Could someone help me out and explain it to me, I saw one Z in person with a set, thought it was BS then come to this website and found like 80% hvae them or getting them. Just want to know what they all about and how I can get a hold of a set, preferrebly blue since apparently you can get them in different colors. would appreciate any info thanx

 

the question you have just asked is very similair to whether god exists.

I really dont know what it does, if anything. I tried to figure it out, but all I got is that its supposed to smooth out the engine, make it idle smoother, as well as help the top end feel.

it will not, and does not add hp, the scientific reasoning is that alternator and sparkplugs create noise in the electronic system, and the 350Z ECU requires a clean input of whats happening in the engine to tell it what to do, the noise makes that input mucky and makes it difficult for the ECU to compute properly. thus by grounding the engine block you reduce that noise and subsequently clean up the input to the ECU.

it does this by 5 or 6 wires I think it was, bolted to various points on the block, one on the frame, and one on the negative of the battery, there is no live power in the circuit. the batter and engine are already grounded to the frame for this very reason, however where they used 16 or 18gauge wire, we are using 4. typically monster cable that can be bought at hi fi buys or the like.

you can make it yourself, many have including myself, its not real hard at all, you just need a strong pair of wire cutters(4ga is thick) and most importantly you need to get connectors onto the ends, either by soldering with a blowtorch, or a large crimper. if you do not already own these tools, then it is not cost effective to buy them, your better off going to insaname(hope I got that near right) or skiddazle. they both offer kits as well as instructions with them. there are also a variety of companies that make the kits(including nissan), but they go for way more than the home made ones, and there is no quality benefit from what I saw.

 

Have you noticed smoother idling and running?

 

The Z is totally computer controlled.....This would mean that a good ground is essential for proper ECU operation.....the ground system on the Z is adequate, but could it be better?.....yes......i believe Nissan sells a grounding kit for the Z, and that is what started me thinking about this subject.....the current ground system is probably susceptible to a certain degree of electrical "noise", which could degrade the computer signals.....if the electrons had alternate, or multiple paths to travel, then perhaps the signal wouldn't suffer from distortion as much....and WTF, it couldn't hurt.......i'm gonna be ordering my kit pretty soon....check out the engine section to find where to get a set

 

ummm sure, might be the placebo effect tho.

at the beginning someone hooked the car up to an OBDII computer and got a reading on maximum and minimum RPMs at idle with and without, without it was like 75RPMs, with it was around 30-40 I believe. I guess thats better right?

I mainly did it as something to do, that I could do on my own, I didnt really do it for whatever elusive benifits it might give.

 

The grounding kit may actually reduce the difference in RPMs at idle, but that reduction could have to do with something else. As I always say, you can't infer a causal relationship between to correlates. I might buy some wires and set up something myself, but I doubt it really does much. A loosening engine through time and mileage may smoothen out on its own and it may even gain some gas mileage, too. I don't know. For cheap, it can't hurt, but I wouldn't go spending the money on the expensive kits.

 

Think of it in terms of Pipes... The stock pipes are the size of a garden hose. They work well but you dont get alot of though put. Think of the 4 guage kits as a fire hose. Alot more thought put. What this means is that the energy can travel faster and discharge faster than in the 16 gauge (Garden Hose) kits.

 

well, I don't you guys heard of "Hyper Ground" but this is what they are. they providess direct ground path from battery negative to body chassis, and engine components to give extreme improvement on electrical circulation. They have 10 times less impedance than factory ground system. It gives more torque, better mileage, better response, and better starting ability.

This system "Hyper Ground" is test by numerous magzine, such as Import Tuner, turbo,....etc. In import tuner they put it on a WRX and got around 17 ib torque increase. All the Japanese race car has it now. So it's dyno proven.

www.rg-s.com sale them, maybe you guys should contact them

 

This is all true, however there's not very many (if any) electrons that need to travel on a circuit that connects one ground point to another; there should be no difference in electrical potential. Connect a milliamp meter between two grounding points and see how many milliamps are flowing.

WayneTN

 

If such a low-cost system indeed added "17 ft.lbs. of torque" or provided "better mileage, better response, and better starting ability", don't you really think they would already come on cars? Think about it.

WayneTN

 

LOL....true indeed......be that as it may.......if you take 5 feet of wire, and 1 foot of wire, the 1 foot section will have less resistance than the 5 foot section.......similarly, 1 foot of chassis will have less resistance than 5 feet of chassis.....and electrons will always find the easiest path on their own.....HP gain?.....i doubt it.....but logic circuits love a good ground, i've seen signals through logic gates improve with improved grounds.....granted, the hyper ground will provide as much horsepower as super-low-air-resistance car wax, but what the hell, why not

 

WayneTN, right now Mitsubishi offer the "hyper ground system" as an options. And many subaru dealers carry those too. It's like we all know NISMO kit will improve aero dynamic of cars, but it doesn't come stock. It's a plus thing, but not necessitiy.

 

I appreciate everyone's response to my question, now I don't feel so out of the loop when I hear everyone talking about these kits. Now I just got to get my hands on a set with out busting my wallet. The materials and crimping tools are easy to come by from where I work, but can anyone help with the lengths, how many separate wires, and grounding points? Once again thanx for the response guys been a big help.

 

Insaneanime has them for sell for around $75...Pretty good quality and everyone seems very pleased with them.

 

there were many writeups, try a search, I cant remember the lengths off the top of my head. VQ did the first write up, but I wouldnt use that one, his wire lengths were a bit too long IMO, later others refined the lengths.