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Old 08-26-2003, 03:17 AM   #1
bambams247
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Default A few questions about Hyper Ground System (low resistance grounding cable system)

HEY! I am jsut doing some research and wondering about a Hyper Ground System (low resistance grounding cable system).

I would be interested in purchasing this for a 2003 Subaru Impreza 2.5RS (bugeyed)

Here are my questions:
- Has anyone purchased this kit?
- What is the performance improvement on the kit?
- Was it worth it?
- Does anyone have pictures of the install?

Thanks in advance!
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Old 08-26-2003, 09:13 AM   #2
IggDawg
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just go to home depot or radio shack. buy a bunch of big gauge braided copper wire and some crimp fittings. more flexible is better. it won't wiggle out of the crimp fittings as quick. and run your own grounds. all the hyperground kit is is just wires and a distribution block. there's no magic.

-IggDawg
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Old 08-26-2003, 09:19 AM   #3
Neek
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Agree with Igg...I did my own grounding as well...scoobymods has a page on it too, I believe. I haven't noticed much difference, but who knows
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Old 08-26-2003, 10:56 AM   #4
PARANOID56
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I used the Speedmonkee kit (and now i see a group deal going on for these for only 55 bucks shiped LINK look at the last page, or in the group buy section.
I put this on my 03 RS2.5 and it smothed out the idle, and got rid of the little hesatation.
for the price, (and look) its a good deal.
Thanks
Shane
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Old 08-26-2003, 11:51 AM   #5
IggDawg
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I wouldn't reccommend that design if it is what I think it is. it says that it has one big mother wire that goes to the passenger side strut tower, and a bunch of smaller wires that go from that point. the whole idea behind the grounding mod is to reduce the number of connections between the sensors and the battery. it should be one wire from the battery to that strut tower, and a bunch of other wires from teh battery to all the locations. it has nothing to do with the width of the wires. it has everything to do with the number of connections.

-IggDawg
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Old 08-26-2003, 11:58 AM   #6
PARANOID56
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Yep, that is the design, but it really has to do with path with the least resistance. So, with the 8ga wire, there is little to no resistance from the ends (all 5 of them) to the negative side of the battery. One of the other reasons that I think all the other kits out there are just a bunch of wires is because of ease of manufacture, where as these look like a PITA to make.
Shane
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Old 08-26-2003, 01:36 PM   #7
IggDawg
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a much thinner wire would still have close to zero resistance. it really has to do wiht the number of connections, since hte wires themselves are not a high resistance path. the chassis is a big chunk of metal. much less resistance than a wire. the engine block is solid metal. even less resistance. so where does the resistance come in? at the connections where wires meet and whatnot. and believe me, it doesn't take much of a wire to be a very low resistance path. 12-14 GA would be fine. it's a simple 12-volt circuit with very few amps running through each wire. the benefit comes from reducing the number of junctions the current has to travel between the ground post and the sensors.

trust me on this one . look up the big long SPG thread we had in here a while back. I go VERY deep into detail about how all this works.

-IggDawg
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Old 08-26-2003, 05:35 PM   #8
Dr. Morbid
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I have the AroSpeed Groundwire kit (my buddy works at the local import shop so the price he cut me was cheaper than buying wire and conncections myself).

Looks very nice and seems to work. Dropped my low idle by ~500rpm, fuel economy improved a bit, and the cool thing is at 3000rpm its like a little shot of nitrous that makes the tach ramp up much faster than it used to.

Could be psychological desire playing a role although it makes my butt dyno smile sideways so something happened inside the engine bay.
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Old 08-27-2003, 05:25 PM   #9
4wheelflyer
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I just made one a little while ago, I just used some nice 8G wire
and bunch of connectors ect.... any ways it does help a bit , I noticed better response , bit more torque thats about it.
if you are going to put one make sure you battery is unplugged for about 1 hour (to reset ecu) then idle for a few min, then go for a good high RPM ride and your set.
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