On track experiences and video's 991 GT3 only.
05-18-2015, 10:01 AM
#706
Rennlist Member
I was in manual mode. I ran with ESC off and didn't experience any gearbox induced downshifts that I didn't control. I did run a few laps in automatic - it was actually pretty good about up/down shifting in the same areas I would have. I just preferred to be a bit more involved with the car. I was threshold braking in a few areas (i.e. after the long straight) but rarely got into ABS. I can't remember getting the traction control to kick in. I also ran the car on the skid pad and must say that it was very difficult to get the rear end loose, even when trying to induce oversteer (flicks, power-on) - I think the lower speeds of the skid pad, combined with the rear wheel drive steering seemed to counteract oversteer. I did get the back end to move in some faster sections, albeit very controllable.
I also found that running in the sport shock setting, the car was far more twitchy with the setup I was running (tended to oversteer more - especially in the two areas where the car "catches air", and the car seemed to also understeer and oversteer more frequently out of moderate speed corners (whereas in the stock shock setting, the car was much more settled)). The stock setting was certainly faster and more stable on this particular track set-up. I found the same thing to be true in my gen 2 RS. If I were to change anything on the car, I would change out shocks for 2-ways. I was running tire pressures around 33-35 hot (measured with tire pressure gauge and not the TPMS).
FWIW - I bought the sunglasses cam from Amazon - Amazon.com : Inventio-HD Pro 1080P Video Sunglasses (1080p 30fps & 720p 60fps) : Sports And Action Video Cameras : Camera & Photo
A few comments about them - bulky, had to wear a open face helmet, and I usually take out the lenses when using. I purchased them to have a better idea where my eyes were and if my head was turning while driving. For that purpose, they met my needs.
I also found that running in the sport shock setting, the car was far more twitchy with the setup I was running (tended to oversteer more - especially in the two areas where the car "catches air", and the car seemed to also understeer and oversteer more frequently out of moderate speed corners (whereas in the stock shock setting, the car was much more settled)). The stock setting was certainly faster and more stable on this particular track set-up. I found the same thing to be true in my gen 2 RS. If I were to change anything on the car, I would change out shocks for 2-ways. I was running tire pressures around 33-35 hot (measured with tire pressure gauge and not the TPMS).
FWIW - I bought the sunglasses cam from Amazon - Amazon.com : Inventio-HD Pro 1080P Video Sunglasses (1080p 30fps & 720p 60fps) : Sports And Action Video Cameras : Camera & Photo
A few comments about them - bulky, had to wear a open face helmet, and I usually take out the lenses when using. I purchased them to have a better idea where my eyes were and if my head was turning while driving. For that purpose, they met my needs.
appreciate your track insights.
Did you have stock align settings?
Has anyone experimented with lowering their 1GT3?
appreciate insights,
P
05-19-2015, 03:56 PM
#710
05-20-2015, 03:06 AM
#711
Laguna Seca last Friday recorded using the Porsche Track Precision app:
Only managed a 1:43 so far. Tons of opportunities for improvement! Still getting comfortable with the feel of the car... note the lift in front of the sound booth before I had my sound fix fully debugged.
Thought some folks would appreciate that the Porsche Track Precision app actually works sometime (with video manually exported over Apple AirPlay).
LOL at the car at the end of the video for those that watch it all the way through!
Only managed a 1:43 so far. Tons of opportunities for improvement! Still getting comfortable with the feel of the car... note the lift in front of the sound booth before I had my sound fix fully debugged.
Thought some folks would appreciate that the Porsche Track Precision app actually works sometime (with video manually exported over Apple AirPlay).
LOL at the car at the end of the video for those that watch it all the way through!
05-20-2015, 10:02 AM
#712
Rennlist Member
Thread Starter
Any hopes of adding second Camera? I suppose you could place the camera behind you so you can see actual drivers input (and check with graphics) and still see the track out the windshield...
Do these symbols show if PSC or TC come one, if the car over or under steers?
Looks cool
Do these symbols show if PSC or TC come one, if the car over or under steers?
Looks cool
05-20-2015, 05:49 PM
#713
Any hopes of adding second Camera? I suppose you could place the camera behind you so you can see actual drivers input (and check with graphics) and still see the track out the windshield...
Do these symbols show if PSC or TC come one, if the car over or under steers?
Looks cool
Do these symbols show if PSC or TC come one, if the car over or under steers?
Looks cool
05-20-2015, 06:34 PM
#715
Nordschleife Master
Laguna Seca last Friday recorded using the Porsche Track Precision app:
Laguna Seca in 2015 GT3 recording using Porsche Track Precision app
Only managed a 1:43 so far. Tons of opportunities for improvement! Still getting comfortable with the feel of the car... note the lift in front of the sound booth before I had my sound fix fully debugged.
Thought some folks would appreciate that the Porsche Track Precision app actually works sometime (with video manually exported over Apple AirPlay).
LOL at the car at the end of the video for those that watch it all the way through!
Laguna Seca in 2015 GT3 recording using Porsche Track Precision app
Only managed a 1:43 so far. Tons of opportunities for improvement! Still getting comfortable with the feel of the car... note the lift in front of the sound booth before I had my sound fix fully debugged.
Thought some folks would appreciate that the Porsche Track Precision app actually works sometime (with video manually exported over Apple AirPlay).
LOL at the car at the end of the video for those that watch it all the way through!
05-21-2015, 01:24 AM
#718
Instructor
Join Date: Mar 2013
Location: Toronto, Canada
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Earlier this month, I went to a track/lapping day on the big track at Canadian Tire Motorsports Park (formerly known as Mosport) with the 6th Gear group. It was a beautiful sunny and warm day and first track day for me this year. I couldn't beat my previous best laptime of 1:34.7 from last fall, and I wonder whether it's because I let my tires reach 38-41 psi (hot) as the day wore on.
Open lapping the whole day......passing only allowed on the straights and only with the driver in front pointing you by.
Here is a video of me chasing down many cars over a 10 minute period:
And here is a video of me following a 991 Turbo, which was following a another 991 GT3:
Open lapping the whole day......passing only allowed on the straights and only with the driver in front pointing you by.
Here is a video of me chasing down many cars over a 10 minute period:
And here is a video of me following a 991 Turbo, which was following a another 991 GT3:
05-21-2015, 01:30 AM
#719
Rennlist Member
Ive had a similar experience here in NZ. I put it down to tyres. I have less than 50% left on them after 1000km track and 10500km fast road and touring. They are almost 18 months old. Ive just had new ones fitted for a track weekend coming up and hope performance is restored. I was around 2s off on a slightly shorter track. Im thinking the grip has fallen off possibly the tyres are heat cycling. They still showed 3.78mm inside and 4.8mm outside tread depths when I changed them over. -2.0 F+R camber. I think perhaps driving them for 15 months on road across a variety of temp ranges (0C to 30C) has taken its toll...
05-21-2015, 01:35 AM
#720