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K1600 B and GA Speed limiter Removed !!!

72493 Views 169 Replies 64 Participants Last post by  pkenahan
Anyone in the Massachusetts area wanting to have their bagger and/or Grand America speed limiter removed and HP tuned?
Please Message me !
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Is how to a secret?

Duane
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No secret if you have the knowledge, multiple pieces of expensive equipment and a bike. All you need to do is put bike on dyno, remap ECU and click multiple buttons on a keyboard ?. JK
Seriously tho, it’s mostly remapping the Ecu.
Do you live in the area?
@Hothead, No, I'm in northern Virginia. I don't own a B, I'm just curious as to how/who can remap the bike.

Duane
I ride a GTL and 140 mph is plenty fast, for me, so I don't have a dog in this fight but doesn't this void the warranty?
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I knew it was only a matter or time and actually surprised that it's just now being done.

Now to make the top box removable. LOL
Until some idiot has a high speed death wobble crash and comes back to sue you
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I knew it was only a matter or time and actually surprised that it's just now being done.

Now to make the top box removable. LOL
I can remove your top box in about 3 minutes. However, I can't promise it will go back on.
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I had a great conversation with one of the technicians at Bob's BMW last week about the speed limiter on the B. He said they have done some playing around with the bikes and have seen/witnessed some pretty significant issues with wobble or vibration/instability at high speeds. They were talking about the stance difference between the GT/GTL and the B and said they think the instability could be caused by the bagger stance and how the rear is lower on those bikes. that, coupled with the floor boards and different contour of the bags is what they think causes the issue.
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I ride a GTL and 140 mph is plenty fast, for me, so I don't have a dog in this fight but doesn't this void the warranty?
The short answer is yes. The long answer has to do with the Magnesson Moss Act.
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The short answer is yes. The long answer has to do with the Magnesson Moss Act.
I wouldn't think it would apply to this procedure as it's not maintenance but, rather, an alteration -- and a relatively significant one, at that.
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I test rode the Grand America two weeks ago (for two days) and I test rode the B, last week. I run the GA up to the limiter several times for a distance of 1/2 mile to a mile and I run the B up to 130 mph for two or three miles and I did not notice any wind buffeting (except for my chest/head when I put the wind screen all the way down) and I did not notice and instability or excessive buffeting in either of these two bikes. Is this problem/issue only in some and not others?
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I had a great conversation with one of the technicians at Bob's BMW last week about the speed limiter on the B. He said they have done some playing around with the bikes and have seen/witnessed some pretty significant issues with wobble or vibration/instability at high speeds. They were talking about the stance difference between the GT/GTL and the B and said they think the instability could be caused by the bagger stance and how the rear is lower on those bikes. that, coupled with the floor boards and different contour of the bags is what they think causes the issue.
They told me same thing although I have never felt anything bad at high speed (125) on mine. Then they also told me that someone could do what Hothead is doing. It will void warranty and they recommended if I was going to do it the front end needed to be set up tighter with different equipment. Very interesting conversation with them good guy there.
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No secret if you have the knowledge, multiple pieces of expensive equipment and a bike. All you need to do is put bike on dyno, remap ECU and click multiple buttons on a keyboard ?. JK
Seriously tho, it’s mostly remapping the Ecu.
Won't this ECU remapping be reversed when you have the first dealer service and they update the bike's firmware?
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A few very respectable companies have been remapping BMW ECUs for several years now - mostly the sport bikes: S1000RR, K1300S. Over the last few months I've been hearing about a tune for the K1600 but haven't seen anyone report credible information about it. I'm not at all a fan of what they are doing unless you're racing the bike and know what you're getting is what you want. And, I've seen more than one S1000RR go in the wrong direction on a tune from one particular well known ECU tuner. I can't say that these guys are selling snake oil because they usually do what they say they do but most owners don't understand that the mod to their bike is not necessarily making it better. They're doing things like removing the throttle pre-control in the lower gears so that the bike may feel like it's got more power when all they're doing is removing a feature that smooths the introduction of traction control. They might also raise the rev limit which will, of course, generate a higher HP number at the peak if the fueling is there. Who operates their bike often enough at the rev limit on the street to make that desirable? They might be advancing the ignition making it create more power at the risk of operating near a damaging configuration for the engine.

And then, there's the hassle every time you take your bike back in to the shop. If BMW needs to reflash your ECU you now have a problem. You have to reflash your bike back to the OEM code before you take it in and then put your flash back after you bring it back home - of course that means that you're going to lose whatever BMW just did to it unless you go back through the whole process again with the tuner to send them your ECU and let them mod it.

If you're going to submit your bike to an ECU reflash type tune, I'd be asking all these questions before I let them start recoding my bike. And seriously, more to the point, what problem are you really trying to solve? Why in the world would anyone buy the least sporty version of the 1600; the one that is supposed to be as much cruiser as tourer; and then try to make it go way in to triple digits on the speedo? But, whatever floats your boat says I. My post is just aimed at making sure you guys ask all the right questions to know what you're getting if you're going to spend $1K+ on tunes.
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My post is just aimed at making sure you guys ask all the right questions to know what you're getting if you're going to spend $1K+ on tunes.
+1... all engineering is tradeoffs and once you start mucking around in the ECU, be prepared to have the engine grenade on you. It may not be intentional but stuff can get missed and the law of unintended consequences rules.

Had one of the first S1000RR's and when Jeff Feit (then at Ford Racing now at Cosworth) had all of his gear connected up he turned to me and said "you really sure you want to do this? I don't see a spare engine in this garage." and he really knew what he was doing.
I wouldn't think it would apply to this procedure as it's not maintenance but, rather, an alteration -- and a relatively significant one, at that.
I don’t often run across people who have actually read it...you apparently have, as have I. The language that you are referring to is what the act was originally intended for. People assume there is a case that unless the manufacturer can prove that your modification caused the failure that they have to cover it. I suspect there is a lot of gray area there. But what is not so gray is that most mainstream manufacturers have a lot more attorneys and money to throw at is so as not to set a precedent.

Good response on your part.
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I don’t often run across people who have actually read it...you apparently have, as have I. The language that you are referring to is what the act was originally intended for. People assume there is a case that unless the manufacturer can prove that your modification caused the failure that they have to cover it. I suspect there is a lot of gray area there. But what is not so gray is that most mainstream manufacturers have a lot more attorneys and money to throw at is so as not to set a precedent.

Good response on your past.
I only read it after reading you post because I had no idea what you were talking about! And yeah, it's an incredibly steep uphill battle going up against an entity with very deep pockets.
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Something I never understood was the guy buying a 6 cylinder pickup and spending a ton of money to make it go fast. Why not buy the model with the hemi to start with? Then you get suspension and brakes and drive train and all the goodies it needs.

Same thing with a speed limited bike. Somebody did that for a very very good reason. If you want to go fast, why not buy something capable of going fast? Doesn't anyone think of legalities? I have a really hard time feeling sorry for a guy that profits from these tunes, then the whole thing go south with a crash and a lawsuit, and the tuner loses everything, wife and kids included.

Young man, you're a fool and an idiot to go down this road.
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