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Old 08-03-2017, 06:12 AM   #481
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Anyone run the v2 and EU back to back and can contrast the feel or changes to oil that may/may not be needed to change to run them? Thx
The EU work really well on high grip surfaces. The XV2 is just an all around good piston, but also performs well on high grip. Some will use our Hard Valves when running on high grip as well. This slows down the rebound a bit.
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Old 08-03-2017, 06:12 AM   #482
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Excellent, more pistons on the way.
Thanks VRP! Killer products and service as always.
Thank you!
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Old 08-03-2017, 06:33 AM   #483
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A lot of choices to choose from. Which ones do you recommend for a Mugen mbx7r eco vx2, vx3 or game changers? What's the difference in them?
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Old 08-03-2017, 10:00 AM   #484
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A lot of choices to choose from. Which ones do you recommend for a Mugen mbx7r eco vx2, vx3 or game changers? What's the difference in them?
The XV2 and XV3 share a similar design, employing 2 extra holes covered by rubber flaps. These extra components ONLY affect the rebound of the shock. In summary, extra rebound allows the shock to let the wheel get back down to the surface faster, providing better traction. Picture going through a section of track where there are smaller, chatter type bumps. These bumps will force the wheel "up". As the vehicle gets past the "bump" and finds itself over a "low" spot on the surface, the faster you get the wheel back down, the more it has a chance to grip the surface.

The XV3 provides the same performance as the XV2, in terms of the 2 rebound holes covered by rubber flaps. The difference is in the design of the main piston area and the way the rubber flaps are held in place. The XV3 removes less material from the main piston to accommodate the rubber flaps. This makes the XV3 stronger in design.

The GameChangers also employ the use of the rebound flaps as found on the XV3 pistons. However, the GC's also have a Carbon Fiber Valve (CFV) installed. The CFV sits over either 2 or 4 of the holes in the piston (based on whether you choose a 6 or 8 hole piston). At rest, there is a gap between each "arm" of the CFV and the hole that it sits over. This allows the shock oil to flow around the "arms" of the CFV and through the holes they sit above during low shock shaft speed suspension movement (LSSSSM). LSSSSM happens when your chassis is shifting weight forward as you come into a corner at high speeds, or your traveling at high speed on a mostly smooth straight away with small deviations in the surface. The suspension is being "worked" a whole lot less in these conditions. As a result, the CFV remains "un-flexed", leaving the holes under each arm "open".

Where the CFV and the GC pistons shine, is under high shock shaft speed suspension movement (HSSSSM). The easiest example of HSSSSM is when an 1/8th scale buggy is launched off of a jump, putting it in the air 5 to 6 feet off of the ground AND there is NO landing ramp. This provides the typical "chassis slapping" sound that we hear when the shocks cannot provide enough damping to prevent the chassis from "bottoming out". Commonly known as a "flat landing".

Under HSSSSM, the CFV arms will flex downward, due to the increased surface pressure of the oil. As they flex down, they now cover up these 2 to 4 holes, preventing oil from flowing through them. By reducing the amount of compression holes in the piston, the shock will be able to produce more compression damping (commonly known as "pack"). This additional "pack" will help to keep the chassis from bottoming out on the race surface. When a chassis bottoms out, it, for the moment, takes the pressure off of the tires, potentially causing a loss of traction. This is even more noticeable when that flat landing happens when the jump is placed in a turn. You'll see (and hear) the chassis slap the surface, followed by the rear end washing out, causing a spin.

Therefore the GC piston gives you the best of both worlds when it comes to compression damping:

1.) Supple, soft damping at low shock shaft speeds
2.) Firmer (more pack) at high shock shaft speeds

And, don't forget, the GC's also incorporate the 2 same rubber rebound flaps and holes found in the XV3's. So, you also get faster rebound with the GC's.

In summary, if you're strictly looking for faster rebound, resulting in better traction, the XV3 piston will provide that. This doesn't mean that you can't go up in shock oil (slightly) to provide some additional HSSSSM damping with the XV3's. The addition of the rebound system will still give you better rebound than standard, static pistons.

The GC's however, will give you both dynamic compression damping characteristics along with added rebound. The GC's come in 3 different "pack" levels: Low, Medium and High. This makes a GC slightly more challenging to choose initially and tune with.

Your choice between GC's and XV3's depends on what you are looking to achieve AND if you are willing to experiment to fine tune your choice. XV3 will be slightly easier to tune with. GC could possibly take more effort to achieve an all around performance increase. But, once you achieve that with a GC, you are taking advantage of more "systems" with the GC over the XV3.
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Old 08-03-2017, 12:58 PM   #485
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Liked what I had from you for my B6, would love to see you make some tranny shims for the Yokomo YZ2, some weighted ones would be cool
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Old 08-03-2017, 04:56 PM   #486
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anyone got an ideal oil weight for front and rear for 1.3 8 hole game changers 1/8 e buggy
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Old 08-04-2017, 04:32 AM   #487
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I got MP GC's and I run 35/30 F/R, I've read that they like light oils. I may try 32.5/27.5 or 32.5/30 this weekend. But 35/30 is pretty darn good.
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Old 08-04-2017, 05:58 AM   #488
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Mostly depends on the temp, but 35/30 is a good starting place. If its fairly warm outside, just go up 2.5-5wt as needed.
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Old 08-04-2017, 05:59 AM   #489
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Liked what I had from you for my B6, would love to see you make some tranny shims for the Yokomo YZ2, some weighted ones would be cool
Lol, we are always working on something.
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Old 08-04-2017, 06:15 AM   #490
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It is with GREAT pleasure that I announce VRP has officially been awarded our United States patent on our groundbreaking piston technology. It goes without saying what a big deal this is for us as it assures our proprietary technology stays exactly that.... ours

#VRP
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Old 08-09-2017, 09:44 AM   #491
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Smiley,

I have couple of questions.

1) Do you plan on releasing XV2 +1.0mm for Kyosho 1/10th scale? Specifically, I'm interested in 3x1.4 + 1.0mm.
2) Do you plan on releasing blank XV2 pistons so we can drill our own? For blanks it would be good to at least put dimples on the piston in the 2 / 3 / 4 hole locations to assist in drilling without CNC.
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Old 08-10-2017, 06:01 AM   #492
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Hi Travis,

Yes, we sure are. We will have them up on the site soon. Hopefully in about a week they will be available.
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Old 08-10-2017, 06:17 AM   #493
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Hi Travis,

Yes, we sure are. We will have them up on the site soon. Hopefully in about a week they will be available.
Will this include dimpled blanks for the XV3's as well?
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Old 08-11-2017, 10:04 PM   #494
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Just received the B6 VRP tower today, Is this the new version? I think it looks better than the one shows on the VRP website.
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Old 08-13-2017, 04:34 PM   #495
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Will this include dimpled blanks for the XV3's as well?
Should have blanks available soon
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