The new 1250cc Boxer Engine with BMW ShiftCam
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- Опубліковано 7 вер 2024
- The twin-cylinder boxer engine of the new R 1250 GS fascinates in its diversity right from the very first moment. Its character is unmistakable - in every engine speed range. It offers you increased performance and smooth running at low speeds at the same time. The BMW ShiftCam variable camshaft control ensures more powerful torque curve over the entire engine speed range, providing greater control in every riding situation. Giving you power whenever you need it. More cubic capacity, more power - with higher efficiency. The strong performance with fewer gear changes gives you sovereignty. In short: You feel the boxer's energy even more directly. http:\\www.bmw-motorrad.com/r1250gs
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Can't tell enough how much I love this technology explanations
This is the reason there on top. I’m for one glad to be part of the Bmw family.
Lol. I`m sure they love your wallet.
lol, this system prone to failure since it's activated by electronics and has a small electric motor (in a fkn cylinder head lol). Other manufacturers achieved similar functionality decades ago with much more reliable systems.
Lol! Honda and other Japanese manifacturers made even better engines/systems than this.
Damn those BMW engineers are good. I love the fact that BMW is explaining clearly how something that technical works. Thanks guys.
Adding another 50ccs to the engine is phenomenal when it comes to power! 4 valves per cylinder is a huge improvement too! This Bike is going to take you places! The trick is to learn how to make the engine do its best without delivering too much power for the need that's presented. Great job R&D department! It is liquid cooled too I hope! This is a real improvement!
the R1100 is 1993 was already 4 valve per cyl, next to Oilhead also called RV4.
What Bmw didn’t mention is that the cam gears will wear out prematurely and, for most of us, just out of warranty. When my 1250gsa was in for 20000 km service I was told that the cam gears were worn out - a very expensive repair. The service workshop suggested to Bmw that, given the low mileage of the bike and given that it had been fully serviced at Bmw workshops, they ought to bear the cost for this repair, especially since this isn’t something that should break down at all. Bmw Motorrad replied that they would take 0% of the cost. It was the same thing two years earlier, when the throttle handle and the engine harness broke a month out of warranty. No good will at all from Bmw despite a faulty construction being obvious.
In the end the service workshop settled to change the cam tensioner on the left side, but most likely the problem will come back in a year or two. The service shop said that most 1250:s with shiftcam has cam rattle. Bmw denies it. I checked some Bmw forums and quite soon realised that the workshop statement was correct - a lot of 1250 owners have experienced the problem. Apparently also a few 1300 owners. I traded the bike for another brand but I will never again buy a Bmw. You pay premium for a Bmw and should be able to expect a qulity on par with the price. But insted you get poor quality wih no responsibility taken by Bmw. Similar story on the car side of things. Bmw make bold claims that cam timing chains are so much better than belts, but a fact is that the chain fails way more often than the belts used by other manufacturers.
Wow, and thrice wow! how good is that for technologiy? I'm humbled and emotional just watching this short video,... mankind at its best. Thank you.
Just another flavour of vtec. Honestly pretty much every carmaker has this kind of valve timing system with different names
Shiftcam just kicked in yo
Simply the best boxer ever!
Wow ! Implementing VVT system (Double VANOS ^^) in a motorbike engine ! Well done ! This engine will have a real double personnality ! Can't wait to test that !
Tu sors ou j'te sors?
Ma GS ? J'la sors !
If i remember right it has nothing to do with Vanos.
Vanos just adjusted the angle between the 2 cams
Vanos only changes the timing, not the lift. This shiftcam is more interesting
This is vvl, wich is similar to valvetronic. But doesn't work in the same way.
Beautifully simplistic. Like most of my marriages.
Checking the valve lash will be interesting
Not only checking valves lash but also the mechanical of shifting cam itselft.
I don't know when shift cam is activated? cam is shifted variable engine load while engine run or when rider selected a riding mode. can not wait.
@@datnguyen1615 maybe activated with oil pressure and some solenoid i think, but looks reliable then vvti technology
So it's basically V-Tech for BMW motorcycles? Love the concept, and it's super cool. Just wondering if it's in the same ballpark?
Is there any automatic decompressor device in this engine? There are a number of R1250GS owners complaining about starting problems, so wondering if there is any device relieving the electrical system during the start.
WTF is 'Sovereign Acceleration'? 😆 I need some of that in my life
they found it from the thesaurus lol
I think they falsely translated the similar sounding German word „souverän“ which doesn’t have an exact English translation but in this case means something like „more than enough“ / „superior“.
nice ride
Best technology ever, am in love ❤️😍
The differential intake timing on the partial load setting is interesting. Would love to know more about the engineering/physics thought behind it.
It causes more turbulence in the combustion chamber. Other companies have used different sized intake valves to do the same.
pity this system is the same called i-vtec made from Honda 30 years ago (VRF 800)…what a new!!!
What makes each of the two pins raise and lower to shift the cam across? Hydraulic/electric/mechanical? When it comes to reliability I guess the cam shaft is good for many hundreds of thousands of miles, and whatever the shift device is is just under the cam cover to easily accessed if it becomes faulty?
Electric motor. But honestly, even if it failed, you won't be stranded. The cam might just be in one position which changes the power band.
there are many 1250 with camshaft problems
Best. Of the best.
Great Motorcycle.
So you made a manual laterally sliding vtec engine instead of an oil actuated separate lobe on the cam it has a sliding shift gate. Should’ve just copied the vtec from Honda seems more reliable than a camshaft sliding back and fourth
That's the weak link. They literally made camshaft to slide axially which requires perfect timing and must be done within fraction of second otherwise u know what. Vtec is just way better in that regards.
Good evolution. Now TFT screens for your K bikes please. These models are behind.
great by bmw.hats off
Nice vtec
How may I get new BMW R1250 GS from factory market, not from dealer???
INTERNATIONAL MEETING BMW BOXER IN BENASQUE-THE PYRENEES-SPAIN 14-16 JUNE 2019
Is there a lag when the shift gate does it's "thing". ???
Great video showing the inner workings. What about valve clearances, I can’t see any buckets or shims in this footage, how are the clearances set?
Well, that's a good question!
German witchcraft
Wow !
Waiting for all-new R1250GS Boxer Engine Production clip this year or in 2020 ^^
Please BMW, tell me the news?
Honda launched Vtech in 1983!
Simpler system doing exactly the same...
@@markb4772 Sorry Sir, I think you are wrong.
VTEC stands for Variable Valve Timing and Lift Electronic Control. Watch a Video of it and youll see. Dont confuse with systems like VANOS.
You are totally RIGHT......!!
Thx :), I'm not the only one :)
Well played BMW. you have just revitalized and future proofed
an already great engine.
I have a vtec honda accord -- never again -- terrible. There is so much lag between calling for power and getting it -- too many close calls when passing for me!!
*SHUD'DUP 'N TAKE MAH MA~*
wait... *Checks the price*
._.
Yes, but when are you going to MotoGP?
Inane Observations how the heck BMW isn’t winning in WSBK is unbelievable
So beautiful
This is the Valvelift system used first by various Audis... When did you stop trying?
We are looking forward to Intermot to see it!
Thanks for sending me damaged carbon fibre and a hexacone exhaust that fowled my rear swing arm.
I wonder how will it sound with 270 crank 🤔
Why arent the intake valves synced in the first mode?
Awesome.. would like to buy one .. but no money 💵💵
Worm gear excellent should be durable
Better power outlet than my skoda fabia🤣🤣🤣
A Honda GL1800 Gold Wing também começou com 1000 cc, mas está na frente. A GS também chegará lá, concorrendo com o mesmo tamanho de motor da Gold Wing.
The Honda GS 1800 Gold Wing also started with 1000 cc., but it is in advantage with its 1800cc motor. The GS will also get it, will have motor with the same size. It is in the right track.
Nice👍🥳🎉
too much technology, my love belongs to the simple boxer engine with easy maintenance.
This is one bogus video, the intake valve timing is way off. Have a look at 1:40-1:43 and watch as the intake valves are closing as the piston is coming to top dead center (TDC). There would be almost no compression on the fuel air mix. As it stands, this engine would make no power - Please tell me that the real engine will have better cam timing than this.
Also, that pin being used to shift the cam will shear off.
Plus what holds the cam shaft in either position after it has been moved? Luck???
It's a CAD model so crankshaft rotation timing is a bit off.
Tobi Ogunsanwo Hi Tobi - I used to make CAD models from when the Boeing 777 was brand new (early 1990's - Catia V3, V4), and they had to be accurate, or the plane would not fly. So 25 years later on I'm sure they can get it right.
The exhaust cam is about right but the inlet cam is around 180 degrees off, which I assume is deliberate for some reason??
Looks like BMW posted this and perhaps they would like to challenge my other assumptions also??? Shearing pin?? Lucky positioning??
@@richbinaz Yes, BMW based all the CAD/CAM/CAE modelling on the the CGI video from the marketing department. The cam timing is exactly as you see here in this promotional video. That's what they mean by "Unique engine performance for souvereign acceleration and impressive elasticity"
@@tomcurtis7602 Yes you are right: the clip is correct as per @RichB InAZ comment. The point, in my opinion, is reaching a more efficient and softer response. Torque at any rpm should also benefit from this system. You may like it or not, but I presume it is worth to try one... before we make our mind. I want a test ride!!
So... VTEC?
kinda, this is basically german version of vtec. but this one doesn't seem to have variable timing, only variable lift.
Great but when is the g310r going to get a centre stand and heated grips??
i thought you just drop a g310 to the ground and pick it up again when you want to go?
Link music
De qualquer
Single cylinder?
2 banger
Looks like expensive service - I will hold on to my 1998 Africa Twin!
Here’s the thing. Like some riders (but far from all riders) I prefer the sixth generation Honda VFR. Yep, it has a bipolar personality; sedate below 6700 and manic above it. And, some find the somewhat abrupt transition a tad abrasive. But, I love it - wouldn’t trade it for anything. In the name of refinement it’s possible to engineer the character out of an engine: Is this what ShiftCam has done? Let the debates begin . . .
What is this ? Some vtec thing?
Variable valve timing. So almost vtec, except this one propably doesn't have variable valve timing and works differently. Also audi has used pretty much the same kind of vvl before.
Mantap. Motor seharga 1 M
What rpm is the shift point? Is there hysteresis?
About 5000, depending on the load.
And yes
Neat
❤️
Grate , gave 1995 GS with plastic gas tank which could cost me My life , since the plastic was disintegrating. BMW didn't do anything , didn't send any recall or notification to the owners . When I called BMW they just ignoret me . The offed my new gas tank for around $1800 . Thanks you BMW I'm definitely not gonna bay any product that you made . Shame on you .Martin
How reliable is this though?
Should be pretty reliable, many companies use this technology. honda's vtec might be more reliable, but this should be good too.
Old technology. Audi is being using similar technology for a while… in cars… of course
Kok keren ya
Honda calls this Vtec 😬
Jef Postmus it’s nothing like a vtec dumbass
@@Clungedoctor It does the same thing as vtec, but just in different way.
the jafuu it had the same effect but does it in a completely different way. The entire cam shifts over. BMW aren’t saying they invented it but it’s not vetch.
@@Clungedoctor yup, this closer to how volkswagen does it.
sure looks simpler than the vanos on their cars, maybe not accurate enough for emissions standards to dump the complex car system.
exactly staid copy of honda s2000 vtech tech but more complex and prone to failure
VTEC…
vtech with different mechanism.
Unreliable, expensive repair and will not last 10 years/200 000 km...
just another BMW thingy
😍👍👍👍
Very nice BMW... Can I have one for free plz... I'm poor :)
Lol....
first straighten a banana
Where is the new S1000RR?!
Mony
Getting too complicated...
🇩🇪🇱🇰💖💖💖
So... did Honda’s patent expire?
"Sovereign Acceleration and Impressive Elasticity" and "fascinates in its diversity right from the very first moment" ?? Who authored this nonsense? Who reviewed it? It says nothing that truly describes either basic improved valve lift functionality versus rpm/engine demands and the benefits derived thereof. I don't feel inclined to move away from my 2015 RT and become a test pilot on new technology that BMW can't even describe properly in this video and detail its level of maturity in testing.....no thank you.
Better reduce weight than encrease displacement. BMW aren't fat cruiser
Why would someone want (or use) 136 hp on an off road motorcycle? It is beyond me.
on a 200+kg bike + luggages + passenger... can be useful ! Also, it's a "gelande" and "strasse" motorbike, GS belongs even on "off" and "on" road ! A true GS shines on highways and paths
oh wow, bmw invented vtec.
lol XD
Most stupid idea ever!
Worst engine in all GS history. Unreliable piece of crap.
Bmw is now copying Subaru with Boxer Engines.... COPY CATS!!!!!!!
First Subaru Boxer came out in 1966. The Bavarians do it since 1923. Which isn't the first either but Carl Benz's Contra from 1896
V-tech....nothing new. Maybe just in Germany.
Link music