ms 461 woods port race thing

[Stump Shot]

View attachment 107108


should I be happy with this?

Have you tried with your pistons giving the intake side transfers a lead in timing before the exhaust side?

 

[Chainsaw Jim]

Prior to JB welding the uppers, didn't you compensate for the escaping charge by giving the carb more flow?

Also, I noticed the exposed steel decomp valve appears to have it's own wash pattern. Is it retaining enough heat to interfere?

 

[tree monkey]

Have you tried with your pistons giving the intake side transfers a lead in timing before the exhaust side?

no because I would have by far to short of blow down.

 

[tree monkey]

Prior to JB welding the uppers, didn't you compensate for the escaping charge by giving the carb more flow?

Also, I noticed the exposed steel decomp valve appears to have it's own wash pattern. Is it retaining enough heat to interfere?

I was looking for more gains, not what I would call compensating. I did it this way because of the time crunch. had I had more time I would have fixed the tr problem first.

I have no idea

 

[tree monkey]

 

[Chainsaw Jim]

I was looking for more gains, not what I would call compensating.

I know it wasn't a concept of "compensating", I'm just wondering if that's what ended up happening.

 

[Redbull661]

yes and the same chain, only used 1

Stihl RSK ftw!

Headed to USPS to sling shot it across the pond

 

[tree monkey]

I know it wasn't a concept of "compensating", I'm just wondering if that's what ended up happening.

no ,I changed the tr port again, what's more important, speed or piston wash pattern?

I did get gains from the carb changes

 

[tree monkey]

tried a reground square ground work chain

 

[XP_Slinger]

no ,I changed the tr port again, what's more important, speed or piston wash pattern?

I did get gains from the carb changes

So after all that focus on wash what did we all miss? Do you think adding the JB weld to reshape the transfer added enough restriction to choke the port causing the loss of power?

Sounds like the Saw is running great. That’s some damn good chain to go through all that testing and remain consistent.

 

[tree monkey]

7 pin with square ground chain

 

[cus_deluxe]

Just put a 10mm spark plug in the decomp hole, and splice them together.

Sent from my SM-G950U using Tapatalk

Pretty sure he patented that already joe.

 

[tree monkey]

So after all that focus on wash what did we all miss? Do you think adding the JB weld to reshape the transfer added enough restriction to choke the port causing the loss of power?

Sounds like the Saw is running great. That’s some damn good chain to go through all that testing and remain consistent.

yes I think it lost volume, went back in and took about half of what I had left in out.

before epoxt the best cut time was 8.57.
after epoxy was 9.53
after reshaping 7.99

 

[cus_deluxe]

Is the 461 a saw that has a tight case to begin with? Seems like w the long route the transfers take it would ha e a lot of volume. Not much time for transfer at 16k+ rpm tho i guess haha.

 

[Deets066]

yes I think it lost volume, went back in and took about half of what I had left in out.

before epoxt the best cut time was 8.57.
after epoxy was 9.53
after reshaping 7.99

At least you can be happy about sending it now

 

[tree monkey]

I didn't do a stock saw timed cut, started with a basic woods port, timed cuts 10.67, finished saw 7.99.

 

[Stump Shot]

And that friends wasn't just any old monkeying around! Mighty fine job you did here Scott in a short amount of time. Thanks for bringing us along the way.

 

[tree monkey]

At least you can be happy about sending it now

i'm happy with it. I would have taken all the epoxy out if I needed to to get back were it was. it's a race saw, don't care how much fuel it drinks.

 

[cus_deluxe]

Be fun to see it with a hot chain on it

 

[tree monkey]

Is the 461 a saw that has a tight case to begin with? Seems like w the long route the transfers take it would ha e a lot of volume. Not much time for transfer at 16k+ rpm tho i guess haha.

I don't worry about case volume to much, could always do a full circle crank.