In my rx7s, I drilled a hole in the hatch. Found a nice spot on the frame, and grounded it there. Then just popped a grommet on the hole, never had an issue with grounding. You really just have to make sure its a good contact, and seal it so rust doesn't start.

 

What did you ground the motor to? The OEM - lead on 240s goes from battery to frame to motor with one wire.. I dont like having the motor not grounded to the battery.

Anyways I like over kill.

 

i found a threded hole in the trunk and just scuffed off some of the paint to show the metal and bolted down my ground..shouldnt have to worrie about rust unless you have a leaky trunk lid plus its gonna cost you 80 bucks or more to run both power and ground to the front..theres no point

 

i made a short ground that goes from the motor to the frame for the engine ground

 

50ft of 2ga was $75 and I'm only using 30ft of that and the rest of the terminals are not that expensive. Anyways I never said it wouldnt work because it obviously does or the wouldnt sell off the shelf kits that way, but I dont want the chassis being the intermintent ground between the battery and motor.

Another reason I'm running both to the front is I'm doing remote battery terminals on the shock tower.

 

With the front, just find a big bolt hole. Get a nice clean bolt, clean up the threads and the threads in the hole. Put a ring on the wire, and ground it like that.

I think on my last one I used the bolt for the sway bar mount, on the frame.

My 929 is the same way, batter - frame - motor. But as long as your rear ground is good as well as your front, you're fine.

And just like he said, its gonna cost a lot more to run a full 0-2awg ground up front.

 

i guess if you have the wire do it but i just think its unnecessary to do it that way plus its extra wire you have to run and worrie about..its ur car tho..cars lookin great btw

 

Its not as expensive as most people assume, and I think this is the correct way to do it, so spending a few extra dollars to do it my way isnt going to kill me.

I dont know why running one more wire would make it that much more of a hassle.

Anyways If the weather clears up I might be able to paint the bay sunday.

 

oh and i spent maybe 30 relocating mine with fresh 2g wire and terminals

im not sayin ur doin it wrong, ur doin it one correct way

 

Yeh I am with him, either way you do it is A right way. I just always found it to be more of a hassle to have the extra wire to run, and hide. But the car is coming together great man.