kevincnc

I don't see a good chassis ground in the passenger footwell by the DME. The closest one I know of is under the stereo. I assume it needs a chassis ground instead of the DME ground to prevent a ground loop. Is it ok to splice into an existing ground wire? Any advice would be appreciated.

Jeremy Himsel

I ground it to the dedicated ground wires in the main harness that run to the back of the block. It's a better source.

fast951

Any bolt to the chassis works. The black wire must get ground from DME ground.

kevincnc

So pin 16,17, or 19? I don't see any other ground wires in the footwell are.

kevincnc

Yes I have the black on DME 16, so I'll find a chassis ground for 9,10,11 from the PB. Thanks guys

Chris Prack

Or you could use the ground post on the kickpanel under the carpet just behind the dash. That is the one I use.

User 41221

I found a ground point by my ABS control module in the passenger sidewell, worked great. You can also use the upper mounting post for the DME/KLR bracket, you know, the one that *no one* ever uses after the first time the unit comes out... lol

By the way, if anyone needs a Vitesse Racing Piggyback/Zeitronix wiring guide, I did one up on a spreadsheet that should be pretty handy for folks and can post it. When installing mine, I popped the pins out of the piggyback connector, soldered the Zeitronix leads to the pins and put a fiberglass sleeve over it, put the pins back in the piggyback connector, and then ran just one harness look down to the DME from the glovebox. I thought it worked out slick, but its way overkill for whats actually needed to install the VRPB and the Zeitronix.

Karl and I are planning to dyno the 951 tomorrow and then tweak it using the piggyback and redyno it, so hopefully we can post some before and after graphs to show what gains can be had from the piggyback on a 951 with a Vitesse Stage II kit. Following that (not tomorrow but soon, I'm still healing up from back surgery), we will be installing and dynoing two versions of Vitesse camshafts. I can't wait for that!

Regards,