Another chainsaw dyno...

[Red97]

Great gains, Joe! Did you epoxy the transfer caps like others have?

Yes, but I didn't see but 1 pin hole where I even needed it.

 

[Piston Skirt]

Broken in (30-40 tanks) stock.
Removed spark screen was the only thing done. These really do wake up... much better than my brand new one...

Told ya

 

[Red97]

Some more 390 fun. Pretty happy with the gains from these.

 

[Nutball]

I'd like to feel that one in wood to see what constant HP and variable torque feel like, compared to the low end of the graph with a curve of constant torque and variable HP. Do you think the clutch starts slipping at 7000rpm? It would be nice to have a crank rpm sensor to compare the chain rpm to to detect slip.

 

[huskyboy]

I'd like to feel that one in wood to see what constant HP and variable torque feel like, compared to the low end of the graph with a curve of constant torque and variable HP. Do you think the clutch starts slipping at 7000rpm? It would be nice to have a crank rpm sensor to compare the chain rpm to to detect slip.

Guess the graph explains a little if you look closely? Torque at max power looks to be around 4.6ft lb on both stock(roughly 7.5hp and 4.5ft lb at 9000rpm) and ported
(9.01hp and 4.6ft lb at roughly 10,400rpm). I wood guess that rpm would be around what they want to hold in the wood. So maybe in the wood the torque curve feels similar but the ported one cuts faster? I think the torque output at max power rpm might be the torque number to look at?

 

[Red97]

Sorry fellas, printer is down. Have to deal with the picture of the screen.



Ported 395 really needs a higher rpm coil to show better on the dyno.

 

[huskyboy]

Ported 395 really needs a higher rpm coil to show better on the dyno.

Nice, I usually turn my 395 up to 13.8-14k with a lite 4 stroke for a race or test. 12.8-13k for work milling usually. Didn’t know they put limited coils on certain ones?

 

[RI Chevy]

Looks like Stihl FTW!!!
What happened to all hale to the king???
LMFAO

 

[Red97]

Looks like Stihl FTW!!!
What happened to all hale to the king???
LMFAO

I must be a bit better with the newer stihls.

Just one builders offering on these 2 saws.

 

[RI Chevy]

Lol.
I was just trying to get everyone fired up!!! [emoji16]
They are as close as you can get there...

 

[TreeLife]

Looks like Stihl FTW!!!
What happened to all hale to the king???
LMFAO

The husky does this funny thing where it oils well out the gate without mods, has an adjustable carb, and can keep its own air filter clean lol still the king stihl boy

 

[RI Chevy]

LMFAO.
You forgot spit out screws and *s-word.

 

[TreeLife]

LMFAO.
You forgot spit out screws and *s-word.

I never lost a screw out of ANY modern husky. 2260, 372, 395, but enjoy that novelty while it lasts. When the 3 series are faded out and its nothing but 5's with knurled bottom fastener, That nonsense is over

 

[RI Chevy]

LMFAO. You're so serious Dominick. Relax bud. It's all good...
Of course they don't fall out any more. They're using Stihl screws now...

 

[Moparmyway]

LMFAO.
Of course they don't fall out any more. They're using Stihl screws now...

Probably your best response yet, ever

 

[Red97]

Finished the 461, solid gains. Should break in well too.

 

[RI Chevy]

Pretty consistent runs. Nice job.

 

[BonScott46]

Brand new 461r vs the broken in echo.
View attachment 293649
View attachment 293650

Is this the same 461r? It seems to have much better numbers stock in this graph.

 

[Red97]

Is this the same 461r? It seems to have much better numbers stock in this graph.

Yes, you were right, that was a different saw that was over written on the same file.

I fixed it

 

[RI Chevy]

So
Is the DYNO averaging out the runs of same saws? Or is it that some are just stronger than others???