moogle

I am hearing rants about they hyper ground wires. How does it work. I know its a new cable the shorten the distance from the wave traveling "I think," but where do u put it and how does it work bsds that. I know that its cheap and it produces little hp/torque/fuel efficient/ but can anyone tell me a little more.

blizz81

It's just replacement and/or added ground wires for your existing stock engine bay grounds.

If you put this in a car straight off the showroom floor I doubt you'll see much difference at all as the car should have adequate, clean grounds...but the wires would hold up better than OEM. On a car with some age, or power accessories that might drain a little from the system, you might notice a bit of difference, but more in the area of 'restoring to factory performance'. It's not really a "bigger/better wire = keeps getting better" kind of thing.

You can do this job with your own wire, grease, and distribution block, etc. Just find ground points in your engine bay, sand the paint off, add some grease, and reground with existing or new wire. Some cars dont have the ground points cleaned from the factory, ie there's still paint that should be sanded off, but really, that shouldn't make a whole lot of difference.

RomanoM

I did it to my WRX wagon and it does help in terms of engine smoothness and response.

But!!! The WRX grounds come from the factory in poor condition to begin with. Most are still painted and some items are not grounded at all.

So, if or how much it helps depends much on the car itself to begin with and how much RF shielding the under-hood electronics have.

If you do it yourself, and don't be a fool and buy those insanely priced kits, it will cost you $20 and 1 hour of time. So, it's not a risky mod. Just need to find a Radio Shack.

here's some stuff on it:
http://www.scoobymods.com/forums/sho...ight=grounding

http://www.scoobymods.com/forums/sho...ight=grounding

neit_jnf

I found this on the April '03 issue of Turbo & High-Tech Performance Magazine:

neit_jnf

p2

neit_jnf

p3

neit_jnf

p4

neit_jnf

p5

neit_jnf

p6

neit_jnf

Now the best part
dyno1

neit_jnf

dyno 2

neit_jnf

Rotary Power!

This is the last one, hope it helps...

mac

I don't know much about dyno's and I'm curious about their tolerances/accuracy. If you were to do multiple readings on the same car within 60 minutes cool down between tests, what would they look like? Perfect match or something like those above?

neit_jnf

I wouldn't expect a perfect match but I wouldn't expect a 15+ hp difference either.

wakeech

certainly. in a high performance application such as that (tuned to +300hp), there is no aspect of the car which cannot be brought up to spec, meaning big "gains" from reworking deficient systems.

the 2.1 horsepower gain on the S2000 could actually be attributed to error if it was a one-off... there would have to be a stronger corellation, and that means a lot more data (for one).

Sputnik

Considering the accuracy of rolling dynos, 2.1 peak isn't too indicative.

Don't forget, as some cars get older, grounding is an issue. The FC RX7 is a good example of a car commonly needing extra grounding. Not every car will benefit, but some will.

---jps

zoom44

here's a kit already available for the rx-8 from the aftermarket in japan

here


edit click the purple "RX-8" then click "POWER"

synthtk

Has anyone installed and noticed a difference with grounding wires in their RX8? They seem fairly controversial as far is if they work or not, some people say yes they do and have noticed results some say its impossible for them to help.

Has anyone made a DIY grounding wire kit for the RX8? What ground points do you use?

-Chris

blizz81

If you wanted to get adventurous, you could try to locate the ground points yourself under the hood. Just look for things like single black/negative wire ends screwed down on metal brackets, etc.

I would think any improvements would be if the grounding points were not adequate to begin with, ie paint was not sanded off the area, the connection isn't tight, etc. I think WRX owners found some of the stock grounds still painted, and see an improvement right out of the box.

I would think most new cars wouldn't see any improvement from redoing the grounds. More older cars perhaps, whose grounding points and/or wires have worn over time.

VividRacing.com

In our experience with our other project cars we've found about a 5h/p increace over stock with the grounding wires. The reason they work is very similar to the reason you use larger or heavier gauge wires on stereo systems. The heavier gauge allows a better electirical current to flow. Better electrical current reduces the amount of electric noise that the ECU must decipher. The easier the ECU has it, the more efficient it becomes. The direct result we've found on other cars besides the increase in h/p is smoother acceleration, power accessories run better and a slight increase in MPG due to the cleaner more efficient spark generated.

canzoomer

Mazda make a ground wire set for the RX-8 already.
Part # C902V0970

http://www.rx-8.mazda.co.jp/estimate...mei_roman=rx-8

MPG > HP

I asked the guy from Acosta Racing with the 3 rotor at 7 Stock 6. He said that grounding wires were a must in RX-7s but felt that the ones in the RX-8 were more than adequate. He said there was no way that this would yield 5 hp, couldn't hurt though.

canzoomer

Sorry, that was the wrong part #.
Should have been:
F151V8600

PUR NRG

If you could find a better detail pic I'm sure we could make our own...
________
HERBAL SHOP

synthtk

We need one of those things all spy movies seem to have where they can take any image and blow it up with no clairty loss..... damn pixelization!

-Chris