PSM Saves the day!

PSM Saves the day!

Author
Discussion

LeeME3

1,502 posts

227 months

Thursday 22nd December 2005
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nel said:

Do you think that there may be a negative element to PSM? In the same way that equipping cars with ABS was shown to make drivers drive that bit closer to the limit because they felt that ABS could get them out of the shite - hence they were shown statistically (in Germany) to have less accidents, but much bigger ones once the limitations of the laws of physics had been surpassed. So with PSM, being aware that you have a silicon fairy godmother ready to intervene if you overcook it, will it tend to make you push the limits that bit more?


I imagine you are right - but it does depend upon the driver. At the moment I don't drive differently knowing that PSM is there to help me out, but it does engender a certain comfort blanket that does possibly encourage you to push the envelope a little further, not a problem for me as the car's abilities far outweigh mine with or without PSM! Perhaps I'll get 'braver' in the future... I guess in a way it's like airbags - people used to boast about how many airbags their car had (generally drivers of a certain Scandinavian brand beginning with 'V'!!!! No offence intended...), but no airbag ever prevented a crash, just made the consequences less painful! There are certain safety features one would hope never to need!

m12_nathan

5,138 posts

260 months

Thursday 22nd December 2005
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derestrictor said:
Old EVO VII of mine had all sorts of trickery, AYD, ACD & ICBM.

It was most impressive until a cold November's night.

After which calmitous event I renamed the electronic ensemble LMA {Lamppost Magnet Accuation.}




Evos don't have a stability control system though. Nothing like PSM or DSC etc. What is ICBM?

BliarOut

72,857 posts

240 months

Thursday 22nd December 2005
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Inter Continental Ballistic Missile

fergy

279 posts

224 months

Thursday 22nd December 2005
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Personally when I hopefully get my next car (aiming for 996/997 in about 2 years time)I would not buy a car without PSM. I'm very glad that it is now standard on the 997 as opens me up to choosing any car, where as it will restrict my choices of 996.

I managed to spin a previous car exiting a roundabout in the wet, since that day I decided I'd never buy a car without the electronics to catch me if I overdo it a wee bit. The electronics are excellent on wet slippy roads in Scotland in winter... and certainly not fool proof but enough to help out occasionally.

granville

18,764 posts

262 months

Thursday 22nd December 2005
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m12_nathan said:

Evos don't have a stability control system though...


Well I know that now!

superlightr

12,867 posts

264 months

Thursday 22nd December 2005
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derestrictor said:
m12_nathan said:

Evos don't have a stability control system though...


Well I know that now!



pikey

7,700 posts

285 months

Thursday 22nd December 2005
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fergy said:

Brillaint feature that should be standard on all cars, as long as they put in a button to switch it off.


Did you know that you actually can't (on the 997 or the Cayman)...

You can press the button and it appears to be off, but actually all thats happened is the limit's moved to a much later point of safety.

Jcosh

1,172 posts

233 months

Thursday 22nd December 2005
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I am also converted to how good this system is for high-powered rear wheel drive sports cars for everyday use. Today I test drove two 997S's, one with -20mm sports suspension and one with the standard PSAM suspension. Whilst out in the -20mm car I had an interesting moment that certainly woke up the salesman sitting next me. I gave it a healthy stab of the throttle whilst appexing a very damp (and muddy) right hand 90-degree corner. The back end of the car stepped out progressively and I whilst I was applying an arm full of opposite lock the PSM light flickered. The next thing I knew we were happily flying down the road without incident.

I would like to think that my corrective steering inputs helped the situation, but PSM definitely had a part in keeping it all together. The important thing is that it all felt very controlled and unobtrusive. If there were no light to tell you that the PSM is getting involved I would have been convinced that it was my work alone that sorted it all out.

A very clever system that will enable most mortals to go about their motoring business with a helping hand.

As an aside this all happened on a road that I know very well and I was pushing on despite the crash test dummy sitting next to me. The road was damp and greasy. I am convinced that I would not have been able to travel as quickly in my recently sold GT3RS.

Cheers Jonathan

clubsport

7,260 posts

259 months

Thursday 22nd December 2005
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Jonathan, interested to hear your view comparing the two different 997 set ups.
Have you found your next car?

Jcosh

1,172 posts

233 months

Thursday 22nd December 2005
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clubsport said:
Jonathan, interested to hear your view comparing the two different 997 set ups.
Have you found your next car?


Hi Paul

Today was my first effort in testing a few cars as I have been a bit busy with a new new born baby in the family. I am really very impressed with the 997S as a complete package, particuarly with the -20mm suspension.

At the risk of hijacking this thread with my new car thoughts I will start a new thread as I need to seek some advice from those who know better.

Cheers Jonathan

richardb.jones

326 posts

226 months

Thursday 22nd December 2005
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With the PSM button off, the PSM will only activate when you hit the brake. ie 'you probably really do need my help here - we are sliding big time and you're trying to brake - here, let me help ...'

With PSM off and you not touching the brake, you can slide as much as you like - PSM will NOT intervene - as witnessed personally going around paddock hill bend at Brands at high speed - slid nicely around. With PSM 'on' it braked the inside wheels (and tugged me into the bend) because it detected the slide. It destroys the pace and flow of the corner obviously but hey, at least it keeps you out the cat litter until you get a bit more experienced to know how much slide is acceptable ..

my 2p..

:-)

>> Edited by richardb.jones on Thursday 22 December 22:10

DanH

12,287 posts

261 months

Friday 23rd December 2005
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When people say PSM comes on when you brake, do they just mean the ABS does the same job as it always does? As has already been discussed here, 4 channel ABS will bring a slide under control and tuck the tail back in. Is this different to what a PSM car would do with PSM off?

cyrus1971

855 posts

240 months

Friday 23rd December 2005
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Glad it came in handy… I share your sentiments on the car. I tried selling my 996TT in the summer but still have it and am all the happier for that. I’ve taken the hit on depreciation over 4 years and 60K miles and will keep for a while longer. Still the finest all round car in the world in my opinion.

>> Edited by cyrus1971 on Friday 23 December 09:15

mogv8

836 posts

229 months

Friday 23rd December 2005
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I have only had the car out of shape big time on one occasion, and as I gently lifted the brake ready to apply throttle(as you would) I actually had the PSM apply the brake in such a manner that the brake peddle moved forward away from my foot quite dramatically. I guess it would equate to stamping on it- except I wasn't.

Under normal circumstances you would apply throttle to balance the car, but I didn't even get chance, the electronics balanced everything up and brought the car in line much quicker than I could.

I am a fan, but yes, still like to have an 'off' button

>> Edited by mogv8 on Wednesday 28th December 11:17

magriggs

875 posts

223 months

Friday 23rd December 2005
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I've got a 996 C2. It's got a button on the console marked "traction". That's different to PSM, yes?