Echo cs 490 porting

[Backtroller]

that's really cool Al, nice work. I'd love to see how one of your 026 compares too. Torque vs rpm

Great seeing some different builds

 

[Red97]

The fastest 026 I've ever built is en route to Adirondack Stihl.

This echo is fast. Will be faster if I could lean it a bit, I think.

Or a bigger carb.

The most I saw was 13,600, no air filter.

Definitely think these can be made a 50cc contender in a woods ported setup.
Might not be the fastest ever, but can be made to hang with the others.

Ill post all the carb mods here, and have some more testing to do when I get home, see how the stock 261c stacks up.

 

[drf256]

It's a nice little saw that can swing a 20" around no problem.

I really like it.

 

[drf256]

I'm hoping the comp stays put. That's after a half tank of gas.

 

[jake wells]

now port the 590!

 

[Red97]

now port the 590!

Patience grasshopper...

That is next, but I am currently 500 miles away from it. All my parts should be waiting for me when I make it home late next week.

 

[Red97]

I'm hoping the comp stays put. That's after a half tank of gas.

Anything you would do differently next time, knowing what you do now?

 

[drf256]

Anything you would do differently next time, knowing what you do now?

Cut less out of the base and chamber. Finding a suitable flat top piston would be nice.

I'm running .026 squish IIRC.

 

[jmssaws]

Kool build guys,I'm going to get me a echo to tinker with.

 

[Termitebuffet]

Kool build guys,I'm going to get me a echo to tinker with.

I know right .....making me want one of the ugly little rascals ....lol

Zoo City Sawz

 

[drf256]

I know right .....making me want one of the ugly little rascals ....lol

Zoo City Sawz

Mines kinda sexy.

 

[Termitebuffet]

Mines kinda sexy.

Pics ?.....[emoji200]

Zoo City Sawz

 

[Red97]

Kool build guys,I'm going to get me a echo to tinker with.

Small saws are fun... shoot you could run 2 of these since ya so used to an 066

I know right .....making me want one of the ugly little rascals ....lol

Zoo City Sawz

Hey now Mr pig....

Now ya chime in

Mines kinda sexy.

This ^^^

 

[Red97]

Pics ?.....[emoji200]

Zoo City Sawz

 

[Termitebuffet]

Needs a sticker ........lol ....[emoji2]

Zoo City Sawz

 

[Termitebuffet]

So what's the deal on this h circuit that prevents leaning out ?

Zoo City Sawz

 

[Red97]

Needs a sticker ........lol ....[emoji2]

Zoo City Sawz

Don't think I could handle the Xtra powa a sticker adds

 

[Termitebuffet]

Don't think I could handle the Xtra powa a sticker adds

I think an Xtra potatoes sticker should gain about 750 rpms .....lol

Zoo City Sawz

 

[Termitebuffet]

Small saws are fun... shoot you could run 2 of these since ya so used to an 066



Hey now Mr pig....

Now ya chime in[emoji14]




This ^^^

I've been financially embarrassed lately ....lol [emoji13]

Zoo City Sawz

 

[drf256]

I think an Xtra potatoes sticker should gain about 750 rpms .....lol

Zoo City Sawz

Xtra Plastic may apply here.