MotoGP 500

[F5 Dave]

Yeah with nitrous. Maybe introduce a control tyre. Say Metz MC4.

-Though that would probably help in the run off area.

[Ivan]

Haven't paid much attention to the Jap bikes, but the Honda NS125 outs out 48bhp, which isn't too bad for 125.

Far My honda RS125 GP bike only makes 48 HP

[Hillbilly]

Yeah, but that's bhp. The NSR 150 puts out about 40hp.

[Ivan]

yeah its awierd horse power not down low, only after 10,000 rpm
Very fun bike shame to read what Gav said

[F5 Dave]

hp & bhp are the same. There are different dynos, some measure pretty optimistic. Dynojets are pretty much the std as there are so many of them.

But mostly the manufacturers lie. What good is a crank measurement? My bikes all have gearboxes & chains & rear wheels. The tyre is what meets the road.

NSR150 would struggle to reach 30 bhp., your GS mid 40s. maybe

[edit] I got curious er my GS guess so I googled it. http://gstwin.com/dyno_run.htm


How good am I? . . . Well actually not very, this bike had a pipe & jet-kit so std would be say 39

[SimJen]

Yeah Toilets have valves.

Then they blanket banned 2 strokes a couple of years later.

Pooftahs!

Not so, 500cc 2 strokes are still allowed....its just that they can't compete with the current four strokes. I think the four strokes have advanced tyre technology in different ways.
I was reading an article by ex gp geezer Mat Oxley the other day discussing the same sort of thing. Not many people know that 2 strokes are still allowed in the premier class.

[sp3ed]

I thought that 2 strokes were still allowed, just the same as there are a whole heap of different weight rules depending on engine configurations.

So if the 500 2 strokes aren't competitive against the current 4 strokes, and the capacity of the 4 strokes is being reduced to improve saftey, then will the 500's begin to get competitive again and could we see things got round full circle.

Even if this isn't the case, the power delivery is going to get more peaky as the manufactures try to wring as much power as possible out of the smaller motor.

[F5 Dave]

The press had given the indication that 500s were phased out & not allowed after a certain date. Certainly no one would think of trying to compete against a bike twice the size & with freer exhaust restrictions & still with the weight penalties that had been slapped on the 500s.

That’s as unfair as 125 2-stroke MX bikes being put up against 250 4-strokes. -Oh hold on. More BullShite rules means that does happen.

With the 800s they will become more peaky. Maybe they should have just reduced the noise output on the 1000s so quiet that all the R&D went into making quiet powerful bikes? Relevant technology for the road.

Or Peter Clifford’s Brilliant idea of making them 4 speed. That means you have to make them wide range & it limits the power & speed possible. Make for better road engines.

[pritch]

The 500 bikes were widely regarded as "evil".

Reducing the capacity to 800cc will encourage more peaky bikes which will be correspondingly more difficult to ride.

Go far enough down this road (in the name of safety remember) and we could eventually have "evil" four strokes...

[sAsLEX]

Not many people know that 2 strokes are still allowed in the premier class.

Would never do too well in the GP as they have an enforced one race stand down in California

[SimJen]

Go far enough down this road (in the name of safety remember) and we could eventually have "evil" four strokes...

It'll never happen, electronic aids will get more prevalent and smooth everything out. Just like formula one........when the electronics fail they crash.

[Hillbilly]

So that's what keeps happenning to Casey Stoner! Yeah, bring back the 500s.

[Crasherfromwayback]

250 and 125's will go in a few years time as well.

I for one hope not. 250 GP bikes are pure bred race bikes that teach you how to ride and race properly. You can at least purchase one and if you're good enough (and with the help of some 'kit bits') race as a 'wild card' at the GP's!!

if they turn the 'feeder' classes into mini GP classes with 'Diesels' no-one will be able to afford to build one.

Long live the 125's and 250's!!!

[gav]

While the tyres might have improved, I think a 500GP bike would be 2 to 3 seconds a lap of the pace, and thats if Valentino Rossi was riding the 500!

[SimJen]

At Mugello for instance the 500's were doing 1:53's or so, while the Motogp bike of Gibernau set a fastest lap of 1:48.9 this year. Mugello is a high speed track though where the HP of both bikes could be well used to make up time on the long main straight.
Its probably the tighter tracks such as China etc that would have the four strokes kicking considerable ass, as they get on the power so much easier than the high side kings 500's.