Another chainsaw dyno...

[Red97]

Are you going to run this saw and a couple others again after you get the new parts to see how consistent the graphs are??

That is the plan.

 

[Red97]

Long as nobody objects I'll re run them all when the repair part shows up. Supposed to ship Monday...

I feel the 60's are inline, but maybe the arm was compromised by the time the hybrids hopped on.

Everything seemed normal, still 0 fine. But could have been floating away little by little.

Let's not get too riled up just yet.

 

[dall]

Long as nobody objects I'll re run them all when the repair part shows up. Supposed to ship Monday...

I feel the 60's are inline, but maybe the arm was compromised by the time the hybrids hopped on.

Everything seemed normal, still 0 fine. But could have been floating away little by little.

Let's not get too riled up just yet.

lol dammit its fun to watch

 

[Dieselshawn]

Just got back to reading this thread.

Sucks the dyno needs repairs.

But sounds like everyone is having fun!

 

[Red97]

Just got back to reading this thread.

Sucks the dyno needs repairs.

But sounds like everyone is having fun!

Nature of the beast

If it tells anyone anything.

The readout box had 8hr on it when i got it.

We are at 41hr now....

 

[Dieselshawn]

Your dyno is getting the proper use it should be getting.

That’s 33 hours of fun

 

[Dieselshawn]

Imagine 33 hours of cutting logs and how much chips is left behind to see how much faster that saw got with some finicking with dremels, lathes and screw drivers.

 

[Fruecrue]

Great thread!
Whatever is being charged for these dyno runs isn’t enough.
There’s a small fortune in that machine and it’s up keep.
Next we have to consider the time put in to set up, Fabrication, getting a good run, breakdown, graphing, packing, shipping, Communicating with customers, Troubleshooting, etc....
Finally, never discount the opportunity costs associated with giving much of your time to something like this.
Then... to keep a level head.
I’m impressed to say the least, well done.

 

[RI Chevy]

HARRUMPH
Send in the 7900 stroker for a run.

 

[Fruecrue]

HARRUMPH
Send in the 7900 stroker for a run.

I’m not against it.
My dummass had the fuel line kinked at Randy’s and it didn’t get to run, might as well see what she’s got!

 

[RI Chevy]

Redemption...[emoji2957]

 

[Deets066]

Deets I remember you mentioned your hybrid had the stock HD17... what carb do you have in your hybrid Mike? HD11 or HD50 with larger jet? Shafts thinned/venturi cleaned up? Stock?

Hd17 with no choke, thinned shaft, & massaged Venturi

 

[Time's Standing Stihl]

Long as nobody objects I'll re run them all when the repair part shows up. Supposed to ship Monday...

I feel the 60's are inline, but maybe the arm was compromised by the time the hybrids hopped on.

Everything seemed normal, still 0 fine. But could have been floating away little by little.

Let's not get too riled up just yet.

I wasn’t trying to take anything away from Mike and his hybrid. He builds a damn good saw. Evidently he fingered out a damn strong recipe.

Nice job Silver Eagle!

 

[Deets066]

It’s only one piece of the puzzle. If only it had a good chain and smooth operator I might have something. Lol

Having a stronger saw on the dyno absolutely doesn’t mean you’ll win the race.....

 

[Dieselshawn]

Having a stronger saw on the dyno absolutely doesn’t mean you’ll win the race.....

That is very true. On my dyno, my 660 is the strongest against my logging buddy’s 660.

But his skills as a logger makes me the loser.

But switch saws, he still wins..... by a larger margin.....

 

[Bigmac]

The dyno needs to be named....."heartbreaker"

That’s everybody’s name for a Dyno, Unless they’re on top! Lol

 

[Red97]

Having a stronger saw on the dyno absolutely doesn’t mean you’ll win the race.....

It looks like a huge jump in the numbers. But we are still only talking 6.8%

Peak to peak.

Plenty of room to go either way in the wood.

 

[Bigmac]

Having a stronger saw on the dyno absolutely doesn’t mean you’ll win the race.....

That is true in every sense of the way! Setup is so important! That goes for every form of motorized racing

 

[Red97]

I wasn’t trying to take anything away from Mike and his hybrid. He builds a damn good saw. Evidently he fingered out a damn strong recipe.

Nice job Silver Eagle!

I didn't take it that way at all. But I myself find it hard to say anything is 100% the same day the dyno broke.

Only way I can be sure.

 

[usmcbuckwild]

That 0.00% variable is not really possible. Everything has a margin of error.

Auto load valve, sounds good. But another 1k$+ option by the time I get it All working right.

Those are intended for more predictable power plants. You have to set all the parameters to where you think the power is going to be etc.

Most agree they are very difficult to dial in on higher power 2 strokes.

Let alone trying to measure almost 0 tq on some of the smaller saws.

This was the reason I went with a reputable dyno company. They have everything already figured out after selling systems from 1hp to 6000 +hp.

In hopes of being "accepted" as semi reliable data.

Again, Joe, I’m not critiquing you at all! I am extremely envious and quite humbled that you got a dyno together and running. Please don’t take it the wrong way!! If i knew how to help you, believe me I 100% would no questions asked!! I’m just an “outside looking in” trying to help. I watched the videos and saw how you work the valve, it is consistent. I don’t see how you could do any better than what you are (without spending a *s-word-ton of money) and was thinking out loud. Kudos to you for building the dyno, kudos to you for sharing it with others and kudos to you for sharing the results with all of us. This is by far my favorite thread. Please don’t take me the wrong way, I was NOT being critical of you in any way.