Dyno Tuning.

 The first step to Dyno Tuning is to determine from the customer
if the vehicle has any particular problems or points of concern, 
ie: gas mileage, surging, lack of power, hard starting (hot or cold), 
pinging, missing, etc.
 
 After the customer interview, the engine compression is checked 
to determine if the engine is mechanically sound. At the same 
time, a visual inspection for obvious problems will be made, such 
as broken vacuum lines, oil soaked, burned, or brittle plug wires, 
excessively dirty carburettor, etc. 
 
 The distributor is then removed and placed in a synchrograph, 
which is a machine for dynamically, and thoroughly, testing the 
distributor. After determining that the distributor is mechanically
sound, the centrifugal advance rate is modified to improve engine
responsiveness and pulling power, and the vacuum advance is set. 
The ignition components are inspected, and replaced if necessary.
Since the synchrograph tests the distributor under actual operating
conditions, there is no doubt that it will function properly when
installed in your vehicle. This process is called "recurving" the 
distributor.
 
 Next, your vehicle is placed on the dynamometer, with the driving
wheels on the dyno rollers. Your vehicle is tested with the engine
running, in gear, and under various speeds and load conditions. 
While running these tests the engine performance is monitored by 
comparing the horse power transmitted to the drive wheels in 
relation to the amount of engine vacuum. Simultaneously, the exhaust
analyser will be monitoring the carburetion to check each circuit
of the carburettor. These circuits will then be changed to produce
the maximum drive-ability and efficiency.
 
 When done, (usually in 2-4 hours), you should receive a detailed
test sheet of your vehicles Dyno Tune-up specifications.