Got traction??? or Why published 0-60 times are completely meaningless
#1
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Got traction??? or Why published 0-60 times are completely meaningless
This video of Motor Trend testing the new Aston Martin DB 11 popped up in my YouTube feed in the last 24 hours. It's worth watching out of sheer entertainment value. Their road tester struggles to put the 600 HP down requiring a dozen runs to get it right.
Best run, uncorrected:
0-60 4.0
1/4 mile - 12.1 @ 124
The lack of linearity in the power band leads to all kinds of traction issues off the line. First bogging, then wheel spin in first and second gears. Couple that with an Automatic that doesn't want to shift in any consistent matter (he had to do the runs in manual) and no launch control, and he just mightily struggles to put the power down.
These numbers are below what a 991 will do with PDK and launch control. With nearly 200 HP less.
Of course, the trap speed in the Aston is higher, but just watching the difficulty he has launching this thing just makes me grimace. I truly believe that the 0-60 time is meaningless now that we have V6 Camcords that can break into the 5's.
Best run, uncorrected:
0-60 4.0
1/4 mile - 12.1 @ 124
The lack of linearity in the power band leads to all kinds of traction issues off the line. First bogging, then wheel spin in first and second gears. Couple that with an Automatic that doesn't want to shift in any consistent matter (he had to do the runs in manual) and no launch control, and he just mightily struggles to put the power down.
These numbers are below what a 991 will do with PDK and launch control. With nearly 200 HP less.
Of course, the trap speed in the Aston is higher, but just watching the difficulty he has launching this thing just makes me grimace. I truly believe that the 0-60 time is meaningless now that we have V6 Camcords that can break into the 5's.
#2
Instructor
As an amusing sidenote- I love Forza Horizon 3 on Xbox One and they just released the Aston Martin DB11 as a downloadable car. Quite simply, it drives like a rabid dog with ZERO traction. I had to install AWD and adjust the gearing to avoid doing a 180 on half of the launches.. So atleast Forza genuinely does try to emulate these cars accurately!
#4
Banned
Magazine 0 to 60 testing always includes Roll-out. Which equates to about .3 seconds faster than what the cars are actually doing.
A Few Words About Rollout
The term "rollout" might not be familiar, but it comes from the drag strip. The arrangement of the timing beams for drag racing can be confusing, primarily because the 7-inch separation between the "pre-stage" and "stage" beams is not the source of rollout. The pre-stage beam, which has no effect on timing, is only there to help drivers creep up to the starting position. Rollout comes from the 1-foot separation (11.5 inches, actually) between the point where the leading edge of a front tire "rolls in" to the final staging beam — triggering the countdown to the green light that starts the race — and the point where the trailing edge of that tire "rolls out" of that same beam, the triggering event that starts the clock. A driver skilled at "shallow staging" can therefore get almost a free foot of untimed acceleration before the clock officially starts, effectively achieving a rolling-start velocity of 3-5 mph and shaving the 0.3 second it typically takes to cover that distance off his elapsed time (ET) in the process.
A Few Words About Rollout
The term "rollout" might not be familiar, but it comes from the drag strip. The arrangement of the timing beams for drag racing can be confusing, primarily because the 7-inch separation between the "pre-stage" and "stage" beams is not the source of rollout. The pre-stage beam, which has no effect on timing, is only there to help drivers creep up to the starting position. Rollout comes from the 1-foot separation (11.5 inches, actually) between the point where the leading edge of a front tire "rolls in" to the final staging beam — triggering the countdown to the green light that starts the race — and the point where the trailing edge of that tire "rolls out" of that same beam, the triggering event that starts the clock. A driver skilled at "shallow staging" can therefore get almost a free foot of untimed acceleration before the clock officially starts, effectively achieving a rolling-start velocity of 3-5 mph and shaving the 0.3 second it typically takes to cover that distance off his elapsed time (ET) in the process.
#5
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Sounds good. You can hear a lot of the boost blow off. No heat soak....impressive. Don't like the 4 narrow and long hood vents.
Last edited by LexVan; 02-13-2017 at 11:41 AM.
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#11
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Originally Posted by STG
Why do they turn traction control off anyway?
#12
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Why? Because it sells cars.
#13
Drifting
That is where we get into the discussion of the C2S vs C4S and the Turbo/S models. The AWD cars seem to report -0.1 sec zero to 60 as compared to the same RWD models. In daily driving on wet, frosty or snow/ice surfaces, I'm sure the difference is much greater. Most people seem to like the oversteer feeling of RWD models though. I ordered a C4 to give me better traction in marginal conditions.
#14
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My point exactly.
911's have always punched above their weight because of traction. My point in posting this sorta OT video was that even in this day and age of computer controlled everything, nice to see that 911's still hold their own against bigger fish. That rear engine just really helps off the line and out of corners.
911's have always punched above their weight because of traction. My point in posting this sorta OT video was that even in this day and age of computer controlled everything, nice to see that 911's still hold their own against bigger fish. That rear engine just really helps off the line and out of corners.
#15
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That is where we get into the discussion of the C2S vs C4S and the Turbo/S models. The AWD cars seem to report -0.1 sec zero to 60 as compared to the same RWD models. In daily driving on wet, frosty or snow/ice surfaces, I'm sure the difference is much greater. Most people seem to like the oversteer feeling of RWD models though. I ordered a C4 to give me better traction in marginal conditions.
While I was watching it, I was thinking of this article and video where R&T just hammered on a 911 Turbo, seeing how it did over the course of 50+ launches. They ended up launching the car 61 times, varying the 0-60 run from 2.6 to 2.9 seconds. What a beast.
http://www.roadandtrack.com/new-cars...-65-7-roa0314/