Couple of Runs with the G-Meter * Updated *
09-18-2006, 01:38 PM
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My Ride: 2008 Porsche 911 Carrera S Convertible. Midnight Blue, 6 Speed.Retired - 2007 997 Carrera S, Midnight Blue, Grey leather, premium audioRetired - 2007 550i, Monaco Blue over Beige, Navigation, Logic 7, Cold Weather Pack, Comfort Access, Sport Package
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Originally Posted by SergeyM' post='335867' date='Sep 18 2006, 02:26 PM
Unfortunately 500 gained 110 libs compared to 545. The correct weight is 3,925. That may partially explain why 550 is/feels slower than 545.
09-18-2006, 02:20 PM
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We need more meter guys in 550i's, and all doing passes need to make weather and altitude adjustments for comparability with the rest of us that are. 
09-18-2006, 02:46 PM
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My Ride: 2007 E63 AMG | Obsidian Black | Schwarzes Nappa | Black BirdEye Maple | Premium II Package | Electronic Trunk Closer | Parktronic
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Originally Posted by Znod' post='335890' date='Sep 18 2006, 03:20 PM
We need more meter guys in 550i's, and all doing passes need to make weather and altitude adjustments for comparability with the rest of us that are.
I'm hoping that there will be opportunities to do some launches this coming Saturday at the Socal Meet. There should be quite a few 550s there.
09-18-2006, 04:22 PM
#274
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Originally Posted by grogan545' post='335815' date='Sep 18 2006, 11:21 AM
Hi all.Made 1/4 run this morning with my GT2 timer.Results as follows:
good stuff
0-60............5.17
1/4 time.......13.56
1/4 speed.....104.20
weather conditions
temp.......57F
dew point..57F
bar...........29.94
altitude.....400'
It appears that as the weather gets cooler here my times are getting better.I don't know what the corrected figures would be,maybe Znod can crunch.
good stuff
0-60............5.17
1/4 time.......13.56
1/4 speed.....104.20
weather conditions
temp.......57F
dew point..57F
bar...........29.94
altitude.....400'
It appears that as the weather gets cooler here my times are getting better.I don't know what the corrected figures would be,maybe Znod can crunch.
Calculate Density Altitude:
Your results:
Air Temp 57 (?F)
Altimeter Setting 29.94 (in)
Dew Point 57 (?F)
Altitude 400 (Feet)
Density Altitude 553.1 (feet)
Correct 1/4 mi. Timeslip to Sea Level:
Your results:
Density Altitude 553.1 (feet)
Uncorrected ET 13.56 (sec)
Uncorrected MPH 104.2 (mph)
Corrected ET 13.481
Corrected MPH 104.82
Correct 1/4 mi. Timeslip to New Density Altitude:
Your results:
E.T. 13.481 (sec)
Trap Speed 104.82 (mph)
Measured DA 553.1 (feet)
Corrected to 500(feet) DA
Corrected ET 13.474 (sec)
Corrected Trap Speed 104.879 (mph)
Corrected 0 -60 5.064 (sec)--My excellent estimate
Good one g-man. The weather helped you a tad. I looked back; it is one of your 5 best on an adjusted basis. So, give me a few days and I will substitute it in and change your average here. I still plan to get a few more in before the good old hot weather is gone.
09-18-2006, 05:51 PM
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I am almost back to testing....the weather is finally starting to cool down...first morning below 70F in I don't know how long....also I have gotten PS2's on the shoes, so that will be interesting....
...long live the 6 speed, even if I am not close to these Step times
Cheers,
...long live the 6 speed, even if I am not close to these Step times
Cheers,
09-18-2006, 06:51 PM
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Originally Posted by swajames' post='335872' date='Sep 18 2006, 05:38 PM
According to BMW the 550 is indeed heavier, but the weight gain over the 545 was just 66 lbs (07 550 vs 05 545, using weight per the 07 and 05 brochures). I'd expect that 66lbs should be more than offset by 35 more HP and the additional 30lb/ft or so of torque?
09-18-2006, 06:54 PM
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Originally Posted by Znod' post='335863' date='Sep 18 2006, 05:13 PM
Get a meter DJ. I'd be more concerned about the lil ole Lexus guy from Pasadena.
09-18-2006, 08:31 PM
#278
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Originally Posted by Don Juan' post='335978' date='Sep 18 2006, 07:54 PM
Damn, ok ok.. ZENOD, what timers do you recommend? what are the prices? maybe with my new M5 shift knob from MY530I I can be under 5 secs 0 to 60moh
I'm betting you can. Less gas. No spare. cold weather... under 5 for sure. I bet my IS can get under 5 too... I had too much gas in the car this time and still have the spare and all carpet in the car including the tunk carpet matt... thats heavy.
09-19-2006, 05:16 AM
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My preference is the Tesla Pro RR (with the download cable and software). It is either about $300 or about $400--can't remember which. You can get the non-download model for about $100 less, but you won't get nearly as much info. Still, if you are just interested in basic data, then it is plenty good. Happy testung.
09-19-2006, 05:52 AM
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My Ride: 2008 Porsche 911 Carrera S Convertible. Midnight Blue, 6 Speed.Retired - 2007 997 Carrera S, Midnight Blue, Grey leather, premium audioRetired - 2007 550i, Monaco Blue over Beige, Navigation, Logic 7, Cold Weather Pack, Comfort Access, Sport Package
Model Year: 2008
Originally Posted by SergeyM' post='335976' date='Sep 18 2006, 07:51 PM
How did you get 66 lbs difference? I've just checked my 2005 book (545 is 3,814 lbs) and 2007 (550 is 3,924) for cars with auto tranny. The difference is 110 lbs or 50 kilos. Are you taking into account your somewhat lighter non-RFT tires? Add softer suspension and reprogrammed engine/tranny and 550 can very well be slower than 545.
The only test for the 550 so far has been a dead 5.0, the lowest tests for the 545 in any of the mainstream auto press was 5.2 to 5.3. No car mag got 545 results close to the times reported here with g-meters by 545 drivers. By the same logic, stick a g-meter in 550 and with similar amounts of practice it's reasonable to assume that in time you will beat the magazine numbers as the 545 owners seem to have done.