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Author Topic: What Class?  (Read 2432 times)

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Offline Dean Los Angeles

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What Class?
« on: January 28, 2007, 06:15:16 PM »
Got my bike ready! What class should I run?


Ok, this is an advertising toy from Dolmar chain saws. It never ran very fast.

Quote
Twelve engines are mounted in two rows of six on either side of the drive belt casing. Each engine is held in place by means of two threaded studs that normally serve to secure the guide bar to the chainsaw power head. The individual motors are coupled together in sets of three by means of a double-sided drive belt, making up eight modules in all. The individual engines are not rigidly connected; instead they deliver their torque through the centrifugal clutch that is a standard feature of every chainsaw.

Through a sequence of three more toothed belts the power of the eight modules is transferred to a single output shaft, which in turn drives the clutch for the 5-speed transmission via a twelfth belt. The toothed belt drive also serves to gear down the speed of the high-revving chainsaw engines in the ratio 3.45 : 1, producing a manageable maximum of 4,500 rpm at the transmission unit.

Video:
http://www.youtube.com/watch?v=umZpn610AkE
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Well, it used to be Los Angeles . . . 50 miles north of Fresno now.
Just remember . . . It isn't life or death.
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Offline JackD

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Re: What Class?
« Reply #1 on: January 28, 2007, 09:52:04 PM »
"SHOWMOBILE"
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Offline Sumner

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Re: What Class?
« Reply #2 on: January 28, 2007, 10:20:18 PM »
what I want to know is how do you get 12 chain saw engines fired and running at the same time :?.  I have a hard enough time getting one to run and it isn't a cheap one  :cry:.


c ya,

Sum

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Offline Dean Los Angeles

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Re: What Class?
« Reply #3 on: January 28, 2007, 10:28:45 PM »
Sorry Sum, you are only looking at one side. That's 24 engines. They managed to get 21 fired on the one run they described.
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Well, it used to be Los Angeles . . . 50 miles north of Fresno now.
Just remember . . . It isn't life or death.
It's bigger than life or death! It's RACING.

Offline RidgeRunner

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Re: What Class?
« Reply #4 on: January 28, 2007, 10:56:37 PM »
FWIW the 45$ Dolmar I picked up used at a tag sale has started, run, and performed better for me than the Homelite, Jonsereds, and Stihl that I had purchased new over the years.

                                               Ed Purinton
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Offline JackD

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Re: What Class?
« Reply #5 on: January 29, 2007, 12:00:25 AM »
To make sure they are all running you do it just like I did on my first Go-Cart.
My little brother put his index finger on the exhaust pipe until it smoked.
You just gotta get more little brothers or keep catching the same one.
It works for spark too.
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"I would rather lose going fast enough to win than win going slow enough to lose."
"That horrible smell is dirty feet being held to the fire"
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