What makes a Jonsered "turbo"?

[larboc]

I had someone try to tell me that their Jonsered had a "turbocharger", on it.
Now I see many listings of a Jonsered Turbo chainsaw, but from what I can tell it's just a buzz word used to describe blowing a little bit of diverted cooling air from the flywheel past the air cleaner to help keep dust from settling as quickly.

I want to tell him he's an idiot, but before I do, was there ever any production chainsaw with a turbocharger? Or any kind of forced induction (aside from the crankcase) for that matter?

 

[Matt J Leppek]

Turbo is just jonsereds name for huskys air injection system.

And I don't think they make a turbo charger small enough for a chainsaw

 

[Jess562xp]

The sticker

 

[Freehand]

Ultra low pressure turbo. Produces a staggering .0000000000765468 horse power.

 

[Adirondackstihl]

 

[Chris-PA]

It's just the air filtration system, which is very effective by the way. I don't know the history of forced induction on 2-strokes, but it clearly would have difficulties to deal with.

 

[rupedoggy]

That looks more like a supercharger than a turbocharger.

 

[HEAVY FUEL]

Ultra low pressure turbo. Produces a staggering .0000000000765468 horse power.

I hear you can double that if you take a hammer and bust the shroud off the recoil

 

[SawTroll]

It's just the air filtration system, which is very effective by the way. I don't know the history of forced induction on 2-strokes, but it clearly would have difficulties to deal with.

I don't think there is any history....

 

[barneyrb]

That looks more like a supercharger than a turbocharger.

Centrifugal supercharger to be exact....

 

[Fedaburger]

Day shore soun wike day got toybo's!!:msp_w00t:

 

[WKEND LUMBERJAK]

They do have a whine when you ar back a 100ft or more my 2054 sounds like it has a turbo.:msp_w00t::msp_w00t:

 

[stihlrookie]

Everything that I own with an engine in it has a turbo/NOS button.:msp_biggrin:

 

[WKEND LUMBERJAK]

Everything that I own with an engine in it has a turbo/NOS button.:msp_biggrin:

Pics or its not true...:wink2::wink2:

 

[gw165]

IIRC old Detroit diesels are two strokes with forced induction. If I'm wrong, someone set me straight please.

 

[Jim Timber]

Pics or its not true...:wink2::wink2:

He's got the button, it's just not hooked up to anything.

 

[kevin j]

the detroit 'green meanies' were two strokes, but whole different than saws,which are two cycle gasoline/spark ignited. DDA were diesel, oil in the crankcase, exhaust valves and cam on top, intake ports on the bottom of cylinders sort of like transfers on a saw. That required a positive Roots type blower to get air moving to start it, where a turbo would not work. The blower then pushed air in the bottom of cylinder and out the top, no fuel in the mix. Injected fuel near TDC for combustion.
Many of the later DDA had one or two exhaust driven turbos also.
In military and tank applicaitons, the engines were getting about 1 hp per cubic inch at 2500-3500 rpm. The 1957 injected vette at 1 hp/in3 was a really big deal. The DDA was getting that at one half the rpm's, for minutes or hours instead of seconds on the dyno, so was pretty awesome.

Big ship diesels (50,000 to 100,000 hp at maybe 100 to 250 rpm) still are pretty much the same principles, but the DDA two cycle is gone due to noise and pollution.

 

[imagineero]

It's the same thing that makes a stihl saw a 'magnum'. The sticker ;-)

 

[mountainlake]

They run turbo's on 2 cycle snowmobile engines , certainally no room on a saw. Steve

 

[spike60]

Let's put all that stuff on Sawtroll's scale and find out how much it weighs! :msp_w00t: