Hypergrounding

Author
Discussion

zadumbreion

Original Poster:

1,049 posts

222 months

Monday 7th August 2006
quotequote all
Does anyone know anything about hypergrounding? There's a discussion on the Alpina forum about these hyperground kits which basically provide critical components in the car, engine etc with much higher quality connections to the battery ground (if I understand the concept). It's supposed to provide better idling, sometimes higher torque etc. Looks like a couple of members have tried it and reported clear improvements...?

V8 EOL

2,781 posts

224 months

Tuesday 8th August 2006
quotequote all
Sounds like slick 50 & go faster stripes to me!

Thinking it through logically, the only thing you are potentially going to gain from a lower impedance electrical circuit is a spark at slightly higher voltage. Given that the spark is created at very high voltage levels I cant see it making any real benefit. Probably changing / cleaning / gaping your plugs every so often would yield a better result?

As a secondary advantage, you would have brighter headlights, better engine cranking etc.

demolition man

1,050 posts

255 months

Tuesday 8th August 2006
quotequote all
Sounds like Hyperbollox to me!

I like a mod as much as the next HSV/Mon owner...... But, this obsession to spend vast amounts of cash just to gain 1 or 2 bhp, is frankly beyond my comprehension.

Headers - Yes
Supercharger - Yes
Catback Exhaust - Yes
Turbo - Yes
AP Brakes - Yes
Quicksilver Respray - Yes

I can see the point of those.

Rearranging the badges on the front of the car to improve the aerodynamics or getting a special hose or cable that will get you 0.05 of a bhp.... WTF!

These people should get a life and/or give me their spare cash



Edited by demolition man on Tuesday 8th August 08:57

v8d

458 posts

236 months

Tuesday 8th August 2006
quotequote all
As an electronics engineer by trade, the only benefit I can see in adding extra grounding would be if there is a problem with the existing stuff. The effect of lowering the circuit resistance by a few mOhms would be minimal. C5 Vette has some gnd posts in the engine bay that corrode cos of spray, and are hard to find/reach. Adding a supplementary gnd can be easier and quicker than finding the actual fault !!
Other than that, I second what Demolition man said.
Except that when he said "Quicksilver" he actually meant "impulse blue" But I'm sure you'd all spotted that mistake anyway ! He He

Edited by v8d on Tuesday 8th August 10:09

GSI_Daz

1,830 posts

222 months

Tuesday 8th August 2006
quotequote all
demolition man said:
Sounds like Hyperbollox to me!

I like a mod as much as the next HSV/Mon owner...... But, this obsession to spend vast amounts of cash just to gain 1 or 2 bhp, is frankly beyond my comprehension.

Headers - Yes
Supercharger - Yes
Catback Exhaust - Yes
Turbo - Yes
AP Brakes - Yes
Quicksilver Respray - Yes

I can see the point of those.

Rearranging the badges on the front of the car to improve the aerodynamics or getting a special hose or cable that will get you 0.05 of a bhp.... WTF!

These people should get a life and/or give me their spare cash



Edited by demolition man on Tuesday 8th August 08:57


I was considering the Quicksilver respray but I am not sure I could cope with the extra power

Misker

46 posts

238 months

Tuesday 8th August 2006
quotequote all
Although not yet a Monaro owner (hope to be soon) I read this forum with interest every day. Folks do not realise that starting an engine even on a warm day can involve loads of 300+ amps. In the winter and with a large engine you can reach 700+ amps. Inefficient grounding to contain these very large loads can pit bearings, melt cables etc: as the current flows through whatever path it can find.

Its a good ides to ensure that anything that has a high amperage consumption is adequately grounded, something the manufacturers do not always do.

White is the most exclusive and fastest colour.

V8HSV

2,457 posts

254 months

Tuesday 8th August 2006
quotequote all
Got to admit that correct grounding is everything, especially with ICE on board (1,500 watts)

Black will always be the fastest....

dilbert

7,741 posts

233 months

Tuesday 8th August 2006
quotequote all
Misker said:
Although not yet a Monaro owner (hope to be soon) I read this forum with interest every day. Folks do not realise that starting an engine even on a warm day can involve loads of 300+ amps. In the winter and with a large engine you can reach 700+ amps. Inefficient grounding to contain these very large loads can pit bearings, melt cables etc: as the current flows through whatever path it can find.

Its a good ides to ensure that anything that has a high amperage consumption is adequately grounded, something the manufacturers do not always do.

White is the most exclusive and fastest colour.


I'd second that one. I had a quick squint through google, and most of it looks like Hype.

The one beneficial thing like this you can do, is good if you often have difficulty starting.

Obviously check that the basic components are alright first. If you still have difficulty, run a very heavy guage wire (something like welder cable) from the starter motor ground to the battery negative. The return for the starter often relies on the engine block and the chsssis as the conduction path, and as has been pointed out can carry huge currents. It's not so much the engine block or the chassis, but the connections between them.

When you add the wire use a conductive grease to make the joints at the bolt/screw terminals.



Edited by dilbert on Tuesday 8th August 14:38

Misker

46 posts

238 months

Tuesday 8th August 2006
quotequote all
Where Is the Best Ground?
With the engine shut off, the battery supplies power to accessories and is the source of the best ground. After the engine starts and the alternator takes over, the alternator becomes the source of all power and the battery becomes a load and stabilizer. The best ground now is on the alternator case, located at the grounding point for the brush set, rectifier bridge and in some cases, the regulator. Where are they mounted? On the rear case half, and how is the rear case half attached to the front? Typically with four through bolts sandwiching the field between them. Most alternators use the front case half as the mount for the belt adjusters and block attachment. With the engine running, it is always a good idea to measure a voltage drop between the front and rear case halves to ensure great connections.

dilbert

7,741 posts

233 months

Tuesday 8th August 2006
quotequote all
The best ground will always be at the battery.

Think of the battery as being a huge capacitor with a very low output impedance. Even with the regulator on the alternator, the battery will be the biggest single stabilising influence on the car electrical systems.

The battery can potentially supply six or seven hundred amps almost instantaneously. It has to for the biggest load (even considering wideboy stereos) which is the starter. The alternator can only ever produce a comparitively small output.

The battery can only produce high current for a short time. The stereo may be a smaller load, but it runs for longer. If this is draining your battery, then it's because the alternator is not big enough. Get a bigger alternator, or fit a second one.

barking

228 posts

219 months

Tuesday 8th August 2006
quotequote all
Misker said:
White is the most exclusive and fastest colour.

That will explain why our common slow cars do not come in white, at least not in this country.

zadumbreion

Original Poster:

1,049 posts

222 months

Tuesday 8th August 2006
quotequote all
I know that non-metal kit cars often have problems with poor grounding... and in those cases running extra low-impedance ground cables definitely helps. But I suppose one could argue that they are a special case...

zadumbreion

Original Poster:

1,049 posts

222 months

Tuesday 8th August 2006
quotequote all
PS as to the important question -

Black is the fastest by a long way.

Swordfishcoupe

503 posts

222 months

Tuesday 8th August 2006
quotequote all
Hi there,

I used to run a grounding kit and box on my v6 coupe (Japanese kit but cant remember the make). Loads of the Americans reported better idle but on my car I noticed the aircon was a little smoother (weird I know).

To be honest I got the kit as an experiment and the box has a very bright blue LED on it which you can see under the bonnet !! I have not bothered refitting it to the Monaro but maybe I should. The Monaro could really do with a smoother idle though.

Cheers
Steven

V8D

458 posts

236 months

Tuesday 8th August 2006
quotequote all
Swordfishcoupe said:
Hi there,

I used to run a grounding kit and box on my v6 coupe (Japanese kit but cant remember the make). Loads of the Americans reported better idle but on my car I noticed the aircon was a little smoother (weird I know).

To be honest I got the kit as an experiment and the box has a very bright blue LED on it which you can see under the bonnet !! I have not bothered refitting it to the Monaro but maybe I should. The Monaro could really do with a smoother idle though.

Cheers
Steven


Try some Iridium plugs from NGK, they smoothed the idle considerably on my Monaro and also on the Vette (same engine)

yorkkie

544 posts

231 months

Tuesday 8th August 2006
quotequote all
v=IR as Mr Ohms says. of course when dealing with pulses as in the sparking system one has to consider surge impedance where Xl=2PiFL even bends in wire cause a significant impedance/resistance (also important when installing ICE).
Best earth must be at the battery cause that is where it originates from. The connection from the earth battery post to the bodyshell could in theory carry all the current the battery is supplying. Even the body shell (acting as a conductor) has resistance. Using additional copper wire from the battery direct to ICE will reduce volt drop and so increase power (multi-strand wire carries current better than solid conductors - skin effect. It is also better from a noise immunity perspective think solid wire think ariel/antennae.

By the way "Impulse Blue" is quickest, rarest and bestist colour.

Andy MIEE

V8D

458 posts

236 months

Tuesday 8th August 2006
quotequote all
yorkkie said:
v=IR as Mr Ohms says. of course when dealing with pulses as in the sparking system one has to consider surge impedance where Xl=2PiFL even bends in wire cause a significant impedance/resistance (also important when installing ICE).
Best earth must be at the battery cause that is where it originates from. The connection from the earth battery post to the bodyshell could in theory carry all the current the battery is supplying. Even the body shell (acting as a conductor) has resistance. Using additional copper wire from the battery direct to ICE will reduce volt drop and so increase power (multi-strand wire carries current better than solid conductors - skin effect. It is also better from a noise immunity perspective think solid wire think ariel/antennae.

By the way "Impulse Blue" is quickest, rarest and bestist colour.

Andy MIEE


At last - someone else knows the real truth about impulse blue !!!