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What exactly is an EFi smoker gonna give us?
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For the manufacturers I believe the real benefit will be easier to make 2-strokes street legal again.
The Shop
Take a look at DI. Direct Injection.
It's much more promising than just EFI.
Arctic Fuel 2 stroke injection has been a disaster and all Snocross racers have ditched the EFI sled
This all sounds nice , but it also sounds like a nightmare with all the added electrical components involved. I haven't seen or heard of a competitive 2 stroke race bike with EFI.....so I take it , one is in the works?
That's why snowmobiles did it to begin with. To compensate for swings in temperature and elevation through out a single ride.
Pit Row
They have a temp sensor, and an air intake sensor. I put a rheostat on the temp sensor (20ohm to 15,000ohm) for Ice Racing and it changes the fuel map quite a bit. The air intake sensor basically did nothing on a 2012 kx450, that I could find
http://motocrossactionmag.com/features/rumors-true-ktm-announces-two-st…
It has been no secret that KTM’s Research and Development department in Mattighofen, Austria, has been developing this technology, which offers considerable benefits over carbureted models including drastically reduced fuel consumption while also no-longer having the need to pre-mix fuel or alter the machine’s jetting. Not only that, the new two-stroke TPI models offer a completely new experience in terms of power delivery and rideability, which once again demonstrates KTM’s commitment to its offroad roots, continuing on from the all-new generation of Enduro machines released last year. As market leaders in this segment, KTM believes the new 2-stroke fuel injection technology, known as TPI (Transfer Port Injection), is revolutionary. More information will be available during the international media launch, which begins on May 15, 2017.
There was nothing to maintain 25+ years ago.
I've never once even had to replace an injector, or anything. Ever.
Jeffro, exactly what added electronics? You realize other than a fuel pump and inectors there is basically nothing since current bikes have a digital CDI so you need a small circuitboard and a small ECU.
Man this industry needs to go outside and get off the video games and experience other things in life and see whats out there. Smh.
Here is the best part......how dumb can people be when they say oil is an issue.
It's been 30 years. ..no problems. Again, smh at how far behind the times moto is.
Oil is still injected onto the crank, rods and other areas and still carried up by the incoming air into the cylinder to lube the piston and cylinder walls, so it still has a chance to short circuit and exit raw through the exhaust. Although greatly reduced since you are using targeted oiling and can cut back on quantity.
Also injection after exhaust part closed only happens at low engine speeds and very low loads. As load goes up you need more fuel and hence more injection time. Also as engine speed goes up you have reduced time after exhaust port close. Combine these two factors and it really is a very small window in speed/load where you inject during closed ports. So again you have the chance to short circuit some fuel mixture out the pipe.
But, even with all that said it is a reduction over throttle body or even port injection in terms of emissions numbers. But the cost of this system to develop and produce is also significant, hence why its really only used to fight emissions regulations. It doesn't truly add a huge benefit to the consumer, well unless your a tree hugging nut case.
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