997.1 RS slow speed, straight damp road, lost control, why?
Discussion
ruebdo said:
Never had any issues in my last GT3 which was tracked in all weathers, and driven across Europe!!
+1Never had a problem with over 4 GT3s, different weather situations, tyres, temperatures, speeds, etc, etc.
Yes, I did once...but that was due to aggressive driving in the wet...and even then it was only a wheel spin (admittedly cold, wet, and rear tyres which were almost slicks!)
Posh868 said:
.. if you're like me with only 8 trackdays, no racing experience, and a moderate knowledge of car control, you've a high risk of crashing. So be careful.
I have NO racing experienceI have NO drifting experience
and
I have done LESS than 8 trackdays
I spanked my 997.1 GT3 across Europe in the rain, snow, sleet and fog and I am alive to tell the tale!
Posh868, not wishing to cast apersions here but are you SURE its the car at fault?
If you are then please check the geo and try replacing the tyres with Michelin Pilot Super Sports.
Posh868 said:
Yes, based on the feedback and research, I've all but ruled out the diff as the issue.
I do believe that in summary all those links conclude that the car (911 in general, possibly GT3 especially) can be unpredictable, and if this thread serves for others to be overly careful with theirs, then great. I for one am totally surprised by the findings and totally didn't expect this behaviour from the car.
And yes again, if you were a terrifically experienced driver, with much drifting and car control under your belt, and lightening fast reflexes; you may stand a chance when she decides to go.
But .. if you're like me with only 8 trackdays, no racing experience, and a moderate knowledge of car control, you've a high risk of crashing. So be careful.
......especially if you take your eyes off the road.I do believe that in summary all those links conclude that the car (911 in general, possibly GT3 especially) can be unpredictable, and if this thread serves for others to be overly careful with theirs, then great. I for one am totally surprised by the findings and totally didn't expect this behaviour from the car.
And yes again, if you were a terrifically experienced driver, with much drifting and car control under your belt, and lightening fast reflexes; you may stand a chance when she decides to go.
But .. if you're like me with only 8 trackdays, no racing experience, and a moderate knowledge of car control, you've a high risk of crashing. So be careful.
IanHg said:
So have none of you felt your cars go all floaty in the wet on worn tyres?
Yes, on Cups , absolutely.I never suffered any similar symptoms on PS2s even in cold/wet conditions and even when they were near the end.
The MPSS are too new to know yet but seem immense when its warm and dry especially.
There's a LOT of feedback through the wheel and the seat of your pants in GT3s, any moving around at all is communicated transparently, can make the driver feel more nervous than he needs to.
It's break away characteristics on properly set up Geo are however very benign indeed IME. Pretty friendly TBH and not likely to deposit you in a hedge.
I've a 7.1RS, owned for 3 years now, have little balls, no hair on my chest and only a few trackdays under my belt.
I've driven my car in most weathers (up in NE Scotland so sh!te weather a lot of the time)and only twice have I scared myself, both times when I was caught on the dual carriageway when there was standing water covering both lanes. 50mph on 3mm P Zero corsa's and the TC light flashing as "normal" cars and jeeps flew past, raised my heart rate a few beats but it was all to do with the depth of water and the limited tread depth, not the car. In "normal" rainy days it's fine and doesn't try to kill me
I've driven my car in most weathers (up in NE Scotland so sh!te weather a lot of the time)and only twice have I scared myself, both times when I was caught on the dual carriageway when there was standing water covering both lanes. 50mph on 3mm P Zero corsa's and the TC light flashing as "normal" cars and jeeps flew past, raised my heart rate a few beats but it was all to do with the depth of water and the limited tread depth, not the car. In "normal" rainy days it's fine and doesn't try to kill me
Dblue said:
Yes, on Cups , absolutely.
I never suffered any similar symptoms on PS2s even in cold/wet conditions and even when they were near the end.
The MPSS are too new to know yet but seem immense when its warm and dry especially.
There's a LOT of feedback through the wheel and the seat of your pants in GT3s, any moving around at all is communicated transparently, can make the driver feel more nervous than he needs to.
It's break away characteristics on properly set up Geo are however very benign indeed IME. Pretty friendly TBH and not likely to deposit you in a hedge.
I don't see it as a GT3 thing. I suspect that any wide tyre with a shallow tread (either track tyres or well worn road tyres) make aquaplaning quite likely. Maybe a light front end makes it more likely. I know that I slow down quite a lot on the motorway when it's wet - narrow tyres and lots of weight seem much better in the wet - white vans get even faster.I never suffered any similar symptoms on PS2s even in cold/wet conditions and even when they were near the end.
The MPSS are too new to know yet but seem immense when its warm and dry especially.
There's a LOT of feedback through the wheel and the seat of your pants in GT3s, any moving around at all is communicated transparently, can make the driver feel more nervous than he needs to.
It's break away characteristics on properly set up Geo are however very benign indeed IME. Pretty friendly TBH and not likely to deposit you in a hedge.
mrdemon said:
V8KSN said:
If you are then please check the geo and try replacing the tyres with Michelin Pilot Super Sports.
so you want him to fit a tyre Porsche does not even approve ?The MPSS is a quantitive improvement on a PS2 for example , or else what the hell are Michelin playing at, but NOT N Rated for a 2007 GT3.
So fitting a better, improved tyre that was not around when the car was new makes a lot of sense.
IanHg said:
I don't see it as a GT3 thing. I suspect that any wide tyre with a shallow tread (either track tyres or well worn road tyres) make aquaplaning quite likely. Maybe a light front end makes it more likely. I know that I slow down quite a lot on the motorway when it's wet - narrow tyres and lots of weight seem much better in the wet - white vans get even faster.
I suspect this is spot on. Wide surface to slide over the water and not a huge amount of tread to filter it away. The relative lightness of the front end is probably not a help, especially under acceleration taking the weight backwards. Might this also explain why lowish speeds are bad - less downforce?I also agree with the chap that said that you are more aware of things getting dicey in a Porsche. I can feel what is going on with the tyres in the wet (987.2 S), whereas in crap cars I feel nothing through my hands, feet and arse so only know something is wrong when the car actually moves sideways or refuses to slow. I suspect that people driving cars with less feedback get close to the limits in the wet without even knowing it, whereas Porsche drivers poo themselves as they feel how little grip they actually have.
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