Another chainsaw dyno...

[Bigmac]

All good strong saws there! Nice job to all the builders!

 

[PA Dan]

I’d send the hybrid back, but it’s not mine to send anymore.

WHAT?

 

[Time's Standing Stihl]

View attachment 250988
Correct cfb hybrid run ^

View attachment 250989
Ranchdad hybrid corrected run
View attachment 250990
Stock vs ported 572
View attachment 250991
Tree monkey long bar 660
View attachment 250992
What the revlimiter looks like... both tuned to 13.5k on the dyno.... but the red one must be the limited coil. As it was tuned above the coil.

Looks like a solid group of runners Joe!!

 

[MustangMike]

Real good stuff, thanks for all the extra work Joe!!!

 

[Duane(Pa)]

I'd say yours is pretty accurate. Well before the breakdown.

Everything is calibrated with the same specs as the first time.

Everything I've tested again has been right on.

This is great news. Repeatable results give credibility to the numbers. As long as everything is in working order, the numbers it spits out are useful for comparisons. Like everyone has been saying... Thanks!!!

 

[Duane(Pa)]

Additionally, if you look in the Book of Excuses, appendix D page 9, you will see. “ Dyno torque arm strain gauge ffuk’t that day”.

 

[Red97]

These runs were made over a month apart.

I'd say Scott has the 066 recipe dialed in pretty well...

 

[Red97]

This is great news. Repeatable results give credibility to the numbers. As long as everything is in working order, the numbers it spits out are useful for comparisons. Like everyone has been saying... Thanks!!!

Thank you, I have a stock 50, and 90cc saw to go back to get my baselines. Long as they are the same it is good to go I figure.
Being calibrated with the same exact weight the numbers should be identical, which they were before/after the break.

Additionally, if you look in the Book of Excuses, appendix D page 9, you will see. “ Dyno torque arm strain gauge ffuk’t that day”.

Well....

Everything was retested. And the new /corrected data was published on the saws that needed.

 

[jk14]

View attachment 251037
These runs were made over a month apart.

I'd say Scott has the 066 recipe dialed in pretty well...

They're some serious numbers there. Nice flat torque curve too. Is that the same saw in both graph's? Very close if it's two different saws.

 

[Red97]

They're some serious numbers there. Nice flat torque curve too. Is that the same saw in both graph's? Very close if it's two different saws.

Different saws

 

[MustangMike]

That is very impressive! I thought it was a re test of the same saw!

 

[Duane(Pa)]

That is very impressive! I thought it was a re test of the same saw!

Me too. Wowzer!

 

[Red97]

Late start. Had to get the pig barn cleaned.

 

[mgr1]

Big Stihl 088?

 

[Red97]

Big Stihl 088?

880

If it matters.

 

[mgr1]

880

If it matters.

Dont matters, not a Stihl guy.

 

[RI Chevy]

Ported or stock 880?

 

[Red97]

Ported or stock 880?

Ported

 

[Woodpecker]

Ported

That makes a big difference.

 

[RI Chevy]

YES SIR...[emoji2957][emoji6]