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Dwelling on the top end speed

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Old Oct 22, 2009 | 09:25 PM
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Dwelling on the top end speed

I've been watching these Texas Mile clips . I look at my car all pristine and such and can't help but dwell on how it would do . I read the posts about cross winds and also think of the obstacles at those speeds. I'm not really sure how much experience really counts when a car hits a speed higher than tested on a production car . I think most Turbo owners have taken a nice sprint in their cars but I do wonder how many have driven these cars at near top end speed sustained.

1) For those who have driven it sustained -- can you desribe it ? Can you also describe the changes expected at increments nearing the top end ?

2) For those who haven't --maybe you have driven it up to a high speed but let off the throttle at some point. Do you dwell on the top end ? Do you imagine reaching the point where the car is open at the top end with no more increase available? What do you anticipate it to be like ?
 
Old Oct 23, 2009 | 09:58 AM
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I had mine up to 150 and the wind noise at that speed was loud! The car still seemed very stable and had much more speed left. Personally, unitl I take some driving courses 150 is plenty for me. I leared how to drive in a 1980 911 and have been driving them for years. I cant imagine going 200mph but would love to do it some day.
 
Old Oct 23, 2009 | 10:03 AM
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There is another standing mile event planned for Novemeber, as well as one for January.....both in the Miami area. I'd suggest just taking your car out there and give it a shot. You don't have to go all-out on your first run...you can just get a feel for it, then if you're comfortable, go for it on the next couple runs.
 
Old Oct 23, 2009 | 02:08 PM
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Originally Posted by yrralis1
I've been watching these Texas Mile clips . I look at my car all pristine and such and can't help but dwell on how it would do . I read the posts about cross winds and also think of the obstacles at those speeds. I'm not really sure how much experience really counts when a car hits a speed higher than tested on a production car . I think most Turbo owners have taken a nice sprint in their cars but I do wonder how many have driven these cars at near top end speed sustained.

1) For those who have driven it sustained -- can you desribe it ? Can you also describe the changes expected at increments nearing the top end ?

2) For those who haven't --maybe you have driven it up to a high speed but let off the throttle at some point. Do you dwell on the top end ? Do you imagine reaching the point where the car is open at the top end with no more increase available? What do you anticipate it to be like ?
what speed have you taken your "beast" up to?
 
Old Oct 23, 2009 | 06:24 PM
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I'll take the 5th on posting my speed and I have felt very comfortable in all my Porsches when they are opened up but I have never top ended any of them . The one mile events look like there is plenty of room and maybe I'm just trying to come to terms with the final climb in speed . I imagine that no matter how many classes one takes , or how much of a pro driver he might be , if something goes wrong nearing 200 mph .. all the fun is lost .

I suppose finding the comfort zone may take a few runs are lower speeds .
 
Old Oct 23, 2009 | 07:29 PM
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First hand of something going wrong at 200+ mph. Joe did a great job of keeping everything under control. Hats off to him and the crew @ EVOMS
http://www.youtube.com/watch?v=8-dZl_VV4JQ
 
Old Oct 23, 2009 | 09:30 PM
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I learned a lot watching the replay several times. At 54 seconds is the intial point and there is an immediate noticeable slowdown . At about 56 sec the effect sends the car on its own course into the weeds and the entire start to finish of the spin lasts about 7 seconds . That's a very long 7 seconds . He did a great job . That's for sure .

The hardest part of the going this fast for me is the sustained speed over 160 to climb up to the even higher digits , In short .. very fast gets even faster and it lasts a long time .
 
Old Oct 23, 2009 | 11:43 PM
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Originally Posted by my997turbo
I've gotten to 160 and the car felt very stable, it was on open road so I didn't sustain it. I always wonder if I need some more downforce because there does seam to be looseness in the suspension over some of the ripples in the road.
Does any one know how to cure it, new suspension or new spoiler?
Suspension and aerokit help tremendously . Mine has damptronics, gt2 sway bar, and techart type one . I have never felt the car unstable . The worst I ever felt was a tremendous wind gust from the side and the car even withstood that but if one is at top end it woild not be fun.

Most Turbo owners will sprint or opt for a rolling start to some higher speeds .

There's a big difference though . A track course for instance offers a speed variation . A rolling start usually ends with a winner who slows down . A drag race is 1/4 mile and the speed is not top end and is more of a contest of gear shifting combined with the car's power .

A one mile event is far enough to reach the point of fear and not be at the finish line . The goal is to push that fear beyond the limit where the car's structure , the drivers nerves, and the all of the skill factors are combined and tested.

The last 10 seconds of a one mile run would be the zone .
 
Old Oct 24, 2009 | 07:17 AM
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I've been over 160 in a few of my cars and in my C5 corvette it was downright scary! I did it in the turbo with the windows down and sunroof open! It was loud as hell, but it felt much more planted than in the vette. I would love to do the Texas mile or some similar event to see what beyond that feels like.
 
Old Oct 25, 2009 | 02:57 PM
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Originally Posted by yrralis1
I'll take the 5th on posting my speed and I have felt very comfortable in all my Porsches when they are opened up but I have never top ended any of them . The one mile events look like there is plenty of room and maybe I'm just trying to come to terms with the final climb in speed . I imagine that no matter how many classes one takes , or how much of a pro driver he might be , if something goes wrong nearing 200 mph .. all the fun is lost .

I suppose finding the comfort zone may take a few runs are lower speeds .
Larry, do you have faith in those the built up your custom TT? That is what it comes down to. You can have a terrible accident driving to the corner to get milk so fear not and let it rip and enjoy all the power that your TT has. Go for it.
 
Old Oct 25, 2009 | 03:11 PM
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IMO, there is a big difference between hitting 165mph which is what a stock turbo might hit and 200+ that these behomeths do.
 
Old Oct 25, 2009 | 03:37 PM
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Originally Posted by Jasil
IMO, there is a big difference between hitting 165mph which is what a stock turbo might hit and 200+ that these behomeths do.
Stock 997TT has been clocked at 171 mph at the 08 TxMile event...pretty good for stock, but NOTHING like going 200+.
 
Old Oct 25, 2009 | 03:44 PM
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I have gotten my car up to 175mph. Car felt SOLID! I held it at 170-175 for about a 1 mile. Let me tel ly tat 1mile was very fast
 
Old Oct 25, 2009 | 04:14 PM
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I hear ya, I just said 165 for a average driver etc. In Z06 land they have 165-175mph it all depends the point is 160-170mph for 10 seconds should be pretty fun not scary.

200mph+ scary IMO.
 
Old Oct 25, 2009 | 04:23 PM
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I hit 205 mph on Daytona banking during a race in a GT2 Evo. Don't know anything about straight line high speeds. On banking the car was planted and everything was in control...except afterwards I got sick
 


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