Originally Posted by katmeho

T13. Whats in bounds and whats out of bounds? To me, this will get you a flag in a race. I have heard from a number of racers that this extra pavement was unwelcome, and now I see coaches straight lining and telling students to do it. Would love feedback on what is legit, whats a cheater line and where is, the literal line not to cross??

Thunderhill T13 with pavement that some consider out of bounds...

Originally Posted by FelisMalicious

I think it is first measuring in bar and then round to one decimal digit. e.g. 2.07 is 2.1 bar. Than it makes a conversion to psi and round it without any decimal digits.

2.1 bar = 30.45 psi = 30 psi
2.2 bar = 31.90 psi = 32 psi
2.3 bar = 33.35 psi = 33 psi
2.4 bar = 34.80 psi = 35 psi

That is the reason for not seeing 31 or 34.

Originally Posted by orthojoe

Dude you gotta tell me how to put this box enclosure together. The instructions don't have any pictures! LOL!

Originally Posted by Mech33

C'mon it's like little kid legos! The hardest part is peeling off all the protective stickers on the acrylic...

Originally Posted by FelisMalicious

I think it is first measuring in bar and then round to one decimal digit. e.g. 2.07 is 2.1 bar. Than it makes a conversion to psi and round it without any decimal digits.

2.1 bar = 30.45 psi = 30 psi
2.2 bar = 31.90 psi = 32 psi
2.3 bar = 33.35 psi = 33 psi
2.4 bar = 34.80 psi = 35 psi

That is the reason for not seeing 31 or 34.

Originally Posted by FelisMalicious

I think it is first measuring in bar and then round to one decimal digit. e.g. 2.07 is 2.1 bar. Than it makes a conversion to psi and round it without any decimal digits.

2.1 bar = 30.45 psi = 30 psi
2.2 bar = 31.90 psi = 32 psi
2.3 bar = 33.35 psi = 33 psi
2.4 bar = 34.80 psi = 35 psi

That is the reason for not seeing 31 or 34.

Originally Posted by jphughan

I know I asked this differently already, but what is the likelihood that these early tire lifespan impressions are down to quirks of the sample we're dealing with? There aren't a ton of people reporting in yet, and I'm also wondering if driving styles based on the cars people have previous experience with is contributing to this. I found the post from the GT3 forum I mentioned earlier and quoted it below. It paints a completely different tire picture about a faster car, so once the necessary steps have been taken to get a proper alignment out of a GT4, I'm having trouble fathoming how it could still somehow be inherently prone to consuming tires more quickly. And yes of course not all tracks or drivers are equal, but elsewhere in the thread the quote below came from, Macca mentions that his data is based on input from lots of drivers from all over the world at a variety of skill levels, which makes me wonder further whether GT4 tire impressions might improve once we get more people reporting in. And yes of course there's some self-interest on my part in hoping that's the case since I was expecting 6-8 track days with some road mileage out of a set, and even though it's not as if the costs of a 4-day lifecycle would send me to the poor house, it would still rankle for the reality to be that far off what a fair amount of research had led me to expect.

Originally Posted by ShakeNBake

Ultimately this tire wear issue is because the car has strut suspension and is too soft. I am speculating, with data from Martin, that once you stiffen up the car a bit, the tire wear will be addressed. The clubsports are running 3-3.5, so that's probably the right area for a track-only car, but we need to stiffen up the car so it does not roll over. I think if you run a full stiff front bar it will improve things a bit, but at the expense of some weight xfer induced understeer.

Originally Posted by Yargk

Yup. I have an electronic thermometer that skips certain temperatures for the same reason. C v. F

Originally Posted by orthojoe

Funny you say that. Since I was happy with the way the car handled on middle settings front and rear, I decided to step it up to full stiff front and rear to see if it will help with the wear issue and still maintain the same dynamics that I liked. Headed back out to thill tomorrow to run the 5 mile course

Originally Posted by mrd_spy

be interesting to see both hard.

are you not tempted to just go rear hard to help rotation, I have ran like this from new but road only and it feels mega on the road like this.

I also see a lot of people have moved to rear hard also on track.

Will get to track it very soon.

Originally Posted by orthojoe

Great point, actually. I'm glad you brought it up because I forgot. I was running 33psi hot on all 4 corners. Maybe bumping it up another pound will help...?

Originally Posted by FelisMalicious

I think it is first measuring in bar and then round to one decimal digit. e.g. 2.07 is 2.1 bar. Than it makes a conversion to psi and round it without any decimal digits. 2.1 bar = 30.45 psi = 30 psi 2.2 bar = 31.90 psi = 32 psi 2.3 bar = 33.35 psi = 33 psi 2.4 bar = 34.80 psi = 35 psi That is the reason for not seeing 31 or 34.