Date: Thu, 3 May 2007 09:01:09 -0400
Reply-To: Benny boy <huotb@VIDEOTRON.CA>
Sender: Vanagon Mailing List <vanagon@gerry.vanagon.com>
From: Benny boy <huotb@VIDEOTRON.CA>
Subject: Re: More Conversion engine stuff.
Content-Type: text/plain; charset=ISO-8859-1
My SV1000S (V-Twin)
http://www.benplace.com/moto/sv1000s16.jpg
as about 70f/p of torque and about 115 hp
There is 2 problems with motorcycle engine, even the bigger one that have
more than 160hp and over 100f/p of torque (like the GSX-1300). The need for
high RPM to produce power (peak power is often obtain around 3/4 of the
red-line) and the "Fragile/frailty" engine parts (rods, pistons, crank) are
not design to push/pull heavy weigh but design for high RPM, you would
probably break a rod in a few miles trying to push a 7-9 time heavier
véhicle. Even the biggest V-Twin would break, V-Twin have the most torque,
but still.
Boxer engine do produce a good low torque, i think that one of the most
impressive engine out there is a Boxer, the Honda Goldwing engine, started
as a 4cyl 1000cc in 1975, and today, it's a 6cyl at 1832cc, one of the most
reliable and smoothest engine that i have ever seen. I have seen Goldwing
with more than 250k miles on it, remember, it's a motorcycle! Before, most
motorcycle engine were not built to last, they were built for power, in the
80-90, a sport motorcycle engine was pretty much done at 20-25k miles and in
need of a rebuilt. I have worked at a Honda dealer (Bike's) and i was alway
amazed by that engine. And remember, this engine as withstand time... and
still, it's design to rev's in the 9000 rpm range.
horizontally opposed engine have everything for them, it's just a question
of physic. Yea, i know, some of you will tell me that gravity does's do good
to a Boxer engine. I simply don't agree. An old Honda mechanic (still a
friend today) told me about how horizontally opposed engine works... he was
telling me that story how everything feel nice inside, you should here him
tell that story, i real good mechanic, we don't see guys like him today.
Here is just one sentence that i always remenber...
"""Those pistons lay down on a nice and even red carpet of oil, pulling and
pushing each others like a ballet""" (it's the best English translation i
could make)
in the late 70', Honda put out a engine/bike to enter the V-twin class,
mostly to beat Harley at the time, so they came out with (at that time) a
very small, stange and powerfull engine, the CX series bike, the engine was
500cc, TRANSVERSE V-Twin, and, with a Turbo, yea, it was the first of it's
kind. At 82hp, it was quite somthing at the time. Believe me, i have owned one.
http://www.youtube.com/watch?v=03tL05MI2A4
Or, ihave to show you a last picture, talking about rusty engine:
http://www.benplace.com/gpz/gpz4.jpg
Anyway, that was my morning story, i hope i haven't bored anyone.
Motorcycle engine was my way into mechanic, i just love them.
Regards, Ben
On Wed, 2 May 2007 11:45:06 -0700, David Marshall
<mailinglist@FASTFORWARD.CA> wrote:
>Lots of horsepower and no torque... you need torque more than you need
>horsepower!
>
>David Marshall
>
>http://www.hasenwerk.ca
>http://www.fastforward.ca
>
>Box
>4153, Quesnel BC, Canada V2J 3J2
>
>On Wed, May 2, 2007 11:30, Don
>Hanson wrote:
>> Has anyone ever tried a two cylinder motor in a
>Van? Or maybe two Hardley
>> Davidsons, for adequate hp?
>Seriously, some of the bigger "Metric"
>> V-twins make
>big power and are very light..I think there are some opposed
>> 4
>motorcycle motors out there also...Wonder what a Goldwing uses? They
>> have to weigh as much as a Vanagon or a Hardley..
>>
>Kidding, I kid the Hardly 'non-conformist outlaws'...by the thousands..
>> Ducking,
>> Don Hanson
>>
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