997 Turbo / GT2 2006–2012 Turbo discussion on the 997 model Porsche 911 Twin Turbo.
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80-316km/h Video - FVD tuned

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Old Feb 22, 2014 | 04:41 PM
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80-316km/h Video - FVD tuned

except for the tune, the car is stock. (997.1 manual)
here you go:


cheers,
Luke
 
Old Feb 22, 2014 | 04:53 PM
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impressive how quickly it accelerated at those high speeds.
 
Old Feb 22, 2014 | 05:01 PM
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amazing !
***** of steel right there. do you have an LSD in it ? my heart almost stopped when you put it in neutral at 196mph !! that can quickly unsettle the car and have her go into a spin (this is where an LSD comes into play)
 
Old Feb 22, 2014 | 05:03 PM
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Originally Posted by Steve K ny
amazing !
***** of steel right there. do you have an LSD in it ? my heart almost stopped when you put it in neutral at 190mph !! that can quickly unsettle the car and have her go into a spin (this is where an LSD comes into play)
why should there be a problem going into neutral?
 

Last edited by fireballr32; Feb 22, 2014 at 05:44 PM.
Old Feb 22, 2014 | 05:57 PM
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its easy to test.. lift the car on one side, put it into neutral. if you can move the wheel that is in the air, you dont have an lsd (locking axle).

when youre accelerating at that speed, the rear of the car gets pushed down (remember, the engine itself produces downforce because of its location). once you lift , the rear lifts. of course psm is there to help, but at that kind of speed you dont want to rely on it.

when you lift off the throttle and put it into neutral, the rear wheels are not connected to eachother, so lets say the road is uneven or you hit a small bump (remember, a small bump or dip at 190 is no longer a small bump) one wheel will have less weight on it, allowing for a possibility of one wheel decelerating at a different speed compared to the other. this would then cause the back end to be unsettled (and would be very noticeable if you were to hit the brakes).
if you were to stay in gear and then lift off , the drag from the motor would settle the car better. if you've ever seen the high hp guys (hitting 200+ in the mile) with a parachute, they actually stay on throttle when releasing the chute to make sure the rear stays planted.

im betting you probably have an lsd (most euro cars came with them). and lsd locks the wheels together so that the rear doesn't get loose.
 
Old Feb 22, 2014 | 06:01 PM
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Great Info! thx a lot
 
Old Feb 22, 2014 | 06:01 PM
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watch this vid.
he stays in gear when lifting off after his top speed attempt
check this out. gt3 hitting 200 then slamming on the brakes. notice his tration control is off (the car has an LSD).
dont try this with an open diff lol
 

Last edited by DNugget991GT3; Feb 22, 2014 at 06:04 PM.
Old Feb 24, 2014 | 02:50 AM
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raced an M5 yesterday:

 

Last edited by fireballr32; Feb 24, 2014 at 04:12 AM.
Old Mar 5, 2014 | 04:31 AM
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same race....better view:

 
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