Compact tuned exhausts for a woods saw?

[IndyIan]

Just wondering if anyone has done this or seen this done?

I think that with a few curves in the exhaust path there would be enough space in front of the saw to get a tuned system in there. Maybe you would have to run a slightly longer bar to get the same cutting length.

It seems like this would make a lot of sense but I'm no husqvarna engineer

Ian

 

[romeo]

Are you talking about a compact expansion type system? I thought about making one that was rolled up like a cinnamon roll. Honestly, I don't think the gains are worth it. Besides, keeping it compacted would collect heat.
A good duel port muffler is as far as I would take a work saw.

 

[timberwolf]

Suppose there could be some power to be had, but there are problems.

Cost
Weight
Bulk
Noise
EPA police

Heat, the pipe allows more fuel to be burn, can the jug remove that much heat on an ongoing basis.

Compression may need to be droped to keep it from blowing up if bogged too much.

Powerband (pretty much any extra power a pipe can give at peak is suddenly less than muffler output as soon as it drops out of the powerband).

 

[troutfisher]

My pipe seems to crack easily, might be a pain on a work saw.

 

[blis]

Suppose there could be some power to be had, but there are problems.

Cost
Weight
Bulk
Noise
EPA police

Heat, the pipe allows more fuel to be burn, can the jug remove that much heat on an ongoing basis.

Compression may need to be droped to keep it from blowing up if bogged too much.

Powerband (pretty much any extra power a pipe can give at peak is suddenly less than muffler output as soon as it drops out of the powerband).

if you could get a real tuned pipe with 3 part expansion chamber you could get really wide powerband if you wanted, but the pipe is simply too big to be fitted on work saw...

 

[RaisedByWolves]

A pipe in a woods application would suck.



The power band would be razor thin and it would be near impossible to keep it on the pipe.

 

[timberwolf]

Power band can be extended in width but at the expense of the peak power it can produce. One guy here a year back had some good luck with a milling pipe.

Real world on a work saw for the extra expense, weight and space a few more CC's would give more than what a pipe could. ($ for $, ounce for ounce).

 

[blis]

A pipe in a woods application would suck.



The power band would be razor thin and it would be near impossible to keep it on the pipe.

as timberwolf said, its just matter of how the pipe is tuned.. BUT for woods application, heinhelmz resonator (or something like that) would work, basicly it would mean that pipe could be a small box (like it is already) that resonates at correct rpms, which would lead to similar benefits than tuned pipe...