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#Post#: 39048--------------------------------------------------
Dolmar 500V 4 stroke
By: Cut4fun Date: April 23, 2014, 12:43 pm
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Just saving pics of the 4 stroke chainsaw dolmar 500 tested out
about 10 years ago. Noticed pics are disappearing now days.
removed 7 pics being hijacked by greedy PB. Sorry.
Added 3 embed pics below. Must be signed in to see.
#Post#: 39053--------------------------------------------------
Re: Dolmar 500V 4 stroke
By: 660magnum Date: April 23, 2014, 1:00 pm
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I bet there wouldn't be any specific parts for that device this
side of the moon?
Appears to have some Solo influence in the design?
#Post#: 39055--------------------------------------------------
Re: Dolmar 500V 4 stroke
By: KilliansRedLeo Date: April 23, 2014, 1:06 pm
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Yeah but it sure would make a GREAT SHELF QUEEN! I want one just
like the one in the pictures. I assume that it was around 50cc.
What did the 'V' stand for in the name, surely not a 50cc 'V'
twin!
#Post#: 39056--------------------------------------------------
Re: Dolmar 500V 4 stroke
By: Chainsawrepair Date: April 23, 2014, 1:22 pm
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Found it in Dolmar history line.
2000
DOLMAR takes the wraps off the prototype of the world’s first
4-stroke chainsaw. The company launches a new range of
professional chainsaws with an unrivalled power-to-weight ratio
of 1.37 kg/kW. DOLMAR introduces the highly efficient Airmaster
air filter system for its new professional chainsaws.
(HTM) http://www.dolmar.com/company/history/
#Post#: 39057--------------------------------------------------
Re: Dolmar 500V 4 stroke
By: Chainsawrepair Date: April 23, 2014, 1:28 pm
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Just digging up info.
Hope this works where you can read on it. Click to make bigger
then click on it again when magnifying glass shows up and you
then can read it clearly.
#Post#: 39117--------------------------------------------------
Re: Dolmar 500V 4 stroke
By: RoyM Date: April 23, 2014, 9:53 pm
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I heard about it, Shindaiwa also had a prototype. Apparently the
torque is something to behold but the world isn't ready for it.
The Naderites haven't forced it on us...YET being the operative
word. I talked to a Shinny rep, he tried an 80cc version in
Japan with a 24" bar and full comp chain. Said it was
unbelievable.
#Post#: 39118--------------------------------------------------
Re: Dolmar 500V 4 stroke
By: 3000 FPS Date: April 23, 2014, 10:34 pm
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The design and materials sounds expensive.
I am impressed that the saw is capable of 12,500 rpm's. That
is a lot for a 4 stroke engine.
#Post#: 39122--------------------------------------------------
Re: Dolmar 500V 4 stroke
By: SawTroll Date: April 24, 2014, 12:50 am
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[quote author=3000 FPS link=topic=3462.msg39118#msg39118
date=1398310450]
The design and materials sounds expensive.
I am impressed that the saw is capable of 12,500 rpm's. That
is a lot for a 4 stroke engine.
[/quote]
Sort of - but power specs was low and weigth very high for a
50cc chainsaw. Rather hopeless effort really. ::)
#Post#: 39134--------------------------------------------------
Re: Dolmar 500V 4 stroke
By: 3000 FPS Date: April 24, 2014, 8:50 am
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[quote author=SawTroll link=topic=3462.msg39122#msg39122
date=1398318639]
[quote author=3000 FPS link=topic=3462.msg39118#msg39118
date=1398310450]
The design and materials sounds expensive.
I am impressed that the saw is capable of 12,500 rpm's. That
is a lot for a 4 stroke engine.
[/quote]
Sort of - but power specs was low and weigth very high for a
50cc chainsaw. Rather hopeless effort really. ::)
[/quote]
I agree but I am surprised they did as well as they did.
I wonder what the compression ratio was I did not see that.
Could be one reason why power was down.
#Post#: 39137--------------------------------------------------
Re: Dolmar 500V 4 stroke
By: RoyM Date: April 24, 2014, 9:08 am
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[quote author=SawTroll link=topic=3462.msg39122#msg39122
date=1398318639]
[quote author=3000 FPS link=topic=3462.msg39118#msg39118
date=1398310450]
The design and materials sounds expensive.
I am impressed that the saw is capable of 12,500 rpm's. That
is a lot for a 4 stroke engine.
[/quote]
Sort of - but power specs was low and weigth very high for a
50cc chainsaw. Rather hopeless effort really. ::)
[/quote]
It may be forced on us whether we like it or not. Yes the
horsepower is low compared to a two stroke but what we have here
is pure torque. The 2 stroke has to be screaming to produce,
once speed drops off it dies. A 4 stroke will keep pulling, that
50cc will likely run 3/8 chain quite happily. Still, I am going
to keep my 2 stroke as long as possible, I like the simplicity
and light weight.
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