I need help wiring my Mallory 685 Hyfire VI box to my car. My nitrous kit is a Dynotune single nozzle wet kit, with the purge, heater, and fuel pressure safety switch. I have done some searching and have found that I might need the Msd or mallory harness too hook it up? Is is worth it trying to do it with out the harness? I am looking for a diagram or even witch diagram in the manual to follow to hook this thing up. Thanks

 

please do a search , i did the other night and found 3 topics just for the question you are asking
here is 1 for ya http://web.camaross.com/forums/showt...y+with+nitrous

here are the others
http://web.camaross.com/forums/searc...archid=1535390

 

Wiring the kit is painfully simple. I would strongly suggest buying the MSD harness for 30 bucks and avoid cutting and splicing into the factory harness. You basically are going to hook up a total of 6 wires to get the box to function, one is for power, one is for ground, and the other 4 will be crimped to the MSD harness which will in turn plug into your ignition coil. Here is the correct color coordination for the MSD harness to the Mallory box:
Red to Red
Black to Black
White to Green
Orange to Yellow
Just follow the instructions that come with the box, it isn't too hard to follow. After that, follow the link provided above to get your window switch and timing retard functions hooked up.

 

what about the map sensor hook up? do i need to worry about hooking that up? and how exactly dose the box hook up to the tps sensor. Is that another harness i need to buy? Thanks for the help

 

You don't hook up either of those.

 

Sorry for bringing up an old thread but you just saved me!!!!! I bought the MSD harness P/N 8876 to use with my mallory 685 and was tripping ball's becuase the wires didnt color match! Im very wire stupid so im very thankfull i searched and found this!

 

I used this when I did mine, thanks to all those who came before us

and solder the wires

 

Just what I needed. I'm going to post pics of my whole install to help those to come..LOL

 

Let's see those install pics.

-Dustin-