I kind of agree, I don't think a piece of paper means much, you can get mail order degrees, why not mail order a dyno sheet? It doesn't mean anything really, it just tells you what the shock did when connected to a machine. On the other hand if they actually know what to do with a dyno I suppose they could tune a shock with a little more intelligence than just guessing at how a shock will perform or using the butt dyno that's pretty sensitive to the placebo effect. Now back to the first hand I mentioned, it's wondering how numbers from a dyno really translate into real world performance or if that's just a guess too.
If something ever goes wrong with your Pushed shock and you send it back, and they re-dyno it, they should be able to tell quicker what went wrong / what is wrong.
I would certainly hope that a company that produces shocks would have one...
No, you're not a tard... but it does mean that you KNOW (or can know, if you understand the diagram) the behaviour of the shock... rather than hypothesise...
exactly. Morewood had an initial run Double Barrel that they said was acting funny. I was there that day. They popped it on the dyno and "bam" ...the dyno picked up a spike in the damping curve on the graph. Paul saw where the spike was, knew exactly which circuit in the shock was glitching and only had to take that circuit out and replace 1 tiny shim that was out of spec by 100ths of a millimeter.
I saw a few bits at intense the other day, did a extensive parking lot test on it-cane creek has come a long way.
Most of the ones I have seen are so large that you need to put them on the floor, and a concrete one at that.I just don't think you're used to seeing a high dollar piece of equipment sitting on the floor.
I saw one recently with a 30" stroke. It was crazy, it stood 12 ft high from the floor.
Most of the ones I have seen are so large that you need to put them on the floor, and a concrete one at that.
Dave
i've been waiting for this time to come. i know dw's written in past years about data acquisition being used on his test rigs but the industry has been filled with way too much hype and "butt-dyno" reviews to truly sort the wheat out from the chaff.
LOL...yes I wear socks....shorties.
Small but effective! Nearly 500lbs sitting there and capable of 1m/sec. They've just really been able to refine them over the years to pack mor punch in a more compact size. One of the units that I ran when at Eibach was probably 30% larger with similar capacity. DW, you'll be interested in the two poster chassis rig that we'll hopefully have in before the end of the year.
Hell yes I will!DW, you'll be interested in the two poster chassis rig that we'll hopefully have in before the end of the year.
hah, that one got me to laugh out loud
That sounds nuts. It must suck down an amazing amount of power to do that.
Did it make you want to do more 'tech' features?©2001;2607381 said:
What kind of shaft speeds are you seeing on your data aquisition?Small but effective! Nearly 500lbs sitting there and capable of 1m/sec. They've just really been able to refine them over the years to pack mor punch in a more compact size. One of the units that I ran when at Eibach was probably 30% larger with similar capacity. DW, you'll be interested in the two poster chassis rig that we'll hopefully have in before the end of the year.
Why do they have an x-ray machine?©2001;2607364 said:
so they can see inside the shock as its heated up or what happens on the inside when it bottoms out.
PUSH is rad b/c of all the science and deconstruction of so many different things, ya know? it was like being in a laboratory and the fact that they deal with bikes is kinda beside the point, i guess. if they were doing the same thing with computers or guitars, i think it'd be just as cool because the process is the best part.
That was neat. I need to get me one of those.
Those units are for companies who are developing stuff from the ground up. When I worked at Marzocchi I remember the factory floor in Italy vibrating when they fired up the MTS dyno that was located there because of the huge hydraulic pressure required to operate it.
You may or may not be suprised, but we actually see upwards of 7-8m/sec. on the MTB stuff. These are peak velocities but seeing 2-4m/sec is commonplace. As for the chassis stuff, I don't want to give much away now, but if you've been around 4 post units you've already got a pretty good idea of how it's laid out. Maybe we can persuade Litter Mag to make a trip up to cover that unit as well.
LOL...that's just figurative speech.
We use our dyno for the most part for generating damping characteristic curves. For examaple examining levels of Propedal in a shock, how it transitions from bump force, etc. This combind with the leverage ratio stuff allows us to better tune the shock to a frames specific mechanical characteristic.
