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Alex
05-11-02, 04:33 PM
Just wondering if anyone has or knows of a nova with no2 fitted?

wisewood
05-11-02, 04:41 PM
Ian's - but he claims it is "just a fire extinguisher"...

lmao. :D

Alex
05-11-02, 04:46 PM
Thats what got me thinking about it.

I have just come up with a great new idea. Fire extingishers which are labeled as NOS. That will impress a few people who don't look closely. Although it is probably illegal labeling a fire extingisher as having an explosive content.

wisewood
05-11-02, 04:52 PM
Probably illegal to label NO2 as being a fire extinguisher - but the other way round wouldn't matter would it... lol.

Matt Finary
05-11-02, 04:58 PM
I'm going to be running a Zex System in the flying machine :twisted: , But at the moment it is just sitting in my garage :cry: .

Matt :D

?Marty?
06-11-02, 01:42 AM
And you can get 'Bazooka' bass tubes in the shape of nos bottles (with nos written on it) with an 8" sub for ?300.
They look pretty good. Don't know what they sound like.

I'm a bit wary of having high explosives in the car incase i crash it. Coz when i do go, i'll go in style.

Aragorn
06-11-02, 09:16 AM
ummm, nitrous oxide isnt explosive, its used as laughing gas

all it does is when its heated up it breaks down and releases lots of O2 and this mixes with the extra fuel to make a bigger bang

so in theory it would HELP combustion, just like pure oxygen would, but its not explosive i woulnt think

if u put a naked flame into a jar of o2 all it does is burn hotter and harder, it doesnt explode

Jim
06-11-02, 09:31 AM
There is a Nova with Nos fitted. It's from the ISACUNT (spelling?) group of lads. I think it's a 2.0 8v with NOS. It was at the PV2002 show early on this year. It ran a mid 13 1/4mile time beating a Scooby, which was nice to see and got a massive cheer from the croud :lol:

Check the report for the PV2002, It's a Red Nova with ISACUNT written down the side of the car.

Jim

Matt Finary
06-11-02, 12:41 PM
Remember that Nos is a brand name! I heard that Zex was a better system then Nos and that is why went for that.

Matt :D

Chris LR
06-11-02, 01:02 PM
Sorry aragorn but my understanding of Nos is that it shrinks the fuel/air mixture as it enters the combustion chamber, so you can get more mixture in and it gives you a bigger bang.

Which is why you have to strengthen some engines otherwise you'll blow the sump off.

Harpo_8
06-11-02, 01:09 PM
a mate of mine, Ian sutton is just lookin into putting it onto his 2L

i think he was talking about getting it from the states or somin

:o mad man!!

Stuart
06-11-02, 01:33 PM
aragorn is right, it breaks down and releases O2 and Nitrogen (which is nost of the atmospeheres air anyway lol)

wisewood
06-11-02, 01:53 PM
oh yeah - so it is... lmfao.

i do know quite a lot of people that confuse nitrous oxide with nitro glycerine... now there is an explosive substance. you only need to step in a puddle of the stuff and you'll blow your leg off... :D

?Marty?
06-11-02, 05:50 PM
I didn't mean explosive in that way, but if it ignites it will cause a lot of damage, as it's pressurised. I've seen a car that 'blew up' because of a wiring fault. Luckily there was no one inside/near it, but it made a real fuckin mess. I wouldn't like to think what the person would have looked like if he/she was inside the car at the time.

I guess it depends on the size of the bottle though too.

Matt - you're right, zex is a better system to use, though Noz is the main brand name (probably due to The Fast and the Furious).

'Noz' - it's like 'hoover', 'sellotape' and 'coke'.

wisewood
06-11-02, 05:59 PM
... and don't forget about blue tac.

CP
06-11-02, 08:28 PM
Sorry lads but there's been some right old Bollox talked about NOS.

Its an oxidising agent releasing 2 parts nitrogen and 1 part oxygen at around 300 degrees C which is when it breaks down in the combustion process. For it to provide any extra energy it must be combined with a fuel and ignited. As such for all intents and purposes its no more dangerous than compressed air or oxygen. The danger with it is, is that it is stored at high pressure as a liquid. The cylinders need to be good upto 3300 psi (about 75 bar). Obviously the dangers are as with any compressed gas - it can cause the bends if it is blasted against your skin and into your blood stream or the tanks can blow up if ruptured or heated too much.

A simple nitrous kit consists of basically a tank, some high pressure pipework, a couple of solenoids(1 high pressure), some switches and 1 or several delivery outlets. The NOS liquid is piped to a high pressure solenoid, metered with an appropriate jet before hand and then piped to another non-metering jet into the induction of the engine. Petrol is similarly supplied. As the NOS travels thru the solenoid the pressure is released and it boils into a vapour & blasts out just like an aerosol. If the fuel is sprayed in, down stream of this, the NOS blasts into it and forms dense emulsified mixture of super cooled petrol and NOS which is drawn into the engine. This is in addition to what the engine already is drawing in normally in the way of an air/fuel emulsion. Obviously the energy provided from the resultant explosion of the 2 mixtures combined can be considerably increased = more power

The main danger from the incorrect use of NOS comes in 3 main ways:
1. Too much power is created which over whelms the engine components and the drive train - usually cranks and drive shafts etc.
2. Applying large amounts of NOS/petrol mixtures at too low an engine speed. Cos NOS/petrol is metered by nozzle size and the time the solenoids are open for, it means that at low engine speeds there is a lot more being taking into each cylinder with each induction cycle than at high engine speeds. This can raise compression levels to unacceptably high levels which can blow head gaskets or worse.
3. Not delivering enough fuel with the NOS i.e running the engine lean = piston melt down and valve burn out

It is easy however to avoid these problems with correct use of switching and metering jets. Ignition needs to be retarded and cooler plugs added.
If you want to go for larger amounts in already high powered cars more sophisticated methods are used. These use pulsoids (pulsing solenoids) linked to a box of tricks which pulse the NOS and Fuel in at variable rates. This means that you can start off with something deliverying say 50 hp at modest revs and programme it to increase this to say 200hp flat out.

The reason why I know this is cos I've looked into it all as I'm developing a homemade kit with MC. I think we can make and fit simple kits for ordinary cars for about ?300. Should have the first system ready for testing in a month or so.

Chris LR
06-11-02, 09:49 PM
Hand-up....... I've been talkign the b*ll*cks

Sorry.