Getting acceleration data from GT4

[Triangle 13610]

The data logger sucks. Really sucks.

You can't get a velocity-time graph. Only a velocity-distance one is available, and it is mostly of no use. (Fixed distance acceleration runs are unreliable, in my opinion.)

So, are their any ways to gather acceleration data from GT4?

 

[Christhedude]

why you wanna know that?

 

[Cracker Jack]

"(Fixed distance acceleration runs are unreliable, in my opinion.)"

I don't know what you mean by "unreliable".

'Power and Speed' is the best way to test acceleration. You can jot down the times, make changes to the car, jot down some more times. Take B-spec Bob onto a practice course for a few laps. He'll give a good idea what to expect out of a car.

 

[9D8TSIAWD]

I do wish there was a 0-60 measurement when you run the 400m

 

[Sycoarkantos]

To do that, U just pause it when you get to 60mph and jot down the time

 

[<_Spike_>]

On super fast acceleration cars you gotta be quick with the pause button

 

[Alfaholic]

To do that, U just pause it when you get to 60mph and jot down the time

I use that method. However, it can produce variations of up to a half a second, so I tend to watch the replay a few times. A better method would be to record the replay, or indeed a recording of the actual run while in progress, on your VCR / DVD recorder, and then pause THAT instead. Then you should be able to be accurate to the refresh rate of the recording medium, which will probably be something like 1/12 to 1/24th of a second. That would be more accurate and faster than the GT4 replay and pause function, but personally I'm happy taking estimates and that all seems like hard work...

 

[DeSwyft]

You mean like a Dynamic Acceleration test, where they put the car on those 2 cylinders and run the car on full throttle, and analyzing data?

Juiced has them, but too bad GT doesnt

 

[eg6_dude]

DeSwift I think he means a real world acceleration test like magazines do when they reveiw a car. Like 0-60, 0-100 and suff of that nature, not a test done on a dyno.👍

In my previous experience in this matter the above posts described the best way I have seen to do this test.

 

[topgeardude]

I can count it,but its hard with fast cars.

 

[eg6_dude]

Thats not very accurate though!

 

[Scaff]

I've used the pause button method on quite a few tests I've run in the past, Alfa is however quite right that a good margin for error does exist. Which is why I used to use the average of at least six runs for the final figure.


Regards

Scaff

 

[amp88]

If you have a capture card you can capture a run then check the details with a video editing tool that allows frame-by-frame selection. Margin of error is a few hundredths of a second if you capture the video at 25fps. Here's an example of what you can do.