Nitrous Purge Kits

Nitrous Purge Kits

Nitrous pressure should be kept consistent to obtain optimum performance. All Nitrous systems are designed to work best with a bottle pressure of 900-950 PSI. Pressure is determined by the amount of nitrous contained in the bottle and temperature. The chart below shows what happens to nitrous at various temperatures. Accordingly, it's a good idea to use an NOS or ARC bottle heater. Likewise, maintaining consistent line filling is important...which is why most racers use a purge valve to release nitrous vapor from the feed line. This provides liquid nitrous to the inlet of the solenoid(s) for better consistency and repeatability.

Purge Valves - Control System Pressure For Optimum Power!
The primary purpose of a purge valve is to release trapped air or gaseous nitrous from feed line(s). It helps to ensure consistent performances and it looks cool also. You've probably seen the Import or Pro Mod guys do it. Includes all required components.

NOS Ntimidator LED Purge Kit Features:

Unique Kit Uses Bright Blue LED
Illuminates a 4 ft. Plume of Nitrous
Strikes Fear into Nighttime Competitors
Install Easily w/Common Hand Tools
Fits All Nitrous Kits w/-4 AN Feed Line

TECH NOTE: The lower the ambient temperature, the lower the resultant bottle pressure leading to a potential fuel rich condition. Although usually not harmful to the engine, loss of optimal power can occur. On the other hand, very high ambient temperatures can lead to leaner burning conditions and loss of optimal performance as well as possible damage to engine components. Nitrous gauges are an excellent way to monitor problems before they can occur.

Click here for a full screen image.

The Relationship Between Bottle
Temperatures and Nitrous Pressure

BOTTLE TEMP. °F	BOTTLE PRESSURE (PSI)
-30	167
-20	203
-10	240
0	283
10	335
20	387
32	460
40	520
50	590
60	675
70	760
80	865
97	1069

Part Number	Description	Racer Price
1-0414	MPS Purge Kit w/ Teflon Seals	$139
3-16030nos	NOS Purge Kit	$177.26
3-16033nos	NOS Ntimidator LED Purge Kit	$223.18
3-16039nos	NOS Blue LED Upgrade	$48.66

All parts sold by MPS are for off road closed course use. They are not intended for use on public streets or highways.

Motorcycle Performance Specialties
5350 McIntosh Point #132 - Sanford, Florida - 32773
Phone: (407)330-9727 - Fax: (407) 322-8632
Sales E-Mail: sales@mpsracing.com