten and you are going to do this for the long term, you will need to add camber. Running higher tire pressures will help a little.

A different tire with stiffer side walls will also help.
This.

Your wear is actually very good for driving PS4's hard for 6 track days with no camber. I went from PS4S's to Cup 2's purely for more grip. I have -2.4 degrees camber. I noticed they were a bit faster but had no difference in wear. I was getting 4-5 days out of them with the camber (track & weather dependent).

I recently went to Falken 660's and am very happy with them. They grip as well as the Cup 2's, maybe better, are a lot cheaper, wear better, and hold heat better in a session and during a track day. I recently set new personal bests at Lime Rock and Summit Point both of which I have run numerous times with Michelins. They are not as good on the street as either the PS4's or the Cup 2s, but I find them acceptable and the trade-offs make it well worth it.
 

up4speed

Go Kart Newbie
Location
Long Island
Car(s)
2015 GTI
This.

Your wear is actually very good for driving PS4's hard for 6 track days with no camber. I went from PS4S's to Cup 2's purely for more grip. I have -2.4 degrees camber. I noticed they were a bit faster but had no difference in wear. I was getting 4-5 days out of them with the camber (track & weather dependent).

I recently went to Falken 660's and am very happy with them. They grip as well as the Cup 2's, maybe better, are a lot cheaper, wear better, and hold heat better in a session and during a track day. I recently set new personal bests at Lime Rock and Summit Point both of which I have run numerous times with Michelins. They are not as good on the street as either the PS4's or the Cup 2s, but I find them acceptable and the trade-offs make it well worth it.
Thanks for the Falken 600 recommendation. It sounds like a win/win if they are cheaper, last longer and stick better!!
 

pseudorealityx

Go Kart Champion
Location
Decatur, GA
Car(s)
2017 GTI SE
Some form of camber adjustment will pay for itself VERY quickly in terms of tire wear. What is keeping you from modifications? There's a few ways to get more camber. From the simplest of just replacing the front LCA bushings with offsets (it's 5 all easy to get to bolts), to the CS knuckles if you don't trust non-oem solutions, to actual camber plates, which would provide the best adjust-ability.
 

up4speed

Go Kart Newbie
Location
Long Island
Car(s)
2015 GTI
Some form of camber adjustment will pay for itself VERY quickly in terms of tire wear. What is keeping you from modifications? There's a few ways to get more camber. From the simplest of just replacing the front LCA bushings with offsets (it's 5 all easy to get to bolts), to the CS knuckles if you don't trust non-oem solutions, to actual camber plates, which would provide the best adjust-ability.
I guess it's that I wanted to keep the drivability and stock feel on the street. To be honest, I didn't know anything about the lower control arm offset bushings. This sounds pretty interesting. I always thought that camber plates were my only option.
Will the offset bushings affect the day to day drive, or steering feel in any way? Is it easy to do, and will I need an alignment afterwards? Please give me any info you can, along with links to the bushings if you can. I really appreciate any help! I wasn't too into modifying it, but I'm also not totally opposed, if it will still feel stock, and extend the life of the tires substantially.
 

Half fast

Go Kart Newbie
Location
Chicago
Car(s)
Mk7 GTI
Some form of camber adjustment will pay for itself VERY quickly in terms of tire wear. What is keeping you from modifications? There's a few ways to get more camber. From the simplest of just replacing the front LCA bushings with offsets (it's 5 all easy to get to bolts), to the CS knuckles if you don't trust non-oem solutions, to actual camber plates, which would provide the best adjust-ability.

100% Good chance that it pays for itself on the first set of tires, depending on what route you go and what tires you use.

I've got fixed camber plates installed and they gave me 2.5 degrees of camber in the front (extra 1.5 degrees) without making any real difference in how the car drove on the street. I do have solid or poly bushings all around and engine/transmission mounts though, so it might be harder for me to tell a difference than it would be on an otherwise stock car. So, those are another option as well. The only difference I noticed is that the car has a tendency to get "stuck" in the tire tracks/ruts on the highway more than it used to before. But, even that is barely noticeable and only on the most uneven highways.
 
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