AH Hell....Its Christmas time......
Try the following.....
Your jetting is good.
1. Warm the propane bottle to maintain 160 psi.
2. Check the propane solenoid filter to insure that it is
not clogged. (propane can be "dirty")
3. Warm the nitrous bottle to maintain 1050 psi
4. Insure that you are getting propane by spraying the
system with the nitrous bottle OFF. Remove the intake tubes
if neccessary so that you can visually see propane spraying.
5. If you are not certain that propane is flowing, make a dyno
pull with propane only and read the a/f for enrichment. Keep in
mind that propane is a FUEL SOURCE, not a power adder. The
increase in torque is a side benefit of the properties of propane.
6. Check tire pressure, the rear tires should be set to the
stock tire pressure of 29 psi. Drag radials and slicks may reduce
dyno measured torque.
MOST IMPORTANT ITEM.....................
Start the dyno pull at 2800 RPM and terminate it at 5000 rpm max!
Starting a dyno pull above 3200 rpm will show a drastic reduction in
torque as peak torque happens at or before 3200 rpm on most stock
type Vipers.
Good luck
If it still does not make at least 800-900 ft/lbs of torque, give
me a call.
