Porting a STIHL 150TC

[Starscream]

I would suggest that the lifespan of the saw would be increased as the power is increased and the saw would spend far less time bogging/bogged down, when stress levels rise at those parameters. Wouldn't advocate a larger bar though, others views may vary.

 

Fair point.. But what about the carb? Won't it be pumping harder than its supposed to?

I may have misinterpreted the whole subject as I'm not too au fait with the technicals, but wouldn't it be a bit like whacking a turbo on a car but not upgrading the clutch and gear box?

[arboriculturist]

Fair point.. But what about the carb? Won't it be pumping harder than its supposed to?

I may have misinterpreted the whole subject as I'm not too au fait with the technicals, but wouldn't it be a bit like whacking a turbo on a car but not upgrading the clutch and gear box?

 

I think spud is the only one with all the answers!

[spudulike]

A question that has been asked many times. The general abuse and lack of maintenance will kill a saw far faster than my porting. I stay within known parameters when I port and although the saw will develop more power, it has little effect on the life of the saw.

 

Porting increases flow, this flow allows the saw to get rid of the exhaust gasses more efficiently meaning less harmful heat. The carb isn't pumping harder, all you are doing is sucking more air through the carb so more fuel is sucked up in to the carb choke by venturi effect - I have known ported saws develop air leaks and survive where a standard saw may well have failed just due to the extra fuel/oil the saw is using due to the flow.

 

I have saws out there some 3-4 years in professional use that I have ported and still working.

[Treemoose]

A question that has been asked many times. The general abuse and lack of maintenance will kill a saw far faster than my porting. I stay within known parameters when I port and although the saw will develop more power, it has little effect on the life of the saw.

 

Porting increases flow, this flow allows the saw to get rid of the exhaust gasses more efficiently meaning less harmful heat. The carb isn't pumping harder, all you are doing is sucking more air through the carb so more fuel is sucked up in to the carb choke by venturi effect - I have known ported saws develop air leaks and survive where a standard saw may well have failed just due to the extra fuel/oil the saw is using due to the flow.

 

I have saws out there some 3-4 years in professional use that I have ported and still working.

 

:adore: :adore: we are not worthy

[Coletti]

OK - Forget the Echo then Spud!

 

My cs2510tes is nearly as quick as that as standard...

[Bentonarb]

Spud has just ported my 660 and a 150 .

 

Really made a difference to both in my opinion and well worth doing .

 

Highly recommended

[arboriculturist]

Spud has just ported my 660 and a 150 .

 

Really made a difference to both in my opinion and well worth doing .

 

Highly recommended

 

That's quantifiable reassurance - thanks

[spudulike]

Spud has just ported my 660 and a 150 .

 

Really made a difference to both in my opinion and well worth doing .

 

Highly recommended

 

Thank you Graham - how are the ears:lol:

[Stubby]

Spud ported my 346 ( amongst others ) around 2011 ish . Used it yesterday on a windblown beech . In all that time it has had one new spark plug . still going like a feisty whippet ! .

[arboriculturist]

Spud ported my 346 ( amongst others ) around 2011 ish . Used it yesterday on a windblown beech . In all that time it has had one new spark plug . still going like a feisty whippet ! .

 

Happy days - he's finishing same for me and it will be a red letter day for sure when it arrives back