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Author Topic: Has anyone been to Bonneville with their cb750?  (Read 3691 times)

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Offline old750

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Has anyone been to Bonneville with their cb750?
« on: September 12, 2007, 09:57:32 AM »
Just wondering if anyone has ever done a 200mph run.
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Offline paulages

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Re: Has anyone been to Bonneville with their cb750?
« Reply #1 on: September 12, 2007, 10:57:35 AM »
200mph?  :o :o

what kind of kit are you running in that engine wanting those speeds, boy?  ;D
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Offline old750

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Re: Has anyone been to Bonneville with their cb750?
« Reply #2 on: September 12, 2007, 12:49:36 PM »
im not interested in going that fast at all. i just thought maybe someone here has probably done it.
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Andoo

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Re: Has anyone been to Bonneville with their cb750?
« Reply #3 on: September 12, 2007, 12:51:47 PM »
impossible on a cb750  :D
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Offline Sam Green Racing

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Re: Has anyone been to Bonneville with their cb750?
« Reply #4 on: September 12, 2007, 01:39:18 PM »
I couldn't find anything on it when I googled it but an Irish guy recorded somewhere close to 190mph in the late 70s early 80s.

Sam.
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Offline mlinder

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Re: Has anyone been to Bonneville with their cb750?
« Reply #5 on: September 12, 2007, 02:28:04 PM »
With gearing and great aero, certainly possible.
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Offline KB02

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Re: Has anyone been to Bonneville with their cb750?
« Reply #6 on: September 12, 2007, 03:17:43 PM »
Quote from: Andoo on September 12, 2007, 12:51:47 PM
impossible on a cb750  :D

I don't know... once Sparty gets that engine into his bike with the nitous on it... with the right gearing... Hmmmmm....  ;D ;)
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Offline Sam Green Racing

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Re: Has anyone been to Bonneville with their cb750?
« Reply #7 on: September 12, 2007, 05:03:03 PM »
 :-X :-X :-X :-X :-X :-X :-X :-X :-X :-X :-X :-X
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Offline paulages

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Re: Has anyone been to Bonneville with their cb750?
« Reply #8 on: September 12, 2007, 05:18:17 PM »
Quote from: SamCR750 on September 12, 2007, 01:39:18 PM
I couldn't find anything on it when I googled it but an Irish guy recorded somewhere close to 190mph in the late 70s early 80s.

Sam.

 :o :o :o
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paul
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Andoo

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Re: Has anyone been to Bonneville with their cb750?
« Reply #9 on: September 12, 2007, 06:25:14 PM »
I just don’t think the 750 engine has enough torque to pull high enough gearing to get 200mph. Esp. in Bonneville were carbonated bikes run 20/30 mph slower than sea level.

Now maybe with a turbo/super, high compression and as a streamliner. But it's not anywere near a cb750 at that point.
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Offline Sam Green Racing

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Re: Has anyone been to Bonneville with their cb750?
« Reply #10 on: September 12, 2007, 06:33:19 PM »
Quote from: mlinder on September 12, 2007, 02:28:04 PM
With gearing and great aero, certainly possible.

Like Mark says, with great aerodynamics a CB750 engined projectile would easily exceed 200mph.

Let me give you an example of low power motors (compared with todays) that have reached unbelievable speeds.

The outright world motorcycle landspeed record in 1956 was 211.400mph with just 500cc of NSU power.
The 350cc record was 189.5mph, the 125cc record was 150mph, the 100cc record was 138mph and last but not least was the 50cc record.
This motorcycle clocked an amazing 121.7 mph with just 12.8bhp, testament to its superb aerodynamics.

Sam. ;)
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Offline Jonesy

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Re: Has anyone been to Bonneville with their cb750?
« Reply #11 on: September 12, 2007, 06:38:34 PM »
I think Sparty will have by next year around this time... ;D ;D ;D ;D ;D
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Offline Sam Green Racing

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Re: Has anyone been to Bonneville with their cb750?
« Reply #12 on: September 12, 2007, 06:48:15 PM »
Hey Dan, did you notice how those NSU people stayed away from the 175cc class ;D ;D ;D ;D ;D ;D

I'm not sure if all their bikes were supercharged but the smaller three definitely were.

The supercharger that they used, when turned inside out became the Wankel rotary motor as perfected today by Mazda. :o :o :o

Sam. ;)
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Offline sparty

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Re: Has anyone been to Bonneville with their cb750?
« Reply #13 on: September 12, 2007, 07:45:20 PM »
Quote from: Jonesy on September 12, 2007, 06:38:34 PM
I think Sparty will have by next year around this time... ;D ;D ;D ;D ;D

Ummm.  I will never have big enough balls to run my bike at Bonnie or anywhere near 200mph even if my bike can do it.
I'll run the bike on the track in the 10s @ 130 to 135mph.

Sparty
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Offline Sam Green Racing

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Re: Has anyone been to Bonneville with their cb750?
« Reply #14 on: September 12, 2007, 07:51:36 PM »
Art, why mess about on an 8th mile drag strip when you can race over the quarter :D :D :D :D :D :D :D :D

Sam ;)
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Offline sparty

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Re: Has anyone been to Bonneville with their cb750?
« Reply #15 on: September 12, 2007, 07:59:54 PM »
Quote from: SamCR750 on September 12, 2007, 07:51:36 PM
Art, why mess about on an 8th mile drag strip when you can race over the quarter :D :D :D :D :D :D :D :D

Sam ;)

You are too kind Sam.  But my bike is too heavy to pull those figures at the 1/8 mile.  I only weigh 160lbs.  My bike is close to stock minus 25lbs.
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GO AWAY SNOW AND COLD!  Can you see the Hot Rod wants to run...
“That's thirty minutes away. I'll be there in ten.”

Offline Irishguy

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Re: Has anyone been to Bonneville with their cb750?
« Reply #16 on: September 12, 2007, 08:01:20 PM »
Quote from: SamCR750 on September 12, 2007, 01:39:18 PM
I couldn't find anything on it when I googled it but an Irish guy recorded somewhere close to 190mph in the late 70s early 80s.

Sam.

No I did not either.   ;)  But I did do "The Ton" on my CB650 last Saturday night on the interstate, just to say I'm a member of the "Ton Up" club.  It got there pretty easy I might add and seemed to have quite a bit left over.

Oh...  Wait a minute...  You're talking about AN Irish guy, not THE Irishguy...   :P

Nevermind...
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Offline Sam Green Racing

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Re: Has anyone been to Bonneville with their cb750?
« Reply #17 on: September 12, 2007, 08:47:27 PM »
 ;D ;D ;D ;D ;D ;D ;D ;D ;D ;D ;D ;D
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Offline Jonesy

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Re: Has anyone been to Bonneville with their cb750?
« Reply #18 on: September 13, 2007, 06:09:49 AM »
Quote from: sparty on September 12, 2007, 07:45:20 PM
Quote from: Jonesy on September 12, 2007, 06:38:34 PM
I think Sparty will have by next year around this time... ;D ;D ;D ;D ;D

Ummm.  I will never have big enough balls to run my bike at Bonnie or anywhere near 200mph even if my bike can do it.
I'll run the bike on the track in the 10s @ 130 to 135mph.

Sparty

Yeah... wait until you've done 135 a bunch of times and it becomes old hat. You'll want more... ;D
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Offline sparty

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Re: Has anyone been to Bonneville with their cb750?
« Reply #19 on: September 13, 2007, 06:51:41 AM »
Quote from: Jonesy on September 13, 2007, 06:09:49 AM
Quote from: sparty on September 12, 2007, 07:45:20 PM
Quote from: Jonesy on September 12, 2007, 06:38:34 PM
I think Sparty will have by next year around this time... ;D ;D ;D ;D ;D

Ummm.  I will never have big enough balls to run my bike at Bonnie or anywhere near 200mph even if my bike can do it.
I'll run the bike on the track in the 10s @ 130 to 135mph.

Sparty

Yeah... wait until you've done 135 a bunch of times and it becomes old hat. You'll want more... ;D

So true... after I ran 100+ a few times I needed more, that is why I have the new engine.
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GO AWAY SNOW AND COLD!  Can you see the Hot Rod wants to run...
“That's thirty minutes away. I'll be there in ten.”

Offline 754

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Re: Has anyone been to Bonneville with their cb750?
« Reply #20 on: October 08, 2007, 10:25:54 AM »
Rode my 73 there this year.. about 950 miles. My buddy rode his 78 750 (had it since new). I cant say I really saw any others there except the Williams Machine 750 A with sidecar.. the guy rides it from his wheelchair and runs the streamliner too!!

I am planning to race there next year in sidecar class and probably solo as well.

Got a good feel for what I need  to bring there. A couple of local guys here ran as well, but on other bikes. One ran 176 on a fairly stock 06 ZX10.. he is trying for the 200 at a dry lake in Nov (will gear it up and use NOS)

It was great fun, & easy to get hooked, my aging engine had a few scary noises but did make the trip, its last road trip (that bike had not done one in about20 plus years) it packed it in a few hrs after I got back :'(...25 years on a built engine...

All part of the Adventure....

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Offline Jim F

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Re: Has anyone been to Bonneville with their cb750?
« Reply #21 on: October 08, 2007, 04:17:07 PM »
Hell just strip down to your shorts and lay flat as a pancake


Just don't crash


all the salt...........................ouch

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