HoldmyMouse

I was skeptical at first too that the grounding kit would improve the manual shifting in DS Mode but it did! I would say it was significantly noticeable during up shift. My bass got a stronger kick too. I followed the OP instruction and made my kit with 8 awg stranded. Awesome and easy mod. Thanks OP!!!

Carfanatic

I had a question in regards to the

6 individual 8 gauge ring terminals
3 individual 4 gauge ring terminals

How big are the holes suppose to be for the actual rings ?
5/16 HOLE ?

I'm going to do this , I can do this LOL

I love how i'm motivating myself not to screw this up .

Kirkules

Excellent Write up & good photo detail. I did not read all of the pages so I may have missed this, but I notices you used Red cable for your grounding kit. And some of the on line kits are red. In general terms though, a red wire on a car is a hot wire. just for safety sake shouldn't the grounding kit wires be blue, or black, or anything but red?

G37Some

iTrader: (1)

with regards to the grounding kit and unplugging the battery, some have had problems where u have to reset/program the windows because of disconnecting the battery. Are there any other side issues that result from this?

Might be silly, but I'm not familiar in this area at all - would resetting the ECU from unplugging the battery affect the tune I just got?

bri

iTrader: (1)

About to do this mod, but came across this older thread that says not to ground the battery because it would bypass a voltage detection/varying circuit that controls the alternator:
https://www.myg37.com/forums/g37-cou...in-my-g37.html

Any other comments on this theory?

G37Some

iTrader: (1)

its an install video but throughout the process he discusses pros and cons

smakfactor1

iTrader: (2)

Probably safe to assume I should do this on a 2013 also. Chances of them having improved grounding....who knows.

jazzmang

Grounding improvement was probably not likely.

bri

iTrader: (1)

Watched the video twice, while helpful they didn't mention anything about vehicles with a Battery Current Sensor. When I a chance to look at mine, I'm going to see if I can locate the BCS unit and add ground wires only where there are already wires from battery to BCS and BCS to chassis.

G37Some

iTrader: (1)

Oh sorry Bri didnt see the specifics of your question =\

BTW I just made these last night. Took about an hour to get everything done. Took my time while watching family guy and also soldered the connections. However they're not done yet, I didn't get the wire sleeves in the mail yesterday so I will do that today when it gets delivered.

guy from norcal

iTrader: (2)

great DIY made a very noticable difference in shifting for sure

gsteigerwald

Does it matter what size the ring terminals are? 1/2'... 3/8'... 1/4'... 5/16'? I see you used different sizes in the pictures.

G37Some

iTrader: (1)

Use whatever can fit a screw through it. I think I used 3/8 or 1/4. As long as it makes contact thats all you need.

gsteigerwald

Thanks, maybe another dumb question but does it really matter if I connect both of those wires and put them into one terminal or is it okay to just use two different terminals. I have a sub/amp install and am using 4 gauge wires for my grounding kit and its hard to find 2 gauge terminals. Or will 1/0 gauge terminals work with just having to crimp down harder?

gsteigerwald

Disregard that last post, I found terminals to connect both into 1. Great DIY btw.