Removing a nitrous setup. Is it hard??

[MybishiGSX]

I'm kinda a noob when it comes to nitrous so go easy on me. I think it's called a direct port nos fogger system. Not sure if that's right or not. Anyway, how hard is it to remove? I've heard it's a pain in the butt. Would it be worth my while to pay and have someone else do it for me, or should i roll up my sleeves, buy some beer, and spend a saturday trying to tackle it myself? Keep in mind i've never delt with a nitrous system before. Can you guys point me in the right direction?

Thanks for the help!

 

[Colossus]

Direct port systems have their nozzles located underneath the intake manifold. There are two nozzles per cylinder, 1 for fuel and 1 for nitrous.

To remove it, you're going to have to also replace your intake manifold, otherwise you'll have 2 holes per cylinder intake a few inches away from the valves.

If you really want to remove it, which I don't know why you would, start easy. Take out the bottle, disconnect all the lines you can find and remove them. Remove the line from your fuel rail, remove the nitrous ecu, switches, and all the power and ground wires. Remove the purge solenoid (if you have one), and the lines for it.

Then, you're going to have to either replace your intake manifold, or weld the holes closed in it. Why ruin a perfectly good direct port intake manifold? Hell, I'd buy it off ya if you really don't want it. So, you'll need a good replacement, and a good replacement gasket also.

I'd say grab a good keg or so, and have it at. Or pay someone if the intake manifold is to much.

Nitrous is fun, hate to see ya losen it man. Especially a direct port.

 

[DSMJim]

Originally posted by Colossus
Direct port systems have their nozzles located underneath the intake manifold. There are two nozzles per cylinder, 1 for fuel and 1 for nitrous.

This is partially correct. There are two lines per cylinder but they run though one nozzle into the intake manifold so there is only one hole per runner. (It mixes as it shoots out the nozzle) Also they are not always on the underside of the manifold, sometime on top as well.

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Then, you're going to have to either replace your intake manifold, or weld the holes closed in it. Why ruin a perfectly good direct port intake manifold? Hell, I'd buy it off ya if you really don't want it. So, you'll need a good replacement, and a good replacement gasket also.

This is correct. Don't use something to plug them as it will leak. Replace the manifold entirely and sell the setup already to go.

Just so we are on the right page, Direct Port will have four nozzles one per runner after the throttle body directly in the intake manifold. Is that what you have? Or do you have only one nozzle before the throttle body?