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Old 04-06-2010, 07:32 PM
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Unable To Get Nitrous Bottle Refill

So I have a 2008 GMC Sierra 1500 5.3L. Just ordered a Zex nitrous kit for my truck, just figured out one problem, closest place to get bottles filled-49 miles away. So I work at a repair shop and we use Airgas as our supplier for shop gasses and was thinking of filling my own bottles. I read some of the other posts on self filling tanks and defenetly think that I can do it myself.

(I do not have my kit yet)

So my questions are:

1. What are the actuall fitting sizes on the bottles and what should I use for hoses to perform the refills due to the high pressures.

2. What grade gas should I get from Airgas?

Thanks, Matt.

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Old 04-06-2010, 07:49 PM
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Check with Nitrous Express (NX), they have a transfer line kit that includes the teflon braided line, an inline nitrous filter and a shut-off valve, along with a bottle stand to invert the bottle, you have to invert the mother bottle to get liquid nitrous out of it if the mother bottle doesn't have a siphon tube inside that reaches to the bottom of the bottle. Line size is either -4 or -6 AN depending on what your in-car bottle has.

Don't spend extra to get medical grade nitrous. Race grade has sulfur dioxide added in trace amounts to keep people from huffing it, medical grade is pure and you need a license to have it in your possession, but it won't make the car any faster than the race grade Nitrous+.
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Old 04-06-2010, 08:01 PM
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Thanks man, I guess I will just order up a 100 lb tank tomorrow and wait to see what the fittings are that come on the valve with the mother tank to see what I will need for adapters.
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Old 04-07-2010, 01:27 AM
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If you want to gravity/siphon feed fill your bottle from the Mother bottle without a nitrous pump you need to freeze your nitrous bottle in a freezer prior to filling it.

Once filled up if you want to use it immediately you must heat the bottle in hot water or with a nitrous bottle heater to 85F (900 PSI bottle pressure) before use. Do not heat the bottle with a flame. A big picnic cooler full of 100F water works great.
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Old 07-18-2013, 10:35 AM
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Mother Bottle

so where can you find/buy a 100lb mother bottle? i want one to fill at my house
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Old 07-18-2013, 11:14 AM
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Add up what the total cost of running nitrous (mother bottle,, filling pump and buying the nitrous oxide)
for over 1 year use. Soon very soon you will exceeed the cost of supercharging your truck motor and
YOU NEVER WILL OWN THAT POWER. You will always be paying and paying for power.

Consider supercharging instead of nitrous and own the power.
A truck is a good vehicle for this. The results are well worth the investment and you will own it.
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Old 07-18-2013, 02:24 PM
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two weeks ago they did a step by step on powerblock tv. maybe you can order that show. i found this on youtube

https://www.youtube.com/watch?v=EcyKjhkvvU8
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Old 07-18-2013, 09:56 PM
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Quote:
Originally Posted by F-BIRD'88 View Post
Consider supercharging instead of nitrous and own the power.
A truck is a good vehicle for this. The results are well worth the investment and you will own it.
I second this sentiment. I supercharged my truck on the advice of a fellow standing in line at the dealership parts counter. The dealership had a TRD supercharger on display. I had 3000 miles on my new truck and was considering spending $2000 on wheels and tires.. The fellow said spend $3000 on the supercharger, headers and the installation. "You'll never regret it." 200,000 miles later, I still do not regret it.
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Old 07-19-2013, 12:57 PM
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Mother Bottle

thanks for the advice.. but i already am supercharged, and i already have a ZEX system on my car. im tired of taking my bottle 45 miles to get it filled. so thats why i want a Mother Bottle. any ideas where i can get one at?
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Old 07-19-2013, 01:33 PM
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You get them from your local Airgas distributor or equivalent. But you'll need to get the fill station pump, just hooking your small bottle to the larger one and letting the pressure differential fill it isn't very effective.
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Old 07-19-2013, 01:57 PM
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Quote:
Originally Posted by killeratrod View Post
two weeks ago they did a step by step on powerblock tv. maybe you can order that show. i found this on youtube

https://www.youtube.com/watch?v=EcyKjhkvvU8
it was on trucks and you can watch it online at powerblocktv.com
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Old 07-19-2013, 02:00 PM
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Quote:
Originally Posted by F-BIRD'88 View Post
Add up what the total cost of running nitrous (mother bottle,, filling pump and buying the nitrous oxide)
for over 1 year use. Soon very soon you will exceeed the cost of supercharging your truck motor and
YOU NEVER WILL OWN THAT POWER. You will always be paying and paying for power.

Consider supercharging instead of nitrous and own the power.
A truck is a good vehicle for this. The results are well worth the investment and you will own it.
very true, problem is, s/c big up front cost. most people don't have 3000.oo to just plop down on a blower and all the stuff that goes with it..
500.00 and 39 buck bottle fills are easier to budget..
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