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Luisemilio25r
| Posted on Tuesday, March 29, 2011 - 12:26 am: |
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How much do you guys would say a difference of 20hp increase on a bike compare to a car? Say an equivalent to our bikes, like a corvette. |
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Froggy
| Posted on Tuesday, March 29, 2011 - 12:39 am: |
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20hp increase is about 15% depending on what you use as your base number. |
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Albert666
| Posted on Tuesday, March 29, 2011 - 01:00 pm: |
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just work out the power to weight with and without the increase, thats should give you some idea surely |
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D_adams
| Posted on Tuesday, March 29, 2011 - 02:19 pm: |
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The 1125 wet weight without fuel is supposed to be about 421 lbs and is 146 hp at the crank or roughly 122 at the wheel. A 2011 z06 vette, 3180 lbs and the claimed hp is 505, I assume at the crank also. At 421 lbs, stock is 146 hp or 2.88 lbs/hp. Drivetrain loss is roughly 16.5% or 122 hp at the wheel. Add 14% or 20 hp, the weight to power ratio drops to 2.5 lbs/hp. You would be close to 170 crank hp. The vette at 3180 lbs has 505 hp or 6.297 lbs /hp. Add 14% here = 575 hp or 5.3 lbs/hp. To get the same power to weight ratio on a vette, you would need 1267 hp, or close to that. My math is probably wrong, someone correct me if it is. |
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Drhodes1970
| Posted on Tuesday, March 29, 2011 - 02:33 pm: |
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Looks about right to me. One thing is for sure 1125 plus Keda RT-3 plus Erik Buell Racing ecm equals FAST. WOW !!! |
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D_adams
| Posted on Tuesday, March 29, 2011 - 02:47 pm: |
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I think a Ducati 1098 and 1098S are rated at about 160 hp at the crank and the driveline loss might be a little more than the 1125's losses. Pretty nifty that a little ol Buell can more than match that with just a pipe and tune. The 1098R is rated at 177 hp at the crank. Scary to think that YOUR bike could get pretty close to an "exotic italian" sportbike in terms of hp. Nah, couldn't happen. |
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Jdugger
| Posted on Tuesday, March 29, 2011 - 04:05 pm: |
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I'd love to think the $6,000 1125r with a pipe and tune could out-run an 1198. ... unfortunately, it just doesn't happen.
In all fairness, the rider on the Ducati in this picture is Brad Feltes, and he's incredibly fast and knows the track well. The guy on the Buell is from out of town and it's probably his first time at MSR. Still... both those guys are at WOT in a straight just after a fast corner. |
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Avalaugh
| Posted on Tuesday, March 29, 2011 - 04:37 pm: |
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I Have a friendly race coming up on Sunday with a Honda integra type R, 380bhp turbo'd and Lamborghini Murcielago LP 580 tuned to 680bhp Going to be on camera, place your bets guys and girls (Message edited by avalaugh on March 29, 2011) |
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Albert666
| Posted on Tuesday, March 29, 2011 - 04:41 pm: |
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be good to see the results. good luck paul![](http://www.badweatherbikers.com/buell/clipart/thumbsup3.gif) |
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D_adams
| Posted on Tuesday, March 29, 2011 - 04:45 pm: |
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Jim, I said a 1098, not the 1198, although that would be damn cool too. |
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Anonymous
| Posted on Tuesday, March 29, 2011 - 04:54 pm: |
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Depends on the rider and state of tune of the 1198, guys. Stock 1198 with Termi and chip is about 5HP up on an 1125 with Erik Buell Racing pipe and ECM on our dyno. Also the Ducati is light in front weight distribution, ref. the pic above... They have strengths, but that is a weakness. |
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Anonymous
| Posted on Tuesday, March 29, 2011 - 04:56 pm: |
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Oh, one other thing, on the power to weight compared to cars...don't forget to add the rider and driver. Big hit for us. So skip the bacon double cheeseburger. |
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Avalaugh
| Posted on Tuesday, March 29, 2011 - 05:06 pm: |
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Thanks Alan, will all be on video so hopefully I'll get it up on YouTube, doubt you'll hear the lambo over your pipe though It all depends if my injectors arrive in time, they should be here any day now. |
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Kinder
| Posted on Tuesday, March 29, 2011 - 09:37 pm: |
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My money is on the honda!! I don't think the lambo owner will push his car for fear of a wreck and if he does it will be a wreck. Lots of factors with car to bike comparo's. Launch, cornering ability, traction patch, power curve and rpm acceleration to name a few. There are cars out there that while we eat them off the line they do have scary roll on power once in the 3 digit range. |
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Avalaugh
| Posted on Wednesday, March 30, 2011 - 02:03 am: |
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It's only a bit of fun, unfortunately it will be on a series of link roads, with a few roundabouts in-between. The guy with the lambo is a famous Moto-x stunt rider, I'll find out his name, I'm sure he won't hold back though. |
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Albert666
| Posted on Wednesday, March 30, 2011 - 01:25 pm: |
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here you go paul i'm expecting a win from you now
![](http://i874.photobucket.com/albums/ab305/deathshop/evo.jpg) |
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Duphuckincati
| Posted on Wednesday, March 30, 2011 - 02:26 pm: |
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Someone throw in a calculation of hp/weight/cost/fun and whatever the numbers cars are still boring compared to the orgasmic pleasure of motorcycles. And in my mind the last Lambo with any real class was the Miura. |
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Avalaugh
| Posted on Wednesday, March 30, 2011 - 03:46 pm: |
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Haha @ Albert666 Unless this rain disappears I won't be going anywhere ![: (](http://www.badweatherbikers.com/buell/clipart/sad.gif) |
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Torquaholic
| Posted on Wednesday, March 30, 2011 - 05:44 pm: |
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Jim, In the pic you posted above, does the 1125R rider have a stock exhaust on his bike? Thanks. -Kevin |
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09_1125r
| Posted on Thursday, March 31, 2011 - 02:51 am: |
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The 1125r has a bigger rear sprocket. He should be Wheeling more than the Duc at WOT. |
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Jdugger
| Posted on Thursday, March 31, 2011 - 04:25 pm: |
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> In the pic you posted above, does the 1125R rider have a stock exhaust on his bike? It kind of looks that way, but I don't know for sure. > The 1125r has a bigger rear sprocket. He should be Wheeling more than the Duc at WOT. You don't have enough data to come to that conclusion reliably. |
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Kinder
| Posted on Thursday, March 31, 2011 - 07:49 pm: |
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Looks like the R has a chain conversion. Who knows what ratio he was running. I find it hard to believe one would get a chain conversion and run stock exhaust on the track. |
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Froggy
| Posted on Thursday, March 31, 2011 - 08:11 pm: |
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Right, because nobody would run a stock exhaust on a race bike, like there are no such things as noise restrictions http://pegasusraceteam.com/html/buell_1125r_new_0. html |
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Kinder
| Posted on Friday, April 01, 2011 - 01:27 am: |
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http://pegasusraceteam.com/html/buell_1125r_new_16 .html Like I said.... Chain conversion with stk exhaust. That peg bike is still belt. :P It's a cost thing to me. If you can afford a chain conversion the you prob already did an exhaust. |
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Froggy
| Posted on Friday, April 01, 2011 - 01:40 am: |
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I didn't know the chain conversion will quiet the exhaust to make it pass noise restrictions on some tracks |
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Avalaugh
| Posted on Friday, April 01, 2011 - 03:42 am: |
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now now you two, play nice. I'm with froggy |
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Jdugger
| Posted on Friday, April 01, 2011 - 09:34 am: |
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I see chain and exhaust as completely distinct purchases without an obvious priority. One allows you to change the gearing and helps shed some unsprung weight off the rear wheel. Depending on your track and skill level, this might be a critical necessity. The other helps you reduce the weight of the bike and perhaps get a little more power at the expense of absolutely obnoxious noise levels and the risk of a black flag at some tracks. |
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Torquaholic
| Posted on Friday, April 01, 2011 - 11:03 am: |
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I only brought up the stock exhaust question because of Dugger's quote about, "pipe and tune could out-run an 1198". It appears that the bike has the stock exhaust and if so, may not even be tuned. That goes to the question of if it had a pipe and a tune, would the picture tell a different story? It is a little out of the ordinary to find a chain conversion with a factory-tune, stock-exhaust bike, but maybe that's the preferred class rules for that racer- no power mods? Or maybe that's just the racer's budget? Either way, too much info can't be gathered from the one picture. Bottom line is it makes me want to get out and ride on a track again. Clinical rotations on weekends is eating up all my time. ![](http://www.badweatherbikers.com/buell/clipart/twitch.gif) |
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Dennis_c
| Posted on Friday, April 01, 2011 - 01:26 pm: |
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I know what is happing the Duck is about to go a lap down. |
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Jdugger
| Posted on Friday, April 01, 2011 - 04:57 pm: |
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Feltes is a fast rider, and that's really the story here. Felts probably would have smoked that 1125r if he were on an sv650. He *schooled* me last year. I mean, I wasn't even close. Like 5-6 seconds a lap down. He got promoted to expert this year, and he's in that mess now. The CMRA is almost unbelievably competitive. I've met more than a couple of experts from other race clubs that wouldn't even be upper-half novices here. This particular picture was a national series that decided to visit Texas this year. A bunch of CMRA guys went racing that weekend, and took a lot of the trophies home. I don't care what you are riding... don't show up in Texas thinking you are taking home the prize. |