Author Topic: Dolmar 500V 4 stroke  (Read 5967 times)

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Offline Nathaniel Vansickle

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Re: Dolmar 500V 4 stroke
« Reply #30 on: May 03, 2014, 08:38:38 pm »
Back on the subject of the 4 stroke chainsaw. 4 stroke saw is probably a long ways from reality at this point. power to weight is nowhere near what even the worst 2stroke saws have and if i were to guess the price per hp is double. after those 2 obstacles are overcome i think it will be a good thing. i don't care about the emission side of things. The torque and ease of starting for some folks will make them appealing. That is what sells the trimmers so i imagine those same attributes would sell a saw.
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Offline fordfairlane78

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Re: Dolmar 500V 4 stroke
« Reply #31 on: May 03, 2014, 11:44:28 pm »
ok I may have spoken too soon. the 335.4 according to the sales flyer is the 360 degree engine and the product book doesn't list it as the 360 engine so idk for sure which it is. ???
  I believe my 245.4 is a 360° as well as I have tried running it upside down and it is fine....no smoke or tapping. ...
Trapped in time, surrounded by evil, low on gas

Offline SawTroll

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Re: Dolmar 500V 4 stroke
« Reply #32 on: May 09, 2014, 11:02:31 am »
A weak 50cc saw weighting like a 70cc saw, no thanks!  ::)

Where did it say it was 14lbs or heavier PHO?  I've been looking for specs but nothing in stone.

Likely the German Dolmar web-site, but it was almost 10 years ago, so I am not 100% sure it was there.
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Offline 3000 FPS

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Re: Dolmar 500V 4 stroke
« Reply #33 on: May 09, 2014, 04:51:16 pm »
A weak 50cc saw weighting like a 70cc saw, no thanks!  ::)

Where did it say it was 14lbs or heavier PHO?  I've been looking for specs but nothing in stone.

Likely the German Dolmar web-site, but it was almost 10 years ago, so I am not 100% sure it was there.

Dang you can remember the weight of a saw from ten years ago.   You have a better mind then me.   
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Offline Cut4fun .

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Re: Dolmar 500V 4 stroke
« Reply #34 on: May 09, 2014, 06:48:43 pm »
Found where I quoted a post from a dealer in US back in 2009.

Posted by US dealer.

Well it's not really top secret, as most you boys and girls know that Dolmar has been working on one. I personally have and probably will always like two strokes as they have a place in my heart. I may have to add a little more room in their for the new Dolmar 4 stroke chainsaw. I was outside at the 2006 Expo and saw the proto type 500V. Walked up to the guy and point blank asked him if I could run it, I think I startled him and he said yes. I suited up with chaps and a helmet. I picked up the saw and first off I noticed how easy it started. I stuck it in the log and WOW!!!!!!!!!!!!!!!!!!!!!!!!!!. I've never ran anything so smooth in my life. It was smoo..........th and quiet. I enjoyed the experience. Asked if I could get pictures and NOPE so you'll just have to wait. I do have a picture of me using it and I'll post it later. Was told production would be June 2007 ( sooner than I would have thought ) with saws in US maybe August. Of course this is projected and I would not write this as the gospel. Pricing at a guess will be 450 ish. I don't believe anyone could ever judge this saw without running it. Dolmar has the technology. Dolmar Rocks.
Yes it was a 50cc engine. The weight was to me ( maybe I was just excited to be able to run it) was light as it didn't feel heavy and I didn't even notice it. Of course 90 per cent of the time I had it it was in the cut. The power was different because I just kept going over in my head how smooth it was but it was not a 5100S. I would say the power is more like a 510 but I can see where a novice or beginner would love the power.

As for design of the engine I can't say because I couldn't see anything under that cover. The top cover looked a little higher but not in the way at all. If I were to rate the experience of this saw I would have to give it a 10 on a scale of 1 to 10 for concept, design, and performance for what the saw is designed for. Again, I'm not a fan of small 4 stroke engines as I've not really seen one yet that I would rather run than a 2 stroke but I may need to rethink that when I see the finished production 500V.
During the Louisville show we did a small test to run the PS-500V vs the PS-510 and the 4-stroke was right there with it in the three cuts, actually the 500V won 2 of the three times with different users. The sound from the 500V is decieveing. It does not sound like a 2-stroke but the torque is there and the RPM is 12,500 no load. This saw is going to surprise everyone next year when it is in production.
MORE ABOUT DOLMAR PS-500V FOUR STROKE CHAIN SAW..PROTOTYPE DEVELOPED IN 04'.USES 70% OF COMPONENTS OF PS-5000 SERIES..49.9CC 2VALVE O.H.V.PUSHROD..FLAT TAPPETS..USES 2CAMS IE..1FOR INT./EXH. TO MAINTAIN THERMODYNAMIC STABILITY..OVERALL HEIGHT IS 28MM(1") HIGHER/2LB. HEAVIER THAN PS-500..REV. LIMITER SET FOR 12,500, CENTRIFUGAL LIFTER FOR STARTING EASE..OIL/GAS LUBE..SIMILAR TO STIHL/SHIND. HYBRIDS ALLOWING ALL POSITION OPERATION..ENGINE OF PS-500 USED AS BENCHMARK WITH A POWER RATING OF 2.5KW(3.3 HORSE),PS-500V HAS 4% MORE,RATED AT 3.4 HORSEPOWER WITH POWER EXCEEDING 2STROKE OVER ENTIRE SPEED RANGE, IN UPPER RPM APPROACHES POWER OF PS-5000 PROFESS.SAW.THIS FIGURES OUT TO 52kW/l(69.6 HP/60CUBE. INCHES) WELL ABOVE BASE RATING OF 45kW/L(60 HP/60 CUB. INCHES) A NEW RECORD HIGH FOR HAND HELD FOUR STROKES..USES 22% LESS FUEL..ALTHOUGH PS-500 HAS EMISSIONS THAT ARE 30-40% LOWER THAN CURRENT AVAIL. 2STROKES AT A READING OF 90g/kWh FOR HC+NO THE PS-500V AT 20g/kWh LESSENS THIS AMT. BY 78%, THIS PUTS THE FOUR STROKE 60% BELOW EUROPE/USA STANDARDS OF 50g/kWH A SUBSTANTIAL DIFF.THIS INFO.OBTAINED FROM A 6-05' EDITION OF MTZ WORLDWIDE, A GERMAN TECH. MAGAZINE..




Offline 7sleeper

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Re: Dolmar 500V 4 stroke
« Reply #35 on: May 13, 2014, 05:56:06 am »
A weak 50cc saw weighting like a 70cc saw, no thanks!  ::)
As if this was a elementary criteria for the homeowner/firewooder who uses his saw a few hours a year...

We won't recapitulate what innovations have sprung out of the husqvarna factory in the last 20 years, that might be a little embarrising....

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Offline Cut4fun .

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Re: Dolmar 500V 4 stroke
« Reply #36 on: September 10, 2015, 07:51:37 pm »
So did the dolmar 500 4 stroke die in the water?  Nothing for a long time now.

Offline Nathaniel Vansickle

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Re: Dolmar 500V 4 stroke
« Reply #37 on: September 11, 2015, 01:41:30 pm »
if all that were true i would buy one in a heartbeat.
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Offline SawTroll

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Re: Dolmar 500V 4 stroke
« Reply #38 on: September 12, 2015, 11:32:34 am »
So did the dolmar 500 4 stroke die in the water?  Nothing for a long time now.

I believe it is safe to say so - looked more like a PR stunt than anything else?

Offline Cycledude

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Re: Dolmar 500V 4 stroke
« Reply #39 on: November 09, 2015, 03:03:10 am »
Years ago Lots of folks thought 4strokes wouldn't work very good for boats, boy were they wrong, I would love to try a 4stroke saw.
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