Has the Vitour Tempesta P1 earned its place among 200tw benchmarks?

docwyte said:

In reply to dallasreed :

Are 245/40/18 and 315/30/18's going to be available?

315/30/18 Currently Available at www.AmericasVitourTire.com 

Looks like 245/40/18 is available for Pre Order

Looks like there's drama again on this.  Saw this on Facebook.

Discussed in the story this thread is linked to.

Note the date -- November.

In reply to Andy Hollis :

Ah, gotcha. Sorry.

Mentioned because mmaspec was mentioning availability through the company that is in the letter.

Apexcarver said:

In reply to Andy Hollis :

Ah, gotcha. Sorry.

Mentioned because mmaspec was mentioning availability through the company that is in the letter.

Yep.  Good to re-mention so no one gets caught out.

It is unclear yet what will happen with existing inventory at AVT, especially given claims that it may not be stored in optimal conditions.  Or what will happen with AVT pre-orders that are not likely to ever get filled, given the terms of the relationship.  The latter could easily be transferred to one of the other two big US distributors (Phil's Tire Service & VitourP1.com) if AVT is willing.

For sure, VitourP1 has the most current information on their web site.  AVT has not always been forthcoming with correct/current info.

Looks it's happening for street classes. Which is cool. What is the P1+?

Also, is there an ETA of the long term review. Would love to read that before pulling trigger on a set of these over A052 for a CST car (brz). 

Can you please share P1 tire pressures used in this test? 

Tom77 said:

 

Looks it's happening for street classes. Which is cool. What is the P1+?

Also, is there an ETA of the long term review. Would love to read that before pulling trigger on a set of these over A052 for a CST car (brz). 

All of the new sizes which just arrived this month are marked P1+.

It's the exact same tire, though. 

They may undo this in the future as for our market it is confusing, especially in light of actual updates like RT660+.

As for long term testing, that takes...a long time. 

It's literally me keeping track of lap times over several months of use.  We did something similar a couple years ago with CRSv2 and RT660.  Doing it again with TAP and P1.

arvi said:

Can you please share P1 tire pressures used in this test? 

24 psi cold -> 28 warm.

FWIW my P1s are on the way. I need to give the Sport Cup 2s on the C7Z a Viking funeral and roast them off, then I'll make with the Vitours and see how they go! 

Tom77 said:

Also, is there an ETA of the long term review. Would love to read that before pulling trigger on a set of these over A052 for a CST car (brz). 

Andy hasn't had his set for very long, and I'm getting a set for the BMW as well, so we'll both be reporting in on wear profiles as we use them. From what I'm hearing, though, they handle multiple heat cycles very well. 

My set of P1s are also on their way. They'll be replacing my RE71RSs, which I've been very happy with.

Meaty bois

Those tires are the widest shoes in the picture!

Andy Hollis said:

Tom77 said:

 

Looks it's happening for street classes. Which is cool. What is the P1+?

Also, is there an ETA of the long term review. Would love to read that before pulling trigger on a set of these over A052 for a CST car (brz). 

All of the new sizes which just arrived this month are marked P1+.

It's the exact same tire, though. 

They may undo this in the future as for our market it is confusing, especially in light of actual updates like RT660+.

As for long term testing, that takes...a long time. 

It's literally me keeping track of lap times over several months of use.  We did something similar a couple years ago with CRSv2 and RT660.  Doing it again with TAP and P1.

For autocross use. I imagine Yoks are still king. Since they require no heat to make them stick. Unlike P1s. 

Tom77 said:

For autocross use. I imagine Yoks are still king. Since they require no heat to make them stick. Unlike P1s. 

I'm going to be curious how things shake out over the summer when ambient is 90+ and surface temps are 120+. Yoks absolutely need supplemental cooling at that point, especially with multiple drivers. Will that be the sweet spot for the P1s?

When autocrossing pointy-end 200tw tires, it's all about heat management.  How much do they need, how much do they tolerate and how can those challenges be mitigated.

In addition to the obvious contributor of ambient temps, you also have to factor 1 vs 2 drivers, tire size to vehicle weight, tread depth, driving style and a host of other things.

Some of those factors can be controlled directly, some cannot.

Choose wisely to match your use case with the appropriate tire at the appropriate tread depth.

In reply to Andy Hollis :

OK, so you be at the 2026 Challenge and I'll give you three runs in a 300HP, 2000# car on 305/30/15 Vitours........cuz you can figure it out a damn sight quicker then I can.

That, or I'll put in on Hohos...

In reply to Andy Hollis :

To be more specific a CST 2nd generation 86. Single driver. Out in New England (weather is all over the place during the season). 245/40/17 on a 17x9 with no shaving. 
 

Solely autocrossing, no track use. Let me know if there are other variables you need to factor in. I imagine for this use case A052 is best suited?

Run quantity, length, and down time between runs are the other major factors...maybe even more important than general weather conditions honestly. If you have long courses with lots of runs and quick turnaround times, high heat tolerance tires are going to make things way easier with minimal downside until you get surprise rain. Shorter runs, fewer runs, and long turnaround times and the "instant on" quality becomes way more critical.

Have some 195-50-15 P1's ordered for my laid back underdog HS Sunday fun times.

 Hopefully they work well with stock camber and rolly polly stock strut suspension :)

Tom77 said:

In reply to Andy Hollis :

To be more specific a CST 2nd generation 86. Single driver. Out in New England (weather is all over the place during the season). 245/40/17 on a 17x9 with no shaving. 
 

Solely autocrossing, no track use. Let me know if there are other variables you need to factor in. I imagine for this use case A052 is best suited?

A052 or RE71RS are your full-tread shoulder season autocross droids for the above situation. 

Best of all, if you buy new now, they'll be at lower tread depth -- and thus, faster -- later in the summer when temps are warmer and you don't need the tread squirm for compound activation. 

Those are the only two worth a damn in the wet.  It's not even close.

This is all based on what I know today.  Still working with this set of P1 test tires.  More to come.

goingnowherefast said:

In reply to dallasreed :

Doesn't look like it's an option currently. Only 295/30/18.

All 13 Original Sizes are currently in stock and ready to ship at www.AmericasVitourTire.com

42 New Sizes are currently available for Pre Order 

Just a heads-up, user mmaspec is actually Sammy from America's Vitour Tire. 

Vitour will not be shipping any new inventory to AVT, except for the 315/30/18 for Spec Corvette.

Taking preorders for sizes that won't ever be delivered is highly questionable, and GRM admin intervention might be worth considering.

VitourP1.com has the new sizes in stock and shipping to customers.

In reply to JG Pasterjak :

Recommend you dial the camber back a bit also. The P1 seems to be happy / wear more even closer to 3-3.2 deg -2-2.2 degrees camber on the C8 platform where A052 needed about a half a degree more. 

Pretty much every set of P1 I have seen that hasn't wore even has wore the inside first.

Although there haven't been many running on something highly camber limited long term.