RWD_cossie_wil

iTrader: (9)

You are right, it's a great bit of kit, but very limited for most people IMHO, shame the gas is so expensive or it would make a lot of sense

Chip

iTrader: (3)

Yes, but you checked it wasnt over fuelling at 900psi of nitrous pressure

then used the same ratio jets at 500psi, and complained it wasnt as powerful, I wonder why


Nitrous instalation advice from a decent company like WoN tries to be idiot proof, but come on mate, there is only a finite amount of idiocy they can take into account, they cant help it if somone invents a bigger idiot than they allowed for

percybigun

nah its all about this ego thing of trying to look big and hard, rewording things to make others look thick, swearing/flaming at others on here unprovoked, trying to get a reaction when all your really doing is make yourself look like a keyboard warrior busting for a fight who needs anger management

Jim Galbally

overfueling for what to, the AFR for atmospheric air is different to that of nictours oxide. thats why people jet them based on static tests etc. rather than hook up AFR gauges. as if you set it to 13:1 it'd probably fucking explode

where's you take the car to get this work done by the way?

RWD_cossie_wil

iTrader: (9)

Ok, never really having been involved with nitrous, obviously the pressure drops as the bottle runs lower, how do you get round this? I assume bottle heaters are there to try and keep the pressure constant?

Chip

iTrader: (3)

Nope, pressure doesnt drop based on volume, although you do get a slight dip during the quarter, it will recover ready for your next run

RWD_cossie_wil

iTrader: (9)

Don't really understand that? How can the pressure not drop when the volume is decreasing and the temp is constant?

Chip

iTrader: (3)

Because it doesnt, as its pressurised and the thing that maintains the pressure is the temperature not the volume (well until the point its all gaseous obviously)

CossieRich

iTrader: (1)

Chip

can you stick 150 bhp jets on my cossie without a drama?

Chip

iTrader: (3)

No idea, dont know anything about your cossie, fuel pump might not cope with it for example!

CossieRich

iTrader: (1)

go read my project in the resto room and then you will know.

Fuel pump is good for 600 bhp at the correct voltage. 044 job

Chip

iTrader: (3)

Ok mate, when im in work and got more free tiem I will read your thread

CossieRich

iTrader: (1)

Sweet

JonnyBravo

Jetting your nitrous setup on a cold bottle is risky business IMO unless you jet it very rich that is which tbh is fooking pointless.

Air temps change WAY to much and the sensible way to do it is with a bottle heater with a pressure controlled shut off.

I've always used my bottles at around 900-1000psi, before I used a heater I used nitrogen.

pa_sjo

Do ambient temperatures really have that much of an effect on a nitrous bottles pressure though when in-use? I would have thought the consumption of the gas would provide 99% of the temperature (and thus pressure) change.

JonnyBravo

I've known a fair few nitrous bottles to bleed off in cars when sitting up the pod in the summer.

On a coldish day I would be lucky to see 600psi from my bottle if it wasn't full, on a hot day I've seen it creep past 1000psi and I've had to adjust the BOV to stop it emptying itself in my car.

lead_foot

iTrader: (1)

Blahh!! only a hour too late

Rod-Tarry

My bottle stays at 1000psi regardless of temperature or length of use cant understand why you guys use these cheap systems. .

JonnyBravo

Thats right Rod, its called nitrogen

I have nothing against WON products at all

Chip

iTrader: (3)

Ive jetted my own cars for cold bottles plenty of times, whats risky about that?

Providing you have a pressure gauge its not an issue at all, you just swap the nitrous jet (leaving the fuel one alone) to match the pressure you have, I do it all the time, cold nitrous actually suffers marginally less phase change as well, so in that respect is better!

JonnyBravo

I'd rather not have to fuck about with it tbh, I prefer to be able to switch it on and use it without having to dick around swapping jets or resetting the pozy maximiser

I'm not saying I haven't jetted it on a cold bottle before but the results are far better on a 950psi jetted system.

Lloyd

i would agree that this is the best way to do it.
i run 550 bhp with a 40 shot of nos as a anti-lag,and it works really well. breaks the rear diff every time.

JonnyBravo

Glad someone agrees lloyd

We've done LOADS of testing on my mates Corvette and we know what works and what doesn't and 8/10 what were told to do doesn't work, its been a hell of a journey for my mate but his car has finally shown its true potential.

Chip

iTrader: (3)

Its quicker to swap a jet than to wait for a heater, all depends on what you are doing with it.

I like to aim for 950psi as well, but you certainly CAN get good results on less if its well managed.