pdarby

iTrader: (1)

I would like to get an intelligent answer to this question. EXACTLY what does a "Betty grounding wire kit" do for your car? What is the problem with the factory grounding kit? I'm just curious, everyone seems to make a big deal about it.

PD

RedG37SNC

The theory:
Installing a grounding kit is a safe and reliable way of creating a low resistance ground path for your car. The kit provides direct ground paths from battery negative to body, chassis, and specific engine components to give a noticeable improvement in electrical circulation. Reduced electrical “noise” can improve ECU signals and throttle response resulting in better performance and reduction in flat spots, better audio amp grounding and many other benefits associated with improved grounding.

To date I'm not aware of any scientific testing to prove this theory by measuring improved response times. Science definitely wouldn't disprove it "could" have an impact however.

Many would agree the chance for a minimal improvement and piece of mind worth the cost, especially when you consider how important electronics are with the fundamental operations of our cars today.

KnoxvilleG37

.....waits for Black Betty to answer the man's question.....

Black Betty

iTrader: (60)

As I have a brief explanation of what they do in my vendor thread, and I'm pretty active and answer PMs promptly, I presume that the OP wanted a non biased and objective explanation from someone besides me who's not selling them. That's what I'd want.

No to mention that Red's explanation was dead on and definitely better than I could have expressed it. I will likeley be "borrowing" his words. Great job Red.

shumby

iTrader: (3)

you want betty to answer or me an electronic technologist?

shumby

iTrader: (3)

Red charge betty for using your work put a M after your post. lol

RedG37SNC

Have an A.A.S in Electronics Tech myself, although unused for years..lol

Take a look at the little stock grounding wire what is it a 12 guage or so...

Any wire will have inductance and therefore, inductive reactance. The longer the wire, the higher the inductive reactance and the higher the opposition is to the flow of current. The fatter or larger the wire, the lower the opposition to the flow of current.

shumby

iTrader: (3)

I use mine all the time I work with it on drilling equipment and 80% of the issues we get are poor or faulty grounding

KnoxvilleG37

agreed....Red gave a perfect explanation.....I just felt like being a smart a$$ since Black Betty sells kits

SkyMG37x

I have a related question. The G has a "Variable Voltage Control System" which according the owner's manual measures the battery drain during normal operation and adjusts the generator's voltage output.

There's a warning in the manual not to ground any accessories directly to the battery terminal as this will bypass the VVCS and the battery may not charge properly.

If you look at the charging system diagram the battery ground is connected to a current sensor monitored by the ECM which ultimately controls the generator via the IPDM E/R.

Wouldn't these grounding kits effectively bypass the VVCS by providing a direct path to ground?

shumby

iTrader: (3)

There have been a few issues with the g35 with this causing an issue. I have an alternate grounding point that will eliviate this issue, even though that I have not heard of any problems on the 37 yet. I will post a pic of my install when i get my kit. damn shipping is slow to canada almost 20 days now.

Mysticalism

iTrader: (1)

does it help with the AT changing gear delays? :P

Dieseldoug22

iTrader: (27)

The Tranny is one of the easliest felt benefits of the grounding kit. It will definitely help the shifting. As for the radio and other systems I couldn't tell one difference, personally. But you do feel the tranny.

RedG37SNC

The primary delay is rev matching which is by design however there's probably milliseconds of improvement noticed by some in the execution of the controls that results in a noticeable improvement.

RedG37SNC

The grounding kits work to improve grounding of chassis ground to negative. The stock design already includes a wire from the negative terminal to chassis, these are just bigger wires with less inductive reactance along with direct connections versus going through already connected parts of the car.