ajlovering

Then high end needle is too lean and the low end is to rich. Open the top end needle one full tun and turn in the bottom end 1/2 turn. When you are running the car keep it on full throttle for at least 3 seconds and dont blip the throttle. Check the temp and if its still too high richen the top end and lean the bottom slightly Cheers

The engine is way too lean. I would check that the pressure pipe from the exhaust to the tank is attached and not split. Open the high end needle at least a full turn and try again. The stock settings mean nothing as you can have one engine with 1 full turn out riunning rich and another 5 turns out running lean. Cheers

Here are a few pics of the speed car for the IC open class at the UK RC Car Speed Chamionships in September. The engine is a CMB RS45 DM and has been on the dyno and kicks out 5.4hp at 29,500 rpm with the same pipe thats fitted to the car. The engine has a water pump and radiator for liquid cooling and is geared for 140mph. Cheers

Hi Menor I was surprised to hear you managed 97mph with the Fusion. Before it was released I spent the whole day with Phi Booth, the designer of the fusion at Schumacher, and we managed to get 80.1mph out of it and that was a number of different pimions. The largest that will fit in the car without fouling the radio box only just managed to get the car to that speed. The K5.9 you mentioned can only rev to 24,000 rpm and struggles to get over 2hp and isnt much better than the .28 that comes with the Fusion. We are holding the UK RC Speed Championships at the Shakespeare County Raceway, Long Marston on 11/12 September 2010. Why dont you bring your car along and prove me wrong. Cheers

You can start your engine and run it for 30 seconds or so without the air filter but dont run it around on the ground. Cheers

More fuel keeps the engine cooler. Evaporation of the excess fuel in the cylinder is the main cooling effect.

Hi I have a degree in mechanical engineering and would love to contribute to your project. Perpetual motion is, of course, unachievable but I have knowledge of all the various past attempts that have been tried. Spinning a wheel in a vacuum supported by magnets is one of the previous attempts and doesn't work due to the loss of magnetic properties over time and hysteresis. Electrons moving in pairs through mercury cooled to near absolute zero producing superconductivity is close to it but Entropy will always get you in the end. Let me know when you want to talk and I will skype you. PM me on Fast-rc Cheers

Hi I couldn't log on using my other username so made a new one. Thanks for all the positive comments about the record, unlike other forums I have been on. Somebody asked if the rocket would go out if upside down or at and angle. The car has an accumulator in with a sliding piston. In one side is Nitrogen and the other NOS. The N2 pressure keeps the NOS in liquid form so the car can go upside down and still work. The car is fully remote control. The steering move the wheels and the throttle actuates the fuel valve and when shut off activates the brake so its exactly like any other RC car. The rules are clear that the car must have steering and a brake and a method of shutting off the rocket motor. If its not remotely controlled it cant hold the record The Guinness book of records recognises 4 classes of RC car. Electric, IC Rocket and Jet power. Any of these can hold the outright record. After seeing what the rocket motor can do I feel this is a bit of a quantum leap in speed and moves away from the norm of speed events. Braking the speed record on the 4th run is amazing and I haven't even started to develop the car yet. I had the feeling last year that Nics record was too high and not good for the sport and have the same feeling about the rocket car. At least Nic has some competition at last Saying that it was awesome to see it go!!!! Cheers