SuperFlow AutoDyn, Operator'S Manual

Page: 77 / 208

AutoDyn
Operators Manual
Section 6 - Page 24
CH6 AutoDyn Operation.fm
Although this method may be the least accurate (usually to /- 1%), it is a viable method to
use when the others either do not work or are not feasible. When using the method with the
ProFilter feature, the resultant RPM increments may not be exactly even.
Keep in mind, this method will not work with vehicles equipped with an automatic transmission.
Nor can you obtain an accurate engine speed reading if you change transmission gears during the
test.
The ENG_SPD test profile provides an easy and automatic way of calculating the channel 94
value. Run the test and follow the instructions. We suggest that once the correct value is
determined, save a Specification file for that vehicle to expedite setup for future tests.
6.9.4 Engine Speed Setup
All the previously described methods are preset in the WinDyn default configuration files. They are
selectable via the following Specifications Channels:
Channel 85 - IgnPck Default Value 1
Channel 85 is used to select the engine speed calculation method desired
for channel 125. A one (1) in this channel enables input signals from
channel 11, an inductive spark pickup, coil pick-up or for the direct tach
wire connection. A zero (0) in this channel will disable channel 11 inputs
to the calculations in channel 125.
Channel 86 - OpTach Default Value 0
Channel 86 is used to select the engine speed calculation method desired
for channel 125. A one (1) in this channel enables input signals from
channel 9, an optical pickup. A zero (0) in this channel will disable
channel 9 inputs to the calculations in channel 125.
Channel 87 - CalTac Default Value 0
Channel 87 is used to select the engine speed calculation method desired
for channel 125. A one (1) in this channel enables engine speed
calculations with no signal input device, instead using roll speed in MPH,
tire diameter, and overall ratio. A zero (0) in this channel will disable these
calculations in channel 125.
To use a specific method, simply enable the appropriate method by setting the proper specification
channel to a value of "1" and turning off the other methods by setting their specification values to a
"0". This can be done via the WinDyn Specifications tool bar icon, by pressing the "S" key on the
computer keyboard, or via the handheld Configure|Specs|Edit menu. It can also be done
automatically by running the Eng_Spd test profile.