Added: 2 years ago
From: motorcyclenewsdotcom
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  • At nearly 1.8L it still couldnt compete with a 500cc two stroke engine.

  • What a sound!

  • I can remember being at the TT sleeping in a tent in the padock and being woken first thing by Trevor Nations Norton on the rolling road.....

    I have yet to hear a better alarm clock....

  • i want a 13bturbo in one . hahahahahha

  • What a SOUND :) and is that up at Jurby Airfield?

  • wow a 588cc twin-rotor Wankel in a bike i love it

  • WOW!

  • that sounds sick. love it

  • yeah... #NICE

  • Comment removed

  • toma no cu

  • sounds cool need more footage

  • Pembrey ?...no it's Jurby Airfield at IOM.

  • Is that Pembrey?

  • the wankel engine isnt a 4 stroke engine. In the wankel engine every stroke ignites petrol, wheres a 2 stroke only produces one egnition per two strokes etc. the wankel is a rotary engine and because the valve is a strange triangular thing it has makes up 3 compartments and one is always igniting petrol. Id post a picture but i can't :)

    Therefore the NRV should be first of the start but probably first in the garage too (reliability has always been an issue). but that doesnt matter on a race bike

  • @RAFiennes

    Rubbish, nonsense..Please see any childs book on engine theory. Sorry, wankel=4 stroke. A two stroke engine has twice as many working strokes pr rev than a 4-stroke. The big difference is that two of the strokes in the process takes place under the piston. A wankel goes though the same cycle as a 4-stroke.

  • @meharidude

    Wouldn't it be fair to call it a 3 stroke as it's 3 stages per crank revolution?

  • @candisuxxgood

    Not really, forget the crankrevs and look at each "cylinder" of the rotor, the rotor represents 3 individual cylinders and pistons. Each "piston goes through all 4 stages. Went the Wankel was introduced it was called a "4 stroke engine".

    Question: If you have a single cylinder 4 stroke engine that is driving an output shaft with half the speed of the crank, would it be a 2-stroke? nah..same goes with the wankel.

  • @drbaltazar the only performance problem with a 2 stroke is there acceleration off the line what they call 'waiting on the pipe' i believe. a wankel is far more superior of an engine as far as dynamics goes.

  • mate, the nrv is a rotary engine like the mazda rx8. its not 2 stroke or 4 stroke. check wikipedia for definition under wankel engine( i kid you not !)

  • @splendidness666

    Actually it is 4 stroke.

  • How much horsepower does the non race bike make?

  • 173 hp

  • I checked on the website and it is the Race bike that makes 170hp. I want to know the street bike. my guess is around 130hp.

  • They are also busy with a 700cc engine. With 200+ hp.

  • Suter SRT 500.

    Just found this. It is a 500cc V4 2-Stroke. It makes 200hp and weighs 275lbs.

  • instant throttle response

  • A Lei e uma Instituiçao dos Homens.

  • sounds awsome

  • Yay rotary!

  • finally, did dunlop run with rotary Norton on TT ´09?

  • He tried but unfortunately was unable to complete the required 2 laps to qualify the bike, in fact it didn't complete a single lap in practice. The first problem apparently was due to lubrication problems and the second was apparently an unsecured brake fluid reservoir cap !! (Unbelieveable at that level) However they were granted permission to do a "parade lap" with TM's. Next year hopefully eh ? ;)

  • try the mazda 787b le mans racer on youtube too - same principle and sounds awesome...

  • rotary bike? sounds amazing!!!

  • amazing sound! I like it!

  • sounds lovely so much more intersting than the inline 4's

  • i smell something new here. and its good!

  • its BRUNO!! lol jk

  • is it rotary engine? it sure sounds like one

  • yes

  • what does that mean?

  • instead of a reciprocating piston engine like all conventional bikes, this has a triangular rotor inside an oval chamber - the combustion on each of the 3 sides/faces causes it to rotate - hence the name... type it into google if u want a diagram :)

  • finally, someone that has a clue about how engines work on youtube!!!

    a rotary has combustion on every side of the rotor and every rotation of the rotor, very very efficient! unlike a 4 stroke engine that has a lot of wasted energy in moving the pistons between combustion cycles.

  • don't get me wrong, i am a rotary fanatic. but a recripricating engine doesnt lose as much power as you would think it does on a stroke. the crank balances it out pretty well. if you have ever spun a crank inside a block with the cylinder head removed you will know what i mean. it take very little effort to spin the crank

    but i am with you, the wankel motor just seems more logical, all the power is going in the same direction, no up and down / start and stop. ROTARY POWER FTW

  • yea but using a rotary engine in a bike will mean no engine braking,= much slower corner speeds and eventualy lead to gettng beaten round a track even if the bike goes like stink.?

  • engine braking means nothign to corner speeds.

    two stroke 125's have minimal engine braking and they have spectacular mid corner speeds.

    singles have huge engine braking but you dont see them beating everything round a track solely due to this point.

  • theres a ? at the end i was stating something i had heard and was questioning it, but i never though about 2strokes having less engine breaking i have a mito and a yamaha yzf r125 and there evenly matched on corners, mito rapes on straights tho.

  • ah ok.

    yep, im sure thats not true. i suppose you could argue that you could argue that big egine braking could make you unstable at apex, but good throttle control will sort that.

    Primarily chassis, tyres, suspension, track surface ground clearance and your right hand wll dictate corner speed.

  • @dimos47ki7 yes it is, a rebirth of a great classic

  • @dimos47ki7 yup

  • @dimos47ki7 yep it is ^^

  • @dimos47ki7

    it is one ;)

  • Very nice sound!

  • what kind of engine is that?

  • I -think- its a Wankel

  • Cool!

  • EPIC!!!!!!!! Love that sound

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