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Push Industries

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About Push Industries

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    Colorado
  1. It's not really particular to the discussion necessarily, but if you check out the link below you can see our EMA running actual suspension data collected using our on-board data loggers. Heck, you'll even get a look at one of our data loggers. http://www.vitalmtb.com/photos/features/First-Look-Push-Industries-Elevensix-Coil-Shock,8629/Slideshow,0/bturman,109 Darren
  2. Push Industries

    shim changes and damping curves, based on dyno testing

    I'm confused. Are you saying that when you run a PVP test that you're also getting CVP data? Just because you grab an individual velocity from a multi PVP file doesn't mean that you're getting CVP data. Also, I'm very surprised that Scott would recommend using PVP files for any kind of data evaluation because it doesn't tell the story of what is actually going on in the damper, but rather just a quick snap shot of the limit of the velocity being tested. Especially in a situation where you have so many dynamics such as bleed, preload, displaced volume, speed sensitive volume, shims, valve springs etc. You mention that "I have found the PVP shows a little more detail at the lower velocities." but how could that be the case when you're getting such fewer data points and really just an average of the few that are being collected? Darren
  3. Push Industries

    shim changes and damping curves, based on dyno testing

    Depends on what we're doing. Offroad damper tests are tested to a minimum of 60 in/sec up to 180 in/sec.
  4. Push Industries

    shim changes and damping curves, based on dyno testing

    Here's a force curve of a rear shock from a 2014 YZF450. This test was performed on our Roehrig Engineering EMA and is gas force corrected. Specs: LSC-10 Out HSC-2 Turns Out Reb-18 Out Gas Pressure: 158psi Darren
  5. Push Industries

    shim changes and damping curves, based on dyno testing

    The rod certainly shouldn't be preloaded 100lbs if the gas pressure is only between 150-175psi! Also, when you dyno a shock or fork the machine runs a "gas test" prior to running the damper tests in order to isolate it from the equation. This allows you to view and manage the data from each independently. Darren
  6. Push Industries

    shim changes and damping curves, based on dyno testing

    The force curves shown are linear and not digressive in character...although, this a Microsoft Excel spreadsheet shown and not the actual dyno curve so I'm assuming there's some translation loss? I'm guessing that's why you also show 100lbs of force @ 0 velocity? Almost 300lbs of force change @ 50ips via the external adjuster? If that's the case something is wrong. The force produced by a standard KYB adjuster is only 300lbs of total force so it shouldn't show up in the 600-900lb range. Darren
  7. Push Industries

    Tony Foale leverage ratio software

    Do you have an on board data logging system? If so, mount a pot to the center of the axle and one in the position of the shock and cycle the suspension through its stroke. Most logging software has a motion rate feature which can convert the data within minutes. Takes a while to get the bike prepped with the equipment, but all in all it only takes about an hour to map a bike with all of the assembly work. This method also eliminates the potential of inacurrate measurements by the operator. Darren
  8. Push Industries

    Dave J - Smart Performance

    mmmmm......rebound simulations @ 4m/sec! http://m.youtube.com/watch?v=2N2AyLIgBBg
  9. Push Industries

    Push Industries Suspension Service

    Robacks, Thanks for your business. As for the Moto stuff, we're really more focused on the local market her in Colorado so it may be hard to find reviews outside of that market. It's not to say that we wouldn't be willing to help you out, but we really haven't looked into branching out Nationally at this point. Darren
  10. Push Industries

    2013 crf450

    This thread needs more pics!
  11. Push Industries

    shock dyno

    For the people who have posted that a dyno isn't necessary I would be curious to know what you base this on? In other words, what kind of dyno experience do you have? Is it something that you've seen on the internet, or at a workshop somewhere, or have you actually owned and operated a unit yourself? I think it's important to the OP that people are not giving advice without having first hand experience. Darren
  12. Push Industries

    shock dyno

    Yes, we do. We're able test forks at 1.0m/s over 2" of stroke. This statement is a bit contradictory. Seeing what changed for the tuning and/or manufacture of parts is what tuning is. ActiveRide, I would be extremely interested in learning what telemetry system you are using. I've done a bit of research but have been unsuccessful in locating a telemetry system capable of working with the elevations at motocross tracks without interruption. Feel free to email me at dm@pushindustries.com if you're willing to provide any information. I think this brings up a good point for this thread. Everyone is focused on the peak dyno velocities, but we're not factoring frequency response into the equation. So, you may be able to create 0.5m/sec pushing, but you can't do it at 6hz. I think this is why the earlier video that I posted could've been confusing. It's not just the peak velocity that the dyno is producing, but the fact that it's doing it at high frequency. For instance, here's a MTB fork being run @ 1m/sec over 2" of stroke, @ 6hz(I wish I knew how to embed it here): Darren
  13. Push Industries

    show us your workstation!

    No on the Manitou. As for the manual mill and lathe, it's decent stuff. The Grizzly, Enco, Jett, etc units are all made by the same company from what I can tell. Going on 5 years of daily use without a hiccup. I went with Grizzly because of their excellent small parts availability. As for our CNC's though.....straight up USA made machines. The only thing you'll find in our shop is Haas. Darren
  14. Push Industries

    shock dyno

    We use the Race Tech units but are currently testing some units that have transducers with accelerometers built in so that we''ll be able to gauge harshness. The new unit is a 3 channel that samples @ 125ksps. To be honest, The Race Tech unit is my favorite because of ease of setup and use, but it's not supported any longer which is a bummer. I'm actually going to lunch with Paul Thede next week and will probably hit him up for some spare parts while I'm there! Ha! Nothing is ever good enough! For sure.Darren
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