TNT nitrous solenoid locks up after 1000 psi
11-13-2010, 03:34 PM
#1
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TNT nitrous solenoid locks up after 1000 psi so i was at the track today..
presure went up to about 1050psi than it wouldnt spray anymore..had to get the pressure to 950psi for it to spray...
what can be causing this?
presure went up to about 1050psi than it wouldnt spray anymore..had to get the pressure to 950psi for it to spray...
what can be causing this?
Last edited by a4ls2goat; 11-17-2010 at 12:32 PM.
11-13-2010, 08:07 PM
#2
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That is usually a safety thing in the noids so that they don't inject to much nitrous. Someone correct me if I am wrong, but when you have high pressure, it effects the initial hit and can lean out your system, therefor causing unwanted detonation.
11-16-2010, 11:18 PM
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i'm willing to bet its a weak ground. I had the same problem when i grounded my solenoids to the top of the shock tower. I moved the ground to the battery and had no more issues.
11-16-2010, 11:21 PM
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i heard about this... how long can the ground be though? frm what i know it cant be more than 3ft long..correct me if im wrong
11-16-2010, 11:39 PM
#6
Your solenoids coil may be getting week. Or the piston may have a large nipple wore into the piston causing it to sit lower on the seat. It could have a bad ground or not the currect size wire to support amperage.
Check out the solenoid How to Thread I posted and check the solenoid out.
Start with running the power and ground start to the battery and see if it opens under pressure. If it does not then check the resistance value of the coil and the piston wear.
Also make sure your bottle pressure gauge is not off making you think its a lower pressure than it is.
Feel free to hit me up with any questions.
Dave
Check out the solenoid How to Thread I posted and check the solenoid out.
Start with running the power and ground start to the battery and see if it opens under pressure. If it does not then check the resistance value of the coil and the piston wear.
Also make sure your bottle pressure gauge is not off making you think its a lower pressure than it is.
Feel free to hit me up with any questions.
Dave
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11-17-2010, 09:07 AM
#8
What size solenoid?
Possible. You can hook a multi-meter up and see what the voltage is. Make sure your wiring is correct and un-hindered. If that is fine, then open the solenoid and inspect the parts. Dave's write up is nice on that subject.
11-17-2010, 09:43 AM
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I have a 3 friends of mine that run a ZEX kit and Every one of them have told me that the Nitrous silonoid will not open up if they have more than 1050 on the pressure guage. They have to either purge it to get the pressure to drop or wait for the bottle to cool down. So then are they all full of $hit or is there a safety mechanism that does not allow high pressure? I run an NX kit and there for do not have these kinda issues! Even my NOS kits have not had these issues.
11-17-2010, 11:22 AM
#13
10 volts and 50 amps will most likely open a solenoid, 13.5 volts and 0.5 amp will not.
To the op, I have had NOS, NX, Nitro Daves and Edelbrock solenoids open at over 1100 psi so if your solenoid is fairly new it should open. Check your wiring and make sure you have an absolutly good ground and all connections are tight. Also, if you have small super powershot size solenoids they don't open sometimes under alot of pressure.
thx guys
11-28-2010, 08:54 PM
#19
Both things are related. You don't "inject" amperage to any electric device. You feed Voltage and then the device will draw the amperes it needs to do its job.
Noids are rated at X Amperes from factory. If you supply the correct (rated) Voltage, they wil draw the correct amperage everytime. More amperes means you have a bad installation, which can be:
1- Too small wire gauge / Too long wires (or a combination of both).
2- Weak/undersized relay
3- Bad electrical connections
4- Bad ground
5- Bad or faulty switches, pushbuttons, etc.
When you have a correct instalation, the voltage will drop a few volts when system is engaged, but only for an instant then it will stabilize to the supplied voltage.
If the installation is not good, the voltage will drop when system is engaged and remain low. Some devices CAN compensate the voltage drop by drawing more amperes to complete their job. But this isn't good. Your coils will wear and they'll be weak soon.
