legacycentral bbs

Tonight, my friend and I were out cruzin around in his 90 5.0. He's got some goodies on it that include the bottle. We found some really cool guys who we had met before and raced. The guy owns a Ws6. We go from a stop about three times, but the fag kept jumping the gun. This shit isn't fair. Anyways, we were spraying the 100 pills for a while and then tried the 150. It made hardly any difference. My question to you is, will the bottle heater help us get more punch out of the car? It was freezing ass cold and we were just spraying cold.

If you heat the bottle, I think it will just make it easier for the gas to move, so it will move more quickly from the bottle to the intake. I doubt that the heat from the heater would lessen the effect of the nitrous.

It's like those C02 dusters. They work better when the can is warmed up, and as it's sprayed, the can get's supercold. I think it'd be a very similar principle.

I doubt the heater will make the 150 shot feel faster. That could possibly be any number of issues.

One could be that you simply have improper fueling, and on the 150 shot, your just running lean to the point of being detrimental to the performance. OR you could be running to rich, and that's causing problems.

Another idea, is that the plugs are not properly matched. I don't know which way you go, but you could be to hot or to cold, and your actually blowing out the spark. That is probably not as likely, but it's a possibility IMO.

Nitrous pressure should be kept consistent to obtain optimum performance. All NOS systems are designed to work best with a bottle pressure of 900-950 PSI. Pressure is determined by the amount of nitrous contained in the bottle and temperature. The chart below shows what happens to nitrous at various temperatures. Accordingly, it's a good idea to use a NOS bottle heater and/or blanket. Likewise, maintaining consistent line filling is important...which is why most racers use an NOS purge valve to release nitrous vapor from the feed line. This provides liquid nitrous to the inlet of the solenoid(s) for better consistency and repeatability.

Bottle Blankets
Insulating the bottle helps maintain pressure by keeping heat in the bottle when it's cold, or heat out when it's hot outside. The blankets are made of a rugged, easily cleaned Nylon outer shell with insulation. It's also an excellent "dress up" accessory - and perfect for "covering" battle-scarred bottles.

BOTTLE TEMP. °F BOTTLE PRESSURE (PSI)

-30 167

-20 203

-10 240

0 283

10 335

20 387

32 460

40 520

50 590

60 675

70 760

80 865

97 1069

Or just leave the bottle heater on overnight like that dude with the Maxima.

Oh hell no. XD

Let's not have a repeat of that, okay?

come on, it's only a mustang, at least it'd be funny

Another thing is as you use the NO2 up, the pressure drops. I can use a bottle up in about 20 runs using a 50 shot. So if you were using it and using it, and then shifted to a larger shot but it was near empty, it wont do crap.

Maybe he should consider runnning 2 bottles. What type of system is he running? Wet or dry? DPI/fogger/plate?

actually as long as some liquid remains in the bottle, the pressure will stay the same, then drop off a cliff when there is nothing but gas left.

A blanket will be good for nothing...it won't add any heat when its cold outside, and will actually prevent the bottle from warming back up when it discharges, which makes it cold. Useless.

A heater on the other hand would work very well...I don't know if the heaters have PTC elements (single temperature, no variable setting available, no thermostat) but that would be nice, since it is very difficult for those to malfunction

The heaters are constant temp. No thermo.

Alot of people when they first step up to the squeeze, forget to turn the bottle and the heater off so they come out to dead batteries.

Get a heater and an auto valve.

legacycontinues wrote:Maybe he should consider runnning 2 bottles. What type of system is he running? Wet or dry? DPI/fogger/plate?

Wet system. How would 2 bottles help?

if he had 2 bottles he wouldn't have to refill as often.

When rejetting the NOS I do believe you have to rejet the fuel side to match the NOS side. Did your friend add a stand alone fuel pump or does he have a high flow with multiple outlet FPR with "wide open mode" for the hole shot?

He has the multi outlet FPR with a Walbro to back the pressure. I see what you're sayin about the bottles.

Sounds like he is doing it right. I take it he is running high temp plugs...Maybe an MSD ignition with a blaster coil?


Got one of these?

http://www.holley.com/HiOctn/ProdLine/P ... 504-5.html

He has a Votech or something one of those and a MSD blaster coil.

Perhaps a Motech...they make good stuff. I hope this has shed some light on the problem. I don't know crap about turbos but I know a thing or two about juice.

Has he ver dyno'd his stang? Got any info on it? I used to have a very sweet 86 fox body but I wrecked it at the track. I was running dual stage NOS.....and like Yukon says...."power is NOTHING without control."

He's never dyno'd but has every bolt on that you can imagne and a set of dart heads waiting with some long tubes come summer.

Dart heads for the 5.0 are sweet. I ran a set of trickflows and they got the job done nicly.

I remember when I first lowered it and was running through the gears the rear floorpan would hit the top of the diff. I had to by a special bumpstop that eliminated that.

Damn I miss that car.

I had a 89 5.0. Rebuilt the engine. The car was the cleanest fox I've ever seen. It had one scratch on the entire body. It was blue with the GT lower kit silver. I had some goodies on it and I loved the torque. Puts the Legacy to shame .

So you are a big fan of the fox too. Mine was an old FL state troopers car. I'm getting all chocked up over her.....