VVTSI

Whats the theory?

ponyman

iTrader: (5)

The theory is that if you have a better connection to ground you will be able to produce a better spark....This in turn will help to increase how efficiently you can burn the air/fuel mixture inside the cylinder...The same also goes for "upgraded" spark plugs, that better spark equals better ignition and more power...Unfortunately, the results you will see from either one, or both, of these tends to be rather anti-climatic...However, as far as grounding kits go, from my understanding you are more likely to have less electrical "drain" under idle than anything else....So, if you are running a high wattage system, or some high wattage bulbs then it might be a worth-while investment.

Skunk2ner

iTrader: (1)

well said

joe6680

I'm sure any noticeable HP gains will be wiped out by the added weight. Grounding kits are more for looks and handeling as opposed to HP gains.

ponyman

iTrader: (5)

Who mentioned weight, I mean 5lbs for a grounding kit, hell your backpack weighs more than that...so weight is not really an issue...and how on earth does a grounding kit affect handling??? maybe I'm missing something, but I'm pretty sure they are not related.

Master

iTrader: (1)

I think you are thinking of ground effects not grounding kits. How the hell are wires gonna weight so much that it takes away fromy your performance. Oh and how do wires in the engine bay effect your handeling?

tacheon

I said it before on another thread, but I'll say it again here...
Somebody show me show me a controlled test of where this actually improves fuel economy and horsepower. So far the only sites I have seen which claim any benefit are those who are trying to sell you a kit of some sort. Grounding loss is negligible. Try to measure it with an ohmmeter or scope. I bet you can't measure it on a digital multimeter because you won't be able to distinguish it from the multimeter's specified error for the meter.

Master

iTrader: (1)

^^^^^uhhhhhhhh yeah

SOHC

yeah... hes thinking of body kits... which is understandable considering the thread title.

Master

iTrader: (1)

the title is self explanitory it says grounding kit not bodykit or ground effects

HELP_ME

iTrader: (2)

haha...

tacheon

Somebody please show me some conclusive evidence of these grounding kits fulfilling claims of increased horsepower and mileage. It seems to me that the only people that are gaining from these so-called grounding kits are the people who are selling them.

gangrel138

Well. I bought into the hype from gearbox and what other members on this forum have said about improving the grounding system and ordered a Sun Hyper Voltage System. Since I keep good track of my gas mileage I'll post a report after I install it. I'm usually around 34.5-35 MPG.

obguam

iTrader: (1)

Well I don't have any "conclusive evidence" for you, but about a year ago Sport Compact and at least one other import tuner mag did some "objective" dyno testing of the Sun Auto GK on several different cars, and reported surprisingly consistent and generally favorable results, albeit only slight HP gains. I can also honestly (but subjectively) attest that since a Bridge Motorsport's GK and Hyper Voltage System were installed in my car there's been much less static on my radio, my lights no longer get noticeably dimmer in neutral and my throttle response seems a bit more crisp. Many other 7thgen members have installed grounding kits and reported satisfactory results. Their overwhelmingly positive assessments are as conclusive to me as any single, purportedly accurate dyno test.

gangrel138

Haven't been back to the track to see if my time has picked up but I put in my HVS and it seems like the car has gotten a little more responsive. Gas mileage before was 34.9 MPG and it seems right now like it might be the same on this tank or could possibly go up a tiny bit.

Mistro

heh i know he was thinking about ground effects

but if theirs any one of you actuall out there who there who think those wires are going to add too much weight then you might also want to consider going to jenny craig or that other gay guy.. umm .. simmons or something. That would shave a few pounds of the car. Or an important part of the car ... YOU!

itskalvin

iTrader: (12)

how much do the hyper voltage systems go for and were can i find a good deal on these

gearbox

iTrader: (95)

I got mine from optauto.com for around $180? They're not cheap, and you want the type MR. Basically it works like a big capacitor to stabilize voltage leaving the battery.

zachgeyer

iTrader: (3)

maybe

gangrel138

If you get an HVS go to the Rotary Xecret 7 website. Got the MR for $150 after shipping and received my order after 3 days.

Crashoveride

iTrader: (2)

I also read an article from Sport Compact and Import Tuner that did dyno tests on them and they came up with maybe 1-2 HP gains, but thats it really, but its not just about HP its about better grounding, fuel mileage, ect .....

Just my $0.02


Crashoveride

R1Style

iTrader: (20)

Heres a a quote I found from a 1.8T guy who dynoed after his ground kit...

Also, found this article... Suzuki Aerio: http://www.importtuner.com/tech/0212it_ppsuzuki/

Quote from the Article:

tacheon

I found the same article. It should be noted that a dyno run back to back doesn't mean that they're identical tests. Almost everybody who has run on a dyno can tell you that their second run on a dyno is almost always higher than their first. Usually by 1-2% higher due to the engine oil warming up and flowing better, as well as the tires warming up etc. So if you were to dyno a car once as a so-called baseline, then add the ground wires on a subsequent run, you couldn't say conclusively that the ground wires contributed to the small horsepower increase. A better test would be to do multiple runs with the ground wires added on the first and second for multiple tests and see what sort of numbers you get. The same applies to all "before and after" dyno tests done for any component replacement.

gangrel138

A more practical real world test would be at the drag strip. Make a few runs without the ground kit and then a few more with the ground kit. The real world E.T.'s don't lie.