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captainasty's Avatar
 
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Cool

The R12C runs at the speed of smell.

Old 11-08-2006, 08:07 AM
  Pelican Parts Catalog | Tech Articles | Promos & Specials    Reply With Quote #101 (permalink)
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Quote:
So, has that Rebel been jetted and piped?
-I put in a Power Commander XIVVIII. It makes the bike run like total crap, but gives me something to put in my signature line.

-Also carbon fiber toilet seat and hugger, to make the bike look even worse than it did stock.

-Wheels are made of platinum. Costs more than my house, and they dont even fit, but if it costs a lot, it must be worth it!

-Brake wave rotors where the waves look like someone's middle finger. Does absolutem,y nothing for stopping power and the rotors' diameter exceed the tire diameter.

-brake pads made of decomposed cow manure.

-new 300 rear tire. So wide it doesnt need side stand now. It must make the bike corner better because bigger is better!! In process of gluing 2 together for a 600 tire. The bigger it gets, the faster the bike!! Right?

-Samsonite bags duct taped on. because every bike on the planet should have bags. I'm starting a movement to mandate hard bags on the new GP racing bikes. Chris will be the first signature.

-Tuba sized intake duct. Because even though a stirring straw would be more than enough, I get to spend money on something that I can brag about at the weekly Rebel meeting, also known as AA.

-Pistons and cylinders from a VTX.

All this results in a fast bike. Because we all know that amateurs tinkering in their garage can outsmart German or Japanese corporate engineers any day of the week and get more HP that they ever could.
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Old 11-08-2006, 08:09 AM
  Pelican Parts Catalog | Tech Articles | Promos & Specials    Reply With Quote #102 (permalink)
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Damn thats fast. I'll take two just incase I wreck one.
Old 11-08-2006, 08:46 AM
  Pelican Parts Catalog | Tech Articles | Promos & Specials    Reply With Quote #103 (permalink)
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Damn turnerm! Now that is funny........thanks in advance for anything coming our way that original.

Also don't forget........some to the busa people have handcuffs attached to the handlebar ends so they can hold on during acceleration runs........even if their fingers let go.

Last edited by Dr. Curve; 11-08-2006 at 09:20 AM..
Old 11-08-2006, 09:17 AM
  Pelican Parts Catalog | Tech Articles | Promos & Specials    Reply With Quote #104 (permalink)
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Quote:
Originally posted by turnerm
Man, the R1100S goes over 150?

Wow. By the end of this thread, someone will claim that the R1200C cruiser breaks the sound barrier.
I never broke the sound barrier on an R12C, but I DID get radar'd by the NJ state police going 126 in a 55 on my old R12C with open pipes. Would backfire huge flames when I got off the throttle. Came around a bend on Rt. 80 at full stop, saw the cops helping a motorist on the side of the road and got off the throttle and BOOM - bike flames out the pipes. Took them a good 20 min to finally catch me. Bike got impounded, bad scene. Cops were pissed, etc. . . Plead it down to a $500 no fine, no points. Gotta love NJ.

Bike ran like crap, but when I put the straight pipes on it I did get more top end. Keep in mind, I was going slightly down hill in chilly late November.

I've got a problem not winding my bikes out at full throttle every time I'm on the HWY which is one the major reasons I drive an 1100GS now - NO Top End keeps me away from Johnny Law.
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Last edited by 718Rider; 11-08-2006 at 09:49 AM..
Old 11-08-2006, 09:46 AM
  Pelican Parts Catalog | Tech Articles | Promos & Specials    Reply With Quote #105 (permalink)
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Quote:
...I put the straight pipes on ....
I bet you saved a lot of lives with those babies!!
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Old 11-08-2006, 09:50 AM
  Pelican Parts Catalog | Tech Articles | Promos & Specials    Reply With Quote #106 (permalink)
 
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I was young and stupid. That bike was so loud harley guys would tell me it was too loud. I live in Brookyn and when I would start it all the little children on my block would start crying (all the little girls anyway). It was pretty dumb to tell you the truth, but it 'seemed like a good idea at the time'.
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Old 11-08-2006, 09:57 AM
  Pelican Parts Catalog | Tech Articles | Promos & Specials    Reply With Quote #107 (permalink)
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Any problem with bike theft? or do you have a garage.
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Old 11-08-2006, 10:07 AM
  Pelican Parts Catalog | Tech Articles | Promos & Specials    Reply With Quote #108 (permalink)
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I leave the GS on the street. No problems. When I had the S it lived in a garage until I got married and then it went on the street for 4 months until I sold it. Again, no problems. My opinion is that the bike thieves aren't interested in Beemers. Most of the bikes that get stolen are rice burners. A buddy left his beat to crap GSXR 750 (that had been spray painted flat back and dropped a zillion times) on the street and it got stolen 4 weeks ago. Go figure. The urban crowd likes the street bikes and stealing bikes is a great way to replace a blown motor. Again, I don't think there is much of a market for Beemers with them.
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Old 11-08-2006, 10:12 AM
  Pelican Parts Catalog | Tech Articles | Promos & Specials    Reply With Quote #109 (permalink)
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Quote:
Originally posted by 718Rider
I leave the GS on the street. No problems. When I had the S it lived in a garage until I got married and then it went on the street for 4 months until I sold it. Again, no problems. My opinion is that the bike thieves aren't interested in Beemers. Most of the bikes that get stolen are rice burners. A buddy left his beat to crap GSXR 750 (that had been spray painted flat back and dropped a zillion times) on the street and it got stolen 4 weeks ago. Go figure. The urban crowd likes the street bikes and stealing bikes is a great way to replace a blown motor. Again, I don't think there is much of a market for Beemers with them.
Yeah that's another good thing about most beemers, nobody wants to steal one. I worry more about someone knocking it over by accidently backing into it. I would have a problem with my bike living outside, I keep mine in the garage plugged into a battery tender when I'm not riding.
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Old 11-08-2006, 11:43 AM
  Pelican Parts Catalog | Tech Articles | Promos & Specials    Reply With Quote #110 (permalink)
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Quote:
Originally posted by ckcarr
You have to post a picture of the GPS reading then for us to believe you.
No problem. I'm sure I can borrow my buddy's ZX-14 for a 160 mph run. )
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Old 11-08-2006, 11:56 AM
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The following was originally posted here in another thread two weeks ago that I can't link to because I don't want to take the time to figure out how to do it.

MPH= (rpm x tire diameter) / (gear ratio x 336)

It gets a little more complicated because the R1200S has a step-up at the primary of 1:1.824 that needs to be accounted for. I think I am doing this right, but I'm sure one of the engineers will correct me if I'm wrong.

RPM is 8200
Tire Diameter is 26" (Pirelli 190/55zr17 slick)
Final Drive = 2.62
6th gear = .81:1

MPH = [(8200/1.824)*26] / (2.62*.81*336)

MPH = 116885.96 / 713.0592

MPH = 163.92

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Old 11-10-2006, 12:41 PM
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Well, having two sigfigs in rpm and tire diameter (and neither quite accurate to begin with, odds are) and ending up with a "precision" number like 163.92 is off base to begin with. At the very least, to get close to tire diameter, the good Dr.s method, as previously described, is a must.
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Old 11-10-2006, 01:02 PM
  Pelican Parts Catalog | Tech Articles | Promos & Specials    Reply With Quote #113 (permalink)
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Agreed on signifcant figures..plus, that speed calculation is probably based on a frictionless model...what about rolling reistance and aero drag? Another question, just for giggles, what is diameter of 180 tire on 5.5" rim?
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Old 11-10-2006, 01:11 PM
  Pelican Parts Catalog | Tech Articles | Promos & Specials    Reply With Quote #114 (permalink)
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We will be running a 190/55, as contrasted to the stock 190/50, at the ECTA meet. This will give a rolling distance of 6 feet 6 inches for one revolution of the rear tire. 160 plus is going to be absolutly no problem.

BMWIVAN, like Roger said, take as many variables out as possible. Actually ROLL the bike forward after making a wet mark in the center of the rear tire. Roll far enough that two marks are made while the bike is being rolled while standing straight up. Measure the distance between the two marks. Use this figure for knowing how many RWR it takes to go one mile. 163 at 8200 on a R12S running a 190/55 is very close however, its just that to get it exact.........measure the actual rolling distance.
Old 11-10-2006, 02:30 PM
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Does the circumference of the tire increase at 160mph +/-?
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Old 11-10-2006, 02:48 PM
  Pelican Parts Catalog | Tech Articles | Promos & Specials    Reply With Quote #116 (permalink)
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Quote:
Originally posted by Steve Carlton
Does the circumference of the tire increase at 160mph +/-?
You bet, which of course, makes the bike go even faster, perhaps 165+ (at least!!!!). Remember, it's all gearing, not power or drag, and top speed can be computed from gearing, with a little "she was pulling like a frieght train at 145 indicated" confirmation.

This has to be one of the most ridiculous technical discussions yet on this forum.

- Mark
Old 11-10-2006, 02:57 PM
  Pelican Parts Catalog | Tech Articles | Promos & Specials    Reply With Quote #117 (permalink)
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Quote:
Originally posted by markjenn
This has to be one of the most ridiculous technical discussions yet on this forum.

- Mark
Nonsense.

It was the one about the rubber band on the grip...
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Old 11-10-2006, 03:18 PM
  Pelican Parts Catalog | Tech Articles | Promos & Specials    Reply With Quote #118 (permalink)
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Sorry you guys feel that way. If you owned one of these new machines it would be more easy to understand what all the excitement is about. In time good things come to those who wait...........
Old 11-10-2006, 03:33 PM
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Quote:
Originally posted by Dr. Curve
Sorry you guys feel that way. If you owned one of these new machines it would be more easy to understand what all the excitement is about. In time good things come to those who wait...........
Jim, thank you for your thoughts, but somehow, someway us non-belivers with make it through the night thinking that our beloved BMW's can only do 150 rather than 160. It will be tough as hell, but we'll manage. Maybe some day we'll see the light and start believing in miracles. We're just not ready yet.

- Mark

Old 11-10-2006, 04:50 PM
  Pelican Parts Catalog | Tech Articles | Promos & Specials    Reply With Quote #120 (permalink)
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