How much current do the NX fuel and nitrous solenoids draw? The reason I am asking is I had a 20 amp fuse going to the relay for the solenoids and after activating them 1 time the fuse blew. I don't just want to stuff bigger fuses in there without knowing. I was hoping someone could tell me so I don't have to pull the nozzle out while I do a current test.

 

Anybody know?

 

From the book "How to Install and Use Nitrous Oxide" by Joe Pettit:

Let me know if you want to borrow that book sometime. It has some good info, and even includes an LT1 camaro specific install.

I know this may be a dumb question, but have you double checked all the relay connections? Accidentally switching a ground and load connection on the relay would pop a fuse pretty quick

 

i put a 30 amp fuse inline with my kit, and everythings well so far...

 

Thanks, that is what I was looking for.

Timberpup, I will double check my wiring tonight when I get home.

 

id run both nitrous and the fuel selenoids off the same 40 amp relay, and put a 30 amp fuse inline with that. that way, if the fuse/relay goes out, you wont have anything still working. this is the way i set mine up, but you can do whatever you want. i just would make sure you dont use seperate relays/fuses for each selenoid...you dont want the nitrous selenoid open when you blew a fuse on the fuel.

 

That's the way that I have it wired right now is both solenoids through one relay and a fuse feeding the relay. I just had a 20 amp fuse in there and that blew, so I wasn't sure how big of a fuse to put in there. I was getting ready to put my DVM in line and activate the solenoids and see what is the current draw.

 

i know it's better to have a fuse, but does the actual nitrous install sheet for the kit say to use a fuse?? just curious, i'm pretty sure mine said to wire up the relay directly to the battery....... I'm just wondering if i'm correct.

BTW, it's better to have a fuse whatever they say anyway........

 

My instruction sheet says to wire it directly to the battery, but I always like to use fuses.

 

I was planning on running mine on seperate relays, but you make a good point. :scratcheshead:

Time to rethink a bit... Basically I wanted to lessen the current draw through a single relay. Both mine are 30 amp relays. What about using the fuel relay as the trigger (switched input) for the N2O relay? There would be minimal added draw to the fuel relay which has plenty of room to spare anyway, and if the juice to the fuel relay shut down, the spray couldn't happen...

 

Mine are run off a single relay and fuse as well. I think I tried a 20-amp fuse and it blew. 30-amp has been working fine.

 

Why would you run a fuse in line with a relay? The relay acts like a fuse and will blow if the draw is over the rated amperage of the relay. Running a fuse in line with a relay is redundant.

BTW - NX shipps a 30 Amp relay with their kits so I would not use anything less than that. No big suprise that your 20A fuse blew.

 

Relays don't blow like fuses, the contacts melt or weld together when they are overloaded. This could potentially cause your solenoids to always be on if the contacts welded closed. That's why you want a fuse, more or less for a safety measure.

 

Maybe thats the way things are supposed to work, but i just had a melt down. I took my car in to have some neons put on, and i went to pick it up that night. The guys couldnt even pull it out of the garage before huge clouds of white smoke started pouring out of my hood. it was minutes away from starting a car fire. one of the wire i ran for the nitrous was red hot. I had to pull every wire i ran out of the aux battery post. it cut the hell out of my hand and melted all my wires together. paint was actually burnt off the sstrut tower. and one of my relay that was "supposed" to blow didnt and the wires were still live. theres no point in taking chances with something like that. what if i wasnt there? the car might be gone. id rather have the peace of mind knowing that i have fuses in there as redundant as it may be. i think a couple 4 dollar fuses is better than the pain of trying to claim a total lose. agree? do whatever you want though. and i know what im doing with wiring pretty much anything. and those guys blamed it on me...and i just spent about 100 bucks on crap that i had already bought, not to mention the lost time! And time is money!

 

And dont ask why my fuses didnt blow before because i dont know. those guys at Buzz-Off auto in troy really messed up my car and did nothing to fix it. They just went home. thats great and all, but thats the last itme i go there. he drilled a hole in my firewall and left it bare metal with a wire through it. he said he did that all the time. talk about some ghetto A$$ $hit. i hate stupid ignorant people. i shouldve kicked his A$$!!!

Scott