Why so few sport chronos in manual trans cars?
06-02-2018, 03:48 PM
#61
Rennlist Member
Very curious about the info above re: boost in a 911.2 Carrera with and without SC. My car, which does not have SC, seems to live in the 10-11psi range and I occasionally see spikes to 13psi in some gears/situations—but staring at the gauge on full throttle isn't exactly easy or smart in these cars. When we tested the T recently, one road tester was pretty sure he saw 13-14psi at one point, and all three of us felt the T felt quicker. Both cars were 7MT.
I have a question in with Porsche re: boost across the range in Sport Plus (and Sport) as well as peak power outputs. One thing discussed is that Porsche engineers don't view the gauge as perfectly accurate—which is nothing new when it comes to boost gauges in general, in all cars. I can also see where, if the system can manage boost differently in different gears, it can offer the peak power numbers quoted while increasing performance under the curve in Sport Plus. Will be curious to hear back, but would appreciate a point to if anyone knows a path to the most relevant threads here on RL. It's easy to discount such threads, much as some did with GT4 cooling in Sport mode, but the latter proved true and an engineer at Porsche eventually confirmed that the press/marketing materials were incorrect when it came to cooling in Sport mode.
I have a question in with Porsche re: boost across the range in Sport Plus (and Sport) as well as peak power outputs. One thing discussed is that Porsche engineers don't view the gauge as perfectly accurate—which is nothing new when it comes to boost gauges in general, in all cars. I can also see where, if the system can manage boost differently in different gears, it can offer the peak power numbers quoted while increasing performance under the curve in Sport Plus. Will be curious to hear back, but would appreciate a point to if anyone knows a path to the most relevant threads here on RL. It's easy to discount such threads, much as some did with GT4 cooling in Sport mode, but the latter proved true and an engineer at Porsche eventually confirmed that the press/marketing materials were incorrect when it came to cooling in Sport mode.
06-02-2018, 03:52 PM
#62
It may be worth noting than manual cars from 2012.5, 2013 even with sport chrono did not have rev matching. For me this is the best of both worlds. I think the other things offered with the package significantly improve handling in the twisties. I drove with and without SC prior to purchase. It is worth it and I agree MT cars without it are poorly spaced (especially at the S level). Rev matching might make me faster on a track but I don't track my car.
QUOTE=911boy;15045948]+1. Why bother with MT if computer is going to take over IMO. I don't imagine I'd be able to detect/notice dynamic engine mounts.
QUOTE=911boy;15045948]+1. Why bother with MT if computer is going to take over IMO. I don't imagine I'd be able to detect/notice dynamic engine mounts.
this is untrue for the 2013 991s. I have one with Sport Chrono and it auto blips in sport plus mode. Not in the other modes.
06-03-2018, 10:01 PM
#63
Strange
PCNA told me this directly when I called them and they had to check. Perhaps a late year 13' build ?
this is untrue for the 2013 991s. I have one with Sport Chrono and it auto blips in sport plus mode. Not in the other modes.[/QUOTE]
Range
this is untrue for the 2013 991s. I have one with Sport Chrono and it auto blips in sport plus mode. Not in the other modes.
Range
Last edited by Bud Taylor; 06-03-2018 at 10:03 PM. Reason: spelling
06-04-2018, 05:31 PM
#64
Rennlist Member
Wow. There is a lot more going on than just that. Let me count the ways and I am sure I am missing some.
1. Rev matching
2. Improved throttle mapping
3. Dynamic engine mounts
4. relaxes the point at which PSM engages
5. G-force meter
6. Clock
7. Laptime stopwatch
8. Sport screen on PCM with lap comparisons
9. ability to download car/engine data to excel for analysis or pairing with video
10. Upshift indicator
And probably about 10 others that I forgot about.
1. Rev matching
2. Improved throttle mapping
3. Dynamic engine mounts
4. relaxes the point at which PSM engages
5. G-force meter
6. Clock
7. Laptime stopwatch
8. Sport screen on PCM with lap comparisons
9. ability to download car/engine data to excel for analysis or pairing with video
10. Upshift indicator
And probably about 10 others that I forgot about.
06-04-2018, 10:09 PM
#65
Three Wheelin'
this is untrue for the 2013 991s. I have one with Sport Chrono and it auto blips in sport plus mode. Not in the other modes.
I can find the info somewhere. I researched this back when I was shopping as I wanted to make sure my 2013 didn't have it and I know there was a specific manufacturing date part way thru the model year where it was added in