Maty10 wrote:Ahh but did you notice superchargers, carbies, etc icing up on drag cars? Thats because moving air takes the temperature away with it, thats how radiators work in the first place.
The icing up is more to do with the methanol which they are running than the air moving through the supercharger or carby. Methanol has either a higher or lower latent temperature meaning that when it evaporates or atomises it takes heat from whatever is around it (try pouring a bit of metho on your hand then blowing on it). When you see the crews squirting stuff onto the injector hats of the alcohol cars it is actually petrol to melt the ice and stop the throttles from freezing shut.
The heat to the carbs helps the fuel to atomise better when the motor is cold, obviously something you don't need to worry about in FNQ. If you were living somewhere cold like Melbourne you would definitely notice the difference on a carby bike. This is why a V8 with an aftermarket manifold can be a pig of a thing on cold mornings as most don't have the ability to heat the base of the carb and so will cough and splutter along until they get some heat into them. EFI is a different matter because the injectors are much better at atomising the fuel than a carby.
If you're game you can see how atomisation helps by getting a water bottle and filling it with something flammable, then turning the nozzle to jet and spraying it over a naked flame, it won't burn very well if at all. Next turn the nozzle to spray and repeat making sure you stand back a little (ok maybe a lot). You should get a nice fireball but hopefully not singed eyebrows.
19,500 before the cut out. Can you hear me SCREEEEEEEAM!!!!!!!!!
