Sky Cng
CNG

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SkyPRO-HD CNG Conversion Kit: High Load Engines Up to 8.0 liters

Other CNG conversion regulators have a rubber diaphragm inside. It stretches over time requiring costly and annoying adjustments and replacement after only 20k miles. Our HD regulator is maintenance free!

8 Cylinder SkyPRO-HD Sequential CNG Kit- $1499
10 Cylinder SkyPRO-HD Sequential CNG Kit- $1899
Laptop Cable (one time purchase)-$25 FREE SOFTWARE!
Need SwageLok Valves, Tubing, or other Specialty Parts? We have accessories to make life easier!

The Complete "SkyPRO-HD" CNG Sequential System from SkyCNG is made of the highest quality parts for the US market... not mixed and matched with low-grade components just to save a few bucks like the competition:

  • Multistage Heavy Duty Regulator (Pressure Reducer)
  • Hana CNG Injector Rails
  • Solenoid Valve on Reducer
  • ECU Computer with TECH Algorithm
  • Injector Cutoff Wiring Harness "Plug n' Play" ($12 each cylinder)
  • Low Pressure CNG Filters
  • Tank Pressure Sensor (Manometer) Screws into Regulator
  • OBDII Wiring Harness for ECU
  • MAP/CNG Temp Sensor
  • Dashboard Control Switch/Fuel Gauge
  • CLASS 2 RATED hoses and worm drive clamps for superior performance and durability.
  • Blue Diamond Reflective CNG Bumper Sticker
Major Components of the SkyPRO-HD Sequential Injection System by SkyCNG

The SkyPRO-HD CNG pressure regulator (aka "reducer") takes the high pressure CNG from the cylinder tank and then reduces it to a low pressure natural gas that the car engine can handle. This is a critical and expensive component of the CNG conversion kit. As mentioned above, our HD reducer can achieve twice as much CNG output as the competition like Landi Renzo, Tomasseto, and others. The HD regulator is made of the highest quality for hauling and aggressive driving. It can reliably handle large engines with over 400 HP before requiring a switch to gasoline at high RPM. Nobody else offers this! The SkyPRO-HD kit eliminates costly and time consuming "dual regulator" setups, as well as even better performance and gas mileage.


The ECU is the computer of the CNG kit. It is constantly communicating with your vehicle's computer, or OBD system. SkyCNG's system developed with LPGtech is state-of-the-art and sealed from weather and the environmental elements.


Our Hana injector rails are what actually sprays the CNG in specifically metered injections into your engine. The Hana "piston" assembly is a little different than our Tartarini "solenoid" type injector. It's quieter, has a faster flow rate for large engines (115 L/min) and offers a faster opening and closing time (1.2ms). The high grade coated metal rails ensure long lifetime.


The high pressure solenoid switch is an electronically controlled switch to cut on and off the flow of CNG and is part of the reducer, for faster installation. The manometer is attached to the reducer.


The weather proof wiring harness is what connects the ECU to the fuel injection system. The wires must be connected properly, and in most cases there will be several wires to cut and solder into place.


Other SkyPRO Kit Components:

Technical Calibration Kit contains the USB laptop interface and a special USB key /jumpdrive needed to access the calibration software. You can use these multiple times and with different vehicles, so you only need one per fleet.
We are the exclusive North American distributor of premium LPGtech CNG conversion systems. These high-quality "bi-fuel" systems allow your current vehicle to operate on EITHER gasoline OR CNG fuel. You will have a switch on your dashboard that allows you to choose which type of fuel on the fly! No restarting. No engine stall outs. These CNG car conversion kits are very common in almost every other part of the world. As the United States becomes more accomodating of cheap, clean natural gas we will see CNG conversion kits go mainstream. The SkyCNG conversion systems are state-of-the-art and manufactured specifically for American CNG standards.

Looking for the lowest prices? You won't find it here. SkyCNG provides the high quality systems for long term reliability. Beware the bottom feeders. When our system is properly installed, the driver shouldn't tell a difference in performance, nor should they have a check engine light, for years to come! We have an article that explains the signs of a lesser quality CNG car conversion kit.

SkyCNG recommends you study up on your local laws before any type of car engine modification is made. We also suggest you be an experienced mechanic to install these CNG conversion kits. While these kits should contain everything you need, we cannot guarantee your vehicle type won't need special tools or need a couple extra parts. Since we don't install them, we also don't guarantee you'll do things correctly.

BEWARE OF HIDDEN COSTS: Please compare our CNG conversion kit components with the competition. You will see that our system is much more thorough and complete and our price really does include EVERYTHING.

CNG Cylinder Tanks are not included in the kit. We can help you source them so call or email SkyCNG.
Learn more about the CNG cylinders here.