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Author Topic: 86 CR 500  (Read 12196 times)

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Offline JimmyMoto832

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Re: 86 CR 500
« Reply #15 on: January 19, 2011, 06:03:35 PM »
Quote from: JETZcorp on January 19, 2011, 05:34:07 PM
Your CRF has more than 65 horsepower (CR500 number)?  Holy shit!  How big is the turbo?!

Put the glue bottle down..

There's not a stock modern 4 stroke that makes 65 hp.

They make more in the range of 55 hp and that old 86 comes in around the same, maybe a little less.

Its just how its delivered amongst other things, that make them SO different...
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Offline opfermanmotors

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Re: 86 CR 500
« Reply #16 on: January 19, 2011, 06:15:42 PM »
Ya I know, my John Deere makes 800 HP, damn modern 4 strokes and their power delivery!

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Offline evo550

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Re: 86 CR 500
« Reply #17 on: January 19, 2011, 08:51:07 PM »
Quote from: JETZcorp on January 19, 2011, 05:34:07 PM
Your CRF has more than 65 horsepower (CR500 number)?  Holy shit!  How big is the turbo?!
Jetz,
The only place CR 500's had 65 hp was at the brochure.
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Offline factoryX

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Re: 86 CR 500
« Reply #18 on: January 19, 2011, 09:19:58 PM »
with pipe and carb, they pushed 70hp... porting,  :o
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I ride an 03 yz250, wait 04, wait 05, what ever, they're all the same #$@% YOU!

Offline SachsGS

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Re: 86 CR 500
« Reply #19 on: January 20, 2011, 02:08:17 AM »
I'd compare weight and torque figures for the two bikes.The CR500 was tuned for rideability and can easily produce more then 60 rear wheel horsepower.
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Offline factoryX

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Re: 86 CR 500
« Reply #20 on: January 20, 2011, 10:43:09 AM »
"55" was stock with factory tuning.... ;)
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I ride an 03 yz250, wait 04, wait 05, what ever, they're all the same #$@% YOU!

Offline opfermanmotors

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Re: 86 CR 500
« Reply #21 on: January 20, 2011, 11:10:03 AM »
Not sure how much you can tune a steam engine made out of pine cones.  I don't think metal or gasoline was invented until 2004 with the 4 stroke, so was impossible 20 years ago to have a machine with a power band.
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Offline Turquine

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Re: 86 CR 500
« Reply #22 on: January 20, 2011, 12:50:46 PM »
You want to try and compare a CRF450 against a CR500? This might help --->

CR500's vs CRF450r's

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Offline JETZcorp

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Re: 86 CR 500
« Reply #23 on: January 20, 2011, 12:53:50 PM »
This is off-topic a bit, but don't underestimate the power of a steam engine.  They had those things putting out over 5,000 horsepower in the '30s, which is more than what their diesel-electric replacements produce today, for the most part.  The primary reason they went out of favor was their water consumption and the fact that you need two men per engine, while a diesel let you run multiple engines on a single crew with simple electronics.  With a system to condense spent steam and modern computerized systems to take workload (and therefore cost) off the crew, steam may rise again for extreme heavy-load applications (railroads and shipping) as diesel fuel prices rise.  I read somewhere that some railroad in Switzerland just got some brand new steam engines a few years ago and are using them quite economically.

Anyway, as I said before, that's way off-topic.[/digression]
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Is this Maico a 440 or only a 400?  Well in all the confusion, I forgot myself.
But considering this is a 1978 Magnum, the best-handling bike in the world, you have to ask yourself one question.
Do you feel lucky, punk?

Offline factoryX

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Re: 86 CR 500
« Reply #24 on: January 20, 2011, 01:05:36 PM »
but they where a ticking time bomb, have you seen a boiler explosion?
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I ride an 03 yz250, wait 04, wait 05, what ever, they're all the same #$@% YOU!

Offline JETZcorp

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Re: 86 CR 500
« Reply #25 on: January 20, 2011, 01:19:26 PM »
Boiler explosions were a fairly rare occurrence, and were usually a result of a failure of the safety valve (which ensures that the pressure never goes above safe levels) or a serious error from the fireman who's supposed to be watching that kind of thing.  Usually both had to take place at once.  Like when Mythbusters did their experiment with the exploding water heater, they had to disable multiple safety systems in order to make it fail.  I don't see the safety angle being much more of a concern that the use of jet engines today on airliners.  Lose a fan-blade on one of those bad boys and it's all over, yet flying is still safer than walking to the neighbor's house.
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Is this Maico a 440 or only a 400?  Well in all the confusion, I forgot myself.
But considering this is a 1978 Magnum, the best-handling bike in the world, you have to ask yourself one question.
Do you feel lucky, punk?

Offline SachsGS

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Re: 86 CR 500
« Reply #26 on: January 20, 2011, 04:52:07 PM »
Those CR500's are gone!

The problem with the old steam engines was that their thermal efficiency was very low,most of the energy flew out the chimney in the form of waste heat.The advantage of a steam engine (like an electric motor) is that they are capable of tremendous torque from zero r.p.m.(which made them well suited to rail applications).Some of the old steam cars from the early 20th century were "rockets".

If you truly want to compare a CR500 to a CRF450 - compare reliability. :-X
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Offline factoryX

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Re: 86 CR 500
« Reply #27 on: January 20, 2011, 08:31:36 PM »
psh the 500 wins that contest.  ;D
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I ride an 03 yz250, wait 04, wait 05, what ever, they're all the same #$@% YOU!

Offline opfermanmotors

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Re: 86 CR 500
« Reply #28 on: January 20, 2011, 09:01:00 PM »
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Offline opfermanmotors

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Re: 86 CR 500
« Reply #29 on: January 20, 2011, 09:03:05 PM »
The scary parts?  A 450 doing 11K RPM.  A big bore2 stroke is lucky to do 8K.
A 250F doing 13K RPM! 
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Modest beginings start with a single blow of a horn, man.
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