| Author | Message | ||
     Ducbsa |
An EBR went 180 at the Texas Mile last October per thishttp://www.texasmile.net/mileresults.php?page=1&ps =1&event=14 The sponsor has several EBR's for sale http://www.ebrofsouthtx.com/inventory/used | ||
| Buelliedan |
we are hoping to go at least 175 this year with a naked 1190 RX at Bonneville. | ||
| Zac4mac |
Well we went to the CoMi last weekend and I got my first taste of real speed. Our Bonneville partner, Bubba Rocho and I took our EBRs, his Attack Yellow 2014 RX and my 2012 RS. No real prep other than safety wire the required fasteners, Bubba had tips on an OEM primary muffler. I ran one of Dean's race cans and a fat starter map from IDS. Bubba had a best run of 169.8 IIRC. I tapped into the 170s with a 170.0 on Friday, 170.9 Saturday and last run Sunday was 172.4. Met Fireman Jim and his Aussie mates Greg and Kimmy. All awesome folks Greg had the fastest bike at the meet with 236 or 237mph. holy crap. All in all one of the most fun weekends of my life. Zack | ||
| Buelliedan |
at close to sea level(like the TX mile) I am sure Zac could have easily broke 180 mph on his 1190RS. We had a corrected altitude of 8,700 feet on Sunday when he ran 172.4 which probabaly robbed him of around 15-20 hp. | ||
| Blake |
Too cool Zac! Dan, Does the thinner air and resulting reduced aerodynamic drag offset the loss of power at altitude for normally aspirated machines? Well, the wheel spin on the salt is a big challenge too. Advantage Texas.  | ||
| Buelliedan |
Blake, not at all. The lack of oxygen just kills the ability for NA bikes to make enough power to take advantage of the thinner air. From what folks tell me we would see somewhere between 5-10 more mph at sea level type tracks. Now the Turbo bikes often can go faster at higher altitudes as they can just make up for the lack of O2 by giving it more boost. (Message edited by buelliedan on September 10, 2015) | ||
| Firemanjim |
Yup we like that thin afternoon air---dial up the boost!Was good to see all the Buells there! Was surprised at how many of my salt racing friends lived in Colorado! | ||
| Zac4mac |
Ha Ha! This year's reprise - Saw Jim, Greg and Kim and more from Oz(one brought a Vincent powered custom Roadrace bike). Sorry no pics of all this, I was busy running my RS Carbon. Got one good shot of it and my wife -  First two days had bad head/cross winds, I sat out Saturday. Sunday we got tailwinds and after not breaking 170mph with 6 runs Friday, we flew! Lunchtime Sunday brought strong tailwinds so I suited up and got in line. In the next 2 hours, I ran 171.0, 173.3, (2)176.3 and new personal fastest 178.4 Another perfect "race weekend" to look back on. Z | ||
| Crusty |
178.4 MPH on a street bike. That's amazing! Congratulations! | ||
| Crusty |
Oh; I like your boots. I bet they're really comfortable.  | ||
| Firemanjim |
Good fun again--- Greg ran 237.9 for fastest pass of the meet and I got a 196 mph pass on the 600, before breaking it,holed a piston on the next pass running 7 mph faster at the half.  | ||
| Nm5150 |
Does anyone know how accurate the speedo is at those speeds on an 1125.I know what I have seen but don't want to talk out my ass. | ||
| Smoke |
Congrats ZAC!! tim | ||
| Blake |
Nice going Zac and Jim! | ||
| Panshovevo |
This is history now, but I just want to add that my aviation training, both as a pilot and a mechanic, taught me that a normally aspirated piston engine with dual magneto ignition with fixed timing,and a carb or mechanical fuel injection, both of which have the capability of leaning the mixture manually as they climb, but make no other adjustments for altitude, typically make 75% of their sea level power at 8000 feet. At least that's what I remember from way back when I flew factory built certified airplanes. The Homebuilts I flew until I voluntarily quit renewing my medical certificate didn't come with Pilots and Owners Handbooks with performance data charts for various conditions. They didn't have any info for flying upside down though... Tailwinds are awesome when flying with one. It adds directly to your groundspeed! (Helps on the ground too, but not as much. Drag increases astronomically with increased air speed, so if you can reduce your speed through the air with a tailwind, the drag decreases by a factor of 4, IIRC. I suck at math) (Message edited by Panshovevo on August 06, 2017) | ||
| Court |
>>>Good fun again--- Greg ran 237.9 for fastest pass of the meet That's insane . . . . I see you continue to refuse to grow up ! . . . CONGRATULATIONS Well done to both of you . . .damn amazing stuff. |
