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December 20, 2007
Analyze Data - How To
On Track Sessions
The first few issues of On Track Sessions, a series of data analysis how-to's, in what is to become a series of such, have been published with more are on the way. There's some great information within these documents!
Oversteer and Understeer Analysis 2.2 MB PDF
Understeer and oversteer are analyzed utilizing an MXL Pro with GPS, 4 shock sensors, a steering angle sensor, front and rear brake pressure sensors, a longitudinal accelerometer, a lateral accelerometer, a gyro, 4 speed sensors, and all engine parameters from the MBE 992 ECU connection.
Full Control of Your Engine - with an LCU-ONE 2.7 MB PDF
The purpose of this MyChron4 test was to determine the effectiveness of using a Lambda sensor, often referred to as an Air-to-Fuel ratio sensor or a wide-band sensor, on two-cycle engines. While Lambda has proven the best way to tune 4-cycle engines, to the surprise of many, it's not only effective but proved to be the best way to achieve and maintain proper carburetion on 2-cycles as well. The Bosch LSU 4.9 sensor used by the AiM LCU-ONE digital lambda controller does not foul or "poison" in 2-cycle exhaust like other Lambda sensors do. Look for a follow up to this issue for some great detail on using EGT (Exhaust Gas Temperature) in conjunction with Lambda for tuning a carburetor in the best way possible.
GPS for Kart Chassis and Engine Analysis 3.5 MB PDF
Using a MyChron4 and GPS, this document illustrates how to use GPS to aid in chassis setup and even engine tuning. The data is from a 60cc kart engine with a required 18mm exhaust restrictor. Data from three separate sessions are analyzed.
Posted by Mike Jaynes at December 20, 2007 03:56 PM