F-Type ( X152 ) 2014 - Onwards
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Anyone running 305/35-20 on rear

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  #41  
Old 11-03-2015, 08:38 PM
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Originally Posted by lhoboy
Quite simple. The design of any system is a complicated series of compromises to create a product that is appealing to the largest number of customers within the target audience. For example, look at ground clearance. At 5.25 inches, it is not optimal for center of gravity and handling considerations, or even aesthetics. Some of us don't have to traverse mountainous driveways and can afford to lower the vehicle. Others that will be traveling in snow on a regular basis will need more ground clearance and Jag has addressed that on the AWD. The reduced handling from a taller stance will be more than offset by the AWD.
Regarding aesthetic issues, beauty is in the eyes of the beholder. Chrome, CF, wheel offset, tire width, are all subjective and worthy of modification if it makes the owner feel better about his/her vehicle.

I do agree, though, going wider on the back tires without going wider in front could negatively impact the cornering characteristics and balance.

Your comments must have merit. I live in CA and am not an expert on sports cars and how they sit and handle. I'm just happy to be able to own and drive such a car.
 
  #42  
Old 11-04-2015, 07:37 AM
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Originally Posted by lhoboy
Are these the charts from your car, or from their test mule?
Their chart. If I ever dyno mine, I'll post it. I won't have any stock F-Type R base though, so another R driver will have to post their dyno here too to get a proper comparison to each other and to the Eurocharged graph already posted.
 
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  #43  
Old 11-04-2015, 04:41 PM
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Originally Posted by Foosh
I don't see it on Tire Rack in any 20" size, but perhaps it will be eventually.
Oops. I meant SO-4s.

http://www.tirerack.com/tires/TireSe...SortCode=60149
 
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  #44  
Old 11-04-2015, 05:45 PM
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Originally Posted by WhiteTardis
When I posted yesterday, I searched the Tire Rack site for all 20" OEM-sized tires for the 2015 F-Type R, and those weren't there. It appears that they were just added today.

At any rate, that's a bargain price, considerably cheaper than either the Michelins or Pirellis. They're highly ranked too!
 
  #45  
Old 11-04-2015, 06:19 PM
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Originally Posted by Foosh
When I posted yesterday, I searched the Tire Rack site for all 20" OEM-sized tires for the 2015 F-Type R, and those weren't there. It appears that they were just added today.

At any rate, that's a bargain price, considerably cheaper than either the Michelins or Pirellis. They're highly ranked too!
Does anyone have experience with these tires? How do they handle, wear, grip? etc. That price is terrific.
 
  #46  
Old 11-04-2015, 06:29 PM
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Originally Posted by Mbourne
Does anyone have experience with these tires? How do they handle, wear, grip? etc. That price is terrific.
If you click on the Tire Rack link White Tardis posted tonight, for each tire, there's a button for Tire Rack test ratings with a number of categories rated for each tire. Overall, the PSS is #1 out of 29, the Potenza is #3, and the PZero is #22.

The worst categories for the PZero are ride quality and noise, but it's also somewhat lower on grip, wear, and all the other handling categories.
 

Last edited by Foosh; 11-04-2015 at 06:33 PM.
  #47  
Old 11-04-2015, 06:32 PM
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Originally Posted by Mbourne
Does anyone have experience with these tires? How do they handle, wear, grip? etc. That price is terrific.
I've driven on the RE050 and S-03 which was original equipment on the s2000 before being replaced by the S-04. Those were GREAT tires. But then again I've always had good impressions with any of Bridgestones Pole Position tires.

I found this article when Car And Driver did their "Monsters of Grip" article:

Monsters of Grip: Nine Summer-Performance Tires Tested Comparison Tests - Page 9 - Car and Driver

The Pirelli PZero ranked dead last.
 

Last edited by WhiteTardis; 11-04-2015 at 06:40 PM.
  #48  
Old 11-04-2015, 06:38 PM
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I think for what they are, the Bridgestones are a great value. I think I'd rather save a few hundred bucks and be late to work by .001 seconds.
 

Last edited by WhiteTardis; 11-04-2015 at 06:43 PM.
  #49  
Old 11-05-2015, 10:37 AM
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I'm running Michelin PSS 305 35 20... so far so good!
 
  #50  
Old 11-22-2015, 05:45 PM
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I went ahead with PSS, 255/35/20 front and 305/30/20 on rear. The ride is a lot smother and quieter. I'm also loving the grip of these. A HUGE upgrade over stock tires for those who are considering it.
 
Attached Thumbnails Anyone running 305/35-20 on rear-aimg_4740.jpg   Anyone running 305/35-20 on rear-aimg_4738.jpg   Anyone running 305/35-20 on rear-aimg_4737.jpg   Anyone running 305/35-20 on rear-aimg_4726.jpg   Anyone running 305/35-20 on rear-aimg_4725.jpg  


Last edited by Lizard; 11-22-2015 at 05:55 PM.
  #51  
Old 11-22-2015, 05:51 PM
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I'm not. My dealer told me that Jaguar sports cars have diff issues from time to time, and I didn't want to give them an excuse to say we won't honor the warranty unless you replicate the issue on stock tires.

I did find a significant grip improvement switching from Pirelli to Michelin PSS in the same size.
 
  #52  
Old 11-22-2015, 06:33 PM
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Originally Posted by StealthPilot
I'm not. My dealer told me that Jaguar sports cars have diff issues from time to time, and I didn't want to give them an excuse to say we won't honor the warranty unless you replicate the issue on stock tires.

I did find a significant grip improvement switching from Pirelli to Michelin PSS in the same size.
Agreed, 10mm of extra rubber doesn't contribute much in terms of extra grip and isn't worth the chance, albeit remote.
 
  #53  
Old 11-23-2015, 04:02 AM
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i have the oem size mpss ready to swap when my car is delivered this week

imo 305 in rear is too much rubber, and makes the sidewall look unevenly bulged out compared to fronts
 
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