Concept of Earth Grounding System
On a normal system, electric current flows from a positive terminal to a negative terminal through the car body. But there are much resistance at connectors of body, engine and transmission. The resistance disturbs this flow of electricity to a degree that electrical components such as computer, lamp and spark plugs cannot perform at their peaks. In order to get the highest performance out of any automobile, it is necessary to achieve a maximum electricity flow with the least resistance along its electrical circuit. 
In short, a grounding system does to your electrical circuit like a high performance intake & exhaust system does for the gas. We believe such system is the basic of all tune-up if you want to unleash the maximum performance of your car.
| |
Voltage (V) |
Current (A) |
Resistance (Ohms) |
| Battery |
Measurable
Quantity |
Measurable
Quantity |
Whole |
Electrical
Equipment |
Body |
Body Amount
Ratio |
| No Ground |
14.2 |
13.1 |
9.4 |
1.51 |
1.39 |
0.12 |
7.7% |
| Ground |
14.2 |
14.2 |
10.2 |
1.39 |
1.30 |
0.00 |
- |
While making sure that the operational circumstance is the same, the above table indicates a 7.7% of total resistance which originates from the car body & the same 7.7% of battery voltage which is being wasted due to the absence of a grounding system.
What does the Earth Grounding System do?
EGS can achieve an extreme improvement on electricity flow and stability by providing a direct ground path from the body, chassis and engine components to the battery negative.
What's its history?
This theory has been known & such system has been used among Japanese WRC (World Rally Championship) racing teams for years. Since 2000, it has become the hottest modification performed by car enthusiasts in Japan. Its effect on automobile has been proven by dyno tests again and again. 1st image: an increase of torque from 3500 rev. 35kg to 4800 rev. 40.9kg (see upper line). 2nd image: an increase of horsepower from 280ps to 305.9ps (see upper line).
What benefits does it provide?
- Faster engine start-up :
You can feel the difference even with A/C on and at maximum fan speed. This system reduces the loss of electricity to nearly zero at ignition coil and produces better ignition spark. This oscillograph indicates how voltage resistance drops at start-up with the EGS installed (right pic.).
- More stable idling :
You will hear your car engine noise quieter than before. This oscillograph shows the minimized resistance resulting from the installation of the EGS. Note the smaller waves & lower trace in the right pic.
- Smoother and faster throttle response
The upper green lines in both charts below has the Earth Grounding System installed. They indicate a higher torque & horsepower gain. Car used for this dyno test was a Lancer Evolution VI. A max. horsepower gain of 5hp and up has been achieved on a Honda Integra TypeR. This is all to do with how the engine sensors read their data and send it back to the ECU. If they're getting crappy, noisy voltage, then the readings being sent back to the ECU could be all over the place, meaning it could have trouble generating good throttle position information from the gneine map. If the sensors are allowed to do their work properly, the ECU is able to do a better job of mapping it all out, and the result could be better throttle response.
- Increase low & middle engine torque
It helps to achieve a close-to-perfect combustion at low or high revolution of engine, resulting in faster acceleration. A max. torque gain of 0.5kg-m and up has been achieved on a Subaru Legacy BH5. Better voltage response in the low tension circuit results in better response in the high tension circuit. This could result in a more powerful spark which gives a better burn in the combustion chamber.
Top image: Red line = no ground / green line = with gound / blue line = with ground + muffler silencer removed. Bottom image: This is done on a Honda Integra Type R. Actual effectiveness varies by vehicle and personal drivability.
-
 Better milage
In particular city driving. So this system does not just save you money on gas, but very ecological, too. One test even shows an MPG increase of up to 22% on a 1800c.c. test car. Reason being that technically, the alternator is in the 12V electrical system, and load on the alternator can affect fuel efficiency by adding mechanical drag to the engine. The more load on the electrical system, the more drag in the alternator. The difference in fuel efficiency between a shoddy 12V system & a decent one can be measured by Scan-Tool devices.
- Better CPU operation :
- Cleaner exhaust gas :
Lower density of HC and CO.
- Brighter headlight output :
Improvement that you can see. Thanks to a better alternator performance. This is particularly obvious for cars that have headlights that get brighter the more you rev the engine, HGS stabilizes the voltage & give a more consistent light output.
- Improve car audio sound quality :
Improvement that you can hear. Thanks to an overall enhanced equipment performance including but not limited to: Car audio, power windows, power sunroof, etc.
How good is Hyper Ground System?
Sun's Hyper Ground System enables ultimate maximum flow of electricity by using the best wire & connectors that are available. These vital components must have durability against high voltage use while providing minimal resistance. They have 10 times less impedance than factory ground systems resulting in immaculate conduction to prevent electrical power loss. This system uses thick gauge, 99.99% pure copper with 1477 strands per cable, multiple-layered shielding, optional gold-plated terminals (on gold, silver and sp. blue models), and connects directly from the cylinder head and other points under the hood to the battery to provide an ultra low resistance connection. They come in an array of colors to accent your engine bay, so you get both performance and looks. Sun Auto designed Hyper Ground for OEM use, so you can be assured that they are the absolute best in quality and durability. Fabricated in Japan.
Sun Auto is the only company authorized to distribute Hyper Ground as OEM equipment. Our customers include Mitsubishi, Nissan, Subaru, Toyota, and Suzuki. We also supply the Japanese Self-Defense Force and other government agencies.
Professional drivers prefer Sun Auto's products. Tarzan Yamada used our products to help him beat the time attack record at Tskuba Circuit (EVO VII) as well as to take victory for JGTC round 4 in Malaysia (Dodge Viper). D1 drivers such as Ueo (AE86), Ueno (JZZ30), Takahashi (JZX100), Utumi (S15/FD3S), Kawabata (AE86), etc. use our products whether we sponsor them or not, because they know Sun Auto's products are the best of their kind.
Bang for the buck, Hyper Ground and Hyper Voltage offer some of the best values for cost vs. performance. Typical hp gains for Hyper Ground are 3-6hp, some cars tested gain as much as 15+ hp. Using Hyper Ground+Hyper Voltage can increase performance even more. Both kits start at a little over $100 each, which is an incredible value.
Sun Automobile's HOT EARTH is the JDM car-specific version of HYPER GROUND SYSTEM. While the cables are made of the same, high-quality thick-gauge, 99.99% pure copper with 1477 strands per cable, 4-layered shielding, and gold-plated terminals, HOT EARTH kits are made specifically for certain vehicles with pre-determined mounting locations and cables cut to specific lengths. This ensures the best performance and the absolute cleanest install. US model lineup is shown in the pull-down menu below. Color "sp. BLUE" is a specialized blue color; unlike the universal type blue color, sp. blue is a 4-layered construction with gold-plated terminals (similar to silver and gold colors). The sp.BLUE is a little bit darker in color than the regular blus as well. sp. BLUE is only currently available for the BMW, Mini, and Volvo Hot Earth / Hot Inazma models.
The H.G.S. Cyber Speed Version is custom-tailored for the best fit and best performance in your vehicle. Giving your car a more efficient ground will help to pull out its full performance potential. The cables used are unlike anything else available: thick-gauge, 99.99% pure copper with 1477 strands per cable, 4-layered shielding, and gold-plated terminals. Designed to exceed stringent OEM specs for heat resistance and durability, these cables are the absolute best available. Cyber Speed Version kits have pre-determined mounting points to ensure the best performance and the cleanest installation. Contents include 6 wires with exact lengths & pre-determined mounting points. Read about Cyber Speed HVS first before purchasing this.
Applications : Subaru Impreza WRX/STi (GDA/GDF: '03+) / Nissan 350Z ('02+) / Mitsubishi Lancer Evolution ('03+)
About CyberSpeed: Cyber Speed components are created through development of technology used for competition with the record breaking Cyber Evo. Now, the benefits of our experience with racing technology are available for your vehicle, so you too can feel the competitive spirit of CYBER SPEED.
 Exhaust Grounding System
Sun Auto now offers specialized earthing straps to properly ground your exhaust system to the chasis. Based on research & development of the HGS, the new Exhaust Earth is designed to maximize exhaust efficiency by minimizing static electricity that obstructs exhaust flow inside the muffler. Benefits include: Increased torque response / reduced static electricity in exhaust / reduce vibration noise from exhaust / improve corrosion resistant of muffler. Use w/ HGS for cumulative performance enhancement!
Installation: Each kit comes with 2 ground straps; one is connected from the exhaust where the muffler bolts on the midpipe to the chassis, and the other is connected from the exhaust where the midpipe bolts on the cat. converter to the chassis. If possible, best results will be had if any paint/debris is scraped where the terminals connect for a solid metal-to-metal contact.
A.k.a. Spark Plug Cover and Valve Cover. Introducing an all new ignition strengthening product born from the HGS. It eliminates negative ions circulating throughtout the ignition coils and cylinder head therefore providing the lowest possible resistance enabling the ignition system to reach max. potential. Also, when installing in conjunction with Hyper Force System, you can expect an even better result. Click on APPLICATION GUIDE (in .pdf format) to see if it fits your vehicle.
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