The DART kit is a bolt and valve upgrade. It has a brass insert in the bolt and a new exhaust valve design that help the Ego 11 shoot much smoother with a little better efficiency. If you like the sound of the Ego, go for it. The maintenance the Ego requires is much more simple than a Geo, and takes me less than a minute on average after a normal day of play.
Pop out the bolt, wipe it down, put a clean swab through the breach, lube the bolt and put it back in ... that is really it.
Here is more:
The Ego11 DART kit is a full drop-in Valve Guide, Exhaust Valve and Bolt kit designed exclusively for the Ego11.
Designed to improve every facet of the Ego11's feel and performance the DART kit increases efficiency and reduces sound signature and felt recoil as well being more gentle on paint in both the loading and the firing actions.
The DART kit enables the Ego11 to operate at consistently lower HPR and LPR pressures than has previously been possible on any Ego, but at the same time offers superior velocity consistency and efficiency.
So how did we achieve this?
DART Bolt - The Planet Eclipse 2011 Ego Dart Bolt Kit incorporates the latest Cure4 cushioned tip design as seen on the CSL.
In addition to the Cure4 design there are now 2 seals on the body of the bolt, one either side of the transfer port. Rather than use the traditional method of stretched, incorrectly sized o-rings as the seals, the DART bolt utilizes a floating seal design. These floating seals match the internal bore of the breech to create a perfect seal, yet allow for thermal expansion and contraction of the bolt body to occur without worry of increasing frictional drag in the bolt system or loss of effective seal. The floating seals provide the optimum compromise between reliability and efficiency. They will operate with next-to-no lubrication in even the harshest conditions without any negative effects to efficiency or consistency.
Finally the new 2011 Ego DART Bolt is fitted with a weighted insert. The small increase in mass that this insert brings to the bolt system enables the Ego11 to cycle with a lower LPR pressure at lower cyclic speeds yet still retain enough inertia to pop the exhaust valve open and overcome blowback forces during the firing phase.
DART Valve System - The Ego11 DART Valve Assembly combines an improved flow path with refined dynamics that result in significant gains in efficiency. The new design forces the valve to close off more quickly after opening, reducing air wastage after the ball has reached velocity.
The Ego11 DART Kit is designed to be used only with the Ego11 platform (Includes CSL) and is only to be used as a complete kit. Installation and use of an incomplete kit will seriously affect the performance of the marker and in extreme cases may lead to damage of the marker. Only use the DART Valve Assembly and DART Bolt together in your EGO11 or CSL Marker.
Ego11 DART Kit Contains:
1 x DART Bolt Assembly (without pin)
1 x DART Valve Guide
1 x DART Exhaust Valve
Spare Bolt Plunger and Spring
Last edited by Big Papa Pink : 02-02-2013 at 12:57 PM.