How to Properly Ground a Race Car

Ed Wright · 10-21-2015, 08:48 AM

Quote:

Originally Posted by Jeff Niceswanger

Don't go directly to battery on the positive side if your running 16 volt battery's . You will have to connect to kill switch, so you are not charging your ECU and MSD during charging . They charge at 20 volts ,and I found out the hard way it will pretty much damage everything in your car ......

I learned this one the expensive way as well.

Jeff Niceswanger · 10-21-2015, 09:43 AM

Quote:

Originally Posted by Ed Wright

I learned this one the expensive way as well.

Me 2 .. And 2 seasons ... Burnt up the BS box 3 times( Points Drivers ) .. The Digital 7 box twice ... I had Andy Kronenbitter ( PK Racecars) re-wire the whole car, switch panel, shutoff switch...everything . In the process ,he found the problem ... Its probably fine as long as your on 12 volt system ..But he came up with a point.. " that is not legal" ... You would have hot wiring going up through car at all times ... No way to shut it off...

Ed Wright · 10-21-2015, 12:29 PM

The battery cut-off switch kills my engine too. Shuts off everything but the battery charger plugs Eastexas Racecars put in my rear fender. Everything else wired to the cut-off switch. Killed two FAST XFI ECUs and two MSD boxes before I pulled my head out.

10-21-2015, 12:29 PM	#3
Ed Wright Veteran Member Join Date: Mar 2005 Location: Sand Springs, OK Posts: 8,132 Likes: 896 Liked 390 Times in 170 Posts	Re: How to Properly Ground a Race Car The battery cut-off switch kills my engine too. Shuts off everything but the battery charger plugs Eastexas Racecars put in my rear fender. Everything else wired to the cut-off switch. Killed two FAST XFI ECUs and two MSD boxes before I pulled my head out. __________________ Ed Wright 4156 SS/JA