Software by Jimbo

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The programs below are some of my various dabblings with programming. All the programs are free. Source code is available upon request. Note: Some browsers cannot handle downloading EXE files without proper configuration.  If you click on any link below you should get a message asking where you want to save the file to.  If not, try right clicking and "save as...". If that too fails, email me and I can send you a copy.

This is an Excel 97 spreadsheet.  It will help you select the proper size of fuel injectors, fuel pump, and FMU.  It will calculate airflow rates too.  It also has a worksheet for estimating power and performance for both naturally aspirated engines and forced induction engines.  It can estimate BSFC and calculate air and fuel requirements based on desired air fuel ratios too.  It also has a listing of OEM injectors and their flow rates.  Then I got carried away and added a virtual dyno that lets you enter a set of times to speeds and graph power and torque.  It will even give you engine speeds for all your trans ratios.  If you don't have Excel '97 or newer, just go to Microsofts download page and get their free viewer.  The name "injectors.xls" does not really describe all that it does anymore.

SDADatalogger B&B Electronics 232SDA12 data logger program

This program is written in C#.Net 2008 for the B&B Electronics 232SDA12 data logger module. It runs in Vista and XP (requires Mictosoft .Net 3.5). It may run on some older platforms as well. It logs the data to a CSV file for easy viewing with most spreadsheets and databases. It has scalable gauges for each channel and a scope window. It reads maps for each analog channel to convert to engineering units. Very handy for automotive type work such as tuning or troubleshooting. The data acquisition modules from B&B are very inexpensive (like well under $100).

Visit the SoruceForge page for the details and source code: http://bb232sda12datal.sourceforge.net or http://sourceforge.net/projects/bb232sda12datal/

Weather Web Uploader

This program is designed to run with any weather station that uses Weather Display software. It reads the data file created by Weather Display and uploads the data to the Weather Underground. Weather Display can do that directly but they charge for that. My program is free. It is also very configurable so it can really work with any program that creates a CSV data file. It is written in C#.Net.

Weather Station Data Logger

This is an open source project on Source Forge. This program was written by Weber Anderson but I have contributed to it. The software directly reads and parses Oregon Scientific WMR100 USB data. It uploads to Weather Underground, Citizens Weather Observer Program, PWS, and an html page you choose. It stores the data locally in csv but there is also a program to pull that into a database. I have integrated X10 controls into it to control sprinklers and HVAC as well by creating a plug-in using the UDP interface to WSDL. I made that project open source as well and you can find it here.

Drivetrain Designer

This program is a modern replacement for the old DRIVE.EXE below. I am adding more functions but this is a good start. It helps select gear ratios and tire sizes. It has a plot of the speed versus rpm.

Android Bluetooth Volume Manager

This is the first Android application I wrote. It captures the current media volume setting, max the media volume when a bluetooth streaming device connects, then set the media volume back down when the bluetooth streaming device disconnects. I captures your location on disconnect from bluetooth or car mode too so you can find your car. You can also scan for bluetooth A2DP devices to see what is currently bonded. It runs as a service. Here is the open source project: http://code.google.com/p/a2dpvolume/ for all the details. You can scan the image below with your Android device to find it on Android Market.

The programs below are very old and dated now but they still work. You can download them individually or just download JTOOLS.ZIP.  It contains all the files below plus a cheezy little menu program. All the files are old DOS executables. You can run them in a DOS window in any version of Windows. Just double click the file after your download it

DRIVE.EXE Gear/Tire selector

This program will allow the user to select the proper gear ratio and tire size for the desired speed/rpm. It will also convert radial tire designations to tire dimensions and visa versa. It allows you to enter 6 transmission gear ratios (including reverse if you like) and it will show a chart of speed vs. rpm for all gears.  It will calculate speedometer PSOM constant and speedometer drive/driven gear parameters for Ford vehicles and others.  You can change nearly any input value and the program will recalculate the rest based on your changes.  It allows you to save data files too.  Similar to GEAR.EXE but much nicer to use.

GEAR.EXE Gear/Tire selector

This program will allow the user to select the proper gear ratio and tire size for the desired speed/rpm. This program will also tell the user how to calibrate a Ford PSOM speedometer to tire size changes.

SPEED.EXE Speedometer Calibrator

This program is for calibrating speedometers. The user enters the time in seconds between mileposts and the speedometer reading at that time. This program will tell the user which speedometer driven gear to install based on the current gear for gear drive systems. On Ford PSOM systems this program will give instructions on how to change the calibration constant.

POWER.EXE Horsepower Estimator

This program will estimate the average rear wheel horsepower applied to the track by an automobile during a quarter mile drag race. Rolling resistance, aerodynamic drag, and inertial forces are all considered and reported. Tire slippage and power peaks are ignored. This is not the same as rated horsepower but can be useful for comparing engine performance.

CARB.EXE carburetor/throttle body sizer

This program will calculate carburetor and throttle body requirements based on pumping characteristics of an engine. Carburetor size is given in CFM and throttle body inside diameters are given in millimeters.  It will also size multiple plate throttle bodies. The throttle body calculations are based on power curve fit approximations to actual flow data.  It reports all values for a range of volumetric efficiencies the user can designate.  It will estimate the minimum fuel pump and injector size too.  This program was written in C.

Note: PSOM stands for Programmable Speedometer Odometer Module. They are found on all 1992 through 1996 Ford F-150 through F-super duty trucks and Econoline vans.  PSOM's have a normal speedometer needle but a digital odometer.

Freeware: This software is absolutely free of charge. Copy and distribute freely. Source code available by request.

Disclaimer: This software has been tested in every day use by a professional automotive repair facility and found to be accurate. However, no warranty as to the performance of this software or the reliability of the output from these programs are made. All speedometers must be checked against highway mileposts to be sure they are accurate. This software is distrubuted as is.

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