grgggggggggggg

[trent george]

[speedmelter]

........

[speedmelter]

why would you want to do that? all you need is a sufficiently solid zero potential point on the car to ground the amplifier.

[nigel1977]

ok ppl quick question is groundin ur amp straight to ur battery -ve wise
would u et a better ground

The spl guys seem to have a different take on this one.

The trend for really high current drawing (spl) systems is to run multiple lengths of cable from the main battery up front to the back, and then to the batteries, and then to the amp's ground. or something like that. Basically, not using the vehicles chassis.

This was discussed before.

For a simple system, you're more than safe finding a good clean body ground, on a large section of metal.

[ruffneck_12]

Unless you doing a mega install with a truckload of batteries and alternators, a chassis ground will work fine

just make sure you have a good contact with the chassis, clean off the paint, bolt that sheit, rub some petroleum jelly on it to prevent corrosion

[noyztoyz]

ok ppl quick question is groundin ur amp straight to ur battery -ve wise
would u et a better ground

its not a big deal to do this, u can safely
but
the ground from this battery to the car body must be very good.
and ground wires should be as short as possible

[kurpal_v2]

ok ppl quick question is groundin ur amp straight to ur battery -ve wise
would u et a better ground

For a simple system, you're more than safe finding a good clean body ground, on a large section of metal.

This.

[3stagevtec]

A ground wire from your engine block to vehicle chassis (body) is just as important also..

[kurpal_v2]

^^ Why?


Always heard that but never knew why.

[Ted_v2]

I think it's because the engine /alternator makes the power

[speedmelter]

yea its cuz the alternator is grounded to the body via the engine block

[speedmelter]

and i have heard about people who has improper block grounding, having their coil-packs damaged due to this

[kurpal_v2]

yea its cuz the alternator is grounded to the body via the engine block

I thought the alt comes OEM with a copper bolt for a ground?

[speedmelter]

yea its cuz the alternator is grounded to the body via the engine block

I thought the alt comes OEM with a copper bolt for a ground?

im not sure man.. was thinking that the alternator utilises the metallic property and large mass of the engine block to ground itself.

[nigel1977]

Regardless, the engine is also strapped to the chassis of the car.

In the hiluxes, the same run of cable, has a lug crimped sideways on it for the battery to body ground about 12" from the neg pole, and then finally bolted to the engine.

I think Ford rangers are the same as well.
However,recall seeing ground straps on the alternator to the body. IIRC. B12 ???

[3stagevtec]

yea its cuz the alternator is grounded to the body via the engine block

I thought the alt comes OEM with a copper bolt for a ground?

im not sure man.. was thinking that the alternator utilises the metallic property and large mass of the engine block to ground itself.

The alternator casing is the true ground point in your vehicle, not the battery negative terminal. The alternator is bolted to the engine, so the engine itself becomes the main ground. For the chassis to be a proper ground, you need to connect the engine (or the alternator case) to the chassis. It's part of the circuit.

I noticed some high output alternators come with a ground strap on the alternator casing itself. This is most ideal, but not always necessary.

[noyztoyz]

Your mechman alternator has a nice ground stud!

[exia_sir]

Ground wire should never carry voltage. Ground is a zero reference point for current. Doesn't matter where you put it as long as it's as short as possible and tied to somewhere which has no voltage.