Chainsaw Dyno?

[Blasterman]

If I can help you i sure will with pictures or anything else

 

[Ronie]

If I can help you i sure will with pictures or anything else

Thanks, I think i have a good understanding of how to put it together. One thing I'm not sure of is what size pump I should be looking for.

 

[Ronie]

Here's a better diagram of what I'd like to put together. It's not my drawing, it was done by chadihman on AS.

 

[Red97]

Here's a better diagram of what I'd like to put together. It's not my drawing, it was done by chadihman on AS.

That is basically my setup. Just waste the water vs a tank.

Most any pump will work as long as it handles the rpm.

With a closed system heat and air in the fluid may cause repeatability issues

 

[Ronie]

That is basically my setup. Just waste the water vs a tank.

Most any pump will work as long as it handles the rpm.

With a closed system heat and air in the fluid may cause repeatability issues

Thanks, I'm going to give it a go later this year. I figured I'd put a cooler on it to keep the heat down.

 

[Ronie]

Danzco/6k products can make them but it will be 2-500$ sprocket most likely.

I'm going to give these guys a call and see how much a sprocket from them will cost.

 

[Red97]

I'm going to give these guys a call and see how much a sprocket from them will cost.

That is who I got my 14 from. Want to saw it was around 160$

 

[Farminkarman]

Anyone interested in a chainsaw Dyno?

Built mine last year, and have most all the bugs worked out now. Almost 1000 runs on the current setup.
View attachment 285


If you all want to see some build/progress pics along the way let me know and I will dig them up.

View attachment 291
Here is a printout from the dyno system. I use a waterbrake, with shafting/fatherless chain to mount the powerheads on.

Runs are done just like cutting wood. High/max rpm then I start applying the load and bring them down to 5000 rpm over a 9-12 second time.

Joe, if you are deciding to be done with the dyno, I sure do hope someone else carries on with it. It is nice to be able to see real numbers and truly compare different saw platforms.

 

[Red97]

Joe, if you are deciding to be done with the dyno, I sure do hope someone else carries on with it. It is nice to be able to see real numbers and truly compare different saw platforms.

I'm not done with it at all. I plan to keep going. Maybe add a second one too.

 

[Shadco]

I'm not done with it at all. I plan to keep going. Maybe add a second one too.

Do you happen to have results from a sausage stuffed 346?

.

 

[Farminkarman]

I'm not done with it at all. I plan to keep going. Maybe add a second one too.

Whew!

 

[Buxton_Work_Saws]

Definitely a sick setup! Appears Much easier to just pay you lol.

 

[Justsendit]

Definitely a sick setup! Appears Much easier to just pay you lol.

Totally agreed!! The buildup itself in not only money but time would be a big project to take on outside of regular job duties.

 

[Red97]

Do you happen to have results from a sausage stuffed 346?

.

I think I have one. I'll have to look

 

[Red97]

Do you happen to have results from a sausage stuffed 346?

.

Stout little critters.

 

[Farminkarman]

View attachment 537

Stout little critters.

Joe, what is the difference between the three runs?

 

[Red97]

Joe, what is the difference between the three runs?

Tune was turned up in the higher 2. Prolly would have liked even more rpm.

No 2 runs are ever truly identical. But those 2 higher runs are only. 09 apart.

I have been averaging runs a lot more to show a better picture.

 

[Shadco]

View attachment 537

Stout little critters.

Fanks.

.

 

[Blasterman]

Thanks, I think i have a good understanding of how to put it together. One thing I'm not sure of is what size pump I should be looking for.

Not sure what size I have. The first one was too small and the one that I have now is off the press at work that has a leak in the seal and they put a new one on and I asked for the old one. It was running to fast and so I had to gear it down and it seems to work fine.
I need to make some changes to the holding tank and get it above the pump so it can get the oil easier. It is maybe starving at the highest rpm for oil. In a few months I will get back to it.
I have changed things from the start and it will be better to just start over and try to make all the changes that I can think of.

 

[Blasterman]

Some pictures of the first go around