Ready to build your own dyno? I've redesigned the dyno into version 2.0! I've added automatic load control and taken the time to develop all the PDFs, DXFs, programming, parts lists, and more for you to make your own! Check it out here: dirtyelbowsgarage.etsy.com/listing/1560914825/diy-small-engine-dynamometer?Copy&ListingManager&Share&.lmsm&share_time=1694223616442
This project is actually "Extremely" cool and i'm planning to build my own mini Dyno myself and came over your channel, so if you don't mind i will use some inspiration of your build 😉 At first i planned to use a Alternator but i have a bunch of used hydraulic pumps and motors in different sizes so i'll think i will use them instead, then i can test higher power and torque. Thanks for a great video and i will have a look at your other videos 👍
I agree with Richards completely!!!! And I had seen some using electric as well as the straps and blocks. But I also have several hydraulic components laying around and I really want to build this myself. I have a 660 ish. Lol Yamaha raptor that drag race and have recently setup for the 1/8 mi and this would be the ultimate tuning aid. Could I possibly message you or email for questions? I understand the mechanics but I’m a little behind in computers? I definitely would try to not be a problem. Awesome layout. The hydraulics seems way better to me!!!! Thank you for sharing
Can't wait to see the final video of the whole thing working & Data Acquisition! I'm considering building a brake dyno, but love the looks of this one!
Great project ,well done ,I really enjoyed .What kind of pressure are you seeing on the hydraulic gauge when you close of the valve and what is the load on the sensor.
The arm is keeping the pump from spinning with the shaft. The more pressure built up, the more resistance the arm sees. I'm not sure what you mean by "memory" but the pump I'm using is a gear pump.
Dirty Elbows Garage no I understand what a load cell is and the concept of a metered foot for measurement of ft/lbs. what I’m referring to is the pump seems fixed in one location where I think it should naturally rest on the load cell not sit proudly off and when you pull it or push the arm down or up it has a tendancy to return to its original position like a spring will revert to its preset hence it has a memory. Which I questioned what type of pump it is as you wouldn’t get it in a gear pump or a vane pump I imagine as they have clearances so I was wondering whether it was a radial or axil piston pump. That internal vaccum may cause the memory?
Ah I see. Good eye noticing that. So the assembly was completed semi-loosely so some of the bearing mount bolts being tight and some loose caused that. I wanted to do a final alignment and then calibration after the hoses are attached. As you'll probably guess the hoses are the trickiest part of having a free-floating condition. I was able to align, get it tightened down, and still ended up with a slight load offset on the load cell, but with some quick calibration + offset it holds zero. Other pumps definitely have good points to offer but this pump was a cost effective solution. While the flow rate of gear pumps typically sees non-linearity through the rpm range, my daq system works outside of the fluid itself so that shouldn't be an issue.
@@DirtyElbowsGarage Cool, when you end up doing your final diagnosis on the engines, can you add what the PSI rating the pump is plus the pump pressure at maximum horsepower as its an indicator of what that pump is capable at holding in term of horsepower. eg. If the pumps rated to 1500psi and your holding the engine at XXX HP at 4800rpm and the line pressure is 750PSI then we can assume the particular pump is ball park rated at double the horsepower before the pump case explodes hahaha. Can you link the parts too in the description.? Thanks.
Ive see people building these without the torque arm and load cell and I can't imagine they are accurate without them. They are just relying on rpm and pump pressure.
Where do you get Plans to Build this? 28 GPM Hydraulic Log Splitter Pump 2 Stage Gear Wood Splitter Pump 3000 PSI NEW USD $294.88 on eBay would Dyno a fairly high hp engine wouldn't it?
@@DirtyElbowsGarage I have all the mechanical work done. I am using two Hall Proximity magnetic sensors, one for Engine RPM and one for pump shaft RPM . And a load cell for the force. What I'm lacking is the know how to hook up the arduino and the code to make the graph . Thank you for responding .
If you have a chain coupling the pump to the engine (or direct drive) you can simplify things and remove one of the sensors reading rpm. Unless you're keeping the clutch on then maybe it'll be useful for 2. The code I wrote has titles above each section to help translate what's happening. Best I can advise is to work your way through it with your sensors and find individual tutorials on each one before bringing it all together. If you need it I can send you links to the sensors I used but it might cause you to rework what you have.
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![DIY Hub Dyno: Introduction [1]](/img/tr.png)
![Lp. Сердце Вселенной #60 РОЖДЕНИЕ ЛОЛОЛОШКИ [Финал] • Майнкрафт](http://i.ytimg.com/vi/YoR0pAV9FVQ/mqdefault.jpg)
Ready to build your own dyno? I've redesigned the dyno into version 2.0! I've added automatic load control and taken the time to develop all the PDFs, DXFs, programming, parts lists, and more for you to make your own! Check it out here: dirtyelbowsgarage.etsy.com/listing/1560914825/diy-small-engine-dynamometer?Copy&ListingManager&Share&.lmsm&share_time=1694223616442
So this is a high tech Proney Brake. Interesting!
Did you ever make the other Video's ? It would be good to see the finished Dyno. Cheers
This project is actually "Extremely" cool and i'm planning to build my own mini Dyno myself and came over your channel, so if you don't mind i will use some inspiration of your build 😉
At first i planned to use a Alternator but i have a bunch of used hydraulic pumps and motors in different sizes so i'll think i will use them instead, then i can test higher power and torque.
Thanks for a great video and i will have a look at your other videos 👍
Feel free to use what you'd like and good luck!
I agree with Richards completely!!!! And I had seen some using electric as well as the straps and blocks. But I also have several hydraulic components laying around and I really want to build this myself. I have a 660 ish. Lol Yamaha raptor that drag race and have recently setup for the 1/8 mi and this would be the ultimate tuning aid. Could I possibly message you or email for questions? I understand the mechanics but I’m a little behind in computers? I definitely would try to not be a problem. Awesome layout. The hydraulics seems way better to me!!!! Thank you for sharing
Can't wait to see the final video of the whole thing working & Data Acquisition! I'm considering building a brake dyno, but love the looks of this one!
This is sweet. Subscribed
You got a sub from me. I love this stuff. We're building a kart on our channel with the kids and I'd LOVE one of these things!!
Great project ,well done ,I really enjoyed .What kind of pressure are you seeing on the hydraulic gauge when you close of the valve and what is the load on the sensor.
Why is there resistance and memory in the load arm? what sort of pump are you using?
The arm is keeping the pump from spinning with the shaft. The more pressure built up, the more resistance the arm sees. I'm not sure what you mean by "memory" but the pump I'm using is a gear pump.
Dirty Elbows Garage no I understand what a load cell is and the concept of a metered foot for measurement of ft/lbs. what I’m referring to is the pump seems fixed in one location where I think it should naturally rest on the load cell not sit proudly off and when you pull it or push the arm down or up it has a tendancy to return to its original position like a spring will revert to its preset hence it has a memory. Which I questioned what type of pump it is as you wouldn’t get it in a gear pump or a vane pump I imagine as they have clearances so I was wondering whether it was a radial or axil piston pump. That internal vaccum may cause the memory?
Ah I see. Good eye noticing that. So the assembly was completed semi-loosely so some of the bearing mount bolts being tight and some loose caused that. I wanted to do a final alignment and then calibration after the hoses are attached. As you'll probably guess the hoses are the trickiest part of having a free-floating condition. I was able to align, get it tightened down, and still ended up with a slight load offset on the load cell, but with some quick calibration + offset it holds zero. Other pumps definitely have good points to offer but this pump was a cost effective solution. While the flow rate of gear pumps typically sees non-linearity through the rpm range, my daq system works outside of the fluid itself so that shouldn't be an issue.
@@DirtyElbowsGarage Cool, when you end up doing your final diagnosis on the engines, can you add what the PSI rating the pump is plus the pump pressure at maximum horsepower as its an indicator of what that pump is capable at holding in term of horsepower. eg. If the pumps rated to 1500psi and your holding the engine at XXX HP at 4800rpm and the line pressure is 750PSI then we can assume the particular pump is ball park rated at double the horsepower before the pump case explodes hahaha. Can you link the parts too in the description.? Thanks.
Are there any high pressure pwm flow control valves?
Also can you give more detail on the mounting of the pump.
Yes there are, but the ones I have seen cost almost as much as the rest of the dyno. If/when I revisit the dyno I'll be sure to look into this more!
@@DirtyElbowsGarage Why not use pressure to calculate rpm.
Thanks so much for your help.
Ive see people building these without the torque arm and load cell and I can't imagine they are accurate without them. They are just relying on rpm and pump pressure.
Hi there, doing a very similar project for Senior Design. Did you design and build that water pump yourself, or did you purchase it as is?
What is spec to hydraulic motor,what is power & torque you are measuring
Hi! Check out my latest dyno video where I cover quite a bit more.
This can work up to 150-200nm?
Where do you get Plans to Build this? 28 GPM Hydraulic Log Splitter Pump 2 Stage Gear Wood Splitter Pump 3000 PSI NEW USD $294.88 on eBay would Dyno a fairly high hp engine wouldn't it?
I would like to purchase an arduino shield that was sold by 2stroke stuffer, would you happen to have one.
No I don't. I made my setup from scratch, didn't know there was a shield like that. Is that all you need left for your setup?
@@DirtyElbowsGarage I have all the mechanical work done. I am using two Hall Proximity magnetic sensors, one for Engine RPM and one for pump shaft RPM . And a load cell for the force. What I'm lacking is the know how to hook up the arduino and the code to make the graph .
Thank you for responding .
If you have a chain coupling the pump to the engine (or direct drive) you can simplify things and remove one of the sensors reading rpm. Unless you're keeping the clutch on then maybe it'll be useful for 2.
The code I wrote has titles above each section to help translate what's happening. Best I can advise is to work your way through it with your sensors and find individual tutorials on each one before bringing it all together.
If you need it I can send you links to the sensors I used but it might cause you to rework what you have.
Any chance I could get the arduino code for you dyno project.
Here it is: www.dropbox.com/s/xkx060kxx863a2e/Dyno_Data?dl=1
ugh that music.. thank god for the mute button!