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I though it was strange right after service if it was to be caused by an impact or wear. But I have no idea how much diagnostics they do in service (and how many sensors they have to monitor the health).Quote:
Originally Posted by Mirek
If it was just caused by a hidden manufacturing defect or something like that I get that it's not strange.
Could maybe have something to do with them running the car higher than normal, causes more stress on the drive shaft joints due to the angle they are at.Quote:
Originally Posted by mknight
Just out of interest, did anyone on here manage to drive the stages in a rental?
Actually, the parts I’ve mentioned (after a quick check on onboards) were quite narrow (the second is where Evans/Ostberg drama took place), resulting on a harsh combination of deep roots and big stones.Quote:
Originally Posted by Indreq
Who am I to question Kopecky words, but from the onboards anyone can see that the most problematic sections of Friday stages weren’t that long and Saturday or Sunday SS’s were far less rough. What probably made his life harder was having to deal with a permanent rocky surface, once WRC2 tyres are still looking to be more prone to punctures.Quote:
Originally Posted by Mirek
specially with a lot of steering.Quote:
Originally Posted by Mirek
Well, I think that there is no way how to find some internal cracks in the material during service stop because You can't do an X-Ray or ultrasonic scan there. You have to trust Your experience. The thing is that if there is a crack in the material already initiated it will most likely result in a breakage when there is the highest load. That is when there is the highest torque (acceleration on first gear from zero speed) or when there is high torque combined with an extreme angle of the driveshaft joint (full steering at jump landing as the most extreme case).Quote:
Originally Posted by mknight
Yes, I know that on asphalt with gr.N Civic You can nearly brake the driveshaft at will...Quote:
Originally Posted by dimviii
i am driving competitively off-road and there sure way to break driveshaft or diff is when slipping tire suddenly finds traction. Especially on low gears when lot of torque is applied. Could be similar thing on 1st gear corners also in rally - quite slowly rotating tires at full engine power (= huge torque applied) and if thread catches at some edge of embedded rock then it easily may break something. At higher speeds torque is substantially smaller. And torque is what breaks things.Quote:
Originally Posted by dimviii
True. Strangely, when i did some light hobby-rallying 2003-2007 (FWD Kadett GSI, 190hp) then most driveshafts i broke during winter, on spikes (swedish rally tire). Perhaps because i drove very little on tarmac...Quote:
Originally Posted by Mirek
100% agree! Rally is not a circuit racing and sometimes you need to lift the right leg....tactical approach.Quote:
Originally Posted by AnttiL
Having said that, you must consider the small amount of competitors. Only those having enough money to spend on a car in an one off rally, more or less useless after such rally.Quote:
Originally Posted by Ucci
There´s been much talk like black and white. I´m not against different kinds of rallies, but much of what have been seen from Turkey isn´t in favour for more of this hard ad ruff kind of rallies.