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Installation Guide
For the Automotive Dynamometer
Pit Model (248)
Dynojet Research Inc.
®
Revision B 5/16/00 Document #98219100
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© 1993, 1994, 1995, 1996, 1997,1998 and 1999 Dynojet Research Inc. All Rights Reserved. Dynojet Installation Guide for use with Dynojet’s Automobile Dynamometer model 248. This manual is furnished under license and may only be used or copied in accordance with the terms of such license. The information in this manual is furnished for informational use only, is subject to change without notice, and should not be construed as a commitment by Dynojet Research Inc. Dynojet Research Inc. assumes no r
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Contents Chapter 1 ..............................................1 - 1 Initial Setup and Requirements Introduction ............................................................................1 - 1 Dyno Placement ....................................................................1 - 2 DynoWare EX+ Placement ....................................................1 - 4 Computer Placement ............................................................1 - 5 Requirements to Unload Truck.................
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Chapter 3 ..............................................3 - 1 Installing Dynamometer Preparing Pit for Dyno ..........................................................3 - 1 Installing the Brakes ..............................................................3 - 4 Wiring the Dyno ......................................................................3 - 6 Installing the Long Lateral Supports..................................3 - 17 Lowering the Dyno Into the Pit ......................................
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Chapter 1 Initial Setup and Requirements Thank you for purchasing the Dynojet Automotive Dynamometer. This document will give you the information you need to install the Dynojet Dynamometer (pit model). If you have any questions please call Dynojet at (800) 992-4993. Introduction Before installing your Dynojet Dynamometer, there are a few factors to consider. This chapter “Initial Setup and Requirements” is a brief overview of what you need to know to install your Dynamometer and an overview o
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Dyno Placement The first step to installing your Dynojet Dynamometer is to decide where you want to position the Dyno in your shop. Do you want to drive the vehicle into the shop forward, or back it in? Do you have equipment or tools located in your shop that would be more convenient to use based on the placement of the Dyno? There are two basic methods to position the Dyno in your shop. Method 1 This image represents a rear This image represents a front wheel drive car on a dyno wheel drive ca
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Note: The Dynamometer drums can rotate in either direction Choose the Dyno placement that best matches your shop and types of vehicles you work on. This image represents a dyno near the garage door. This image represents a dyno away from the garage door. Note: Refer to the technical drawings in Appendix A. Document #98219100 1 - 3
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DynoWare EX+ Placement The DynoWare EX+ system is comprised of four modules: the CPU module, the Dynamometer Input/Output module, the RPM module and the Atmospheric module. The Dynamometer Input/Output module connects to the dynamometer. (A 20 foot (6.1 meter) long cable is provided.) The CPU module connects to a personal computer. (A 12 foot (3.7 meter) long cable is provided.) RPM Pickups and a Hand Held Pendant also connect to the modules. These modules need to be located where they wil
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Computer Placement The driver of the vehicle must be able to view the computer monitor and the DynoWare EX+ during a run. If you will be running both front and rear wheel drive vehicles you will need to find a way for the driver to see them both. This image represents the location of the computer and DynoWare EX+ for a front wheel drive car. This image represents the location of the computer DynoWare EX+ for a rear wheel drive car. Note: A possible solution would be to place the computer and t
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Requirements to Unload Truck When your dyno arrives, you must provide equipment to unload the dynamometer from the truck, with skids or forks a minimum of 6 inchs wide by 6 feet long. It must be capable of lifting and moving at least 8000 pounds (3642 KG). The dyno has 2 C-Channels that run lengthwise along the bottom of the dyno. Unload the dynamometer using these channels. Pit Requirements You must provide a dyno pit. Dyno pit dimensions are provided in the technical drawing CAR DYNO FINISHED
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Requirements to Install the Dynamometer When you install the dynamometer, you need equipment capable of lifting and moving at least 8000 pounds (3642 KG). Document #98219100 1 - 7
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Other Requirements Shop Air - The dyno air brake requires a 3 / " air hose with a minimum pressure of 8 60 psi. You must provide a 3/8" air line that will reach from the dynamometer to the Air Pressure Regulator and another air hose to connect the regulator to your shop air supply. Computer - You must provide a compatible computer and printer. The system must meet the following minimum requirements: Pentium P5-100 or faster Pentium computer Windows 95 800 megabyte HD Eight megabytes o
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Optional Accessories Covers Dynojet can provide optional covers for your Dynamometer. You may purchase these covers at an additional cost or build them from the diagrams in Appendix B. Extended Hand Held Pendant Cable 40 foot (12.2 meter) Hand Held Pendant cable Part Number: DC100-104L Document #98219100 1 - 9
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Uncrating the Dyno Step 1 Use a crowbar or the like to remove the plywood shipping shell from the dynamometer. Remove the top of the crate. (If you ordered the dyno with the optional pit covers, they will be in the top portion of the crate.) Remove the sides of the crate. Remove the bottom skids and discard. Step 2 Carefully remove the cardboard boxes and brake weldments that are stored within the dynamometer’s frame. 1 - 10 Document #98219100
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Step 4 Verify that the cardboard boxes contain the following: Brake Hardware: 2 brake weldments (The following are attached to the dyno frame) six 5/8" bolts six 5/8" lock washers six 5/8" flat washers six 5/8" nuts Mounting Hardware: 9- 1" UNC nuts 6- 1" Flat washers 3- 1" Lock washers Support Hardware: 2 Long lateral Supports 2 Short lateral Supports (in the non brake side of the dyno frame). Electronic Hardware: Pictures and descriptions on page 3-6: Document #98219100
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Ground Hooks: 8 Ground Hooks Straps: 2 axle straps 4 ratchet straps 2 ratchet straps with sleeves Chocks (4): 1 - 12 Document #98219100
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Chapter 2 Hardware Installation DynoWare EX+ The standard dynamometer electronics package is comprised of 4 interconnected modules: System Expansion Connector Atmospheric Sensing Module RPM Module Dynamometer Input/Output Module CPU Module Atmospheric Sensing Module: The atmospheric sensing module measures absolute pressure, air temperature and relative humidity. These measurements are used by WinPEP to correct power and torque measurements to standard atmospheric conditions according to a DIN,
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RPM Module: The RPM module receives and processes signals from up to 2 inductive pickups for measurement of engine RPM. Each input has an automatic gain circuit to compensate for a wide variance of ignition systems. The green LED glows when the RPM module is receiving power. The amber LED flashes when an RPM signal is detected. A steady flash rate, proportional to engine RPM, indicates a good RPM signal. These connectors are the inputs for both primary and secondary inductive pickup clips. Eithe
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Dynamometer Input/Output Module: The dynamometer I/O module sends and receives data from the dynamometer and the hand held pendant. The module also contains a buzzer and light which are activated when either the vehicle or dynamometer speed limit is approached. The green LED glows when the dynamometer input/output module is receiving power. The amber LED flashes proportionally to dynamometer drum RPM. This 25-pin receptacle connects to the shielded cable from the dynamometer. This 9-pin receptac
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CPU Module: The CPU module contains a 32-bit processor which acquires data from the expansion modules and communicates to the main computer running the WinPEP software. The processor queries the expansion modules to determine their identity and capabilities. The green LED glows when the CPU module is receiving power. The blue LED is lighted when data from the modules is being acquired and saved. One of these connectors is used to communicate to the main computer. The 9-pin receptacle (left) conn
