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Earthing Kits; opinions please
Topic Started: Sep 10 2004, 06:43 PM (1,503 Views)
Roger_Ramjet
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Hi Guys
i heard about earthing kits for IS200 going for $199
have any of you had this installed and what was the result of it?

i have been told it actually has a significant improvement on torque in 3rd, 4thand 5th gears, and a marginal gain in Kw...

worth it or not??

Thanks :)
IS200 Sports Luxury 6MT - Granite
For Sale: Trust intake kit + Calliper stickers
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Serran
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forget the prices.. but this is the install by marty at fhrx... this is the 2jz is300 which had the earthing kit installed about a month ago..

call marty direct if you want the low down on what the kit really does.. too many myths about installing these kits..
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Roger_Ramjet
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yeah i emailed marty and asked if he has done this for any Lexus.
i know that he is offering discounts to rexnet members.

they all seem to claim it is well worth it... it seems weird that just earthing a car seems to make such a huge difference on performance and comform...
he does use so FAT cables though which look really nice....


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IS200 Sports Luxury 6MT - Granite
For Sale: Trust intake kit + Calliper stickers
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frylai
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Earthing kits are only good for Autos, it's mainly makes the car "feel better" instead of actually giving more power.

Matt =)
06 IS250 Prestige (Black/Grey) with Moonroof
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4ROLLN
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I've got a Apexi one, generally they do just make the car feel a bit better and may help the power and engine perfom a bit harder but I'd say it would be hard to notice it. I thought it made a difference but couldnt back that up with any evidence!


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Altezza Girl
"the First Lady"
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"Feel better" in what sense? Smoother, more powerful?

Just interested because I have blue wires from my battery that go all around the engine and stuff, so was wondering if this is an Earthing Kit like what you guys are talking about?
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4ROLLN
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yeah I'd say it is an earthing kit!

all its sposed to do is remove the electrical energy that passes through the engine that therotically causes the engine to not run as well/smooth or efficently as it could but ya not gonna feel much of a difference really, im not sure if its been proven on any tuning equipment, but removing the electrial energy is a good thing to do, but not necessary!
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4ROLLN
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---------------here's something I found-------
Quote:
 

350Z Engine Grounding/Earthing Kit:

Automotive electrical and computer systems are designed to tolerate up to 100% noise on its input lines. Meaning, if the ECU is expecting a 12-volt input signal, the signal may vary in the range of 0 to 12 volts. Fluctuations in signal are due to noise in the system. Noise is generated by spark plugs firing, discharges through the tires to the road, alternator turning on/off, etc. In other words, there is a lot of inherent noise an automotive electrical system.

One of the best-proven ways to compensate for noise is with proper grounding.

When measuring a DC (direct current) signal, almost any kind of wire will due. However, when measuring a high frequency input (i.e. the mass air flow sensor or the air/fuel mixture sensor) it is necessary to run a ground wire in parallel with your signal. The engine grounding/earthing kit provides grounding along side each signal wire.

The 350Z Engine Grounding/Earthing Kit allows for cleaner data transfer to the ECU. The result is more accurate measurements by the ECU and therefore more accurate performance, smoother idle and acceleration.

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bmalar
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Interesting stuff.. Might be worth it for $200 or whatever.. Anything to make the auto feel a little better ;)
Brisbane

2008 ISF
&
2005 Suzuki GSX-R 600 K5
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lextcy
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Sydney, IS300
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I have the Teck Grounding Kit
After installation I did notice smoother shifting, especially 1-2 shift
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jasestu
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Sorry to dredge up an ageing thread, but can anyone with a grounding/earthing kit please give me a list of the points that the kit grounds to?

Thanks in advance...
ex RS200 Z ed 6MT | Bay of Plenty, New Zealand
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Sirnixalot
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some pictures of the ones i used. I added some more...there is a grounding point for the injectors under the intake manifold...its near impossible to get to unless you take the manifold off so you may want to leave that one out.

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Sirnixalot
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Sirnixalot
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Sirnixalot
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jasestu
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To summarise...

You've got a single 4 awg wire runing from the battery to a distribution block behind the left head lamp. From there it splits into three 8 awg cables and runs to 4 earthing points.

Specifically:

1 - Engine block (by where the radiator hose joins, waterpump?)
2 - Throttlebody
3 - Firewall (next to VIN plate)

The firewall point then runs to the cylinder head (under the beams cover).

That correct?

Total length of wire used?
ex RS200 Z ed 6MT | Bay of Plenty, New Zealand
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Sirnixalot
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that correct.

I think i used about 12-15ft of 8awg and 3ft of 4awg.

Basically look for the factory grounding points and use those. The one near the radiator hose has changed, i got a larger terminal and tied it into the ground right above the exhaust manifold.
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Cashfree
Lowered
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Hey - I found these articles/pictures about earthing kits : Worth a read

http://www.fastfoursforumscarclub.com/temp/ground_2.jpg
http://www.fastfoursforumscarclub.com/temp/ground_3.jpg
http://www.fastfoursforumscarclub.com/temp/ground_4.jpg
http://www.fastfoursforumscarclub.com/temp/ground_1.jpg

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Cashfree
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Hey guys.. - just wondering -- but the connection from the firewall to cylinder head... is that ideal for a grounding point since the engine itself gets extremely hot? And also from the distribution block to the firewall, the wires would be directly over the exhaust heat? ...

Also - I notice on some kits that there are up to 6 wires grounding to different parts of the engine - .... the more the better?

Thanks..

Henry
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Sirnixalot
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more isnt really better. You want to look for 2 things

1) factory grounding points
2) any important sensors or group of them in the same area

Once i figure out which wire on the MAF sensor is the ground i intend on splicing into the harness to re-enforce its ground as well. That one isnt for the unexperienced though.
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jasestu
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Sirnixalot,Jan 9 2005
03:57 AM
Once i figure out which wire on the MAF sensor is the ground i intend on splicing into the harness to re-enforce its ground as well.  That one isnt for the unexperienced though.

Dead right, it's a temperamental sensor, not one you want to play with if you can avoid it, but on the flipside it's certainly one that would be good to know is properly earthed.
ex RS200 Z ed 6MT | Bay of Plenty, New Zealand
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