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Old Aug 12, 2013 | 09:17 AM
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G-force readings

Was nosing around the dealer, they had a preowned coupe with very low miles and PDK/Sport chrono. I took a look to see the maximum g-forces that the meter had recorded, and was surprised to see a 1.3 on the right horizontal reading. That's pretty high ... would a sudden swerve or very sharp right turn give you a reading like that? Kind of difficult to spin these cars with the electronic nanny watching over you.
 
Old Aug 12, 2013 | 09:46 AM
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Originally Posted by vjd3
Was nosing around the dealer, they had a preowned coupe with very low miles and PDK/Sport chrono. I took a look to see the maximum g-forces that the meter had recorded, and was surprised to see a 1.3 on the right horizontal reading. That's pretty high ... would a sudden swerve or very sharp right turn give you a reading like that? Kind of difficult to spin these cars with the electronic nanny watching over you.
Yes, easy.
Will start to loose traction at around 1.1G on most surfaces but that does not mean that that is the maximum you can pull. The nannies will assist you if you help them with your right foot. Some get 1.6 (at least briefly).
Don't try this with a road that has a kerb or a ditch. Also have a set of spare tyres on order. You'll need them soon enough...
0.9 is my personal limit for spirited driving where conditions permit. The nannies don't even wake up with that.
Yes you can spin these cars (i.e. loose it). If you overcook it the nannies are just going to sit and watch. There is a fairly narrow band where the nannies can do their work (and do it well by all accounts). This is a proper 911 as a mate of mine found out the hard way (luckily without damage other than a few minor paint nicks from flying stones).

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Old Aug 12, 2013 | 09:57 AM
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Interesting. The other three were under 1.0 so it may me wonder if it was just a panic swerve to the right.
 
Old Aug 13, 2013 | 02:25 AM
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In my 4S i've had 1.5g in the corners, still perfect traction...
 
Old Aug 13, 2013 | 02:35 PM
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Anyone have a reading for G's pulled during a Launch?
 
Old Aug 13, 2013 | 05:57 PM
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What did you do to check the history?
 
Old Aug 13, 2013 | 06:09 PM
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On the multifunction wheel, if you press enter when the meter is in the gauge, you get a menu where you can read or reset the maximums ... if my memory is correct.
 
Old Aug 14, 2013 | 01:07 AM
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Originally Posted by Cutters68
Anyone have a reading for G's pulled during a Launch?
With my C2S lightly loaded (with passenger) and 1/4 tank close to sea level I max at just under 1.0 G at around 25 degrees C ambient.
Lowest reading with heavy passenger and near full tanks so far about 0.85G.

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Old Aug 14, 2013 | 07:41 PM
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Originally Posted by Rainier
With my C2S lightly loaded (with passenger) and 1/4 tank close to sea level I max at just under 1.0 G at around 25 degrees C ambient.
Lowest reading with heavy passenger and near full tanks so far about 0.85G.

Rainier

Thanks!
 
Old Aug 14, 2013 | 10:21 PM
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Originally Posted by Mr.Boon
In my 4S i've had 1.5g in the corners, still perfect traction...
Ok...I've done 1.38Gs so far...it's so sure footed I'm sure it call pull many more!
 
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Old Aug 15, 2013 | 03:26 AM
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The way mine is setup on a very smooth tarmac surface (not the very best traction possible but not bad either) and sustained cornering (i.e. going in circles) it starts to understeer at a tad over 1G - still completely controllable but the fronts are slipping so technically that is loss of traction. The C4x should be able to claw a tiny bit better here.
You can go quite a bit harder but you are sliding around the turn - traction is lost and you are maintaining using friction and your tyres are wearing real fast in the process...

Oh yes, if you want to try this (and have a suitable spot where you will not be annoying anybody) switch the traction control off as it will retard the throttle making it difficult for you to push through the understeer into oversteer which is what you want.
You could probably deflate the fronts a bit and have the rears hard so it goes into oversteer right away but I have not tried this on the Porsche (it works on my MX5).

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Old Aug 15, 2013 | 04:42 AM
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Just as a slight addition to the above post something I would like to mention (something that bugs me).
The above test (going around in circles) is a wonderful way of learning how the steering feedback with the electromechanical setup works. I find it absolutely sublime. You know exactly what is happening to your traction - if you don't read it loud and clear you must have hands (and arms !!!)made from wood. Really.

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Old Dec 16, 2013 | 12:42 PM
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Whoops, 1.57g!

Had a "moment" the other day I'd describe as "critical" but not "dangerous": bright frontal sunlight on straight leading up to a fully shaded right turn. I was way too fast, hit an unexpected CA-style bump on corner entry, caught some air and then witnessed the nannies save my a** upon making contact with the road again. The result is attached.

Thanks, nannies!
 
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Old Dec 16, 2013 | 09:29 PM
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Here's mine
 
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Old Dec 16, 2013 | 11:04 PM
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3.4L Carrera on 19" rubber:

 
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