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Grounding Mod -- I'm gonna do it! :)

Old 27-Aug-2003, 10:44 PM
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Smile Grounding Mod -- I'm gonna do it! :)

Hi guys, I've got myself most of the parts needed for a grounding mod and I'm gonna be doing it soon! I've also identified most of the ground pointed suggested on this board and some from the Honda-Tech.com board. I've got myself some 8 gauge and 4 gauge wires and I'm gonna be running them as follows:

From the battery, I'll be running about 1 feet of 4 gauge wire to a point where my 8 gauge wires will be gathered from various points of the engine compartment. The 8 gauge wires will be routed as follows:

1.) from the transmission (under the intake), to the gathering point.
2) from the driver side front-corner of the engine cover, jumping to the passenger back-corner of the engine cover, to the gathering point.
3) from the passenger back-corner of the engine cover, to the VTEC solenoid housing.
4) from the alternator (maybe with a 4 gauge), to the throttle body (the bolt holding down the bracket that secures the throttle cable in place).
5) from the bolt holding down the bracket that secures the throttle cable, to the edge of the throttle body on the passenger side, then to the gathering point.
6) from the thermostat housing to the gathering point.

Does anybody have any other good suggestions? Actually, I'm having some trouble finding the thermostat. I know that Bruno mentioned it in an earlier thread, but I still can't see it. Is it the little metal can that sits under the distributor and above the transmission? Or is it further back?

Thanks a lot guys! I'd be interested to hear from people who has done the mod already. Please share your experience on the performance gains!

Take it easy guys.
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Old 27-Aug-2003, 11:19 PM
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sounds about right... whatr about your amplifier lol and you'd better ground your cat and dog ... thats about it lol
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Old 28-Aug-2003, 09:49 AM
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importunner has dynos on that ona an integra and prelude it gives u like 1-2hp not really worth it
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Old 28-Aug-2003, 12:06 PM
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Good luck
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Old 28-Aug-2003, 12:26 PM
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its not about hp...dont expect to have crazy tourque or hp after....its about a nice clean looking engine bay, smooth operating electronics, especially if you have a large stereo, less static in your speakers, more efficiant charging syatem, and your engine will start better, idle better, run smoother, and any sort of pulsation or minor engine surging on the higway should be compleatly eliminated...and who knows maybe your grounds were really bad before, so you might be "restoring some Lost hp"....

Im going to do my own kit from red power wire, cuz those kits they sell are rediculous 175$ or some ****, for a bundle of wire with the mounting heads put on for you...bs..just DIY!!! which sounds like j9chan is doing..
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Old 28-Aug-2003, 12:32 PM
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Yeah DIY is the way to go on something like this. Besides, I'm an electrical engineering grad; about time to apply some of the stuff I learnt from school in real life!
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Old 29-Aug-2003, 09:36 PM
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I did half of the ground upgrades before I stopped because i nopticed 0 difference.

If you want it to look a bit more colorful under there then go ahead but the stock one is fine.

Doens't improve much./
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Old 29-Aug-2003, 11:02 PM
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I did half of the upgrade tonight too! I did the wires to the engine cover, VTEC solenoid, and the throttle body. I have yet to do the alternator and the tranny grounds, but have already noticed some improvements! The engine's idle is smoother (doesn't shake as much) and acceleration is smoother, especially in the high RPM range! It's amazing how a few wires can do! I can't wait to put in the other two wires when I have more time!
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Old 30-Aug-2003, 12:36 AM
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LOL.

Ever hear of snake oil?

ANY dyno report which shows less than 5% change is within the error range of even the best dyno machines - that said .. believe what you want.

If you are doing it to make the engine bay look clean - wax the under-hood paint again and you will get better results.

If you are doing it to improve engine grounding, you need to add a few "ground straps" around the engine - namely near the cylinders to gain any finite improvement.

To each their own.

Any "improvements" you will feel are almost ALL pure psychological response. Try waxing your car - scientifically, you will get better results . Some people _may_ notice a better tuned engine because their old grounds were horrendous - but most will only have a lighter wallet.

PS: How much do these gorund kits cost you guys on average?
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Old 30-Aug-2003, 12:45 AM
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Originally posted by james_tg
LOL.

Ever hear of snake oil?

ANY dyno report which shows less than 5% change is within the error range of even the best dyno machines - that said .. believe what you want.

If you are doing it to make the engine bay look clean - wax the under-hood paint again and you will get better results.

If you are doing it to improve engine grounding, you need to add a few "ground straps" around the engine - namely near the cylinders to gain any finite improvement.

To each their own.

Any "improvements" you will feel are almost ALL pure psychological response. Try waxing your car - scientifically, you will get better results . Some people _may_ notice a better tuned engine because their old grounds were horrendous - but most will only have a lighter wallet.

PS: How much do these gorund kits cost you guys on average?
Ive seen them for around $100 us, but the materials cost me $10 when I bought the wire etc.
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Old 30-Aug-2003, 09:21 AM
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Originally posted by loudsubz


Ive seen them for around $100 us, but the materials cost me $10 when I bought the wire etc.
Good man! Everybody should take note of this!

I would be ignorant to say that there is no improvement in your engine's efficiency. The only trouble is that although humans are blessed with relatively sensitive sense organs, we can not percieve extremely small changes in HP.

It boils down to this:

1) How much money are you willing to spend per HP ?

2) If it don't go - chrome it

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Old 31-Aug-2003, 09:19 AM
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Originally posted by james_tg
Some people _may_ notice a better tuned engine because their old grounds were horrendous - but most will only have a lighter wallet.

PS: How much do these gorund kits cost you guys on average?
This was my point exactly, worn coroded ground wires = reistance.. replaceing them can only do good by restoring the electical system to better than it was from fartory...

The other point of it only costing 10$ for materials makes it worth it (I would never waste 150$ on a mod like this cuz yah you are right, your not going to gain any noticable hp) but 10 bucks hell why not??...

After all this is a hobby, and any time under my hood is fun, so why not, IMO its a good 10$ investment...Well I guess you could spend 10$ on some upgraded air fresheners, but they arnt half as fun to install

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Old 31-Aug-2003, 09:33 AM
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Lol. Its true - $10 spent that makes you feel good is worth it IMHO.
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Old 31-Aug-2003, 11:26 PM
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what a waste of time, money and effort, that's my opinion
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Old 01-Sep-2003, 08:44 PM
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I don't think it's much of an added hp that the mod is for. It's for smoother idle and acceleration, much like replacing your spark plugs and plug wires. That only makes sense because the grounding mod concerns the electrical system of the car, which the plugs and plug wires are part of. From my experience so far after the mod, I think there is some perceptible improvements. Then again, my car has 190,000 km on it, so perhaps that's why the improvement is noticeable. If your car is brand new, the improvement might not be so apparent.
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Old 01-Sep-2003, 09:26 PM
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Originally posted by j9chan
I don't think it's much of an added hp that the mod is for. It's for smoother idle and acceleration, much like replacing your spark plugs and plug wires. That only makes sense because the grounding mod concerns the electrical system of the car, which the plugs and plug wires are part of. From my experience so far after the mod, I think there is some perceptible improvements. Then again, my car has 190,000 km on it, so perhaps that's why the improvement is noticeable. If your car is brand new, the improvement might not be so apparent.

I agree, its more of a maintenence thing, some people dont understand this, they think you are trying to gain massive hp from a few wires...also ask any professional stereo installer and they will tell you to do it( runing 4g in the trunk and 10 at the battery is usless) ... I got 190,000km on my car, the grounds are crap and my stereo is starting to get static (running 2 amps 1000w total) and im noticing at highway speeds "very slight" engine surging... Im gonna do it see what happens 10 bucks is poket change to me anyway, and it aint gonna hurt anything....
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Old 03-Sep-2003, 10:30 PM
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Yeah,

Being an Electrical/Computer Engineering major, you already know electronic components are really sensitive to poor grounds. Considering the shitty impedance characteristics of your typical car chassis, and the fact that you have noisy high power (ignition) and noise sensitive low power components (ECU) sharing a common ground plane (the chassis), it's a wonder how anything works at all =P.

Most electronic components in the car have some serious DC noise filtering going on, which some would consider a kind of a hack. Why not just provide a nice clean direct ground to every sensitive component to begin with, instead of living with an insanely noisy ground and just trying to filter it out? It's expensive! The big trend in the industry is trimming down the wiring harness... not doubling the size of it by running ground wires to everything.

Either way... Grounding upgrade... excellent upgrade from an engineering point of view. The grounding setups of cars in general are crap - more of a cost cutting, poor performance compromise as opposed to doing it the right way.

Will you get 1023910947 extra horsepower from it? no... but those electrons in your car will flow better and not get confused =P...

-Slim...
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Old 03-Sep-2003, 10:41 PM
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Nice post Slim! Can't say it better myself!! It's nice to see somebody talk with some common sense on electrical engineering.
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Old 03-Sep-2003, 11:14 PM
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well put.... It nice to hear a well thought out responce with some logic behind it.. instaead of waste of money waste of time type response with no thought to back up their reasoning... It only makes sense whether your an electronic engineer or just an amature stereo builder/ car mechanic...in the end its only an hour of your time and 10-15 dollers out of your wallet, so why the hell not?? it can only help, whats there to loose!!
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Old 03-Sep-2003, 11:18 PM
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It's great to hear all the support from you guys!
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