What kind of Ds 708 modification can through the annual inspection?

What kind of Ds 708  modification can through annual inspection, which has been made modified bikers headache In fact, like following these modifications is able to pass the annual inspection!1, the throttle to increase: to significantly improve the intake air flow rate, but without restraint causes engine fuel mixing ratio is too low and detonation.2, high compression ratio of light piston: reduce engine crankshaft, connecting rod load, engine and quick responses, more explosive.3, high angle camshaft: the valve lift and the opening angle is larger, more combustible gas mixture into the cylinder and the exhaust gas more smoothly.4 drive ratio and block gear: Main reduction ratio increase, from 1 to 4 speed gear teeth than encryption, can enhance the acceleration of the vehicle, but the cost of reducing speed. Therefore can be used to increase the year-end banquet, 2 to 4 gear teeth than encryption, 5 sparse to make up for the lost speed gear change.5, power lines: the original car is usually 5 kilohms high resistance line of fire spread to the spark plug replacement for the low resistance of the line of fire, so the maximum extent of the energy released by the ignition coil, but be wary of flashover, interference and other symptoms.6, the balance rod: Connect vehicle suspension tower to achieve enhanced body rigidity and prevent deformation due to intense manipulation leaving shock and even body purpose.7, spark plugs: the low-cost, short life to 20,000 km, poor resistance to high temperature, ignition energy of ordinary nickel copper spark plug change for long life up to 100,000 km, resistant to high temperature above 2000 ℃, ignition great capability, but the corresponding higher cost iridium spark plug is an entry-practices. The choice should pay attention to heat value is too low, the engine speed up the weak, too high will result in deposits. Naturally aspirated vehicles Japanese 5 degrees to 7 degrees can be achieved by strengthening purpose turbocharged car by more than 7 degrees better. Note: Average Japanese spark plug with a nominal 5 degrees, 6 degrees, 7 degrees ...... incremental and positive incremental, but the European system such as Bosch spark plug, is just the opposite.8, various instruments: inaccurate because the data transfer, the original car pointer instrument often can not meet the severe modified cars need fine control conditions, it is in need of replacement.9, the fuel control valve: Original oil return valve is generally 2.5 to 4 kPa, models of different pressure values ​​are different and can not be adjusted. The installation of fuel booster allows return oil pressure becomes larger, slower drain the fuel injection pressure increases at the same time increase by the amount of fuel injection injector atomization more perfect.10 ground: through the strengthening of the ground, you can reduce the interference of a variety of electrical equipment to ensure the stable operation of the power generation, electrical equipment.11, air force packages: the aerodynamic package, usually by the side of the front air dam, dual front wings, side skirts, tail, tail composed in the visual sense of the body becomes strong at the same time across the body needs to adjust the air toward auxiliary power. Heavier aluminum, lighter but more the brittle cold carbon fiber and three materials, light and tough heat carbon fiber optional hot carbon fiber is extremely expensive and it is more common in racing.12, computer tuning: modify the ECU program to increase the amount of oil and oil off delay time, adjust the horsepower output linear.13, light flywheel: responsible balance the role of the flywheel being overweight acceleration, replace light flywheel be obtained accelerate the reaction, the oil from the line shall be more accurate.14, wheels and tires: high performance tire flat vehicle steering more responsive and less deformation, thereby increasing grip. And compared to lighter weight, high hardness, heat dissipation good cast alloy wheels, forged alloy circle lighter, higher strength, at the same time the cost is higher.