Direct-Port Nitrous for EFI

NXL Technology

For an even easier installation, NX offers replacement fuel rails for some applications that come with the nitrous and fuel solenoids already integrated into new billet rails.

For an even easier installation, NX offers replacement fuel rails for some applications th

The Nitrous Express billet aluminum NXL nozzles may be intended for the average weekend enthusiast who's looking for some extra grunt, but don't let their simplicity mislead you. The direct-port system can pack an additional 400 shot of tire-shredding powder should the need or temptation ever arise. Granted, most of our average street motors wouldn't survive very long under those extreme conditions, but it shows that this system was designed with power in mind and is suitable for hard-core race applications.

We were told the NXL system can also be configured into a two-stage setup by stacking two sets of nozzles together. This requires additional lines, solenoids, and a taller cowl hood for clearance. So, if you think a 400 hit isn't enough, Nitrous Express has already got you covered.

How well did she do?

To add the finishing touches, we swapped out the Autolite 25 spark plugs with a set of 23s (two heat ranges colder) and gapped them at 0.035 inch since we planned on spraying the little 306ci with a healthy 150-shot of nitrous. If you plan on sticking with the lower nitrous setting, your stock plugs will be fine. Also be aware that heavy nitrous hits have the potential to "blow out" the spark, so it's crucial to use quality performance wires like these JBA Headers 9mm power cables and an aftermarket ignition box. The finished product looks intimidating, but if a local grudge-night yahoo asks you about it, just tell him it's part of the emissions equipment

By Henry De Los Santos

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