Hello everybody,
I’m piecing together a n2o kit. I recently ran across a set of solenoids; however, the guy selling them had the covers chromed, and didn’t bother to mark which one was the n20, or which one was the fuel solenoid. Both seem to be identical in every way. Is there a way I can test them to find out which one is which?
Thanks,

 

mine are labeled hehe sorry i cant help u...

how do they look though at least? chromed out

 

they look nice, but thats about all they're doing right now

 

i just busted my kit out thats still in the brand new wrapping...

the nitruous one i believe has like a washer and a screw into the top? does any of yours have that?

 

they have a nut holding the cover on. I think they are NOS solenoids.

I've been doing some reading and it looks like fuel solenoids draw less amps.

What is the best way to test this?

 

If the solenoids are NX then the N2O one will have 3 openings (In, Out, Purge) and the Fuel sol. will have 2 (In, Out) dunno about other brands but I'd say they're prolly the same.

 

Thanks for the info. They are NOS brand solenoids. I think "PowerShot." They only have in and out. They look just like the ones on NOS's web site. This is where I got the idea to check the amps, just not to sure what the best way to do this would be.

 

You need to open the solenoid and measure the orifice. The larger one will be the fuel. For your info, you can use a nitrous solenoid for fuel, but you cant use the fuel solenoid for nitrous. The fuel solenoid draws less amps, becuase it can get away with using a smaller coil. Its easier to open against lower fuel pressures (6-60psi) then the nitrous pressures (700-1100psi). If you have any more questions, email me and I can help you figure it all out.

 

Told you Dennis, you should of bought an NX kit J/K

Hurry up and get that thing squared away and wired up, so we can go racing

Jody J.

 

You can't use a nitrous solenoid for fuel, at least not for long. The plunger in a nitrous solenoid is made of a material called RTM which will not tolerate exposoure to gasoline. That is why on plate systems you don't want to mount the solenoid lower than the plate. The fuel solenoid use a seal made of viton which is desinged to handle the fuel.

 

If you are using any of the NEW solenoids, which have been on the market for at least 7 years, then the nitrous solenoid can be used for fuel. The material on the plunger, if its a good solenoid, is made from teflon, which handles fuel just fine. Have done it for years.

 

Teflon is a difrent subject. Yes it can be used for fuel but it also has a problem sealing. Not all new solenoids come with teflon plungers. Teflon doesn't have the memory of the RTM so if any debris get in the soenoid between the plunger and the seat the solenoid will not seal and can leak. Teflon is great on race cars and progressive kits but not always the greatest idea on a street car. But telling some one they can run a nitrous solenoid as a fuel solenoid with out specifying the fact that it has to be a teflon plunger could lead somne one to ruin a plunger not to mention the headache when the can't figure out what is wrong with there nitrous kit.