[silvermanor]

Originally Posted by vrships

How much slower were you in pz4 vs ps4s?

Hard to compare them in a scientific way. Temperatures and track conditions were different and I still constantly struggle with pressures on this car. But I generally felt a bit more confident with the PS4S which made me push the car more which maybe lead to them wearing faster. I also ran a slightly lower pressure on the PS4S than I ever did the PZ4.

PS4S for me were about 2-3 sec faster on a 55 second lap which is massive. The PZ4 wore completely even though even without camber plates and lasted me 4 days. Not sure if it was the higher pressures and thus the lack of confidence.

The PS4S on the other hand are heavily beveled on the middle threads and were rolling over with a ton of shoulder wear. Basically done in 2 days but even though the sidewalls are horrible the tire felt really good overall.

Again not sure if it was the lower pressures or maybe I am just getting more comfortable with the car and lapping but I can't continue to run them like that as they just melt. I would honestly just rather be 2 sec slower and run PZ4s with their stiffer sidewall and normal wear.

Long term play is to just get camber plates and RS4s.

[vrships]

Originally Posted by silvermanor

Hard to compare them in a scientific way. Temperatures and track conditions were different and I still constantly struggle with pressures on this car. But I generally felt a bit more confident with the PS4S which made me push the car more which maybe lead to them wearing faster. I also ran a slightly lower pressure on the PS4S than I ever did the PZ4.

PS4S for me were about 2-3 sec faster on a 55 second lap which is massive. The PZ4 wore completely even though even without camber plates and lasted me 4 days. Not sure if it was the higher pressures and thus the lack of confidence.

The PS4S on the other hand are heavily beveled on the middle threads and were rolling over with a ton of shoulder wear. Basically done in 2 days but even though the sidewalls are horrible the tire felt really good overall.

Again not sure if it was the lower pressures or maybe I am just getting more comfortable with the car and lapping but I can't continue to run them like that as they just melt. I would honestly just rather be 2 sec slower and run PZ4s with their stiffer sidewall and normal wear.

Long term play is to just get camber plates and RS4s.

2s sounds huge fore tires with the same tread wear. I beated up my PZ4 pretty heavily in a 2 day event and now looking at them, the shoulder indicator (small radial cuts ~ 1" long when new) are 1/3 or 1/4 left on the front. But some professional racers told me they are still in good conditions .

Good to hear that PZ4 does have some advantages over PS4S. The camber plates might make it more durable for 6 - 8 total days I hope.

[Boomer 2019]

If you are going to track your car on a semi regular to regular basis, the addition of camber plates or major front suspension surgery will make a major difference in the wear rate of your tires. This is true regardless of the brand or model of tire used. These cars desperately need more camber. The stock setting for the fronts and rears is about -2.0. This is fine for the rears, but the fronts need much more or they will have a very short lifespan (typically 2-3 days). The addition of camber can easily double this. Keep in mind that different tires will wear at different rates.

I am a lazy SOB so I run the same tires (MPS4s) and brake pads all the time. When the car was new with the stock camber I would use up the front tires in about 3 days with cording showing on the outside edges. After adding camber plates, and bringing the fronts up to -3.6 the cording is gone, and I am getting 7-8 days of perfect wear. A must have as far as I'm concerned.

[silvermanor]

Originally Posted by Boomer 2019

If you are going to track your car on a semi regular to regular basis, the addition of camber plates or major front suspension surgery will make a major difference in the wear rate of your tires. This is true regardless of the brand or model of tire used. These cars desperately need more camber. The stock setting for the fronts and rears is about -2.0. This is fine for the rears, but the fronts need much more or they will have a very short lifespan (typically 2-3 days). The addition of camber can easily double this. Keep in mind that different tires will wear at different rates.

I am a lazy SOB so I run the same tires (MPS4s) and brake pads all the time. When the car was new with the stock camber I would use up the front tires in about 3 days with cording showing on the outside edges. After adding camber plates, and bringing the fronts up to -3.6 the cording is gone, and I am getting 7-8 days of perfect wear. A must have as far as I'm concerned.

Definitely. My stock front camber is -1.4. No bueno.

[sdsd]

Did someone install any 4pt harness with sport seat?

[rafaeldelrey]

Just a heads up. I installed the Lvl2 handling kit from PhD Racing, made with SPL parts and it enabled us do to some pretty good tweaks to the camber, toe, and caster. Those made me go from 2:23 to 2:20 on Sebring, which is GT3 territory. The car, after the proper tire pressure settings felt amazing. I haven't gone with the coilovers, so the kit was not expensive.

I decided to give this kit a try after watching the video

and talking to Jackie at PhD Racing, who provided me with a very good path into improving car performance stage by stage.