'small’ nitrous question…
Thread Starter
12 Second Club
Joined: Sep 2003
Posts: 634
Likes: 1
From: Houston
'small’ nitrous question… Would N20 work with a very small two stroke engine that already runs on 30% Nitro?
I used to race Nitro R/C trucks and I’m thinking of building a new one just to tool around with. The engine I ran on my last truck was a custom forged Novarossi that put out 1.9 BHP and revved to 37,000 RPM. I wonder if I could put a VERY small nitrous jet in the side of the air filter and give it about a 3HP size shot of N20?
The truck I had would roast the tires down and if it ever hooked it would jump in the air and flip several times.
This could be fun…
I used to race Nitro R/C trucks and I’m thinking of building a new one just to tool around with. The engine I ran on my last truck was a custom forged Novarossi that put out 1.9 BHP and revved to 37,000 RPM. I wonder if I could put a VERY small nitrous jet in the side of the air filter and give it about a 3HP size shot of N20?
The truck I had would roast the tires down and if it ever hooked it would jump in the air and flip several times.
This could be fun…
On The Tree
Joined: Jun 2002
Posts: 196
Likes: 0
From: Sacramento
It would work, but there isnt much point. The purpose of nitrous is to get extra oxygen in the cylinder. The purpose of nitromethane (vs gasoline) is the same.
In that sense, it's like asking "can I run a turbocharger and a supercharger?". The answer is you could, but there is no benefit because you could make enough power to blow the engine up with either one. If you ran both, the tuning issues would become more complicated thus you have more chance of a tuning problem. So with high risk and no reward, it's got a pretty terrible risk to reward ratio.
The same thing is the same with nitrous and nitromethane. Why not just up the nitromethane to 40%?
I suspect the answer is "because that'll blow it up". But, it's not the fuel that blows it up, it's the high horsepower levels. It's going to blow up at a certain power level regardless of how you get the fuel in there.
If you want to make more power and have decided you're willing to take the risk, my advice is to run a higher concentration of nitromethane.
Steve
In that sense, it's like asking "can I run a turbocharger and a supercharger?". The answer is you could, but there is no benefit because you could make enough power to blow the engine up with either one. If you ran both, the tuning issues would become more complicated thus you have more chance of a tuning problem. So with high risk and no reward, it's got a pretty terrible risk to reward ratio.
The same thing is the same with nitrous and nitromethane. Why not just up the nitromethane to 40%?
I suspect the answer is "because that'll blow it up". But, it's not the fuel that blows it up, it's the high horsepower levels. It's going to blow up at a certain power level regardless of how you get the fuel in there.
If you want to make more power and have decided you're willing to take the risk, my advice is to run a higher concentration of nitromethane.
Steve
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just for the hell of it, I ran a "hidden" N2O setup on my T-Maxx. The kit I had used little Co2 cartridges, it was meant for real cars but I adapted it. I had the throttle arm pierce the seal on the cartridge and ran a small tube to the slide carb. I had a very small "jet" rammed into the end of the hose and mounted the air cleaner above the hose. The motor blew the first time the nitro hit it, I got another used motor and tried again, this time I used an even smaller diameter hose and jet, and it ran for about 3 cartridges before it blew too. The only thing was, it was almost un-driveable when the N20 hit. The motor would lean out drastically, get ridiculously hot, and then surge and pop until the canister ran dry. When it first hit though, it was crazy! I think it could be made to work if you could find a way to regulate the N20 pressure down to a really low PSI. And turning the nitrous on and off wouldn't hurt either, with those canisters, once it's open, it's open 'till it's empty.
