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Universal Power Commander Relay Harness

(RRP: £22.99)
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Power Commander - Power On Command!!

Introducing the Dynojet Power Commander - The perfect tuning tool for your Fuel Injected Motorcycle.

Dynojet's new Power Commander series represents breakthrough technology for motorcycles with original equipment (OEM) fuel injection. Each unit is supplied with a specific map, designed to improve performance over stock. In addition, several maps for alternate tuning packages are included on the CD and can be downloaded into the Power Commander module via a Laptop or PC. The Power Commander kit includes a PC link cable and software package, which allows you to fully map the fuel curve on your computer. If no computer is available, the fuel curve can be adjusted using three touch buttons on the faceplate (PCIII USB models only).

NEW FOR 2009 and Onwards models - The Dynojet Power Commander V - READ MORE HERE The new PCV is very compact (less than half the size of the PCIII USB), yet offers expanded features and options, with tremendous control over your engine management system.

Dynojet Kits Whether you run a standard motorcycle, or a tuned sportbike, Dynojet carburettor kits can provide you with a simple and affordable solution to all your carburation problems. Dynojet Kits increase power and smoothness throughout the entire rev range, while maintaining optimum fuel economy.

Needle Jet (Emulsion Tube) and Needle Jet Caps Many newer bikes have very flat power and fuel delivery curves when used with the stock exhaust and air-box. When aftermarket pipes are used, the power curve is usually not flat. You find the need to lean out for low speed and richen up for top end, or leaner on the top end and richer at the low speed. In order to achieve full function and driveability, Dynojet develops shrouds or cap style nozzles for adjusting the upper or lower top end. They also have an effect similar to fuel injection by breaking up the fuel as it enters the air stream.

Fuel Needle The design of the needle is where Dynojet spends most of its R&D time. The needle is designed to give the correct amount of fuel throughout the mid-range and is also designed to allow adjustment from groove 1 to groove 6 with little or no effect below 3000 R.P.M. Then with correct end dimensions, the needle will have little effect on the main jet regardless of needle position. This isolates all circuits from each other and ensures easy set-up of the midrange and driveability.

Main Jet Dynojet develop their main jets to correctly serve two functions; static load and dynamic load. The static load is the fuel received through the main jet in the upper gears, where the tachometer is moving very slow. The dynamic fueling portion of the main jet is the amount of fuel received from the jet in the mid-range potion of the power. For example, you have a GSXR1100 G,H with #130 main jets. You then install #125 mains. After running the bike you notice the top end has improved but the mid-range doesn't pull as well. You then install #135 mains and you notice the mid-range is great but the top end is slower. 
This is a common compromise when using stock main jets and needles. If you install Dynojet 130 mains, you would get the mid-range power of the #135 and the good top end of the #125. This is because the Dynojet main has a venturi design more consistent to the engine's needs.

Main Air Jet This jet allows air into the emulsion tube to mix with fuel being drawn up from the float bowl. It controls the amount of fuel which can be pulled from the float bowl into the venturi. The larger the size of the main air jet, the more air you get and less fuel. The smaller the main air jet, the more fuel you get and less air. Dynojet alters this only to achieve the flattest possible fuel delivery curve.

Pilot Circuit This controls 100% of the engine idle and 25% of the transition onto the needle. Dynojet has found that the engine will idle with the standard pilot jet, with or without the air-box and with the slides and needles removed from the carburettors; therefore we never change the pilot jet. Doing so is proof that you are not using the other circuits correctly. Idle and off idle is controlled by the mixture screws and the float level which have the most positive effect below 4000 R.P.M. On some models the pilot air jet is changed to provide optimum fuel economy. Correct balancing of the carburettors also ensures a smooth idle.
Each kit is put together with full and comprehensive instructions which show step by step installation and testing procedures to ensure a perfect set-up every time.

Stage 1 Kits Intended for motorcycles with a stock engine using the stock airbox, air filter and stock pipe. Stage 1 kits are fully adjustable to allow the use of a well designed aftermarket pipes and stock replacement air filters like K&N. Stage 1 kits are designed to improve throttle response and driveability and in most cases power increases of approximately 5% throughout the entire power range can be achieved.

Stage 2 Kits Intended for motorcycles with a stock or mildly tuned engine using a well designed aftermarket pipe with a modified airbox and a stock replacement air filter. Stage 2 kits are designed for applications where individual filters cannot be installed and for applications where airbox modification improves the engine's performance. In most cases power increases of approximately 8% can be achieved.

Stage 3 Kits Intended for motorcycles with stock or mildly tuned engines using a well designed aftermarket pipe and individual air filters. In most cases power increases of 10-15% can be achieved. However driveability may be compromised particularly with short stroke, high rpm motors. On some modern engine and airbox designs, individual filters and proper jetting offer no performance improvement yet compromise driveability, in such cases stage 3 kits are not available.

Stage 7 Kits Intended for race only use or for special applications, like the Yamaha V Max complete induction kit. Stage 7 kits are designed to optimize jetting for a given tuning specification or racing conditions - please call or e-mail us for more information on stage 7 set-ups.

Power Commander Fuel Injection Kits Dynojet's new Power Commander series represents breakthrough technology for motorcycles with original equipment (OEM) fuel injection. Each unit is supplied with a specific map, desiged to improve performance over stock. In addition, several maps for alternate tuning packages are included on disk and can be downloaded into the Power Commander module via a PC computer.The Power Commander includes a PC link cable and software package which allows you to fully map the fuel and ignition curves on your PC computer. If no PC computer is available, the fuel curve can be adjusted using three touch buttons on the face plate.

For further information on delivery times please contact us on sales@bici.co.uk or call on ++44 28 9581 1333.

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