Gamehanger Data Sheet
VRP
w/Patent Pending CFV Technology
GAMECHANGER Pistons
The worlds first Smart Piston for RC...
No crazy oils
No set-up Changes
Designed around current Piston Holes and Sizes.
2 Patent Pending Designs in one Piston
VRP Patent Pending Quick Rebound System
VRP Patent Pending Reactive Compression System
Piston Technology you can trust....
Rebound Sysyem:
First we started with our XV2 Piston and the Quick Rebound System it has. It was important to keep
the exact function of that system because its proven track performance and obvious ease of understanding.
The Rebound Valve has been re-designed and updated to be smaller and use less of the inner thickness of
the piston to improve durability. This minimization was also needed to fit another ‘system’ into a small part
like a piston.
Compression System:
This System was designed through hours of research on oil flow and pressures built at the face of the
piston from surface tension. I made 100’s of iterations refining the technology, which meant hours and
hours of programming and machining, countless shock rebuilds, test drops, test jumps, slow motion videos,
and ultimately track testing. Over the last 8 months, I have refined the invention into a smooth working
model that fits what we do in racing. The System is ‘Smart’. It senses shaft speed and reacts as needed.
The Patent Pending CFV (Compression Flex Valve) allows the Piston to have Slow Shaft Speed
and High Shaft Speed Compression.
Slow Shaft Speed Compression: At neutral, it is as soft as any shock with a normal set of comparable
pistons. On the bench, you will find the suspension is subtle. Its important that this stays in the range of
what we run now, it is what makes the suspension soak up bumps and give forward grip as well as a
responsive feel at the wheel. So I made the ‘Low Shaft Speed’ Compression very similar to what you know.
High Shaft Speed Compression: At High Shaft Speeds like landing a large jump, the CFV will flex and
partialy cover some of the flow holes and provide additional damping to keep the chassis off the ground.
It flexes different amounts depending on the impact and the ‘shaft speed’, so it will respond accordingly.
If for example you were to land a smaller jump, the CFV will flex less and provide the correct amount of
damping at the time needed. Once the shaft slows down, the valve immediately returns to Slow Shaft Speed
Compression, and the damping becomes softer.
Carbon Fiber Compression Flex Valve: Engineered with 20 years of composite experience, the actual Carbon
Fiber is made in house at the VRP facility in Houston. It is unique. From the Carbon itself to the Resin its made
with, the properties are designed and taylored for the purpose. They are similar to a reed valve for a musical
instrument and care should be taken when handling them. Treated properly, they should last the lifetime of the
vehicle.
New Era of Performance: You will never have a buggy land, respond, settle, and be ready for throttle
quicker than the Gamechanger Piston. Many jumps and landings become a fluid motion with no chassis
scrub or momentum loss. The pistons also make the car more true off the face of every jump because it
does not dig in. You will find it easier to manage jumps both taking off and landing like never before.
This makes your consistency increase and ultimately your racing success. Where the chassis dug in before
and you needed turn marshaled, it won’t and you will continue on. It's a GameChanger!
8 Hole 1.3-HP
8 Hole 1.3-MP
6 Hole 1.3-HP
6 Hole 1.3-MP
Softest
Soft
Medium
Low Speed Compression:
*Typical Nitro Pack Height
18-22” 23-26” 27-31”
GAMECHANGER Pistons Tuning Guide
Normal Grip / Normal Surface
Very Low Grip / Very Rough Surface
Low Grip / Rough Surface
Normal Grip / Rough Surface
Normal Grip / Normal Surface
Normal Grip / Rough Surface
Track Conditions
8 Hole 1.3-LP
6 Hole 1.3-LP
Stock Pistons
Performance Comparison
VRP
1. Tune the Low end of the Shock Damping.
2. Start with your normal oils. Going half weight
up or down is normal.
3. Nitro Buggies will normally use the MP version.
4 E-Buggies will normally use the HP version
piston due to the additional weight.
LP - Low Pack
MP - Medium Pack
HP - High Pack
8 Hole 1.3
6 Hole 1.3
*Due to Chassis Manufacturers having different Suspension
Geometry, results have a range and may vary. Springs, roll centers
and other chassis adjustments also affect performance. We tested with a
stock MBx7R Nitro, RC8B3E, and 8ight 4.0.