USRT Direct Port System

  • Model: WAIDPX
  • Manufactured by: US Rally Team

Starting at: $299.00

Please Choose:


Nozzle size

Air cooling:

PLUS1/2 bung type

Main Line Diameter

Add to Cart:

Perfect your octane delivery and put racing gasoline costs behind you. Mist distribution is guaranteed so that no cylinder is overloaded or underserved. Tuning is simplified and fluid consumption is reduced.

The USRT Direct Port System is natively set up with six main ports but can be easily expanded or limited via additional fittings and plugs. The far end is sealed by a -8AN ORB plug. The feed end is set up with a solenoid and choice of straight or USRT CHECK TEE fitting (featured in "PLUS1/2" upgrades).

USRT direct port block
"PLUS1" T-fitting shown attached to flow control solenoid

The most popular configurations are the "4PLUS1", "5PLUS1", or "6PLUS1" configurations with one nozzle per cylinder plus another placed after the intercooler for air temperature reduction. The (optional) screw-in tee-fitting makes this easy to accomplish. Those with big turbos could use 1x very large air-cooling nozzle after the IC. However, testing shows that a 225cc nozzle is as big as should be used with usual our intake pipe diameters. Spraying from a post-turbo position (only under heavy boost) is far superior. Choose "4/5/6PLUS2" for that. Add a USRT "Boost Trigga" (or any other boost switch) to trigger the solenoid idependently from the pump. (Those with USRT Stage11 kits won't need an extra trigger.)

Advanced builders have even more options: Spray into the compressor to increase peak air flow, for example. Use your imagination. Or, just ask us for consultation. We'll help you accomplish your goals.

usrt direct port water meth post turbo

Extra outlet for post-turbo air cooling mounted at far end

Nozzles are exclusive and proprietary to USRT with the industry's smallest orifice size at a mere 125 microns (.125mm). The high-pressure hose works directly with the same quick-disconnect fittings type used elsewhere in all kits. Combine with the tunable AEM FAILSAFE Device to maximize benefits. Spike your brew with nitromethane for instant and safe power gains while you're at it! Nozzles flow 30 or 45cc at 60psi. These are the smallest and best atomizing nozzles available on the market.

Base Kit Includes:
1x direct port block
4x nozzles
4x nozzle holders
1x modular 40-micron filter
1x solenoid
1x straight feed fitting
4x (feet) black High-Pressure Line

IE intake manifold set up for USRT direct port

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