Direct Port (Base) System

Dial in your octane delivery and get the fueling you need. Mist distribution will be 100% even with each cylinder receiving the expected amount of help and protection. Tuning is simplified and made more intuitive. With supplied compression fittings, all connection points are made leak proof and will be completed in minutes vs. hours.

By far, the most popular configurations are "4PLUS1", "5PLUS1", or "6PLUS1" configurations. An IAT-dropping nozzle is positioned after the IC (at remote distance to throttle). It works across the entire boost range (from low boost to peak). It will deliver approximately 2/3 of total spray volume. Then, of course, there is the direct port section set up with one nozzle per cylinder. This section is staged to fire only in the upper boost range and it will generally flow about 1/3 of the injected quantity. 

Sometimes, however, an IC heat soaks under heavy sustained boost. In such case, spraying from a post-turbo "volute" position is a smart upgrade. That's often how a "4/5/6PLUS2" is configured. Under big load, the fluid flash evaporates and will never pool inside the intercooler. IC heatsoak is minimized and IATs remain flat.

ASK FOR A FREE CONSULTATION: We'll design your entire system and make sure you accomplish your goals while staying within budget.

"4PLUS1" T-fitting shown attached to flow control solenoid. Fluid enters one side and exits the other to go to the post-IC air cooling nozzle. A check valve is supplied to defeat gravity siphoning from that point.

Standard single-feed fitting demonstrated in "DP4" setup. Fluid only reaches the nozzles after the solenoid is commanded open.

Base Kit Includes:
1x direct port block with 3/16" (4.75mm) compression fittings
4x nozzle holders with 3/16" (4.75mm) compression fittings
1x 1/4" (6.35mm) feed compression fitting
4x nozzles
4x (feet) 3/16" (4.75mm) high pressure line
1x solenoid

Add a USRT "Boost Trigga" (or any other boost switch) to actuate the solenoid idependently from the pump. (Those with advanced controllers like Cortex, FrostByte, or standalone ECU should use an unused GPO for this critical function.) Or, better yet, step it up with our class-leading technology RACE valves.

Note: Nozzles feature the industry's smallest orifice sizes. Atomization is thus superb. With 3/16" Teflon tubing in place, control linearity is superior to systems that utilize 1/4" Nylon or hard metal lines. Vacuum siphoning is greatly reduced, too (without adding expensive check valves per nozzle holder).