Main Jetting

The tuning of the main circuit fuel flow curve is vastly simpler than in a booster style carburetor. The unique design of the main jet gives a flat fuel curve through all air flow ranges of operation. Dyno tests have shown instant flat fuel curves at whatever ratio you select it to be. There is no need to understand complex emulsion well tapers and air bleed influences or other difficult concepts, you simply select a larger jet for more fuel flow.The main jet system is also seperated from the transfer system, so altering the main jet size has no influence on the idle and transfer fuel quality.

FUEL BOWL

Another common problem in conventional carburetors is aeration of the fuel prior to entering the main jet. When the main jet draws in air instead of fuel the mixture is altered for a short period of time. The QuickChange carby has a unique bowl design that eliminates fuel frothing in the bowl and entering the jets. The bowl also flows much more fuel than a conventional bowl and fuel flow is independent of the needle and seat window alignment. Fuel pressure handling limits are increased and fuel cannot splash into the vent

Any Fuel

You can change from petrol to methanol by simply undoing one bolt, changing the top assembly and re-tightening, a process that requires a total teardown of conventional carburetors. The QuickChange carburetor is suitable for use with any liquid fuel and is very simply and easily converted.

FUEL VAPORISATION

The design of the QuickChange carburetor main jet allows for altering the droplet size to suit individual applications. Controlling the droplet size influences an engines ability to makepower at high revs. The emitter orifices of the QuickChange carb's main jet delivers a finely atomised fuel fog to the induction system. This distributes more evenly and ignites more readily than larger fuel droplets. Dyno tests have also shown a vast improvement to the balance of individual cylinder exhaust temperatures.

R&D

These unique 6 barrel carbs were developed to fill a need. Our larger "Dominator" style 'Pro' carbs will be be available soon. We will continue to test on race engines like "Blackjack". Blackjack is the current national record holder for SS/A. Contact us for more information on our "Race" and "Pro" carby range.

Not an overnight success....