| Author |
Message |
    
Bomber
| | Posted on Wednesday, July 16, 2003 - 04:55 pm: | 
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Rolls Royce used to list horsepower on their spec sheets as "Sufficient" :-}
me, I try to buy motorcycles, not spec sheets . . . they are a lot more fun |
Smadd
| | Posted on Wednesday, July 16, 2003 - 06:12 pm: |
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"Sufficient"!! That's even better!!! I like that!! Wow!! What would people do for "bragging rights"????  |
Jim_witt
| | Posted on Wednesday, July 16, 2003 - 08:00 pm: |
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If you all practiced what you preached (about not needing HP for the street) then you would own one of these pups.
-JW:> |
Smadd
| | Posted on Wednesday, July 16, 2003 - 11:37 pm: |
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Hey.. I love scooters! Is that an Aprilia? The Kymco "People 50" is a nice one too... and considerably cheaper. If I didn't have to ride some highway to get to work, I'd get one. I don't care for the big ones... like the Helix, that much. A long time ago, I had a Vespa. Before that, a Velo Solex... then a Peugeot moped. I think scooters are great and some day I'll own another!  |
Jim_witt
| | Posted on Wednesday, July 16, 2003 - 11:52 pm: |
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Yep, an automatic 50cc EFI Scarabeo. I too had a Vespa about 40 years ago (smile). Had one of those 2-stroke 3 cylinder Mach (?) Kawasaki in 72 too. Supposed to be the fastest production bike at that point in time (low 11 sec. in the ¼”). Just think, that was over 30 years ago ... an 11 second bike!
-JW:> |
Smadd
| | Posted on Thursday, July 17, 2003 - 06:41 am: |
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"Fastest production bike" *and* famous for the handling, right? "> Unfortunately.. I don't speak from experience having never ridden one. I sure wanted one though! White with blue stripes. 40 years ago... dates you... that's when I was just giving up the Velo Solex! Honda S90, Bultaco Metralla, Suzuki GT250 and 550, Suzuki GS750 (starting to get civilized now!), RD350... the list goes on. Wish I still had every one of 'em! Didn't know Jack back then... but they sure were fun times! I might have trouble finding any of those old bikes now (particularly the Metralla).... but a new scooter would bring back some neat feelings. ">
edited by smadd on July 17, 2003 |
Loki
| | Posted on Thursday, July 17, 2003 - 09:59 am: |
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A lightly massaged RD350 can be a real hoot to ride. I had a 75(RD350) that had the 76 RD400 Daytona rolling stock and brakes on it. I had (J)Konsinski's old man bore and massage the chambers and ports some. There is another story and a half, he specialized in stuffing the big 'zuk 1100 motors into the little 750 frames. Pure evil when he was finished with them. That was some 14 years ago though. I still like my S1 though and loving the look of the black on black XB12R. |
Smadd
| | Posted on Thursday, July 17, 2003 - 10:13 am: |
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Yeah... the RD350 *was* a real hoot!! I built a "cafe racer" RD that I loved to ride in the country... in search of the big multis! 'Course... that was a *long* time ago! |
Turnagain
| | Posted on Thursday, July 17, 2003 - 10:37 am: |
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man, I wish I still had my RD350. Unfortunately I was taken off of it by land yacht back in '76.
Steve(2)
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Jmartz
| | Posted on Thursday, July 17, 2003 - 10:47 am: |
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Mzoo:
I am well aware of the valve train limitations. I was not thinking so much in higher rpms but getting there quicker. Larger bore (ca. 4in.) can compensate in part for the loss of torque inherent in a lesser stroke.
TQ: You are correct about the veracity of the HP. I have no independent confirmation of the actual #. Not sure I believe you can outrun an R1 up to 120. My bike made near 100 HP when I 1st assembled it (now after 20,000 miles it has around 90 some). The many times I have raced against my buddy's 916, the moment he shifted into 2nd he passed me. The speed was under 90.
This time-to-power issued dawned on me while visiting Daytona one time. I hooked up with some people for a ride that took us across the peninsula. Along came a beautiful S2 with a Turbocharger. The owner proudly displayed his dyno chart showing 120 HP. We accelerated together several times and I could always outrun him. |
Smitty
| | Posted on Thursday, July 17, 2003 - 10:57 am: |
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Ahhh I love the smell of a stroker in the morning.All of this talk makes me miss my RZ350. |
Aaron
| | Posted on Thursday, July 17, 2003 - 11:01 am: |
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A Dynojet dynamometer measures horsepower literally by measuring how long it takes to spin up a drum. So-called "time to power" will show up as more power on this type of dyno.
My guess is you're seeing discrepancies between horsepower and acceleration due to gearing. Gearing has a huge effect on acceleration and will not show up on a dyno. |
Torqd
| | Posted on Thursday, July 17, 2003 - 11:16 am: |
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well I guess that my friends R1 is just holding back on me...and if you are ever in the neighborhood maybe you could come accelerate with me and show me how slow my 130 hp buell is:-) |
Jmartz
| | Posted on Thursday, July 17, 2003 - 12:03 pm: |
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I know gearing is the reason my friend's 916 is weak off the line. 1st is way too high for street use. In fact I've read in magazines comments to that effect. "too high 1-3. too low 4-6". I should someday learn about the dyno physics you mention. In the case of the S2 I think the low compression and turbo lag had something to do with it, as well as the 29 front pulley known to be fitted to those.
I frequently ride an S4 that while somewhat heavy and clumsy (compared to my S1) never ceases to impress me on how fast that motor spins up when you whack it. |
Jmartz
| | Posted on Thursday, July 17, 2003 - 12:05 pm: |
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TQ:
You are on! I'll divert through IL on my next trip to my former home, Milwaukee. |
Aaron
| | Posted on Thursday, July 17, 2003 - 12:21 pm: |
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Not much to know actually ... it's just a big heavy drum riding on some pillow block bearings. There's a little optical sensor, not unlike the timing plate sensor in your nose cone, and a tab coming off the axle that passes through the sensor once per revolution. So the dyno electronics is just sensing each revolution and knowing the drum mass, it can calculate horsepower from the acceleration rate and rpm. |
Aaron
| | Posted on Thursday, July 17, 2003 - 12:23 pm: |
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By the way, here's Torqd's dyno sheet ...
I wouldn't race him!
Well, maybe with my 100" |
Jmartz
| | Posted on Thursday, July 17, 2003 - 12:44 pm: |
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You are assuming I would be using my tired Buell. That is not what I had in mind to bring. remember the argument was its performance against an inline 4. |
Apex1
| | Posted on Thursday, July 17, 2003 - 12:49 pm: |
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WOW! That bike has 100lbs of torque or more from 3,800-6500RPM! Very impressive. I've not seen too many charts like that one. |
Smadd
| | Posted on Thursday, July 17, 2003 - 01:10 pm: |
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Wow! This is just like the "Cecil vs Blake" events that never materialize! Bet that Scarebeo pictured above would take the both of ya!!
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Piggos
| | Posted on Thursday, July 17, 2003 - 01:33 pm: |
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50 hp and 80 ft. lbs. at 3250!!! Man, I love these motors!!! |
Pammy
| | Posted on Thursday, July 17, 2003 - 05:09 pm: |
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I might have a little 88" I'd enter in that race... |
Torqd
| | Posted on Thursday, July 17, 2003 - 05:35 pm: |
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ok...the more the marrier...but when did this turn into a race of the big dogs(and I am not "factory sponsored" or "shop owners" like you two... hehe)...I just wanted to see that 100 Buell put me in my place:-)
lots of love in this place though... |
Vr1203
| | Posted on Friday, July 18, 2003 - 01:52 am: |
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Jmartz, Iowa is just west of Ill., ride on over and I'll show you how a turbo bike should run.
not right away though,... havn't got it finished .
 |
Jmartz
| | Posted on Friday, July 18, 2003 - 11:39 am: |
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Let me know when you are ready VR. Perhaps we'll all have a chance to meet in Milwaukee. |
Grndskpr
| | Posted on Friday, July 18, 2003 - 12:55 pm: |
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VR, where in IL, i would be interested in taking a look, but i am in chicago, might give me some idea
later
Roger |
Bads1
| | Posted on Friday, July 18, 2003 - 01:20 pm: |
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Torqd wondering if you are coming to the 20th anniversary next month??????Got to see that beast!!!! |
Vr1203
| | Posted on Friday, July 18, 2003 - 02:00 pm: |
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Roger, It's Iowa. Eastern Iowa about 2.5 hours from Chicago. |
