Battery Ground cable connection

[miklos]

S13 SOHC

1. Is a 4 gauge cable big enough?

2. Where is the best place to connect the negative battery cable? To the Frame? To the Engine manifold?

[rcdad123]

the stock one went to intake manifold and the chassis. i believe its a 4 gauge wire.

[miklos]

So there was another cable from the manifold to the chassis?

[cotbu]

no one cable, two spots. chassis and manifold.
the best place would be, the chassis if only one connection is being made.
There are multiple grounds, grounded to the chassis everywhere.

[Tempo]

on my car there's one that goes to the engine, and a itty bitty one that went to the chassis. So 2 wires for negative, bigger one to the intake manifold, smaller to the chassis. 4 guage should be fine.

[s14unimog]

ground it to the chassis first. Then ground the motor to the chassis. 4AWG is sufficient.