Nitrous and Mallory 685 wiring diagram

I don't think this was posted before, but it's a good diagram.

http://i113.photobucket.com/albums/n205/seawolf06/Mallorywiringdiagram.jpg

Yes, this is the best illustration I have seen. Thanks!

Agreed, that is a good illustration. It will definitely be of help to others down the road.

Hope you don't mind that I saved the pic....

I wish I would of had that when I hooked my n20 up. It would have saved a lot of headache.

I don't mind, Dave. Just send me some bottle brackets or something. ;)

This is courtesy of another member here, but I deleted the PM and can't remember the name. If anyone has a pic of how they mounted the WOT switch on the LT1, that would help me. I think I just have a microswitch.

its an old pic...but you get the idea.

http://memimage.cardomain.net/member_images/6/web/474000-474999/474176_25_full.jpg

please excuse the dirty intake

EDIT: Can you explain how the microswitch works? Such as, when it's pressed in, it does this and when it's open, it does this. Thanks.

EDIT: Can you explain how the microswitch works? Such as, when it's pressed in, it does this and when it's open, it does this. Thanks.

Basically, the microswitch is routed in series with the nitrous circuit and is normally in the open position causing a break in the circuit. When the switch is pressed, the contacts in the switch close, creating a closed circuit that allows current to flow and thus causing the nitrous system to activate.

i mounted mine by the pedal. its very ****!!!

i mounted mine by the pedal. its very ****!!!

Do you have a pic of this? I am considering relocating mine there and wondering how people are doing it.

http://cemozone.com/lolita/images/n2o_system/wot_switch01.jpg
http://www.pancakea.org/DSCF0602.JPG

yep mines similar to rays. i used the a lockwasher and a few washers to space it out where i wanted it. also bent the little switch lever to get it right where i wanted it. il snap a pic next time i have a chance.

I got an idea now, thanks fellas.

So how could I use one to only work when it was "open", as in making a first gear lockout with it? Is there someway to wire the activation relay up to where when the microswitch is pressed, then it stops the system from arming?

Thanks to Robert56 over on LS1Tech

First description.
Just tap into your wire running to the pedal WOT micro sw. Remember, wire it opposite (you'll need a 3-prong sw from radio hack), meaning when pedal wot micro sw in 1st gear in mashed to the floor and making contact or closed, the 1st gear lock out micro sw on your trans is open. Then when you shift out of first gear the pedal micro sw acts as normal because both sws are now closed, or making contact. This is for a single stage set up. Wiring using this method in a dual stage set-up is a little differnt. Hope this makes sense.
Here is the pic for anyone reading along.
http://home.comcast.net/~weaver.robert/wsb/media/779908/site1056.jpg

Second description worded a little different.
It's a three prong type WOT micro sw from radio hack. You can wire it inline with standard wot under pedal, but it must be backwards, and thus three prongs instead of two. Meaning, when in 1st gear it will still break the connection going to pedal wot sw and as soon as you shift out of 1st then standard wot sw works as normal. This is for a single stage, and I have mine wired up to keep my 2nd stage out of 1st gear. Hope this makes sense.
Robert

Yeah, Dave, that's what I want to do. I'm still unclear as to how to wire it. What does he mean, "wire it opposite" with a 3 prong switch?

Yeah, Dave, that's what I want to do. I'm still unclear as to how to wire it. What does he mean, "wire it opposite" with a 3 prong switch?


It is a micro switch from Radio Shack....I might be wrong as I have not installed one, but the way I understand it is this switch has 3 terminal instead of 2 that way you can wire the switch as either a normal open or normal closed switch. The instructions that would come with the microswitch would clarify the order to wire the terminals.

You will want to wire the switch so the when it is pressed it breaks the circuit.

Ok, thanks, Dave. You're a great help.