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Nitrous Line, Figuring Out The Size?

This is a discussion on Nitrous Line, Figuring Out The Size? within the Nitrous forums, part of the LSx Technical Help Section category; So I bought my Vette with Nitrous already installed in it but I am trying to add a purge kit ...

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    Junior Member ViperJ's Avatar
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    1999 C5 Corvette 6spd

    Nitrous Line, Figuring Out The Size?

    So I bought my Vette with Nitrous already installed in it but I am trying to add a purge kit since mine didn't have it installed. Is there an easy way to tell what size my nitrous line is? The guy built a custom kit so I can really look online and find it?

    Thanks
    1999 Corvette C5
    4.10 gears, 4 Point Roll Cage, Borla Exhaust, CCW wheels, Custom Cam and Ported Heads, Hi-flow cats, Long Tube Headers, Lowered 1.5", LS6 Z06 Clutch/Flywheel, Vortex Intake, Wet Nitrous Setup, Z06 Intake Manifold 11.3@123 mph

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    Nitrous Tuner LS2Tuner's Avatar
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    More than likely it is a -3 or -4.. Put a wrench on the tube nut and tell me what size fits it and I'll tell you weather you have a -3 or -4.
    What ever you do I seen you mention Zex in your other post by a Nx purge solenoid so you don't end up with a huge ugly solenoid for your purge.
    Don't be afraid of the bottle!!! Be afraid of your tune!!!

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    Junior Member ViperJ's Avatar
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    Thanks man, the guy I got the car from sent the rest of the instruction manuals looks like it is -4

    Quote Originally Posted by LS2Tuner View Post
    What ever you do I seen you mention Zex in your other post by a Nx purge solenoid so you don't end up with a huge ugly solenoid for your purge.
    I guess I am confused, your saying don't go with ZEX purge kit?

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    Nitrous Tuner LS2Tuner's Avatar
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    Quote Originally Posted by ViperJ View Post
    Thanks man, the guy I got the car from sent the rest of the instruction manuals looks like it is -4



    I guess I am confused, your saying don't go with ZEX purge kit?
    Yes I don't care for them at all!
    Way too big and bulky. It's purpose is ONLY to purge the line. The NX purge solenoid is about a 1/3 of the size.
    Unless they have finally came out with a new design that I have not seen. I had someone buy a plate kit from them 3 monthes ago and bought a purge solenoid and I installed it.
    And as ALL there other solenoids I have dealt with you can tap or hit them and they make a SCARY rattle noise.

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