Recent content by irb4ur

  1. irb4ur

    ORI Struts for Shortcourse Racing?

    Front struts looking good!
  2. irb4ur

    ORI Struts for Shortcourse Racing?

    Now testing the production model struts. So far, ride is much smoother with the extra volume of the larger reservoir. Need more tuning on the compression damping valves for a closer ratio from 1st stage to 5th stage. 1st and 2nd stages need to be slower (more restrictive), stages 3 and 4 need to...
  3. irb4ur

    ORI Struts for Shortcourse Racing?

    Look closer at the Pathfinder photo. There is no upper A-arm, only the strut. It has a 2-bolt lower mount. strut strət/ noun noun: strut; plural noun: struts A rod or bar forming part of a framework and designed to resist compression.
  4. irb4ur

    ORI Struts for Shortcourse Racing?

    The new production version ORI strut will be in testing over the next couple of weeks. The reservoir kit pictured will also be available as a remote reservoir attached via hose.
  5. irb4ur

    ORI Struts for Shortcourse Racing?

    Struts were around long before MacPherson started making them for automobiles, although now, when we think of "struts," we almost exclusively associate them with MacPherson. Our "shocks" are a structural part of the suspension; without them, the chassis drops to the ground. Shocks absorb and...
  6. irb4ur

    ORI Struts for Shortcourse Racing?

    We received several PMs and calls on this one. 1st limited production run is in the works now; limited so we can meet our October release. 2nd round of testing will be end of this month and early October. Working on pricing now. Production and design improvements will likely reduce cost by about...
  7. irb4ur

    ORI Struts for Shortcourse Racing?

    I let this thread die a long time back, but I thought it might be fun to show what we've been up to lately. We designed this latest strut specifically for whoops, jumps, and running in the heat. Tested it at the dunes in Idaho last July with good results, except for too stiff a ride. Since...
  8. irb4ur

    Rock Bouncers!!! Are they for real?

    These rigs would have to be revised for KOH, but not at all outside the realm of possibility. With 2.5 to 5T Rockwells, welded rear spools, and heavy cages, nothing is going to break. But in a 140 mile race, I would think their 400-700hp engines would overheat or run out of gas if the stiff ride...
  9. irb4ur

    Narrow ifs differential suit baja, rock climbing or ultra4 trucks

    I want two of them for our 4-wheel independent racer. Will it only fit Detroit lockers? Or do you have plans for ARB?
  10. irb4ur

    Rock Bouncers!!! Are they for real?

    At the SRRS 2012 finals in Hot Springs, Arkansas, they were better prepared. It's always best to have both a buggy-mount extinguisher for those places where help will not be close at hand, and, wherever possible, have well-equipped bystanders. I like this approach to have the fire can within the...
  11. irb4ur

    Rock Bouncers!!! Are they for real?

    SRRS announced new safety rules coming for next season, including better helmets. Some of the helmets I saw this year were not much better than a hoodie.
  12. irb4ur

    Rock Bouncers!!! Are they for real?

    You might also have noticed how rock bouncers many times end up off course or unintentionally climbing trees. In hard core high HP hill climbing they don't have time to engage/disengage lockers, so welded diffs rule. The trade-off is a very limited ability to steer: back up as far as you can for...
  13. irb4ur

    ORI Struts for Shortcourse Racing?

    I thought I would just let this thread die since ORIs are not allowed in most classes, but what the heck . . . one last word: Just yesterday watched a Speed Chanel episode on short course stadium truck racing. As my son and I were watching we were dying to see just one of those trucks on our...
  14. irb4ur

    ORI Struts New to Race-Dezert

    Two months to reply, this has to be the slowest thread in the forum. Sometimes the fix adds so much complexity that you only end up with more opportunities for failure, like lots of potentially leaky coolant lines. I like simplicity and weight reduction but will not rule out any idea. If coolant...
  15. irb4ur

    ORI Struts New to Race-Dezert

    I would like to say "No heat effect at all." But being a gas shock/strut, heat does pose some problems. We have not had heat-related failures, in fact; our customers who race them 50+ mile courses claim they run cooler than some of our competitors' shocks, but I won't name them out of...
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