They were not hot to the touch

 

How old is the kit you have did you buy it new?

 

Anytime you have nitrous solenoid issues...get new ones..thats be benifit of nitrous vs turbo/superchager...if something fails its cheaper (usually) to fix the issue

If your solenoids are rated at 150, I'd assume they are the small solenoids....go with the big ones...like I said they open and close with more force to fight bottle pressure fluctuations.

Mount the solenoids elsewhere the coil brackets do get hot and can transfer heat to the solenoid.

Mine are mounted off my plastic intake manifold, The manifold never gets hot to the touch. You can see I use the big solenoids for the nitrous and fuel, and a normal small one for the purge

 

Ive got a proton kit, this is my second bottle threw it. Seem to be working fine now.
Test fire - YouTube

 

Get ride of it...my buddy had that kit and had a solenoid stick open..nitrous solenoid at that, froze his throttle partially open..They warrantied it, but he is having issues again with sticky nitrous solenoid

This is the proton kit that has the solenoids built into a little black box right? Those are small weaker noids and the box if thats what you have does nothin but hold in heat..

Two big noids and don't look back

 

Thanks for the help! When you say big ones, do you mean 250hp+ or 400+ or is this a good pick up?
Nitrous Outlet » Online Catalog » Nitrous Outlet .187 Fuel Solenoid
Nitrous Outlet » Online Catalog » Nitrous Outlet .125 Nitrous Solenoid

 

or PM me a link on what I need to pick up

 

Pretty much all solenoids are made by the same people. Peter&paul or Parker. Very rarely is a solenoid failure from a part defect. It's usually caused from user error.

That said, I like NOS solenoids. Induction Solutions sell very affordable nice solenoids as well

 

NX lightning series solenoids

Nitrous Express » Next Generation Nitrous Oxide Systems » LIGHTNING NITROUS SOLENOID STAGE 6 (.093 ORIFICE)

 

Any of these will work great