Another chainsaw dyno...

[Red97]

Thanks Joe. This video lays a lot of guessing to rest. I would love to see a similar video for the other size classes.

Only one left is the modern 60cc

Did the 90, 50,35cc classes

 

[Ketchup]

Oh, nice. I guess I better catch up on my YouTube.

I humbly request 25cc and 100+cc.

 

[Red97]

Oh, nice. I guess I better catch up on my YouTube.

I humbly request 25cc and 100+cc.

I need to find a 3/8 sprocket that fits the 151

 

[Duane(Pa)]

What happens on the dyno when you change rim size? Is there torque to be had with a smaller rim?

 

[Red97]

What happens on the dyno when you change rim size? Is there torque to be had with a smaller rim?

This is to simulate crank power. So the ratio is corrected as if the dyno is reading from the crankshaft itself.

 

[lehman live edge slab]

I need to find a 3/8 sprocket that fits the 151

I believe they make one to put 3/8” picco them

 

[Nutball]

I need to find a 3/8 sprocket that fits the 151

Make one fit.

 

[Bwolf]

I still think 372xp oe can be made to reach 9hp mark..... I wasn't milking everything it had anyway

@NightRogue, did you supply both of the 372 oe’s and do the porting?

 

[Red97]

@NightRogue, did you supply both of the 372 oe’s and do the porting?

Yes he did

 

[NightRogue]

@NightRogue, did you supply both of the 372 oe’s and do the porting?

Yes sir i did

 

[Bigmac]

Well now I know I really don’t need a new saw, my old junk is fine, the 372 oe and 7900, were a little disappointing and was surprised by the 461, it has grunt, and the dyno shows it

 

[farminkarman]

Well now I know I really don’t need a new saw, my old junk is fine, the 372 oe and 7900, were a little disappointing and was surprised by the 461, it has grunt, and the dyno shows it

Would love to see the ported 7900 and 461 results.

 

[Wolverine]

Nuther good one Joe. How many hours did it take to produce that?

 

[jcf86mod]

Would love to see the ported 7900 and 461 results.

Great informative video thanks @Red97

Do you now port all these and then retest to see which responds best to porting?

 

[Red97]

Would love to see the ported 7900 and 461 results.

I will be porting A 6401/7900, that 461, 500i and the 7310 soon.

Nuther good one Joe. How many hours did it take to produce that?

Thank you.

Close to 8 hours plus gathering all the saws. 572,372,462 were all bought for the test. Luckily the others were sent in.

Great informative video thanks @Red97

Do you now port all these and then retest to see which responds best to porting?

I will be porting most all of these. But those will likly be single or pairs of videos not 1 big video like this.

 

[jason miller]

Very interested to see the 60cc class.

Do you still have that 550 from the 50cc video? Any interest in running a 545 against it to see how the “5” series Husqvarnas compare to their more expensive counterparts? I have one with ~3 tanks through it...

 

[Red97]

Very interested to see the 60cc class.

Do you still have that 550 from the 50cc video? Any interest in running a 545 against it to see how the “5” series Husqvarnas compare to their more expensive counterparts? I have one with ~3 tanks through it...

Working on gathering the 60cc still.

Might have to try that sometime.

Thank you for the offer.

 

[David Young]

Working on gathering the 60cc still.

Might have to try that sometime.

Thank you for the offer.

What 60’s do you have or need?

 

[MustangMike]

I have a MOFO 360 if you need something to keep you honest!

 

[RI Chevy]

He already ran a MOFO 036, 361, 262XP as well as a few others Mike.