Lost control of 35is !

ronk said:
When it happens we know that it's not not our "skill" that avoids any collision, just good look!
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Good look? What is Perry's excuse then? :rofl: :evil:
 
Thank you for all your kind and knowledgeable comments. I really have had my confidence knocked and I do sincerely hope it was just down to poor road conditions. I have never felt so helpless and really had no control over what the car did. I am thanking my lucky stars that there were no other vehicles about.

My tyres which are the OEM Bridgestone RFTs still have good tread. I don't think I need to get a wheel alignment as there was no impact.

All this after a an amazing day the previous week at Brands Hatch doing some adrenaline fuelled driving.... ouch! Straight lines were insanely good, cornering needed some practice I think- always felt a bit uncertain accelerating out of a tight bend.....

Glad I am not alone in this experience but very therapeutic to be included in others experiences.

:D JC
 
ronk said:
Out of curiosity, how would a LSD help? :?
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When one wheel hits the lose sand / earth, and the others stay on the tarmac, the power to the one wheel in the sand is cut so the wheels with grip will get the power. The same on the oil slick, the wheel that starts spinning - that will no longer get power.
 
There's a great video on YouTube somewhere that demonstrates the principle, though the commentary is unfortunately in German. I'll see if I can find it...
 
Can I ask those who have experienced these hairy moments in their Z4 whether they were on RFTs and also what the ambient temperature was at the time?

The reason I ask is that I find the grip of the RFTs drops off alarmingly at low temperatures. I have had numerous rear end excitements at relatively low speeds and in the dry when the temperature gets below ~7C!
 
I can remember reading a couple of reviews of the 35iS that suggested the chassis wasn't fully up to the job of handling the power and torque.
 
I know how a diff works and accept that as soon as one wheel lifts , then effectively there is then no further motive force - hence no more loss of traction on the non spinning wheel. (Or the other one)
However with a LSD there is available traction to the other wheel and therefore the more likely that it would also break traction .
That's why I'm confused as to why it would help in a whoops moment like this?
 
ronk said:
I know how a diff works and accept that as soon as one wheel lifts , then effectively there is then no further motive force - hence no more loss of traction on the non spinning wheel. (Or the other one)
However with a LSD there is available traction to the other wheel and therefore the more likely that it would also break traction .
That's why I'm confused as to why it would help in a whoops moment like this?
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Without knowing the cause for sure, I can't be certain but I don't believe that it would have - hence my earlier comment.
 
ronk said:
I know how a diff works and accept that as soon as one wheel lifts , then effectively there is then no further motive force - hence no more loss of traction on the non spinning wheel. (Or the other one)
However with a LSD there is available traction to the other wheel and therefore the more likely that it would also break traction .
That's why I'm confused as to why it would help in a whoops moment like this?
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Without an LSD when one wheel slips you lose drive. This causes deceleration and a weight transfer from rear to front. Rear goes light, lateral grip reduces and the tail slide ensues (the same as lift off oversteer). The LSD keeps the traction and forward motive force so no rear to front weight transfer so no onset of slide, or at least any slide is minimised.
 
It was the biggest noticeable change when I went from my 3.0 to the M - the LSD made a huge difference during autumn driving on leafs etc.
 
Possibly a little diesel and no LSD.

The best lessons in life are when we come close to disaster and walk away unscathed, but wiser. Good to here your ok.

Might be worth booking a skid pan day to keep your coffidence up and have some fun with the car :)
 
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