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Old Jan 2, 2010 | 07:26 PM
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grounding kit

ok i have read a couple threads on grounding kits. i understand what they do any how they work.

but my question is. what is the difference between me buying some 4 gauge wire and making my own than buying a premade one that is made out of 8 guage (seems like the popular size that alll the kits are made from)

can anyone telll me or show me in pictures where all the mounting points are?
 
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Old Jan 2, 2010 | 07:48 PM
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Nothing. Its best to just make your own really. I have one on throttle body bolt, transmission bolt, and ECU ( I just fed the wire through the harness boot into the firewall). I got them all together and connected to the r/f srut tower brace.
 
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Old Jan 2, 2010 | 07:54 PM
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Grounding kits are a waste of money and do nothing for your car unless your electrical system wiring is all screwed up in the first place (i.e. old car with corroded wiring, etc...)

All claims by various companies making these things are purely anecdotal. I have yet to see a rigorous independent dyno test that proves anything about these systems.

Keep your money in your pocket and save it for something useful.
 
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Old Jan 2, 2010 | 07:57 PM
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a dyno is not going to show anything for this mod. it does not add power.
it simply lessens the shift lag on automatics and increases the throttle response
 
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Old Jan 2, 2010 | 08:40 PM
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Originally Posted by kennymo
a dyno is not going to show anything for this mod. it does not add power.
it simply lessens the shift lag on automatics and increases the throttle response
Yes, thats what all the manufacturers say - Thats for sure!

And, as they say . . . "A fool and his money are easily parted!"
 
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Old Jan 3, 2010 | 06:43 AM
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@Liche. + 1. Those things are a waste of time. @kennymo, If you think that you noticed a difference in the way your car performs from a grounding kit you need to have your a$$ dyno calibrated. OP, Liche has given you the best advice in reference to the grounding kit. If you want to waste some money I can build you one using some speaker wire and you can pay me. It would be just as good as any other kit on the market!
Save your money bro, go buy a K&N filter from pep boys or something!
 
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Old Jan 3, 2010 | 09:56 AM
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^^ Lols. Good advice!
 
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Old Jan 3, 2010 | 10:51 AM
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In my first career as an electrical engineer (no longer do this) we were easily able to measure electromagnetic output decreases following proper or increased grounding. From my professional experience, the grounding kit may only have the effect of reducing static electricity or electromagnetic waves that interfere with the sound system quality (note, this is isolated to the sound system alone-- nothing else). The other improvements attributed to the kit are 99% likely the placebo effect. The empirical science behind the purported other improvements (better shifting, increased power, more stability in electrical system, etc.) is missing, all we have are opinions so far. There have been several other threads devoted to this subject with the result being confusion as to whether the kit has any real value. It's essentially a useless mod.


I think the grounding kit may be the G's version of the Tornado fuel saver gas devices (and the hemi head on some engines) which millions bought... millions swore by... thousands of mechanics smilingly installed (b/c they too believed the marketing) because it made sense.... and in the end (just like saggy pants on guys) after it was shown to be a useless add-on, millions continue to purchase?


The problem is that the research behind this device is shakey and internally done by the company marketing it... sort of like some drug companies that only submit positive data to the FDA for approval of a new drug. Read on in the website you found where they may also state: "Money back guarantee - If you are dissatisfied with you new grounding kit for any reason, prior to install, return it for a prompt refund! No questions asked." Essentially, you can't return it if it doesn't work since you've installed it!!! This phrase alone suggests we can't hold them to the products actual performance.

Caveat emptor-- let the buyer beware!
 

Last edited by Braintree; Jan 3, 2010 at 10:57 AM.
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Old Jan 3, 2010 | 12:07 PM
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^ well said sir!
 
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Old Jan 3, 2010 | 12:23 PM
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From my professional experience, the grounding kit may only have the effect of reducing static electricity or electromagnetic waves that interfere with the sound system quality (note, this is isolated to the sound system alone-- nothing else).
Actually, static electricity has little to do with it. But you could, in theory, reduce the radiated emissions of spark induced noise by providing the engine with a better grounding.

But as you said, for a sound system there are benefits - but only for sound systems which are very high power.

Remember that the power in the amplifier not only flows in the positive 12V cable from battery to the amplifier but also back through the chassis and back to the battery. Typically, the stock battery to chassis connection is not that great when talking about very high power amplifier systems. Therefore, its recommended to "beef" up those grounding connections from battery to chassis to get a lower impedance connection, and therefore, lower voltage drop across the wire which ultimately allows more power to be delivered to the amplifier.

However, the ideal approach would be to run a separate 12V and GND cable from battery back to the amplifiers for those very high power set-ups - or simply have the battery banks in the trunk which is pretty typical of high power systems.

Also, whats really funny with these grounding kits is the fact people are using such THICK wire or think that a change from 8AWG to 4AWG is really going to make a difference. Unless your conducting 100's of amps through these connections, the wire gauge will make NO DIFFERENCE whatsoever.
 

Last edited by liche; Jan 3, 2010 at 12:33 PM.
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Old Jan 3, 2010 | 02:19 PM
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kennymo

Sorry for venturing a bit far from your initial question, and irrespective of the what Liche and I are saying, the answer is basically a NO--- the grounding kit will gain you little to nothing. Can I ask what you're trying to accomplish?

Thanks
 
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Old Jan 3, 2010 | 03:31 PM
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So, for all you guy with nothing good to say about grounding kits....which of you have had one installed on your G?

There are HUNDREDS of reviews of my kit and the response is 100% positive...can you convince all of these people that they are wrong about their experience?

Link:
https://g35driver.com/forums/reviews...es-review.html
 
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Old Jan 3, 2010 | 03:44 PM
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Originally Posted by SxExCx
So, for all you guy with nothing good to say about grounding kits....which of you have had one installed on your G?

There are HUNDREDS of reviews of my kit and the response is 100% positive...can you convince all of these people that they are wrong about their experience?

Link:
https://g35driver.com/forums/reviews...es-review.html
Then thats great. Go spend your money and buy the kit then. Its obvious we aren't going to sway your opinion, and in that case, why you even bothered to ask anyways.

And, not sure where you are getting HUNDREDs of reviews, or the fact that all of them are 100% positive, but that link you posted certaintly doesn't have more than 10 reviews, let alone HUNDREDs, and they are not all positive comments either.

And you should probably read a bit more in depth before making your decision. Because if you think that particular thread had HUNDREDS of 100% POSITIVE reviews, then you are likely misinterpreting other information you may have read about grounding kits.
 
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Old Jan 3, 2010 | 04:23 PM
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I am the MAKER of the kits...check my itrader feedback on here, my350z, and myg37.
 
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Old Jan 3, 2010 | 04:32 PM
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Originally Posted by SxExCx
So, for all you guy with nothing good to say about grounding kits....which of you have had one installed on your G?
There are HUNDREDS of reviews of my kit and the response is 100% positive...can you convince all of these people that they are wrong about their experience? Link:
https://g35driver.com/forums/reviews...es-review.html
I read approx 50 comments in the start of the thread and noted many comments about how "cool" the color was and how nice the wires looked. I also noted that there were some comments stating that there was an improvement noted. I didn't read thru the entire thread so it may be mentioned elsewhere (and I apologize if I missed this), but my first thought was that of the pages I read, none indicated, via a dyno test or empirical evidence, that the kit performed as purported. This led me to assume that we may have been seeing the placebo effect. Is this possible?

I recall the Tornado also having a huge fan following with many professional racers touting it's ability to save fuel.

SxExCx, can you provide us with evidence of the efficacy of your product... preferably an independent review from a reliable source to avoid questions of conflict of interest? This would likely put the debate to rest for some.
 

Last edited by Infiniti Chica; Jan 3, 2010 at 04:41 PM.
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