V8 500 thing of beauty!

[HenryDorsetCase]

my favourite is still the v12 CBX. though one I can see and smell and touch has to be good.

[crazy man]

You've only gotta check its race results (well, the few it actually finished) to see just how fucking uselss it was mate!

to be fair if a 2 stroke fired ever sec stroke like a four stroke it would be even! what would win then! honda were doing the imposable at the time and if it was not for that kind of thing been build were would four strokes be today

[Crasherfromwayback]

to be fair if a 2 stroke fired ever sec stroke like a four stroke it would be even! what would win then! honda were doing the imposable at the time and if it was not for that kind of thing been build were would four strokes be today

To be fair, that's too bad for the four stroke. Honda were only doing it to try and prove four storkes rule, when back then, they certainly didn't. Honda have always been, and will always be anti two stroke. Modern four strokes share nothing other than very over square designs with that oval pistoned pile of shit. If it was a good idea...there'd be modern versions of it now. Notice...there ain't.

[imdying]

If it was a good idea...there'd be modern versions of it now. Notice...there ain't.

To be fair, Honda hold all the patents for oval piston technology.

[Crasherfromwayback]

To be fair, Honda hold all the patents for oval piston technology.

And they might as well wipe their corporate arses with them.

[imdying]

Yup, for all they'll ever do with them I expect.

[baffa]

The logic "They dont use it now, there it's a shit idea" is pretty poor tbh.

Most production vehicles switched from Carby to fuel injected in the 80s, but over the last 10 years there have still been heaps of bikes still without injection, mine included. Does that mean Injection is/was shit?

Different engine designs such as the rotary was a revolutionary idea, but the cost of R&D and bucking the established trend proved too hard for most manafacturers, so they stuck with good old pistons rather than trying new technology like say the Quasiturbine.

I'd love to see a modern day attempt at the oval cylinder, the standard piston and cylinder has been around since steam engines, there are better alternatives.

[Crasherfromwayback]

The logic "They dont use it now, there it's a shit idea" is pretty poor tbh.

Most production vehicles switched from Carby to fuel injected in the 80s, but over the last 10 years there have still been heaps of bikes still without injection, mine included. Does that mean Injection is/was shit?
.

The carby vs injection comparison is not a good one I don't think. We all know why injection is so good. Why not try and tell us why oval cylinders and pistons are so shit hot instead.

[Mental Trousers]

If it was a good idea...there'd be modern versions of it now. Notice...there ain't.

It was such a good idea everyone changed the rules to outlaw them after seeing how much the NR750 beat everything else in the Swann Series in Aussie. The problem in GP's was they were being raced on a very uneven playing field. There's no way a 500cc 4 stroke will move as much air as a 500cc stink pot no matter what shape the piston is, they're only moving half the air/fuel. But oval pistons piss all over round ones in 4 stroke racing.

To be fair, Honda hold all the patents for oval piston technology.

The logic "They dont use it now, there it's a shit idea" is pretty poor tbh.

Most production vehicles switched from Carby to fuel injected in the 80s, but over the last 10 years there have still been heaps of bikes still without injection, mine included. Does that mean Injection is/was shit?

Different engine designs such as the rotary was a revolutionary idea, but the cost of R&D and bucking the established trend proved too hard for most manafacturers, so they stuck with good old pistons rather than trying new technology like say the Quasiturbine.

I'd love to see a modern day attempt at the oval cylinder, the standard piston and cylinder has been around since steam engines, there are better alternatives.

Maybe there should be a class limited by how much air gets put through the engine. That way you'd have stink pots vs 4 strokes vs rotaries vs fucken alsorts.

[Crasherfromwayback]

It was such a good idea everyone changed the rules to outlaw them after seeing how much the NR750 beat everything else in the Swann Series in Aussie. The problem in GP's was they were being raced on a very uneven playing field. There's no way a 500cc 4 stroke will move as much air as a 500cc stink pot no matter what shape the piston is, they're only moving half the air/fuel. But oval pistons piss all over round ones in 4 stroke racing.





Maybe there should be a class limited by how much air gets put through the engine. That way you'd have stink pots vs 4 strokes vs rotaries vs fucken alsorts.

They banned TZ700 flat trackers too. But that's hardly the point. Don't get me wrong...NR750's are fucking cool, and I'd give my left and half my right nut to own one. But it's a cunt of an engine design fraught with problems.

[crazy man]

It was such a good idea everyone changed the rules to outlaw them after seeing how much the NR750 beat everything else in the Swann Series in Aussie. The problem in GP's was they were being raced on a very uneven playing field. There's no way a 500cc 4 stroke will move as much air as a 500cc stink pot no matter what shape the piston is, they're only moving half the air/fuel. But oval pistons piss all over round ones in 4 stroke racing.





Maybe there should be a class limited by how much air gets put through the engine. That way you'd have stink pots vs 4 strokes vs rotaries vs fucken alsorts.

and as l recall loris capirossi set a speed record on the nr750 as well

[dangerous]

Really? Heard of moto3

"really" sounds like a 15yr olds comment, fucked if I know... tell me bout this moto3?

From what I've read (I think it was "V-Four Victory"?) the NR was a bit like the R7's and RC45's: massively detuned for the road. There was talk of some pretty farkin' impressive versions developed in the Honda dungeons but when oval pistons were banned by virtually every racing organisation on the planet it all became a bit of a dead end.

"really" LOL... na news to me, tell me more I was of the belief the NR5 was a slow beast in comparason to the 500 strokers?

to be fair if a 2 stroke fired ever sec stroke like a four stroke it would be even! what would win then! honda were doing the imposable at the time and if it was not for that kind of thing been build were would four strokes be today

ahhh ya what what... what what? break it down man... I have no idea what ya on about

There's no way a 500cc 4 stroke will move as much air as a 500cc stink pot no matter what shape the piston is, they're only moving half the air/fuel. But oval pistons piss all over round ones in 4 stroke racing..

HUH, so a stroker fires twice as much as a 4 stroke... sucks more juce, wears out a hell of a lot faster to, just like compairing a diesel 4T with a diesel 2T, the 2 stroke makes more power but that comes with a price, economy, reliabilty, maintance, etc...
HEY, hows about designing a 2 cycle 4T, you know same engine design as a 2t diesel, that answer ya problem

[Kickaha]

Who fucking cares about some oval pistoned pile of crap and the filthy two strokes, who knows when the V8 has it's next outing?

[dangerous]

Who fucking cares about some oval pistoned pile of crap and the filthy two strokes, who knows when the V8 has it's next outing?

Ohhhh yeah... YOU BASTARDS, stop going

[slowpoke]

"really" LOL... na news to me, tell me more I was of the belief the NR5 was a slow beast in comparason to the 500 strokers?

Sorry I shoulda been more specific, I meant the NR750 road bike, not the NR500 GP machine.

It mightn't have been successful but the NR500 was still a cool bit of kit. It originally came out with 16 inch wheels when the norm was 18's, weirdo upside down forks with external spring/damping unit, side mounted radiators (3 in total), monococque frame/body. So the engine wasn't the only bit of revolutionary tech goin' on. This is the late 70's. They ended up going more conventional with 18's, conventional frame etc and got the thing more competitive but it was never quite a match for the strokers.

Fast forward a decade or two and most of that stuff had transferred from race exotica to common or garden variety road bikes: fireblades ran 16" front wheels until late 90's, VTR (F and SP), VFR side mount rad's, upside down forks are the norm etc. So while it wasn't successful on track, it certainly wasn't a failure.

That's why I reckon Ducati GP bikes are gonna bounce back: unlike Suzuki who have just trodden the same path, they are being revolutionary, dreaming big, and sooner or later they'll connect the dots to something that works better than everything else. If ya want to go as fast everyone else do what they are doing, if you want to be faster you have to do something different.

Now tell me ya don't wanna throw a leg over this: