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Discussion Starter #21
Guess what! I just discovered that my bike is equipped with the rare "miles per half-hour" speedometer option. So I'm actually going 190mph. So I guess I'm way faster than ALL you clowns. I knew those Mikunis were a good idea. *cue evil laughter*

But seriously, I haven't actually gone 130 on my H1. I haven't gone any speed for that matter, since I had to take it apart into a hundred pieces to get it home, and haven't got it back together yet. It's a long story, and a 6000 mile, original paint, super nice H1. I was just going off the top speed reported in the factory specs. I was also quoting the factory HP figures for the CB350. On the same note, it seems that the H1 should be able to reach a lot higher speed than 105-110. Let's say my CB350 really does make an honest 36hp. I've verified that indicated speed on my CB350 is accurate, and it can hit 95 with its 36hp. A H1 and a CB350 are probably aerodynamically similiar (not very aero). The H1 has 24hp up on the 350, almost double the horsepower. I know that wind resistance increases as the square of vehicle speed or something like that, but with all its extra power, I would think it could muster more than a 10mph advantage over the CB.

As far as the clean undies go.... I LAUGH AT DANGER! HA HA HA!
 

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Discussion Starter #24
I hope that is overly optimistic. I know factory specs often are. If it's true, than my bike is slower than stock in spite of all the time I've invested in hopping it up. That would be a bummer.
 

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Once you get to a certain aero dynamic point it takes 10 hp or more to go one mph faster.

To give you an idea of how much aero plays into it, in the early 1990s cycle world did a test of hopped up sport bikes that could potentially do 200 mph. Of the ones that could actually see 200 (barely), most promptly eurpted the rear tire into a rolling burnout rather than refusing to go faster, the aerodynamics simply overcame the traction. Now look at today's sport bikes which are capible of 200 mph with very little mods - it only took significant aero mods and almost twice the hp.

Now imagine the same thing with your h1 vs cb. Really after 110 on a naked bike it doesn't matter how much hp you have you really are not getting much faster, and you are really not going to see past 105 unless you are significantly over that 50 hp mark.
 

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sid,

call nancy, she'll tell the truth. just so you know, rosko is the only one on this thread that doesn't have his tongue in his cheek. a stock CB350 (any many of us here race them) will make about 28hp max, so your 36 is a mistake...i promise. and that kind of hp will get you close to 100mph....maybe.

IMSLOW and craig have very nicely built CB350 engines (everything modified) and are likely in the low 40s hp range and could easily crack 100mph...but it's cornerspeed that matters anyway.

it sounds like your bike is right where it should be. it's mostly thought that carb and header/exhaust mods don't change Hp very much at all as the valves are the primary limiting factor to Hp gains. so if you want to go faster in a straight line, which is kinda boring anyway, you'll have to build the engine.

oh, and you should ask craig for pics of his bike....it's awesome.

-tt
 

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craigs bike is pretty. and i think it actually still has the same body work it started the season with! congrats craig! theres a thread here somewhere. i think it was in the 136mph guys thread, with the 65 hp bike. chris got 48hp, under 115mph, under the bubble on the banking at daytona. with the ahrma gun. tached out, with gearing, and a tailwind. (om soo tired of repeating that)

why does anyone really care how fast they go anyway??

mines the slowest one out there. i just ride it fast.
 

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FYI- everything else being equal, power required rises with the cube of velocity, which means it takes 8 times as much power to go twice as fast.

So, if'n your stock bike goes 100 mph on 28 hp, 140mph would take roughly 28 * (140/100)^3 = 2.74 * 28 = 76.8 hp

For reference, my 900ss puts out about that much power, and goes about that fast...
 

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That would be IF you kept the bike the same. Anyone dumping that kind of time and money into a motor aint putting it in that heap o shite. I know craigs bike is close to 100 lbs. lighter than stock. Others have gone even further.

so if you can get mid 90's from a 380 lb. bike with 28 hp what can you get from a 46 hp bike weighing 280?
 

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Weight really only becomes a factor if acceleration is thrown into the formula. For absolute top speed weight is not all that relative. Losing 100lbs off a bike will do wonders if its being road raced but losing 100lbs, if the drag is the same, won't affect top speed. A guy in our club runs a 200mph+ street roadster at Bonneville. He has 400lbs. of ballast bolted in the trunk mainly for traction. As they say at Bonneville "weight is your friend".
 

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I have no idea how fast my bike goes. Evil posted a number and being a racer I had to post a bigger number. Then Hack posted a bigger number. Then tt came in with a low 128 but lied about how much hp his bike puts out. Then Joe came in and once again had to brag about his 9 time daytona winning friend.

Once you start asking things like how much hp, or how fast a bike goes be ready to get a lot of answers. Some may even be true.

On the post pictures of your bike thread, page 3, Champ posted a picture of my bike on April 18th. Yellow and red Honda.

Craig
 

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9 times.....he'll love that!!!


hes your friend too craig. dont be mad at him cuz he gave you such a hard tme on a shitbox clapped out stocker at mosport. he lives for doing that kind of shit!

since its the highest number ive heard, and i take his word on that, its all i can say. and he won daytona that year. cant see there have been leap and bound changes since. i know mine will go pretty fast. but i have no idea what its top speed actually is. i know its faster in a draft though!

craigs bike is very nice.
 

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jc,

I'm not mad at anybody. I was just busting on you. Not Chris, who kicked my ass on his clapped out stocker. And not Tex, who also kicked my ass on his speedy blue bike. If I could loose about 75lbs I could keep up with those guys.

Craig
 

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craig,

there are places that you will always make me look silly (like i'm chained to a post). loudon is one of them. i think if mosport's back straight was flat and not uphill, it would have been an entirely different race. i love and loathe seeing the ketchup and mustard fairing pass me or show a wheel in a corner. we'll have some great battles next year. get working on the trans....no excuses come march at VIR.

t1 bitches, t1!

cheers,

texy
 

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tex,

I'm already planning on VIR next season. I didn't enjoy sitting home when the rest of you were down there having fun last year.

Craig
 
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