Michelin Pilot Sport 4 All Season now available

[dredgeguy]

I saw this on the Corvette forum and checked with Costco today......it is true! They have our standard sizes, 275/40/17 for $205.99 and the rears 315/35/17 at $312.00. With mounting, balancing, road hazard warranty, old tire disposal and tax the complete set is $1047.68 when you get the $150 off which is every other month. The PS2's which are a summer tire is $1486 and has a 20,000 mile warranty. The PS4's are all season and have a 45,000 mile warranty.

[brentoleary]

did you find this in store? I don?t see them online. Guess I?ll go in tomorrow at lunch and see if they can get them in TX. My old pilot sports have about 1500 miles on them, but are 10+ years old, so time for some new shoes.

[dredgeguy]

I had the store check, this was also news to them so it must be a very recent addition by Michelin. Good for those of us who still have 17" rims. Costco can special order them and will have them in 2-3 days at least here in Maryland.

[brentoleary]

Thanks! Stopped in to check and looks like they can get them. Just waiting til next week when the Michelin rebate goes live.

[dredgeguy]

Go buy them now and keep your receipt. They will honor all discounts for 30 days so you can buy now and get the rebate as long as it is within 30 days.

[DRM500RUBYZR-1]

Costco $150.00 off starts April 13, 2022.
Terms state they must install them.
:cheers:
Marty

[NVRL8TE]

Id like to try these!

As a side note, the TOYO TIRE EXTENSA HP II carries our sizes, and I can verify that they worked GREAT on my base model Vettes in ALL conditions, including a freeway with an inch of slush on it at 70 MPH. They are very budget friendly as well.

[Matt B]

Do the Michelin have a proper speed index?

[Kevin]

Great info!

[tnse]

For anyone who is able to pick up the Michelin PS AS4 for their Corvette, if they could give their opinion/review especially comparing them to other options like the GY GSD3, PS2, Nittos, etc. it?d be helpful.

The PS AS4 seems to the the OEM tires for the C8 so it?d be good to know how they do on the C4. This link is a review of the tires on the C8:
https://youtu.be/lm6342C4CRo

Here is the Michelin link video:
https://youtu.be/G7piMRtOzTk

The PS AS4 isn?t brand new. It?s been out on the C8 for a while. But the 315 size is new for the C4 ZR-1 which makes it a new option for ZR-1 owners. If anyone can provide a review if they use them on a C4 it?d be great information for users here.

Given that Michelin is now the partner for the Corvette brand (supplanting Goodyear from the C4 era) I do wonder if that present day Corvette affiliation is the reason Michelin is now supplying the 315 tire size. Thoughts/opinions?

[mjszr1]

Just tried to buy Costco Redwood City, CA, and was denied. Said he couldn?t even find the AS4 much less anything the rear size. Only the PS2 in the front size. He said when it?s not available in the main system where you can also order online, the store has to order directly from their Michelin distributor. So maybe it?s regional based on what that regions? distributor has? I?ll try again different store close by then maybe one different county if that doesn?t work.

(edited to clarify I tried Costco)

[Kevin]

For anyone who is able to pick up the Michelin PS AS4 for their Corvette, if they could give their opinion/review especially comparing them to other options like the GY GSD3, PS2, Nittos, etc. it?d be helpful.

The PS AS4 seems to the the OEM tires for the C8 so it?d be good to know how they do on the C4. This link is a review of the tires on the C8:
https://youtu.be/lm6342C4CRo

Here is the Michelin link video:
https://youtu.be/G7piMRtOzTk

The PS AS4 isn?t brand new. It?s been out on the C8 for a while. But the 315 size is new for the C4 ZR-1 which makes it a new option for ZR-1 owners. If anyone can provide a review if they use them on a C4 it?d be great information for users here.

Given that Michelin is now the partner for the Corvette brand (supplanting Goodyear from the C4 era) I do wonder if that present day Corvette affiliation is the reason Michelin is now supplying the 315 tire size. Thoughts/opinions?

I can?t imagine that Michelin cars about roughly 7000 old 90s corvettes. I figure about 6000 ZR-1s still are out there and however many gs coupes there are. There must be a bigger market for them, I know mustang guys tend to go to a 315 rear on a 10.5? wheel. But there?s probably not a ton of them. Why did they decide to do this? I don?t know but I?m damned glad they did

[tnse]

Just tried to buy Redwood City, CA, and was denied. Said he couldn?t even find the AS4 much less anything the rear size. Only the PS2 in the front size. He said when it?s not available in the main system where you can also order online, the store has to order directly from their Michelin distributor. So maybe it?s regional based on what that regions? distributor has? I?ll try again different store close by then maybe one different county if that doesn?t work.
I?m not sure where you tried to buy the PS AS4s but you could try these online links:

Discount Tire:
https://www.discounttire.com/buy-tires/michelin-pilot-sport-all-season-4/p/89340/rearProduct/106962

Tire Rack:
https://www.tirerack.com/tires/tires.jsp?tireMake=Michelin&tireModel=Pilot+Sport+All+Season+4&frontTire=74YR7PSAS4&rearTire=135YR7PSAS4XL&vehicleSearch=true&fromCompare1=yes&autoMake=Chevrolet&autoYear=1990&autoModel=Corvette%20ZR1&autoModClar=

[mjszr1]

I?m not sure where you tried to buy the PS AS4s but you could try these online links:

Discount Tire:
https://www.discounttire.com/buy-tires/michelin-pilot-sport-all-season-4/p/89340/rearProduct/106962

Tire Rack:
https://www.tirerack.com/tires/tires.jsp?tireMake=Michelin&tireModel=Pilot+Sport+All+Season+4&frontTire=74YR7PSAS4&rearTire=135YR7PSAS4XL&vehicleSearch=true&fromCompare1=yes&autoMake=Chevrolet&autoYear=1990&autoModel=Corvette%20ZR1&autoModClar=

Oh, sorry to clarify tried to get at Costco Redwood City, I thought that was the OP subject but I see not. Yes if I can't get at Costco I'll definitely go either of these, I've used both before, thanks !!!

[dredgeguy]

Do the Michelin have a proper speed index?
They have a Y speed index 186mph/300kph

[Matt B]

Thanks, amazing news! I already got in touch with my uncle who's tire shop is Michelin prime partner (he owns it).

As soon as they are available in Europe I'll give them a try!

[emmvette]

Any thoughts on the what the differences are between the Pilot Sport PS2 (extreme summer tire) and the new Pilot Sport All Season 4?
What I can find online:

PS2: Summer tire, recommended for dry & wet pavement, NOT near freezing temperatures. 9.5/32" tread depth. UTQG = 220, 20,000 mile warranty, only available in 335/35/17 for rear - not 315/35/17. tire diameter is listed as 26 rather than 25.7, standard front size is available

AS4: All season including cold weather, wet, and light snow, 10/32" tread depth, UTQG = 540, 40,000 mile warranty, available in stock ZR-1 sizes.

Personally, I don't care about light snow use and 40,000 mile warranty vs 20,000. I drive my car mostly when nice, and not in the winter. I'm not knowledgeable on tire science, but what I want to know is will one of these tires keep it's soft rubber (ie. good traction) for more years than the other? I want my tires to still be good in 5 years rather than hard and dangerous. In this regard is one better than the other?

[Matt B]

I don't think any top notch Michelin tire gets hard and dangerous after 5 years.
Modern rubber compounds have come a long way and if treated the right way (no excessive parking in direct sunlight, etc) perform for a long time.
As far as Michelin is concerned I'd expect they use the best stuff available for their tires.

[emmvette]

@MattB, good thoughts. I'm thinking more in comparison to a Toyo Proxy R888 or Nitto NT01, both of them are UTQG 100 compound tires, considered quality tires, and do harden after a few years. They would be more similar to the compound used in the PS2 as it won't perform in the cold. I'm thinking there is enough difference in the tire compound used in in Toyo R888 / Nitto NT01 and the Michelin PS2 that the PS2 can be a good choice for a car that gets used under 3,000 miles / year.

[brentoleary]

Just tried to buy Costco Redwood City, CA, and was denied. Said he couldn?t even find the AS4 much less anything the rear size. Only the PS2 in the front size. He said when it?s not available in the main system where you can also order online, the store has to order directly from their Michelin distributor. So maybe it?s regional based on what that regions? distributor has? I?ll try again different store close by then maybe one different county if that doesn?t work.

(edited to clarify I tried Costco)

Same story for me in DFW Texas area - I went in to Costco last week and they gave me all the item numbers so I'd be ready as soon as the Michelin special started today. Unfortunately, when I went back today at lunch and tried to order I was told they are unavailable from the manufacturer. The sale goes on til May 17th. so maybe I'll try again or just go to Discount Tire when they have them in May.

[32ValveGuy]

Found the fronts but no rears at Costco in San Diego. They told me eta around June time frame for the rears

[32ValveGuy]

Tire rack has them but no rebate

[Kevin]

Same story for me in DFW Texas area - I went in to Costco last week and they gave me all the item numbers so I'd be ready as soon as the Michelin special started today. Unfortunately, when I went back today at lunch and tried to order I was told they are unavailable from the manufacturer. The sale goes on til May 17th. so maybe I'll try again or just go to Discount Tire when they have them in May.

What are the part numbers, if you have them handy

[brentoleary]

http://www.zr1.net/forum/album.php?albumid=511&pictureid=4700


http://www.zr1.net/forum/album.php?albumid=511&pictureid=4700


I took a picture if what they gave me - hoping you can see it in the link above.

If not the numbers were:

1441395 for the 275/40/17 AS4
1635830 for the 315/35/17 AS4

I plugged them in at costco.com and came up empty though so maybe it only means something to the tire dept.

[emmvette]

I called Michelin direct and asked about the tire; they have made two runs of the rear size now. A first smaller batch, then just finished up a run of 1,000 315/35/17 size. Within two weeks they have most all been allocated from their distribution centers. Obviously there is a need for this size, which is good for us.

Personally, I decided I'm going to pay a little more for the Pilot Sport PS2, as it is a better tire compound for how I drive. I don't need it to function in the cold or snow and I don't need a 40,000 mile tire. If it's nasty out, I'll drive my truck.

If you don't need those two things, the Pilot Sport PS2 is a better tire in terms of sticky traction. If you do drive in those conditions or like making a cross country trip and may need to cross a mountain pass in late spring or early fall when it could snow, the Pilot Sport A/S 4 is for sure a better tire.

I hope they don't wait too long before making another run of the 315's.

[tnse]

Here is a bit more information on the PS AS4 from Fitment Industries:

https://youtu.be/wIAqRPjQVKE

[Kevin]

http://www.zr1.net/forum/album.php?albumid=511&pictureid=4700


http://www.zr1.net/forum/album.php?albumid=511&pictureid=4700


I took a picture if what they gave me - hoping you can see it in the link above.

If not the numbers were:

1441395 for the 275/40/17 AS4
1635830 for the 315/35/17 AS4

I plugged them in at costco.com and came up empty though so maybe it only means something to the tire dept.

Thank you

[mjszr1]

...The PS4's are all season and have a 45,000 mile warranty.

FWIW, I don't think I saw this mentioned yet ... reading the fine print on the Michelin site sounds like ZR-1 folks will get 22,500 mile warranty (half mileage) instead because they can't be rotated:

"Split fitments ? If your vehicle has tires of different sizes on the front versus the rear axles, your tires cannot be rotated as recommended. Therefore, the mileage warranty on each rear tire will cover half the number of miles as the standard mileage warranty for that particular tire line."

*https://www.michelinman.com/auto/tires/michelin-pilot-sport-all-season-4

[tnse]

Researching, I found that Corvette Forum has a good write up on the PS AS4 from when the tire was introduced for the C8 (including some related videos). It seems that while the tire line has been out for a while (hence the intro on the C8 that has been out a few years now) it is the 315 rear size that is new and important for C4 ZR-1. See the link below:

https://www.corvetteforum.com/articles/michelin-pilot-sport-all-season-4-tires-review/

I think the following quotes from the article are the most interesting ones:

All-Season 4 Michelins are no standard summer tire . . . Hell, they're grippier than plenty of name-brand summer tires while offering the flexibility of year-round safety and performance.

...I'm willing to wager these 'all-seasons' out-grip a lot of so-called summer tires.

Hell, if this tire had come out in the 80s or 90s, we would have hailed it as an amazing summer tire.

Obviously we are waiting to hear from a C4 ZR-1 owner who tries these on their car to get a real impression. But given that these are some of the most modern tires with the most up-to-date tire technology, is there any guess on how they will compare the other tire options for the C4 ZR-1? For example how would this All Season modern Michelin tire compare with the following:


PS AS4 vs factory chosen C4 OEM tires (Goodyear Eagle Gatorback and Eagle GS-C)
PS AS4 vs later aftermarket Goodyear options (Goodyear F1 Eagle GSD3)
PS AS4 vs current aftermarket options (Toyo Proxes R888R - non street, Toyo Extensa HP II, Hoosier A7/R7 - non street, Nitto NT555 G2, Nitto Motivo)


Finally even with the mis-sized 335/35 width instead of the factory 315/35 sizes, how would the modern Michelin PS AS4 which were introduced in 2020 compare with old Michelin Pilot PS2 summer tires that were introduced in 2004? How much would 16 years difference make in performance?

[mjszr1]

Tire rack has them but no rebate

I just ordered a set today Tire Rack, normally when there is a rebate it shows directly on the tires, and nothing there.... Later tonight I came in via the following link:

https://www.tirerack.com/content/tirerack/desktop/en/landing-page/IMSA-Michelin-Laguna-Seca.html

and looks like tire rack will have a $70 rebate card for Michelin purchase 3/13-5/17.

** update 4/18 - contacted tire rack and looks like this was a Mid-Ohio promotion only, so I'm not sure why I was targeted with web page that had laguna seca my local CA track near by. If I can load up the rebate form I will but looks like only helpful to Ohio ZR-1 owners LOL

[HAWAIIZR-1]

These look and sound promising. I?m not crazy about the thread design and looks, but that?s not important in real world. I am on the fence since I don?t think I?ll really make use of the AS benefit. I?m still happy to see options for our cars and I guess they must be good if the C8 comes with them. I need to replace my old drag radials and this might be something to consider for sure. Good to see all the thoughts and excitement about these new tires.


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[spork2367]

Finally even with the mis-sized 335/35 width instead of the factory 315/35 sizes, how would the modern Michelin PS AS4 which were introduced in 2020 compare with old Michelin Pilot PS2 summer tires that were introduced in 2004? How much would 16 years difference make in performance?

I doubt it would vary much. The tread compound is a more critical factor. The PS2 ZP was the factory tire for the 2010 ZR1.

[tnse]

These look and sound promising. I?m not crazy about the thread design and looks, but that?s not important in real world. I am on the fence since I don?t think I?ll really make use of the AS benefit. I?m still happy to see options for our cars and I guess they must be good if the C8 comes with them. I need to replace my old drag radials and this might be something to consider for sure. Good to see all the thoughts and excitement about these new tires.


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See this video at about the 9:17 mark for impressions of the PS AS4 on the C8:

https://www.youtube.com/watch?v=a2MxuknropY&t=559s

The video is complimentary of of PS AS4 with some performance impressions (Gs while cornering, 0-60, braking, etc.) and even comparing it to the Bridgestone RE71R (on a different car) and Michelin Pilot 4S (on track in LV in dry on the C8) which are both full summer tires. I'm hoping what becomes evident or proven out is "All Season" doesn't mean less capable in summer but rather it just means more capable in winter - addition instead of subtraction. But we won't really know until someone actually can attest to how they work on the C4 - granted no one should be under the impression that the C4 is going to match the C8 in performance, handling, or capability no matter which tire they put on there, ZR-1 or not.

[tnse]

I just ordered a set today Tire Rack, normally when there is a rebate it shows directly on the tires, and nothing there.... Later tonight I came in via the following link:

https://www.tirerack.com/content/tirerack/desktop/en/landing-page/IMSA-Michelin-Laguna-Seca.html

and looks like tire rack will have a $70 rebate card for Michelin purchase 3/13-5/17.

** update 4/18 - contacted tire rack and looks like this was a Mid-Ohio promotion only, so I'm not sure why I was targeted with web page that had laguna seca my local CA track near by. If I can load up the rebate form I will but looks like only helpful to Ohio ZR-1 owners LOL

The information you provided should be helpful to the C4 community mjszr1. When are you expecting them to arrive and be installed? Let us know how they perform on your car and pictures are always great. Thanks.

[HAWAIIZR-1]

See this video at about the 9:17 mark for impressions of the PS AS4 on the C8:

https://www.youtube.com/watch?v=a2MxuknropY&t=559s

The video is complimentary of of PS AS4 with some performance impressions (Gs while cornering, 0-60, braking, etc.) and even comparing it to the Bridgestone RE71R (on a different car) and Michelin Pilot 4S (on track in LV in dry on the C8) which are both full summer tires. I'm hoping what becomes evident or proven out is "All Season" doesn't mean less capable in summer but rather it just means more capable in winter - addition instead of subtraction. But we won't really know until someone actually can attest to how they work on the C4 - granted no one should be under the impression that the C4 is going to match the C8 in performance, handling, or capability no matter which tire they put on there, ZR-1 or not.

Thanks for sharing. They sound awesome for our car to meet most needs. The best of many worlds for sure and I'm looking forward to hearing more or just ordering a set myself.

[dredgeguy]

For those who are interested, the Costco item numbers for the Pilot Sport AS4 are:

1441395 for the front 275/40ZR17 $205.99 each
1635830 for the rear 315/35R17 $312.99 each

The $150 discount for the purchase of 4 Michelin is going on now

[zyal8r]

FYI I was at my local Discount Tire yesterday getting a screw removed from a tire on my truck, and had them check on these Michelins. There is stock in Discount Tire's system, they could get them within a few days locally.

Mike

[mjszr1]

Just had the Pilot All Season 4's installed on new-to-me '90 ZR-1, here's what they look like if this is helpful to anyone at all. It's been 15 years since I had my Z51 C6, so I really don't have any basis of comparing them to anything folks have been running performance wise, but I was happy to see these become available for the stock wheels for all season 'grand touring'.

[tnse]

Just had them installed on new-to-me '90 ZR-1, here's what they look like if this is helpful to anyone at all. It's been 15 years since I had my Z51 C6, so I really don't have any basis of comparing them to anything folks have been running performance wise, but I was happy to see these become for 'grand touring'.

Congrats. You might be the first person to have this model on the C4 ZR-1! Great to see it documented. I can't quite tell but are the rear tires facing the same direction as the front? Any close up side views? By the way, what were the previous tires on the car?

[HAWAIIZR-1]

Just had them installed on new-to-me '90 ZR-1, here's what they look like if this is helpful to anyone at all. It's been 15 years since I had my Z51 C6, so I really don't have any basis of comparing them to anything folks have been running performance wise, but I was happy to see these become for 'grand touring'.



Thanks for sharing. I am still not crazy about the thread design and appearance, but I am sure it is a great tire as intended and more important than looks. They appear to be pretty narrow in comparison, but they are supposed to be all season tires. I can?t wait to hear how they performance, road noise, braking etc. are in these.


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[Kevin]

Just had them installed on new-to-me '90 ZR-1, here's what they look like if this is helpful to anyone at all. It's been 15 years since I had my Z51 C6, so I really don't have any basis of comparing them to anything folks have been running performance wise, but I was happy to see these become for 'grand touring'.

Did you go with the all seasons?

[32ValveGuy]

Just had them installed on new-to-me '90 ZR-1, here's what they look like if this is helpful to anyone at all. It's been 15 years since I had my Z51 C6, so I really don't have any basis of comparing them to anything folks have been running performance wise, but I was happy to see these become for 'grand touring'.

Which Costco did you purchase them from?

[spork2367]

The concern I would have with these tires is that the treadwear rating is over double that of the PS2. That is a relatively hard tire. The goal would be to find a tire that wears out around the same time as it ages out. With a treadwear rating of 540, these tires are going to be hard and look like new when they age out.

[mjszr1]

Which Costco did you purchase them from?

My Costco didn't have them when I wanted and I wanted to get them done - so Tire Rack online (had to installer in 2 days) / local installer.

[mjszr1]

Did you go with the all seasons?

Yes, I'll update my post - the All Season 4's

[mjszr1]

Congrats. You might be the first person to have this model on the C4 ZR-1! Great to see it documented. I can't quite tell but are the rear tires facing the same direction as the front? Any close up side views? By the way, what were the previous tires on the car?

Previous tires were mis-matched front to rear, something 10 years old, sorry I didn't remember more.

The tires are not directional - one side is marked 'outside'. So tread designed toward outside edge the the same on both sides but pointing forward on one side, in reverse on the other.

Here's a higher resolution (if it will upload intact) one side. I'm traveling can try to take better side picture of tire when back in a few days.

[32ValveGuy]

Finally available at Costco in San Diego

[tnse]

Finally available at Costco in San Diego

Were you able to obtain a set for your car? If so are you planning to put them on the factory wheels or on aftermarket wheels?

This page has a view of the PS AS4 width at 285 & 335 for the C7 (but not on a car): https://www.corvettegarage.com/c7-corvette-wheels/corvette-tires/michelin-pilot-sport-as3-zp-tires/

But it's always good to see them at the C4 ZR-1 sizes of 275 & 315 on the actual car.

This video has a view on the C4 L98 but on non-factory wheels: https://youtu.be/erqhdEmRPJ4

[32ValveGuy]

Were you able to obtain a set for your car? If so are you planning to put them on the factory wheels or on aftermarket wheels?

This page has a view of the PS AS4 width at 285 & 335 for the C7 (but not on a car): https://www.corvettegarage.com/c7-corvette-wheels/corvette-tires/michelin-pilot-sport-as3-zp-tires/

But it's always good to see them at the C4 ZR-1 sizes of 275 & 315 on the actual car.

This video has a view on the C4 L98 but on non-factory wheels: https://youtu.be/erqhdEmRPJ4

This Saturday the 14th I have my appointment at Costco to have them installed. The front have arrived but the rears have not yet. I will be using my factory stock rims. These will be replacing the 10 year old GY Eagle F1?s. I will be keeping the rears as spares.

[tnse]

This Saturday the 14th I have my appointment at Costco to have them installed. The front have arrived but the rears have not yet. I will be using my factory stock rims. These will be replacing the 10 year old GY Eagle F1?s. I will be keeping the rears as spares.


...Hope it goes well. It would be great to get your opinion/review/photos comparing your new PS AS4 tires to the Goodyear Eagle F1 tires (assumed GS-D3?) you mentioned are on your ZR-1 currently.

[32ValveGuy]

All went well with the install. The original TPMS is working fine. Only drove the car a little over 20 miles to get it back home. What I notice right away is that it is so much quieter inside the car. I can hear my wife talking now. I don?t know if that is a good or bad thing. I have attached some pics. I will keep you all posted on my driving impressions of the tires as I get some more driving time with it. Living in San Diego, Ca we don?t get much wet weather, but when we move to northern Az things will change. Sorry for the upside down pics , but I can?t get them to rotate.

[HAWAIIZR-1]

All went well with the install. The original TPMS is working fine. Only drove the car a little over 20 miles to get it back home. What I notice right away is that it is so much quieter inside the car. I can hear my wife talking now. I don?t know if that is a good or bad thing. I have attached some pics. I will keep you all posted on my driving impressions of the tires as I get some more driving time with it. Living in San Diego, Ca we don?t get much wet weather, but when we move to northern Az things will change. Sorry for the upside down pics , but I can?t get them to rotate.



Thanks for taking the time to share. Are those 315s on the rear?


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[32ValveGuy]

Thanks for taking the time to share. Are those 315s on the rear?


Sent from my iPhone using ZR-1 Net Registry (http://r.tapatalk.com/byo?rid=90383)

Yes, 315/35ZR17

[32ValveGuy]

Another rear pic upside down

[NVRL8TE]

Ive been running these for a few weeks now. Im very pleased with them. $1050 out the door.

[DRM500RUBYZR-1]

The picture of the rear tread looks as if these are not as wide as the Good Years which always appeared wider than the the other brands of 315's, and were indeed wider than some.
Does anyone have any factual or empirical data if anyone happens to have one of each?
Thanks,
:cheers:
Marty

[NVRL8TE]

The picture of the rear tread looks as if these are not as wide as the Good Years which always appeared wider than the the other brands of 315's, and were indeed wider than some.
Does anyone have any factual or empirical data if anyone happens to have one of each?
Thanks,
:cheers:
Marty

Tire Rack gives you all measurements.

[DRM500RUBYZR-1]

My eyesight remains fair.

The Michelins are 11.3 wide per tire rack spec.

The Good Years are 12.4 wide per walmart spec.

That is quite a difference!

AND, as someone mentioned earlier, the Michelins have a UTQG of 540 versus 280 for the GoodYears, also QUITE a difference.

Went through this before with sumitomo, vredestein, nitto,,,,,,,,,,,,,,,, etc.

:cheers:
Marty

[NVRL8TE]

I wonder what the weight difference is.

[tnse]

This Saturday the 14th I have my appointment at Costco to have them installed. The front have arrived but the rears have not yet. I will be using my factory stock rims. These will be replacing the 10 year old GY Eagle F1?s. I will be keeping the rears as spares.

@32ValveGuy:
Thank you for providing pictures of your car and informing others in the community of your experience so far. It's great seeing the new Michelins on the one year only 1990 wheels. (same shout out and kudos to @mjszr1) Is there an opportunity to show a "hood up" picture exposing the 275s in front for a view?

Also, given some of the points by others earlier, if you did keep the Eagle F1s (GS-D3s assumed) around, is there a chance to show a width comparison between the 2 (side by side or something)?

Also for anyone in the C4 ZR-1 community doing the research on these tires, here is a video from Tire Rack where they talk with the product manager at Michelin about the PS AS4 and the philosophy behind it: https://youtu.be/NhrUe7j4FVw

[HAWAIIZR-1]

Yes, 315/35ZR17



Thanks for the confirmation. They look so narrow so I had to ask.


Sent from my iPhone using ZR-1 Net Registry (http://r.tapatalk.com/byo?rid=90383)

[DRM500RUBYZR-1]

Both tires list the weight as 29 pounds.
:cheers:
Marty

[32ValveGuy]

Some more pics. Crap they are still upside down.

[spork2367]

Posted this in the other tire thread as well.

A couple observations:

On the Michelin website, the AS4 has pretty terrible reviews.

7 - 1 star reviews
7 - 2 star reviews
122 total reviews

Many of the 1 star reviews say the same thing, terrible wear and blowouts. A little scary for sure.

The PS2 on the other hand:

3 - 1 star reviews
1 - 2 star review
362 total reviews

Mostly comments about wear and ride quality. Both to be expected from an ultra high performance summer tire.

[WARP TEN]

Some more pics. Crap they are still upside down.

If you have an iPhone to take pictures with, it has a fixed orientation for its photos. If you have a Windows computer, open each photo in Paint, select "Rotate", then rotate left once, then rotate right once (or vice versa) and save. After doing that you can orient the pictures any way you want and they will stay that way. I do this all the time, but since I really only need it for the few pictures I post online or send out to friends, it is not a big deal. For most other simple photo editing on my Windows 10 computer I use Microsoft Office 2010. I would guess that there are other photo programs like Paint in non-Windows environments that can also eliminate the Apple fixed orientation.--Bob

[tnse]

Posted this in the other tire thread as well.

A couple observations:

On the Michelin website, the AS4 has pretty terrible reviews.

7 - 1 star reviews
7 - 2 star reviews
122 total reviews

Many of the 1 star reviews say the same thing, terrible wear and blowouts. A little scary for sure.

The PS2 on the other hand:

3 - 1 star reviews
1 - 2 star review
362 total reviews

Mostly comments about wear and ride quality. Both to be expected from an ultra high performance summer tire.

For those looking to read reviews (as of May 2022, across many vehicles) see these links:

Michelin 4.4 out of 5: https://www.michelinman.com/auto/tires/michelin-pilot-sport-all-season-4#ratings-reviews

Discount Tire 4.8 out of 5: https://www.discounttire.com/buy-tires/michelin-pilot-sport-all-season-4#read-reviews

Tire Rack: https://www.tirerack.com/tires/tires.jsp?tireMake=Michelin&tireModel=Pilot%20Sport%20All%20Season%204&tab=Sizes#RatingsReviews

Walmart 4.5 out of 5 : https://www.walmart.com/reviews/product/450965145

BigO Tires 4.6 out 5 : https://www.bigotires.com/tires/line/michelin/pilot-sport-as-4/prod5070069#

It?ll be good to hear from those here who have experience with various brand/models in this forum on what they are seeing on their cars. The community here and discussion helps people make better educated and informed decisions.

[32ValveGuy]

If you have an iPhone to take pictures with, it has a fixed orientation for its photos. If you have a Windows computer, open each photo in Paint, select "Rotate", then rotate left once, then rotate right once (or vice versa) and save. After doing that you can orient the pictures any way you want and they will stay that way. I do this all the time, but since I really only need it for the few pictures I post online or send out to friends, it is not a big deal. For most other simple photo editing on my Windows 10 computer I use Microsoft Office 2010. I would guess that there are other photo programs like Paint in non-Windows environments that can also eliminate the Apple fixed orientation.--Bob

Thanks for the assistance. I?ll give it a try

[Kevin]

Mine just got delivered and man are the beefy. Waiting to get them installed

[HAWAIIZR-1]

I did not think I would like these tires, but after putting them on the DD Benz I wish they had these available in 18 inch sizes for our car. I do not use my 17 inch wheels, but I can imagine some of you are going to like these and be very happy with them. Not many good choices in 18 inch tires these days too. [emoji22]

17962


Sent from my iPhone using ZR-1 Net Registry (http://r.tapatalk.com/byo?rid=90383)

[Kevin]

https://imgur.com/a/mFZGL7e


First pic is the rear ps4as

Second is the 555g2 mounted on factory 5 spokes

Third is the ps4as mounted on the same wheel

Fourth is the front ps4as

I don?t really push the car as hard as I used to but I can tell you they feel stable under cornering and will dead hook a stock zr-1 from a 5mph roll. The 555g2s would hunt for traction from the same speed. The Michelins are great, I?m very happy with them

[zyal8r]

Looks like these are turning out to be a great tire! It's nice to see this choice available, I think this is what I'm going to do on both my C4s. I was considering the Nittos, but, I like all the positive comments thus far on the Michelins.

[spork2367]

I did not think I would like these tires, but after putting them on the DD Benz I wish they had these available in 18 inch sizes for our car. I do not use my 17 inch wheels, but I can imagine some of you are going to like these and be very happy with them. Not many good choices in 18 inch tires these days too. [emoji22]

17962


What are the highlights of these in your experience so far?

Looks like these are turning out to be a great tire! It's nice to see this choice available, I think this is what I'm going to do on both my C4s. I was considering the Nittos, but, I like all the positive comments thus far on the Michelins.

Make sure you read the other reviews out there for those that have many more miles on these tires. The reviews across the board (3+ different resellers) are not great. Doesn't mean they won't work for a given driver, but a lot of the reviews would make me think twice.

[NVRL8TE]

Taken at a show.

[zyal8r]

Today we bought a set of these Michelins for our '17 Ford Flex Ecoboost. While it clearly isn't a Corvette, they are a lot better than the stock Hankooks on that car. Very quiet on the highway and I hit a few curves today to play with it. The car felt very flat (for a toaster!) and I like the tires. Likely to get a set for one of the C4s and see how I like them there before buying for both cars. I also have a set of Shelbys for the ZR-1 but would have to go with Continentals (which seem good) if I want to use them soon-ish, as BFGs seem to be on backorder. No matter what I do, it can't be any worse than the 19yr old F1 GSD3s on my '96 or the original GSCs on the ZR-1!

[tokuzumi]

The tires on the 94 I just bought are from 2013 in the rear and 2011 in the front. July is 3 paycheck month, so I'll reach out to my local tire shop to order a set in a couple weeks.

[tnse]

This link (below) shows a 1994 ZR-1 going through a full detail to bring back the paint finish. It shows what is possible with paint correction and protection. But the pictures do show the car with the Michelin Pilot Sport AS4 tires on factory wheels from multiple angles. This should help give a good idea on how they appear on the car. While a few of the initial pictures have a different set of Toyo Extensa tires, it seems most of the later ones show the PS AS4 in some detail. So it seems there was a change of the tires at some point starting with picture #56 in the process (unsure why). It does allow some visual comparison for those who are curious and want to know the differences (however slight) in the style/appearance (the average person will likely never notice the different look of tires on a car).

Picture #132 shows the width of the 315 rear tires on the car while picture #134 shows the appearance of the 275 front tires on the car. Picture #194 shows the set of 4 off the car.

https://v8speedshop.com/1994-chevrolet-corvette-zr1-nh/

For those interested in the detail and restoration process there is also a video:
https://youtu.be/O4gSLjSvHUc