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Old 11-18-2004, 11:54 AM
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battery grounding

is it better to ground to the frame or block?

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Old 11-18-2004, 01:00 PM
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I vote for block
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Old 11-18-2004, 03:04 PM
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Actually both should be grounded. Depending on where your battery is, like if it's in the trunk, I would run a large AWG ground cable to the engine along with the positive cable. While the frame is a fair ground, it can't compare to a 1/0 AWG cable.

Vince
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Old 11-18-2004, 03:37 PM
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The battery must be well grounded to the block, frame and body. The latter is often not done properly and since bodies are usually rubber mounted the only ground available is often the throttle cable.

The most important ground is from the battery to the starter motor which draws very hight current so that should be the primary one. From the block there should be heavy ground cables to the frame and to the body of a car and also to the bed if it is a pickup. Can't be too many ground wires.
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Old 11-18-2004, 03:47 PM
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Hey thanks for clearing that up for me guys, my understanding was that if you ran a cable from the battery to the block, it grounded everything - but now that you mention it it makes sense. thanks
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Old 11-18-2004, 04:13 PM
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Just imagine yourself as an electron and figure out how you get back home from an end device once you have done your job. This will dictate where you need ground wires.
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Old 11-18-2004, 05:55 PM
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Ground

Doc here

The best ground system is :

Run your Battery ground cable From the battery to a Bolt nearest your starter.

From that same bolt, run another battery cable with ring terminals on both ends
(You can get one for about $6 at the local autoparts store)
From there to any handy bolt on the frame.

From the same block bolt, run a 10 gauge or better wire from there to any handy spot on the firewall.

Run another 10 gauge from there to the alternator mount bolt or case ground.

Burnish off any paint and use star & Lock washers at all the bolts.

This system should outlast your car...

Doc
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