Question about PSS tires on GT350

[chedder]

Yes, parameters can change from car to car. Ford may have had an update or other grimlens. Some of our track rats have had the problem in GT or 350's.

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[drudge]

Can he change tire size via forscan/obd?

 

[chedder]

Yes. It will ask tire sizes and follow prompt.

 

[drudge]

Yes. It will ask tire sizes and follow prompt.

Do you know where exactly?
I found this Thread: https://forscan.org/forum/viewtopic.php?t=2650

Is this the Right way?

 

[RJay]

How much?

If you were standing in my driveway I would say $1000. The problem with these tires would be getting them to Seattle and still having any money in the deal. Unless you're planning a road trip to Phoenix?

 

[TX State]

Any have a link to the article that talks about tread with for our cars?

 

[chedder]

Any have a link to the article that talks about tread with for our cars?

Why tread width question? Too skinny good mileage, more width more cornering force availiable. What are you looking for?

 

[TX State]

I remember seeing a thread and can’t find it but someone posted an article and the guy was talking about how wider doesn’t always mean better. I was just trying to find it so I can read it again.

 

[datadatum]

I recall reading an excellent article about the forces applied to a tire that result in "grip". It described the physics of the contact patch, and how the load on the tire can change the contact patch. Ultimate conclusion (backed with data) is that past a certain point, wider reduces performance. Unfortunately, I can't find it. :(

But I did find these, which are related and interesting...
https://www.roadandtrack.com/car-culture/buying-maintenance/a21776425/wider-tires-more-grip/
https://blog.tirerack.com/blog/letters-from-luke/wider-is-better-some-of-the-time

 

[RJay]

I remember seeing a thread and can’t find it but someone posted an article and the guy was talking about how wider doesn’t always mean better. I was just trying to find it so I can read it again.

I think that was Billy Johnson providing a PSA to the group - can't quite remember what thread it was in.

As I recall, he was discouraging the move to wider-than-stock tires on our vehicles (you constantly see folks going 305/325 on the base and even wider on the R's).

Some very highly paid individuals specced out the wheels and recommended certain tire sizes - I'll stick with OEM.

 

[MNGT350]

https://motoiq.com/how-to-properly-select-and-size-tires-for-performance/

this is the article I think you're referencing. . It's why I downsized to 295/35/19 rear and 285/35/19 front on my extreme contact sports (after checking tread width measurements on tire rack)

 

[TX State]

Is there also one about the ps4s speciafically? I seem to remember an article about that and I thought it was written by someone from ford performance.

 

[nordique14]

I have the same stack. LOL

If you were not literally on the other side of the country, I would take them off your hands. Too bad shipping cost would likely make it not worthwhile.

 

[oldbmwfan]

The computer is programmed to have a difference of rotation differential. Not a lot but some. By running square the computer thinks the car is out of control and tries to fix it. A programmer will alleviate that problem. Lund or any of those that has tire size parameters included a will cure that. Or turn traction control off until the reprogram is complete.

I run the PSS in 305/30 all around on my GT350R on stock-size wheels and there are no issues at all.

 

[chedder]

I think that was Billy Johnson providing a PSA to the group - can't quite remember what thread it was in.

As I recall, he was discouraging the move to wider-than-stock tires on our vehicles (you constantly see folks going 305/325 on the base and even wider on the R's).

Some very highly paid individuals specced out the wheels and recommended certain tire sizes - I'll stick with OEM.

305/325 combo running the track

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