Motorcycle - Lowest HP to achieve 200mph

[Roland6250]

Any ideas of what the lowest horse power has been for a motorcycle to achieve 200mph???

[Seldom Seen Slim]

You'll need to define motorcycle better.  If you mean any two-wheeled racer out here it'll be something like the BuddFab streamliner that will get there with very low hp.  I don't think they've gone 2 bills with that bike, but they've gone really fast with low power.

If you mean a sort-of normal sit on bike -- it takes about 200 hp to go 200, assuming regular factory fairings or even a well-designed aftermarket set of plastic.

Let's see if anyone bites on your query.

[maj]

No numbers, but nice bodywork like Hudsons brings the goal posts much closer

getting to the point where you need to specify a body class or the numbers will vary a whole lot

[Dean Los Angeles]

The 250 streamliner record is 198, 350 record is 210.
650 Partial streamlined 202
750 naked 200.

[55chevr]

Buddfab went 137 mph with a 50cc Aprilia engine ... that is amazing and demonstrates what good aero can do. 

[1212FBGS]

To respond to deans post.... Nicks honda 250 prolly made 42 to 45hp... Cliffs yamaha 350 prolly 55 to 60..... the turbo aps650 prolly 250hp and the naked 750 close to 300..... im thinkin Hertz blown meth 500 NSU was puttin out 60ish in 1956 and allowed him to run over 200........ as much hp as you can make is a good rule of thumb but its really all about CDA
kent

[754]

 George Hall hit 200 last year on a ZX-10 with aftermarket street looking bodywork....I think he has less than 170 hp..

[754]

  Actually Halls bike puts out arond 190 ish with the nitous..

[55chevr]

On a partially streamlined motorcycle it takes basically 200 hp to go 200 mph ... there are some variables of course but that is a good basic guide.

[Seldom Seen Slim]

See reply #1.  I told you so. . . :-P

[55chevr]

Yes you did.

Joe

[av8ford]

To respond to deans post.... Nicks honda 250 prolly made 42 to 45hp... Cliffs yamaha 350 prolly 55 to 60..... the turbo aps650 prolly 250hp and the naked 750 close to 300..... im thinkin Hertz blown meth 500 NSU was puttin out 60ish in 1956 and allowed him to run over 200........ as much hp as you can make is a good rule of thumb but its really all about CDA
kent

Do you know what engines were used for those 250 and 350 streamliner records? The reason I ask is that the horsepower available from late-model production road race motors is considerably higher. For example, a friend's recently retired 10-year-old Yamaha TZ250 produced 96 hp at the rear wheel during its last dyno session. It was tuned for Sears Point (Sonoma Raceway) which is at sea level, but I doubt it would lose any more than 10 percent tuned for Miller Motorsport Park at Tooele, Utah, which is essentially the same altitude as Bonneville.

Mike

[55chevr]

Mike-
The coefficient of drag is going to determine the amount of horse power required.  If you are considering a streamliner, it will require a significantly lower amount of power then a naked open bike.  A feather and a lead ball fall at the same speed in a vacuum.

[Tman]

To respond to deans post.... Nicks honda 250 prolly made 42 to 45hp... Cliffs yamaha 350 prolly 55 to 60..... the turbo aps650 prolly 250hp and the naked 750 close to 300..... im thinkin Hertz blown meth 500 NSU was puttin out 60ish in 1956 and allowed him to run over 200........ as much hp as you can make is a good rule of thumb but its really all about CDA
kent

Do you know what engines were used for those 250 and 350 streamliner records? The reason I ask is that the horsepower available from late-model production road race motors is considerably higher. For example, a friend's recently retired 10-year-old Yamaha TZ250 produced 96 hp at the rear wheel during its last dyno session. It was tuned for Sears Point (Sonoma Raceway) which is at sea level, but I doubt it would lose any more than 10 percent tuned for Miller Motorsport Park at Tooele, Utah, which is essentially the same altitude as Bonneville.

Mike

Hey Mike! Didn't expect to see you post here!

Joe, pretty sure Mike has been around bikes

[55chevr]

Trent-

OK.