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Lapping the Nürburgring in Porsche GT3R


Team Adam's

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That supercharger whine :drool: :drool: :drool:

 

I think it's the electric motors you hear:

 

actually you're both wrong... that would be the gears screaming... in a car like that the gearing is whats known as 'straight cut gears' which are pretty common on GT, WRC, and cars like that. Almost any video of a GT car like that lapping somewhere will have the distinctive 'scream' plus add to the fact that the cars don't have carpet or sound deadening inside to save weight the sound is even more pronounced. For an example of how loud they get check out this video:

 

<iframe width="640" height="480" src="http://www.youtube.com/embed/dmJH84FnQa8?rel=0" frameborder="0" allowfullscreen></iframe>

 

The original idea behind straight-cut gears (cut at 90 degrees across the gear) was really ease of manufacture. Where limited numbers of gears are made for development – be it standard or motorsport – straight-cut gears are far cheaper and easier to produce. A multitude of gear ratio options being available by ‘correcting’ proper tooth profiles to suit - excruciatingly difficult and not economically viable with helical teeth where very much more expensive tooling’s needed. Other bonuses were reduced loads and drag inherent in the helical (cut at an angle across the gear) design – therefore leaving more power to drive the car. Additionally straight-cuts are stronger than helical gears. Helical cut teeth run quieter as they’re almost constantly engaged, also eliminating shock loads.
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actually you're both wrong... that would be the gears screaming... in a car like that the gearing is whats known as 'straight cut gears' which are pretty common on GT, WRC, and cars like that. Almost any video of a GT car like that lapping somewhere will have the distinctive 'scream' plus add to the fact that the cars don't have carpet or sound deadening inside to save weight the sound is even more pronounced. For an example of how loud they get check out this video:

 

<IFRAME height=480 src="http://www.youtube.com/embed/dmJH84FnQa8?rel=0" frameBorder=0 width=640 allowfullscreen></IFRAME>

 

Thank You for the clarification,for all of us Dylan :)

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Thanks for posting D, I love watching those!

 

Kind of sad though, he passed a TTRS just after waving at 5:40....bwahahaha. I guess after 24 hours though, the last lap isn't going to be wire to wire, so you have to thank the fans :)

 

Oooooh, got a little loose at 6:02...

 

What kind of car passed him coming out of the pit? He never caught him.

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