Alpha Dragon V .21 3P-Pre Break-in Engine
The Dragon V, is a pre broken-in, 3 port engine designed by our engineers very highest specification. The Dragon V continues with the Dragon IV’s benefit of being easy to tune and within 2-4 tanks, be ready to race due to the out of the box pre broken-in advantages.
With rigorous testing of the new engine, we have been able to improve the following key items of the engine:-
Piston: The lightweight full-milled piston provides the engine power acceleration, which allows for greater torque and better fuel efficiency.
Sleeve: The hand made cylinder liner sleeve improves the scavenging and exhaust efficiency, the effect is that this further increases the engine's acceleration and provides a higher speed when compared to our previous versions, while retaining the smooth and linear throttle feel. (Note – Scavenging efficiency is the ratio of the amount of fresh air compared to gas left in the cylinder after a combustion cycle)
Head Button: An O-ring is added to the new head button to ensure the engine has a lower and more constant temperature performance.
Backplate: The new backplate improves the scavenging efficiency of the engine.
Crankshaft: The crankshaft has had its timing adjusts to further suit the efficiency of the new sleeve.
Carburetor: A new 8mm bore carburetor has been developed which is easier to tune and able to provide more power depending on the venturi inserts used. 6mm, 6.5mm & 7mm Venturis are supplied with the engine. 7.5mm and 8mm as options.
Crankcase and Cooling head: New V logos have been added to the crankcase to match the new bright red cooling head.
Recommended exhaust is the Alpha 2159, and P6 plug.
(ALP-21-DRAGONV)
A note on product warranties.
Please note: RC models are warranted for manufacture defects only. This hobby involves moving models which often suffer from damage when they are put under undue strain or when they collide with objects or are subjected to water. Techtonic Hobbies cannot be held responsible for items which are damaged through use, and as such please understand that no mechanical warranty of any kind is offered on items once they have been used if the item has suffered damage from any of the conditions listed above. Please choose carefully, paying special attention to the type of use and the age of the user of your new model, RC models are designed to be tough, but everything has its limits and we cannot be held responsible for damages that result from when those limits are exceeded. We have no way of telling what a model has been subjected to once it leaves the store / warehouse. Your consumer rights are not affected.