I'm looking for a decent engine ground for a relay I have set up for gauges and more things to come, because the battery negative terminal isn't cutting it. Where is a good engine ground that isn't too hot?

Alt mount.... good ground.... but I dunno if it will work for you... it might... :?

Just ground it at the same place the negative battrey cable is grounded.

how much power are you gonna draw? if not much any bolt on the body or fram or metal object near where the wire is should work...

Isnt there ar ground bolt underneath the carpeting right by the brake & gas pedal, or am I thinking of a different car.

Unless I'm totally screwed by pain medication, you can make a ground anywhere you want with a metal body/frame part and a self-tapping screw.

Ok I found the best ground possible, under the ignition coil module there is a bolt that secures the negative battery cable. I just ran my relay ground down there but still gonna pissed. Allow me to explain:

I can't seem to get my air/fuel gauge to light up all the way to the rich LED'* when I floor it. If anyone knows how air/fuel gauges work then you understand what I'm talking about. So I suspected a crappy ground because each time I chance to what seemed to be a better ground a few more lights when light up on the gauge, but now it just seems I don't have enough power because the gauge is still not sweeping all the way like it should. Brand new o2 sensor, brand new Optima redtop battery, and brand new DP 160amp alternator, power for gauge goes straight to battery (through relay), and negative from gauge is connected to the front head on the engine. I'm about to give up because at work (Autometer) they say to bring it in with an explaination of whats wrong...but my luck is they will find nothing wrong. So what now?

it might be the gauge itself.