Nitrogen push instead of heaters(warning: big pics)
Nitrogen push instead of heaters(warning: big pics) <img src="http://www.torquehorsepower.com/car/nitrogen.jpg" alt=" - " />
<img src="http://www.torquehorsepower.com/car/nitrogenrear.jpg" alt=" - " />
Just got these pics uploaded and thought I would share again. Its a small nitrogen bottle and regulator used to pressurise the nitrous bottle. Works great and only takes a few seconds to dial up the desired pressure. There is little pressure drop during a run and you can really hear the nitrogen squeeling as it is being pushed into the nitrous bottle as the nitrous is being used. This would not be for everyone. You have to have the nitrogen bottle filled and the regulator is about $300. I get both from work for free <img border="0" title="" alt="[Big Grin]" src="gr_grin.gif" />
<small>[ July 27, 2002, 01:43 PM: Message edited by: 383LQ4SS ]</small>
<img src="http://www.torquehorsepower.com/car/nitrogenrear.jpg" alt=" - " />
Just got these pics uploaded and thought I would share again. Its a small nitrogen bottle and regulator used to pressurise the nitrous bottle. Works great and only takes a few seconds to dial up the desired pressure. There is little pressure drop during a run and you can really hear the nitrogen squeeling as it is being pushed into the nitrous bottle as the nitrous is being used. This would not be for everyone. You have to have the nitrogen bottle filled and the regulator is about $300. I get both from work for free <img border="0" title="" alt="[Big Grin]" src="gr_grin.gif" />
<small>[ July 27, 2002, 01:43 PM: Message edited by: 383LQ4SS ]</small>
Re: Nitrogen push instead of heaters(warning: big pics) Just realized these are some old pics. I have a new nitrogen bottle now that is a 10 lb bottle. Fits in the brackets correctly and looks alot better. I will update them soon.
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Re: Nitrogen push instead of heaters(warning: big pics) So it puts pure nitrogen into the nitrous bottle to replace the nitrous that is used? The nitrogen can't be physically bigger, but is it denser as a liquid and that makes the pressure increase?
Re: Nitrogen push instead of heaters(warning: big pics) Lol, sorry for the poor explanation...the advantage of this setup is three fold.
1) there is little or no pressure drop during a 1/4 mile run. Works great for larger shots of say 200+. I used to see up to 225 psi pressure drop during the course of a run in the winter. That translated into less hp and less consitant shot. On a dry kit pressure = HP.
2) No wait time for bottle heaters to get bottle up to pressure. Just open the nitrogen valve, dial up your desired pressure on the regulator and your set. Go make your run! Sucks waiting for your bottle heater to make pressure.
3) No drain on electrical system for heaters. With the large pressure drop of the 200 shot I used to run two heaters in the winter to get the pressure back up quickly.
The way it works: Imagine a full bottle of nitrous as a bottle of water. Its liquid when stored at the correct pressure. The nitrogen, which always remains a gas, is plumbed to the port at the top of the nitrous bottle and pushes down on the nitrous, pushing it up the pickup tube and out the bottle. As nitrous is exiting the nitrous bottle...nitrogen is constantly replacing it maintaing the pressure set with the regulator. It works very well and makes for consistant easy operation. Nitrogen is is completely inert, will not mix with the nitrous. You just have to completely purge the bottles before each refill.
<small>[ July 28, 2002, 09:43 AM: Message edited by: 383LQ4SS ]</small>
1) there is little or no pressure drop during a 1/4 mile run. Works great for larger shots of say 200+. I used to see up to 225 psi pressure drop during the course of a run in the winter. That translated into less hp and less consitant shot. On a dry kit pressure = HP.
2) No wait time for bottle heaters to get bottle up to pressure. Just open the nitrogen valve, dial up your desired pressure on the regulator and your set. Go make your run! Sucks waiting for your bottle heater to make pressure.
3) No drain on electrical system for heaters. With the large pressure drop of the 200 shot I used to run two heaters in the winter to get the pressure back up quickly.
The way it works: Imagine a full bottle of nitrous as a bottle of water. Its liquid when stored at the correct pressure. The nitrogen, which always remains a gas, is plumbed to the port at the top of the nitrous bottle and pushes down on the nitrous, pushing it up the pickup tube and out the bottle. As nitrous is exiting the nitrous bottle...nitrogen is constantly replacing it maintaing the pressure set with the regulator. It works very well and makes for consistant easy operation. Nitrogen is is completely inert, will not mix with the nitrous. You just have to completely purge the bottles before each refill.
<small>[ July 28, 2002, 09:43 AM: Message edited by: 383LQ4SS ]</small>
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Re: Nitrogen push instead of heaters(warning: big pics) It doesnt. Its plumbed into a seperate port that all the NOS Superhighflow valves have. I installed a shreader valve there. When the nitrogen enters its going directly to the top.
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Brett Foote
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Re: Nitrogen push instead of heaters(warning: big pics) how much nitrogen do you use? how much does it cost to fill the bottle? I always thought of running two bottles with heaters, to a y block myself.
Re: Nitrogen push instead of heaters(warning: big pics) For a full 15 lb bottle I use another nitrogen bottle that is the equivelent of a 10lb nitrous bottle. Its serviced to 2500 psi and regulated down to about 1150. I can push the entire 15 lbs out, put in another 15 lb nitrous bottle and push most of that out as well.
I fill my own nitrogen bottles at work for free so it works out great. You can get them filled at a welding supply shop for about $10-15.
Again... this is overkill for a street car. The main reasons I made this and use it is beacuse
1) it was free
2) I didnt like the drain on my electrical system with the heaters, I have some serious stereo equipment as well.
3) I service it myself for free.
4) No wait time for bottle pressure to come up
5) never a problem in winter
6) no pressure drop during a run
99% of people using nitrous will not have a need for something like this. I just wanted to share the possibilities of alternate methods.
I fill my own nitrogen bottles at work for free so it works out great. You can get them filled at a welding supply shop for about $10-15.
Again... this is overkill for a street car. The main reasons I made this and use it is beacuse
1) it was free
2) I didnt like the drain on my electrical system with the heaters, I have some serious stereo equipment as well.
3) I service it myself for free.
4) No wait time for bottle pressure to come up
5) never a problem in winter
6) no pressure drop during a run
99% of people using nitrous will not have a need for something like this. I just wanted to share the possibilities of alternate methods.
Re: Nitrogen push instead of heaters(warning: big pics) Got a quaetion as well. I noticed the regulators you have on your setup look very similar to a set of regulators I have an old Oxy/Seteleen tanks at home. Is that something that could be used for this application?
Re: Nitrogen push instead of heaters(warning: big pics) Ls1290.....I usually change the bottles after about 5 runs just to ensure nitrous does not run out during a run. Thats only at the track. On the street Ill run a bottle till it doesnt hit anymore. Nitrogen wont hurt the engine...it just supresses ignition a bit and runs very rich. You can really tell when you are getting nitrogen. Ive only done that once though. I can usually get it down to less than 3lbs before swapping bottles. A bottle with 3lbs in it that is also pressurised with nitrogen to 1150 can easily be transfreed to another bottle that has a partail fill as well. Just chill the recieving bottle and hook up a AN-4 line between the two and transfer the 3lbs into the other bottle. Its ok if a little nitrogen gets in the new bottle because it will help bring the pressure up and stay up. Keeps you from dropping all the pressure in the nitrogen tank just to bring a new bottle up to operating pressure.
LilSS...welding regulators wont work. The operating pressure of those is very low. If you hooked them up to a 2500lb source the gauges would blow out and it wont regulate that high. It has to be an INERT GAS REGULATOR capable of regulating 3000 psi down to 0. That valve is expensive but can be bought at welding supply stores or places like McMaster or Grainger. Do not try this without the correct setup. It could cause some serious problems, like pressurizing your nitrous bottle to 2500 psi in a flash.
LilSS...welding regulators wont work. The operating pressure of those is very low. If you hooked them up to a 2500lb source the gauges would blow out and it wont regulate that high. It has to be an INERT GAS REGULATOR capable of regulating 3000 psi down to 0. That valve is expensive but can be bought at welding supply stores or places like McMaster or Grainger. Do not try this without the correct setup. It could cause some serious problems, like pressurizing your nitrous bottle to 2500 psi in a flash.
Re: Nitrogen push instead of heaters(warning: big pics) If the bottle runs empty all you should get is nitrogen gas. Same thing happens when a N20 bottle runs empty. Where is your pressure relief pop-off valve and blow-down tube? NHRA require it.
Re: Nitrogen push instead of heaters(warning: big pics) Gold Pheonix...The blow down tube is there. Its the big fat flex line that goes into the bulkhead fitting thats attached to the rear deck...right in the middle of the lightening hole on the top of the nitrous bracket.
