OI, hva skjedde?
Var det stempelet som fløy ut av motoren?
Nitrometanol?
Kan noen hjelpe med å downloade/skaffe en video fra den siden?Gixxerman wrote:Link
Det er denne: http://videos.streetfire.net/Player.asp ... &kw=25&p=0
(Supra racing a ZX-10, Spins a rod bearing after walking the bike, limps home and discusses it.)
Takk.
Ble sydentur istedenfor. 
Normalt kjører man med ca 85% Nitromethane og 15% methanol.Denne blandingen koster ca.70,-Kr Liter`n.Dette beror på hvor mye du kjøper. En TopFuel Dragster bruker ca. 45Liter på et Pass, dette inkluderer burnout, backup to the starting line, and quarter-mile run. Dette på en V8 motor som holder ca.6000Hk.Her stjeler også kompressoren ca.1500Hk.Blandingen på Nitroèn varierer med temperatur og Trykk.(Høytrykk eller lavtrykk i lufta)Tilbake til Nitro spørsmålet så har jeg her følgende.
Jeg må ta dette på Engelsk for det er lettere for meg.
Nitromethane is a fuel that is used in racing, particularly in drag racing, to provide more power. When you hear the term "nitro-burning funny car" or "top-fuel dragster", that means that the engine burns nitromethane. (Model aircraft fuel contains about 10% nitromethane.)
Nitromethane's chemical formula is CH3NO2. For comparison, gasoline is typically C8H18. The oxygen in nitromethane's molecular structure means that nitromethane does not need as much atmospheric oxygen to burn -- part of the oxygen needed to burn nitromethane is carried in the fuel itself.
You need 14.6 kilograms of air to burn a kilogram of gasoline, and only 1.7 kilograms of air for the same amount of nitromethane to burn. A cylinder can only hold so much air on each stoke, and with that amount of air you can burn 8.7 times more nitromethane than gasoline. By pumping in 8.7 times as much nitromethane per stroke, you get about 2.4 times more power per stroke. Gasoline provides 18,000 BTU/pound (42 MJ/kg). Nitromethane provides 5,000 BTU/pound (12 MJ/kg). The amount of nitromethane also provides some cooling, making the charge a bit denser and increasing power.While going down the track the engines run on the verge of hydraulic lock (that is, the air-fuel mixture is compressed so much it is almost a liquid). Two spark plugs per cylinder are the rule, with some teams experimenting with three. The spark plug electrodes are completely consumed during a run, but spark ignition is not necessary after the first half of the pass, since the motor is dieseling (igniting the air-fuel mixture without the help of a spark) because of the compression and extremely hot exhaust valves.
Noen fakta. En TopFueler kjører 1/4mila på ca.4.5 sec. med en fart over mål på ca.530Km.En Top Fuel dragster accelerates fra 0 til 160Km. på ca. 0.8 Sec. Dette er ca.11 Sec. fortere en hva en Porsche 911 Turbo klarer på samme fart. Håper dette ga en liten pekepinne på hvor vanskelig og dyrt det er å trimme med Nitro.
Jeg må ta dette på Engelsk for det er lettere for meg.
Nitromethane is a fuel that is used in racing, particularly in drag racing, to provide more power. When you hear the term "nitro-burning funny car" or "top-fuel dragster", that means that the engine burns nitromethane. (Model aircraft fuel contains about 10% nitromethane.)
Nitromethane's chemical formula is CH3NO2. For comparison, gasoline is typically C8H18. The oxygen in nitromethane's molecular structure means that nitromethane does not need as much atmospheric oxygen to burn -- part of the oxygen needed to burn nitromethane is carried in the fuel itself.
You need 14.6 kilograms of air to burn a kilogram of gasoline, and only 1.7 kilograms of air for the same amount of nitromethane to burn. A cylinder can only hold so much air on each stoke, and with that amount of air you can burn 8.7 times more nitromethane than gasoline. By pumping in 8.7 times as much nitromethane per stroke, you get about 2.4 times more power per stroke. Gasoline provides 18,000 BTU/pound (42 MJ/kg). Nitromethane provides 5,000 BTU/pound (12 MJ/kg). The amount of nitromethane also provides some cooling, making the charge a bit denser and increasing power.While going down the track the engines run on the verge of hydraulic lock (that is, the air-fuel mixture is compressed so much it is almost a liquid). Two spark plugs per cylinder are the rule, with some teams experimenting with three. The spark plug electrodes are completely consumed during a run, but spark ignition is not necessary after the first half of the pass, since the motor is dieseling (igniting the air-fuel mixture without the help of a spark) because of the compression and extremely hot exhaust valves.
Noen fakta. En TopFueler kjører 1/4mila på ca.4.5 sec. med en fart over mål på ca.530Km.En Top Fuel dragster accelerates fra 0 til 160Km. på ca. 0.8 Sec. Dette er ca.11 Sec. fortere en hva en Porsche 911 Turbo klarer på samme fart. Håper dette ga en liten pekepinne på hvor vanskelig og dyrt det er å trimme med Nitro.
The Boss
-
mafia on 50cc
- Posts: 37
- Joined: 02 May 2005 23:43
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Hmm, interessant, ifølge disse tallene, skal det være mulig at en dragster kan veie 1300 kg og oppnå denne aksen (med perfekte dekk, ingen friskjonsmotstand, ingen vindmotstand), vet du hvor mye de i realiteten veier (kan gi en pekepinn på hvor mye "svinn" det er).V8 wrote:Normalt kjører man med ca 85% Nitromethane og 15% methanol.Denne blandingen koster ca.70,-Kr Liter`n.Dette beror på hvor mye du kjøper. En TopFuel Dragster bruker ca. 45Liter på et Pass, dette inkluderer burnout, backup to the starting line, and quarter-mile run. Dette på en V8 motor som holder ca.6000Hk.Her stjeler også kompressoren ca.1500Hk.Blandingen på Nitroèn varierer med temperatur og Trykk.(Høytrykk eller lavtrykk i lufta)Tilbake til Nitro spørsmålet så har jeg her følgende.
Jeg må ta dette på Engelsk for det er lettere for meg.
Nitromethane is a fuel that is used in racing, particularly in drag racing, to provide more power. When you hear the term "nitro-burning funny car" or "top-fuel dragster", that means that the engine burns nitromethane. (Model aircraft fuel contains about 10% nitromethane.)
Nitromethane's chemical formula is CH3NO2. For comparison, gasoline is typically C8H18. The oxygen in nitromethane's molecular structure means that nitromethane does not need as much atmospheric oxygen to burn -- part of the oxygen needed to burn nitromethane is carried in the fuel itself.
You need 14.6 kilograms of air to burn a kilogram of gasoline, and only 1.7 kilograms of air for the same amount of nitromethane to burn. A cylinder can only hold so much air on each stoke, and with that amount of air you can burn 8.7 times more nitromethane than gasoline. By pumping in 8.7 times as much nitromethane per stroke, you get about 2.4 times more power per stroke. Gasoline provides 18,000 BTU/pound (42 MJ/kg). Nitromethane provides 5,000 BTU/pound (12 MJ/kg). The amount of nitromethane also provides some cooling, making the charge a bit denser and increasing power.While going down the track the engines run on the verge of hydraulic lock (that is, the air-fuel mixture is compressed so much it is almost a liquid). Two spark plugs per cylinder are the rule, with some teams experimenting with three. The spark plug electrodes are completely consumed during a run, but spark ignition is not necessary after the first half of the pass, since the motor is dieseling (igniting the air-fuel mixture without the help of a spark) because of the compression and extremely hot exhaust valves.
Noen fakta. En TopFueler kjører 1/4mila på ca.4.5 sec. med en fart over mål på ca.530Km.En Top Fuel dragster accelerates fra 0 til 160Km. på ca. 0.8 Sec. Dette er ca.11 Sec. fortere en hva en Porsche 911 Turbo klarer på samme fart. Håper dette ga en liten pekepinne på hvor vanskelig og dyrt det er å trimme med Nitro.
AtW
Hadde det ikke vært lettere å linke til http://en.wikipedia.org/wiki/Nitromethane hvor du har hentet infoen "din", i stedet for å "ta dette på Engelsk" ?V8 wrote: Jeg må ta dette på Engelsk for det er lettere for meg.
Nitromethane is a fuel that is used in racing, particularly in drag racing, .....