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lnferno
02-23-2003, 05:01 PM
I was very skeptical about getting a grounding kit, so I did TONS of research before buying my kit. My grounding kit allows for cleaner data transfer to the ECU. The kit I bought has been measured to ensure that there isn't any waisted length. As you know, the shortest distance between two points is a straight line. Yadda Yadda....

Anyways, the result is more accurate measurements by the ECU and more accurate performance, smoother idle and acceleration (nothing earth shattering, but it is noticeable). On a normal system, electric current flows from a positive terminal to a negative terminal through the car body. But there is a lot of resistance at connectors of the body, engine and transmission. The resistance slows down the flow of electricity to a degree that electrical components Like the ECU and spark plugs cannot perform at their peaks. In order to get the highest performance out of any car, you have to achieve a maximum electricity flow with the least resistance along its electrical circuit. Basically, a grounding system does to your electrical circuit like a high performance intake & exhaust system does for the gas. As I mentioned, I did a lot of research on this topic and found that it has become the hottest modification performed by car enthusiasts in Japan lately. Thinking selfishly, I did this research specifically for the 350Z and found that you will get 1.5 - 2 HP gain.

No, this type of mod isn't going to "throw you back into your seat", but I do think that it is a very worthwhile and cost effective mod. My kit only costs $75. When I was researching what it would take to make my own -vs- buying one, this is what I came up with:

20 ft. 4 gauge insulated copper wire = $32.00
Box of 24 gold plated terminals = $25.00
3 ft. Heat Shrink tube = $2.50
Heat Shrink Gun = $29.00
Industrial Crimp = $30.00


I don't have a heat shrink gun or an industrial crimp, so for me, I would rather pay the $75 for the kit, but hey, to each his own.

I hope this information helps anyone interested in getting a grounding kit for their car.

Dante

stu
02-23-2003, 08:03 PM
I've heard some stuff about these, but nothing concrete.

TXKompressor
02-23-2003, 08:33 PM
which one were you looking to get?

Pang
02-24-2003, 10:45 PM
i didn't believe that grounding cables can actually make power at first till i saw dyno charts. I think thats has to be the easiest way to gain a few horse

WagN2NR
02-25-2003, 11:38 AM
You should post a Review of the product you are geting for HAI. Look on the left of your screen just above the Get Stickers link/button.

AcuraBro
02-25-2003, 08:58 PM
In the most recent Turbo magazine, they have the Sun ground kit dyno tuned in there on 3 cars- an S2000, a sentra, and an RX-7. The Sentra gained 1-3whp, the S2000 was a tad higher, and the RX-7 gained 15whp from the daisy-chained ground kit.

Bedlam
02-25-2003, 09:56 PM
there is a really good and well written arcticle about this on COSR. If you are registered over there...go check it out. Otherwise..well...it IS COSR after all. I thought it was a very nice post however.

-Bedlam

Hellified SH
02-25-2003, 10:05 PM
Hey Dantethelnferno on cosr posted the same thing http://www.cosr.com/forum1/index.php?act=ST&f=80&t=7497&hl=grounding+kit

Hellified SH
02-25-2003, 10:07 PM
Im actually looking into buying a set though they are universally fitted so I have no idea what size I need

lnferno
02-25-2003, 10:07 PM
Originally posted by Hellified SH
Hey Dantethelnferno on cosr posted the same thing http://www.cosr.com/forum1/index.php?act=ST&f=80&t=7497&hl=grounding+kit

Yup -- that would be me. :)

Hellified SH
02-25-2003, 10:16 PM
Originally posted by lnferno
Yup -- that would be me. :)

Kinda figured that so what size of Grounding wires do I need

lnferno
02-25-2003, 10:20 PM
Originally posted by Hellified SH
Kinda figured that so what size of Grounding wires do I need

4 gauge would work best. One guy used 2 gauge, which is pretty fat (literally). Most aftermarket grounding kits use 4 gauge.

CSMsi311
02-25-2003, 10:21 PM
I was outside the other day and I measured one stock wire between the engine block and the chassis (in the front of the engine bay) and the wire only measured around 3 milliOhms resistances. That is very small so I think these wires work because they lower the 'noise' in the wires.

When it warms up I'll measure the resistance of the rest of the wires.

TXKompressor
02-25-2003, 10:38 PM
There is a pretty good kit on GBC check it out:

http://www.groupbuycenter.com/buy.aspx?id=8990

the arospeed one got pretty good reviews in SCC and Turbo Mag. Cheap too.. like $40

RiceNmotioN
03-04-2003, 11:36 AM
Hey i got an arospeed ground kit and it really works!!! i gain an extra 3hp/5tq it help alot but i wassent sure were to install it... it tells you where but the picture were to dark....

Brian
03-04-2003, 11:57 AM
Originally posted by RiceNmotioN
Hey i got an arospeed ground kit and it really works!!! i gain an extra 3hp/5tq it help alot but i wassent sure were to install it... it tells you where but the picture were to dark....

Did you dyno this or just guess??


I just can't see spending 70+ dollars on something like this, especially for 3hp. Hell for 70 dollars I could buy a boost controller and get 20 or 30 hp :D