Hey folks,

Those of you who have a pressure gauge, can you chime in with information regarding how much presure drop you're seeing when you're on the juice?

The more detail the better. Startign pressure, shot size, bottle size, brand of heater (if any), how long you were on it, and ending pressure would be awesome.


What I'm considering, is using two (or maybe three) nitrous bottles to reduce the rate of pressure drop, rather than a nitrogen push system. The pressure drop could be a good thing if it was at the appropriate rate, like 15% drop over the course of a run.

Steve

 

on the 240 shot I would start at 1150 and be at 975-1000 at the end.

 

I wonder if a 10 lb vs 15 lb bottle matters? I'm thinking a 15 lb would have more mass and the tempature would drop less?

Come to think of it.. did it matter whether the bottle was full or empty?

Steve

 

Im sure the 15 lb would have less pressure drop. And to me it always seems as if I get less pressure drop when I have about 7-10 lbs in a 15 lbs bottle. I think its because the head space above the liquid nitrous that contains the gas pressure has a larger volume.

 

With my experience the 15lb suffers less pressure drop. I have tryed a 100 shot with both a 10 and 15 lb bottle. If I remeber correctly. Fresh bottle at 1050 to start the 10 would got to about 950 by the end just enough were the Nx pressure switch would sometimes let the heater kick back on and sometimes not. right on the enge of 950. With the 15lb bottle it ends up at about 975-1000 after the run and the bottle heater will not kick on till fter the second run. I hope this helps a little.

 

Yeah, it sure does. I mapped out the three datapoints you guys have given me, and I'm thinking with two or three 15 lb bottles, I could get the pressure drop down to about 4%. Considering the engine is heating up from use, that seems reasonable to me.

One benefit I see to this setup over a N2 push is convienience. I just open all three containers, use it until they run out, then go fill them at one shop.