I just purchased an Edelbrock heater and the instructions say to turn it on for short periods of time only. My question is how long does it take for this heater to bring the bottle temp. up to 85 deg. It is wired up to the ignition key, thus can only be turned on while the ignition is activated. It only takes me a few minutes to get from the staging lanes to the start line. Is three, four, or five minutes sufficient time. Average temp. during fall will be mid 60's at the coldest and winter will usually be in the low 50's at the coldest. If any of you have experience with this, please fill me in on the operating details.
Thanks,
Daniel

you need to have a PSI gauge........your nitrous needs to be at 850 psi to work well.....when i talked to NOS they recommended between 850-950 psi for max. performance............

so you need a guage to tell you what your psi is.... during the colder days i would open the trunk and let the sun heat up the bottle....summer time when really hot i would put an ice bag on it to keep it cool.........

believe me if it get to hot...the bottle just sprays out hot air......

the bottom line is you need your bottle pressure right at 850 psi.......weather using heater or ice........

I just installed a heater today..I got mine from dynaflow....It has a pressure switch that turns the heater on and off at a set pressure...it took about 5 minutes to get from 700 to 925. Im using a relay to power the heater. I would either use a pressure switch or a T stat

Would depend on the wattage of the heater, and also the ambient temperature (makes a very big difference).

I HIGHLY recommend that you get a pressure switch to control your heater. That way your nitrous pressure will be the same all the time.

If you don't, then you may find yourself tuning for a given bottle pressure, then on another run you will have higher pressure and run lean- I don't need to explain what happens then.

-Bob Cunningham

Thanks for the advice! My heater comes with a thermostat preset at 85 deg. I also have a pressure gauage. It reads about 800 on 70 deg nights and 900 on warm 85+ nights. The bottle is located in the bed of my El Camino. I also bought a thermal blanket for the bottle. Is it safe to keep the blanket on the tank at all times. I guess I will try to keep it on at least 5 minutes before I race. The thermostat should keep the bottle at 85 deg and not over heat it.
Daniel

You may have missed the previous post' points. You need to use the heater to keep a steady bottle pressure, not temperature. The whole key with nitrous is keeping your system tuned in properly and safely. If your bottle is a different pressure each time you make a pass (say 800 lbs vs 900 lbs), the richness or leanness of the system is effected. If the pressure is too high for your given supplimental flowing fuel pressure, you'll be lean and hurt parts. If the bottle pressure is too low for the given supplimental flowing fuel pressure, then your nitrous tune will be rich.

Bottle pressure and flowing fuel pressure are critical to check on every pass to prevent damage due to a lean condition.

I'm sure you instructions came with a recommended n20 bottle pressure as well as a FLOWING fuel pressure for each jet setup...follow it to the "T".

My bottle heater (by NOS co.)came with the thermostat control device that keeps the bottle at 85 degrees on cool days but I have noticed the big presure rise(1100) on the hot days when the trunk heats up! Rarely on the days when temp is below 85 have i had a problem maintaining 900psi even when the bottle gets low. I can however seen the advantage of the presure switch and if I was using more than a 150 kit I would want one!
Who makes and sells them?

Thanks. graemlins/beers.gif

http://66.70.17.170/speedshop/store/Scripts/

I have the NX heater and the pressure switch - but don't depend on them - mine stopped working last year and I looked at my gauge and the bottle was at 1350psi. :eek:

I took it out and now just use the heater manually and have a gauge on the dash. It was cold, like freezing temps here this week, and I filled a bottle with an extra lb to get a jump on the pressure. Even still it was 650 and I need 1000psi.

Took about half an hour to get it to 1000 with the bottle heater - took the other bottle and submerged it halfway into my hottub which was at 100F. That bottle was at 1100 within 2 mins, so I'm going to build a tank for the back of a truck with a waterbed heater and ac/dc transformer big enough for 3 or 4 bottles and keep it at about 90F-100F.

Your biggest problem with bottle pressure is the soleniod opening with too much it won't open with too little you will run fat.If the the nitrous flows you do not have too much pressure all kits are set up on the safe side so a little xtra pressure won't hurt you but when you floor it and you hit that button and that soleniod stays closed and you just shoot gas into the engine it's time to get out the marshmellows.Nitrous line pressure holds the plunger down the current field pulls the plunger up if theres too much pressure it can't overcome that and it stays closed. It's a good idea to not leave your bottle open when it's not in use that pressure wears on the plunger tip and swells it and resticts nitrous flow after a while and keeping the pressure off the line will also add longevity to you feed line.

Originally posted by 67johnny:
My bottle heater (by NOS co.)came with the thermostat control device that keeps the bottle at 85 degrees on cool days but I have noticed the big presure rise(1100) on the hot days Exactly why this is a bad idea.

Control to pressure, NOT temperature!

If you tune fuel delivery (jet size, fuel pressure) for 900 PSI then the next day you have 1100 PSI and don't realize it, don't come crying to me with your blown head gasket or melted piston.

http://www.nitrousexpress.com/productdisplay.php?sku=310&hdwt=31101&loc=101&dealer= is one pressure switch.

-Bob Cunningham

Hey that water bed heater is a good idea. They've got a thermostat built in too if I remember right. I've got some pond liner I could use to line the inside of a small hot box tank, would be easier than rigging something up with a hot water heater element. Sounds like a good project for this winter.

Originally posted by Bob Cunningham:
</font><blockquote>quote:</font><hr />Originally posted by 67johnny:
My bottle heater (by NOS co.)came with the thermostat control device that keeps the bottle at 85 degrees on cool days but I have noticed the big presure rise(1100) on the hot days Exactly why this is a bad idea.

Control to pressure, NOT temperature!

If you tune fuel delivery (jet size, fuel pressure) for 900 PSI then the next day you have 1100 PSI and don't realize it, don't come crying to me with your blown head gasket or melted piston.

http://www.nitrousexpress.com/productdisplay.php?sku=310&hdwt=31101&loc=101&dealer= is one pressure switch.

-Bob Cunningham </font>[/QUOTE]That is the switch that stopped working for me - so don't walk away from the vehicle with the heater on... if I had come back 10 mins later I would have blown the pop valve on the bottle!

You better have a huge alternator or many batteries to use the water bed heater...if the heater is just 2 KW you will kill a battery in no time