Outer Limits 4x4 Board

over land 4x4 wrote:try some of this stuff

http://cgi.ebay.com.au/CHEATER-NITROUS- ... dZViewItem

lol

You have to be joking ? i run nos , and on a 5 kg bottle i can get 10 1/4 mile runs on a 75hp shot , even then the gains are only marginal , lets say a second or slightly more over a stock engine on the 1/4 , i doubt this would give any real gains nor would it be anywhere near a 75 shot , and it would not even be able to sustain 900psi of pressure for any amount of time. I would even venture to say that this is a scam !

I think he was joking. "lol" is normally a clue...

Ok mrRocky, now I have a better understanding of what you did.

0.1 increase in compression IMO is very unlikely to make any noticeable difference to power output or its tendency to ping, so that makes some sense. As for valves touching with a 0.1 increase - not going to be a problem.

I was thinking in the area of 10:1 plus, which is usually domed pistons with valve recesses.

The "Nitrous System" - where does the extra fuel come from ?

Nitrous Oxide is just that, an oxidizer it doesn't burn on its own - its injected with extra fuel in functional systems. You would have to be running awfully rich to get a noticeable power gain with the "system" as advertised.

Also some of the gains are because of the spray of very cold Nitrous Oxide in its liquid state into the intake air - I doubt there's enough liquid in one of those bottles to fill the line let alone get to the manifold,

Have a look at the bottle and nozzle sizes on a reputable NOS system - its a good indicator of the lack of potential of this system.

Still you can truthfully say you have a Nitrous system fitted

I wonder what the one shot cylinders are actually used for - perhaps medical where Nitrous Oxide is used as an anesthetic ?

Don't know about "actual" use, but I have seen an article about using them on petrol engined radio controlled cars, where I think they work quite well (however, most petrol engined RC cars are massively overpowered anyway so I'm not really sure it would achieve, but it's a cool idea.

Steve.

they were made for whipping cream or for soda fountains eg soda stream

There were, but I though they were all CO2 now (?)

Steve.[/u]

Soda stream etc are CO2 but whipped cream - bingo, - the bottles even look the same on the pic. I'll bet if I searched long enough I'd find its a converted cream maker.

Not exactly the same but proves the point http://www.bestwhip.com/

And as a figment to RC cars - could very well work, the bottle is about the right size in relation to the engine, and they usually run pretty rich so the excess fuel is available, the challenge would be a solenoid to control it all.

And yes, just what they need - more power

boner59 wrote:they were made for whipping cream or for soda fountains eg soda stream

And getting teenagers high....(no not me!)

er... MIGHTYMOUSE i actually meant 1 point as in from 9:2 or whatever it is to 10 point something which is as much as you can take off without the valves touching.
power difference is huge, and no pinging at all

i spoke to suzisport today and the fella there said that as long as u use high octane fuel pinging shouldnt occur