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Sample Autocross Performance Data

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Old Apr 5, 2004 | 03:30 PM
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FT@SELGP's Avatar
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Sample Autocross Performance Data

I thought I share some of example work we have been doing over the winter with this software:

We use MaxQData to collect various performance data, and we had some issues in adapting it to newer ODBII vehicles, specifically the Japanese cars. I think we finally worked out most if not all of the major problems. This past Sunday, we hooked it up to one of the Evo 8's that was running, and here is a sample:

I have not run the course, nor do I have the course map with me, so at this early analysis, I cannot tell where exactly the vehicle was, but still nice to look at IMHO

The data shows lateral and longitutal Gs, yaw rate, RPM, Speed (mph) and throttle position. This vehicle with custom JIC FLTA2-RS coilovers, Endless brake pads, Toyo RA-1s and turboback exhaust was able to pull 1.1 to 1.2 sustained lateral Gs (after normalization), ~0.80-0.85 G acceleration, and 1.4 to 1.5 G braking Eventually, the driver pulled something like a 54.1xx I believe on the fourth run, the below reading are from one of the slower runs with 55.2xx.

One of the skidpads:


The final slalom section:


Acceleration through a right-left turn:


Starting launch:
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Old Apr 5, 2004 | 03:54 PM
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That's very cool and useful data acquisition, but is it possible to scale the plots or use more than one Y-axis so that you can separate the curves to make it easier to read?
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Old Apr 5, 2004 | 08:15 PM
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Yes you can certainly do that. You can select multiple sensors or just few, put multiple runs on to a single chart to compare one or two sensors in different runs and see if a certain change in equipment or driving style has made a positive impact, etc. You can zoom in out to get a complete or detail view as well

The above are just screen shots of couple of interesting points.
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Old Apr 8, 2004 | 07:24 PM
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very impressive..... so were you faster than this evo
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Old Apr 9, 2004 | 03:54 AM
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Originally posted by Darwinator
very impressive..... so were you faster than this evo
LOL, we'll find out next weekend; I did not run this event as I had just picked up our STi from the shop after our VIR crash; I hadn't perform a full check on the car.

But in our first regional SCCA event, with this Evo, I got 2nd place in ESP This setup with a custom tune JIC is really amazing.
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