Holley P/N A5177-SNOS Automobile Parts User Manual


 
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Figure 4A Kit Number 05177NOS Installed
4. Use the assembled bottle/bracket/blow-down tube unit as a pattern to mark for hole drilling. Drill four 5/16” holes for the
bottle bracket bolts, a 1/2” hole for the blow-down tube, and an 11/16” hole for the nitrous supply tube.
5. Mount the brackets securely to the surface (recommended minimum of 5/16” bolts).
6. Tighten the bracket clamps on the bottle.
2.4 Spray Nozzle Installation
1. Remove the upper airbox cover.
CAUTION: Debris from drilling can severely damage the engine. When drilling the spray nozzle hole, position the rag
carefully to prevent debris from contaminating your engine.
2. Measure from the back of the airbox on each side about 3”, noting the location of the ribs on the inside of the airbox. Drill a
7/16” hole on each side. See Figure 5.
3. From the inside of the upper airbox, insert a Nitrous Spray Nozzle Adapter (6) into each of the holes previously drilled. See
Figure 6.
CAUTION: Severe engine damage can occur if the spray adapter/nozzle assembly works loose from the air inlet duct.
Ensure that the nitrous spray nozzle is securely tightened in the inlet duct.
4. Using Loctite or a similar thread-locking compound on the threads, install the Spray Nozzle Adapter nuts (7) on the outside
of the airbox.
5. Install the Spray Nozzles (8) into the nozzle adapters, using Teflon past. Orient the spray nozzles to face the intake.