Opinions Re Data Systems

[jsceash]

Originally Posted by MaxD

JEDD,

AIM is popular because it offers many of the features of Pro systems (Motec, Pi/Cosworth, Bosch, etc.) at significantly lower cost. The VBOX systems have significantly better video capture and functionality than AIM.

There are pro's and con's to them all.

The K-line output from the Boxster ECU is far too slow to really capture meaningful data. It has many of the right channels. TPS for instance would not even remotely show you accurately where you were full throttle on corner exit. That why additional sensors are the way to go, or taping the signal from the TPS in this case.

My experience with Aim is this exact thing. My speedometer show one thing on track and on replay is often 5 MPH lower Tack is similar. So you never see your peek speed on video. and my gas pedal was often 40 to 60 % when I know it was matted.

[MJP911]

Originally Posted by jsceash

My experience with Aim is this exact thing. My speedometer show one thing on track and on replay is often 5 MPH lower Tack is similar. So you never see your peek speed on video. and my gas pedal was often 40 to 60 % when I know it was matted.

The difference in speed is due to the way car speedometers are set up. Most manufacturers, Porsche included, set the speedometer to read a little faster than actual. If you get speed data from GPS or an actual speed reading from the CAN bus, it is likely to be about 5mph slower at speed than what you see on the speedo. I have 2010 BMW M5 and using an aftermarket coding tool I can disable this speed "correction" on the speedometer.

[Topless]

Data systems are wide open and you can literally spend $5k on a cutting edge 4 camera system or go dirt cheap with Harry's or RaceChrono iphone apps and anywhere in between.

The app based systems software is continually being updated and offer lap times, predictive lap, lateral /g comparisons, best lap comparisons, corner by corner comparisons, sector times, water temp, oil pressure, and multiple camera input. They don't do everything a fully integrated race system will but may get you 90% of the way at around 1% of the cost. Best bang for the buck these days. Great tools for driver development.