Another chainsaw dyno...

[cuinrearview]

Cue the angry stihl fanboys....

One thing I learned today is that if fanboys on either side are triggered in any way by this thread they have bigger worries. If these graphs and numbers give you a boner you should probably just set the powerhead back on the shelf.

 

[sawmikaze]

One thing I learned today is that if fanboys on either side are triggered in any way by this thread they have bigger worries. If these graphs and numbers give you a boner you should probably just set the powerhead back on the shelf.

Especially if you factor in the variables.

 

[markds2]

View attachment 254598

Thanks so much for sharing that Joe, what I find most impressive is the increase in hp and torque over stock right from 5500rpm. Makes me even more excited to get my 500i back from @huskihl !!!

 

[Red97]

500i with/without the bark box.

 

[Bigmac]

Cue the angry stihl fanboys....

Shoot that 572 beat the stock 395, the 572 is the real deal.

 

[drf256]

48mm KS. Popup. TA. No grinding. Ran mesh and flock filter. Not log around to immediately cut on.

I’m sure it ran well. Muffler modded?

034 Super is a true popup jug IMHO. The exhaust port is almost identical to the 10mm 044 jug. Flattest roof I’ve ever seen in a stocker.

Drop that jug over an .040 popup and you’ll be on the heels of a full port job, if not right there.

Would you be willing to share your curve and specs on the popup/build?

And of course, the variables...

 

[Woodpecker]

Doooo-eit Tim... serve the curve

 

[huskyboy]

View attachment 254598

@RI Chevy wanted to see wood and dyno results....... lol here ya go.

 

[RI Chevy]

Thanks. Looks interesting.

 

[Red97]

Here is the 034 super with the mesh filter.

 

[Red97]

Stock 2171 vs stock 046

 

[Johnmn]

View attachment 254612
Here is the 034 super with the mesh filter.

I bet that Tim's saw isn't broken in either.
I wonder what kinda difference that makes on the Dyno?

 

[Johnmn]

Stock 2171 vs stock 046
View attachment 254613

2171 looks nice @cuinrearview

 

[SpaceBus]

View attachment 254599

500i with/without the bark box.

So I showed this graph to my wife, who loves data, and she agreed that my mill saw could be louder if it would mean less total time in the cut/running at max RPM.

What's the most power anyone has gotten out of a 395xp work saw? Still trying to figure out why mine isn't getting any spark, but seeing this dyno thread has me really wanting to get it built.

 

[XP_Slinger]

So I showed this graph to my wife, who loves data, and she agreed that my mill saw could be louder if it would mean less total time in the cut/running at max RPM.

What's the most power anyone has gotten out of a 395xp work saw? Still trying to figure out why mine isn't getting any spark, but seeing this dyno thread has me really wanting to get it built.

Pretty sure the top 395 was from @srcarr52 that Dyno’d over 10hp early in this thread.

 

[huskihl]

So I showed this graph to my wife, who loves data, and she agreed that my mill saw could be louder if it would mean less total time in the cut/running at max RPM.

What's the most power anyone has gotten out of a 395xp work saw? Still trying to figure out why mine isn't getting any spark, but seeing this dyno thread has me really wanting to get it built.

Hi Dakota. Glad to see you over here

 

[SpaceBus]

Hi Dakota. Glad to see you over here

Good to see you here too! I almost called you when my 395xp started having trouble. Thought I sent you a PM, but I'm not seeing it in my outbox. Someone on the Hearth.com forums suggested I make an account here. To be honest this is a much nicer place than AS. I do want to get my 346 fixed some time. I did post some pics of the P&C in my 395xp thread.

 

[cuinrearview]

I’m sure it ran well. Muffler modded?

034 Super is a true popup jug IMHO. The exhaust port is almost identical to the 10mm 044 jug. Flattest roof I’ve ever seen in a stocker.

Drop that jug over an .040 popup and you’ll be on the heels of a full port job, if not right there.

Would you be willing to share your curve and specs on the popup/build?

And of course, the variables...

Build is all farmer jones with off the shelf parts. The popup is Hyway, I did not measure it. The jug was untouched except for a light pass with the diamond ball to create a little more exhaust roof bevel. TA, BGD. When the parts all just kinda found their way here I had remembered your comments on this setup. I left the jug alone because of it. It runs great. I had kind of in my mind figured hp in the 5.5 range and it almost got there. I bet after a few more tanks it would get close. I haven't ran it enough to call it broken in yet.

2171 looks nice @cuinrearview

Thanks John. It surprised me too. I guess there's no need to mod it, port, etc.

 

[cuinrearview]

I didn't see where Joe posted this one. ~40% gains from advertised stock hp but more important is a MUCH more usable powerband now. 20" 8 pin square chain pulled it down a little more than I'm used to on these, but it threw chips all over and kept going. Great job @huskihl

 

[Johnmn]

Build is all farmer jones with off the shelf parts. The popup is Hyway, I did not measure it. The jug was untouched except for a light pass with the diamond ball to create a little more exhaust roof bevel. TA, BGD. When the parts all just kinda found their way here I had remembered your comments on this setup. I left the jug alone because of it. It runs great. I had kind of in my mind figured hp in the 5.5 range and it almost got there. I bet after a few more tanks it would get close. I haven't ran it enough to call it broken in yet.

Thanks John. It surprised me too. I guess there's no need to mod it, port, etc.

Both saws looked good to me! I have at least 1 saw I'd like to have Dino'd its too bad USPS sucks so bad right now!