RE: Porsche centre-locks - further recalls
Discussion
FactoryPilot said:
On Porsche Cup cars the nuts are torqued to circa 450nm, so why does a road car (that occasionally gets used on track) need 600nm? Seems bonkers to me.
Because a road car will normally have far higher mileage put on it than a pure track car, and our roads are a pot-holed mess?FactoryPilot said:
And if anyone recalls, one day we were all driving around with 500nm of torque on our nuts, then suddenly in a knee-jerk reaction, Porsche call in a recall and change all the nuts (which I believe the only difference is the absence of the '500nm' lettering) and tightens them up another 100nm...
Surely adding an extra 20% of torque to the hubs, literally overnight, can't be doing the hubs much good?
I doubt that Porsche pulled 600nm out of the air and simply hoped for the best...Surely adding an extra 20% of torque to the hubs, literally overnight, can't be doing the hubs much good?
Great Pretender said:
Lighter weight and approx. eleventy cool points.
You might think it is cool. But then others will see this centre lock nut failure as an engineeringversion of a reach around. Just like this every month
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sisu said:
Great Pretender said:
Lighter weight and approx. eleventy cool points.
You might think it is cool. But then others will see this centre lock nut failure as an engineeringversion of a reach around. Just like this every month
911 S
911 4S
911 Cabriolet
911 Cabriolet 4
911 Cabriolet S
911 Cabriolet 4S
911 Targa 4
911 Targa 4S
911 GTS
911 4 GTS
911 GT2
911 GT2 RS
911 GT3
911 GT3 RS
911 Turbo
911 Turbo Cabriolet
911 Turbo S
911 Turbo S Cabriolet
I thought this was an interesting video . . .
http://youtu.be/jPpXXLF3EgQ
Showing the locking mechanism/complexity difference from "normal" centerlocks/knock offs or otherwise.
http://youtu.be/jPpXXLF3EgQ
Showing the locking mechanism/complexity difference from "normal" centerlocks/knock offs or otherwise.
PiB said:
I thought this was an interesting video . . .
http://youtu.be/jPpXXLF3EgQ
Showing the locking mechanism/complexity difference from "normal" centerlocks/knock offs or otherwise.
Exactly - these are nothing like knock ons you get in motorsport.http://youtu.be/jPpXXLF3EgQ
Showing the locking mechanism/complexity difference from "normal" centerlocks/knock offs or otherwise.
I like the centrelocks on my RS a lot as they look great... however from a practicality point of view they a real hassle when it comes to changing wheels/tyres, checking torques etc.
It Would be embarrassing for Porsche to make a u-turn and stop putting them on new GT3's etc so I suspect they will just improve the engineering.
(shameless opportunity to put up a pic of my car
)
PiB said:
Just follow the advice from the porsche engineer who has commented on the vid and you will be fine!"I herd u can put o rings or sum griped type and ill be good"
German car manufacturer in "ludicrous over engineered over complication of an otherwise simple operation and it not working, and then an unwillingness to admit they got it wrong" shocker.
Germans engineers have a terrible penchant for making things 10 times more complicated than they need to be, and by consequence introducing 10 times the expense and 10 times the number of failure modes.
My Audi is another fine example of German "engineering excellence", but only when all the little unnecessary bits and bobs are behaving which is rare.
Germans engineers have a terrible penchant for making things 10 times more complicated than they need to be, and by consequence introducing 10 times the expense and 10 times the number of failure modes.
My Audi is another fine example of German "engineering excellence", but only when all the little unnecessary bits and bobs are behaving which is rare.
dvs_dave said:
German car manufacturer in "ludicrous over engineered over complication of an otherwise simple operation and it not working, and then an unwillingness to admit they got it wrong" shocker.
Germans engineers have a terrible penchant for making things 10 times more complicated than they need to be, and by consequence introducing 10 times the expense and 10 times the number of failure modes.
My Audi is another fine example of German "engineering excellence", but only when all the little unnecessary bits and bobs are behaving which is rare.
Totally on the money. Germans engineers have a terrible penchant for making things 10 times more complicated than they need to be, and by consequence introducing 10 times the expense and 10 times the number of failure modes.
My Audi is another fine example of German "engineering excellence", but only when all the little unnecessary bits and bobs are behaving which is rare.
kambites said:
Great Pretender said:
Lighter weight and approx. eleventy cool points.
Really? How much lighter? I'd be astonished if it's more than a 50g difference per corner.IMO, it's a gimmick for people to brag about in the pub; no more.
Mermaid said:
Excellent. And now that we have a new GT3, the old one's woes will soon be forgotten.
Erm - you did notice that the new car comes with them as well didn't you? Nothing has changed - they still need a 600Nm torque wrench (and either 2 people or a selection of Heath-Robinson equipment) to remove, an extra 2 hours labour and £30 of consumables on every service and might quite likely still be lifed at a very small number of track miles...DiscoColin said:
Mermaid said:
Excellent. And now that we have a new GT3, the old one's woes will soon be forgotten.
Erm - you did notice that the new car comes with them as well didn't you? Nothing has changed - they still need a 600Nm torque wrench (and either 2 people or a selection of Heath-Robinson equipment) to remove, an extra 2 hours labour and £30 of consumables on every service and might quite likely still be lifed at a very small number of track miles...Gassing Station | General Gassing | Top of Page | What's New | My Stuff