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April 18, 2024, 01:43:16 AM

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GP Bikes beta21c available! :)


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Messages - grimm

241
Tracks / Re: [GPBikes][WIP] Nordschleife smoothed
March 11, 2014, 04:41:16 AM
Quote from: janaucarre on March 09, 2014, 06:53:20 AM
Sorry i don't understand what do you want to say by:
but I'm not sure I will turn up any odd gaps on (or off) the track.
But if i understand the rest i can post the track this night.



Odd gaps = places you fall through the track. ;)


Didn't find any, going to test the new version in the morning 11:00PM here in Wisconsin. Thanks for all the hard work to sort the track! The community appreciates it more than you will ever hear directly.  8)
242
Tracks / Re: [GPBikes][WIP] Nordschleife smoothed
March 09, 2014, 06:09:44 AM
After seeing the request for bug reports I've been riding the ring a bit more (and even thinking back on the times I did before) I haven't run into anything peculiar at all. Just a really bumpy track. I'll spend an hour or so on it again today, but I'm not sure I will turn up any odd gaps on (or off) the track.
243
I think I am seeing a common theme here, the GP Bikes community is small because we are very like minded. Can be a good thing and can surely cause some pretty strong arguments as well, but one thing is for sure, we are loyal to our cause of top end motorcycle technology and control.  8)
244
Geometry of the bikes has relaxed a great deal allowing for not only a far easier to ride bike, but allowing the wheel slip to be regulated alot better as well. Tire technology makes up for the "relaxed" geometry numbers and there by reduces head shakes and rear end slides to what is given as a rider input rather than just a character of the bike's behavior.

Early 500GP (a rather accurate scale model, but none the less a good example):





Late era 500GP (you can see the clear difference in suspension design, not much else changes all that drastically though):





Current era MotoGP (Vastly longer in the suspension department, shorter frame and engine distance between the wheels, the list goes on and on with the ways the engineers centralized the mass of the bike, a Honda trade term was coined by this sort of development, and with it came an ability to expirement with smaller diameter tires, different levels of suspension travel, swingarm pivot location could be changed for a far more drastic effect with a longer swingarm, fork rake and trail could be completely modified to suit tire compound and track surface in a way the 500's could only dream of in the late 80's and early 90's):

245
Quote from: HornetMaX on March 05, 2014, 11:18:07 PM
Quote from: grimm on March 05, 2014, 11:05:06 PM
What happened to the massive wobbles? The wheelies? The tire smoking power slides?
They all disappeared, because they make you slower.

*snipped out a bit of the reply there*

MaX.



Indeed they can make you slower, but the point I was making is that the current limit doesn't look like the limit until there is a shower of sparks, same thing Kenny was stating in the original video. I guarantee the front and rear end slides of a current MotoGP machine feel far more under control, but it is the same slides that the old 500's had as well, physically bikes haven't changed much at all since the days of the 500's, sure you can account for carbon fiber and titanium being massive effects on how rideable the machines are, but in a sense of pure performance they run at a parallel.

My point of my reply to begin with, and ended with it as well, stated that there really isn't much to compare aside from how interesting it is to watch.



My unprofessional, unsolicited, and unprovoked opinion shining through in the next bit of this, so take it with a grain of salt. No need to poke this part full of holes although some will strongly disagree I'm sure. lol

I'm a die hard vintage bike guy, KZ1000's, CB T's and F's, GS's, the lot of 'em I've owned and flogged pretty hard. My interest in Honda CBR900RR's is solely based on the 893cc models with 16" front wheel dating to the era of the amazing (and last iteration before the 4 stroke revolution) NSR500, and my love for everything Suzuki air/oil 1127 and 1157 is surrounded by the feedback from the bike. When you ride a 900RR or a GSXR1100 to the limit it "speaks to you" in a way that a '05 CBR1000RR or a '07 GSXR1000 just can't. Tire technology is far from what is solely to blame as well.

Swingarms got longer as engine cases shrunk and transmissions were stacked vertically, engines shoved as close to the front axle as possible, and seating positions forcing you into the race tuck regardless of your skill levels on a sport bike (or more aptly known when I began my infatuation with riding, a "race replica"), for the kiddo's reading this, that is where all your funky pirate sounding bike names comes from, CBR----"RR" as in, "Race Replica" ;)). Always laughed at the sight of a bike with a bazillion R's in the name as if to say to the unknowing, "this thing is serious". LOL

I know I am drifting a bit off topic here, but bear with me, and keep in mind, the ones of us who watched the technological evolution of motorcycle racing don't prefer to watch 500's because they were "better" by any measure, or even faster, but it was the courageous riders that picked up a wheelie at the end of a corner and didn't set it down until the braking zone of the next that made us stand up from our seats and cheer them on. Mr. Roberts himself has said time and again in interviews he caught hell for his behavior on (and at times off) the track due to his enjoyment of everything hooligan on two wheels. For bloody sake the man rode a TZ flat tracker to a stunning victory on a few occasions when Harley owned the dirt miles for years prior... I agree with him when he said "MotoGP is far removed from what the 500 era was.". But I have to say it's not that different at all, only us older guys feel so. :)
246
Having been a young gun at the end of "Steady Eddie" Lawson's career as a rider, watching the greatest of the greats retire, and lusting after bikes such as the RGV500, NSR500, and Cagiva's, I am proud to state that era is gone, the new MotoGP is a different breed and a different era, not much to compare. My personal opinion of current motorcycle racing is about equal to my opinion of F1 racing. 500's and the F1 Turbo era are the cream of the crop for me, the best of the best, the fastest of the fast. Back when men were men and the boys stayed home and played with the idea of racing a motorcycle.


The greatest riders of all time lived in the 500GP era, NOT to say that current riders are not as talented, they probably are more talented, but the sheer courage it took to ride a 500GP machine is so far removed from current motorcycle racing. I guarantee you put Rossi on Lawsons old Cagiva and he would come back totally disgusted with the way it behaves.


This is the 3rd of three parts, skip to 5:15 for the take on a 500 world champ telling a current MotoGP rider what it's about.  ;)

http://www.youtube.com/watch?v=1Vw_xRy-u-g


It was a common occurrence for a newcomer to 500's to take some practice laps, mark a horrible time, and nearly hang up their leathers because they felt that the bike was far beyond anything they could control or handle. Lawson himself as well as Roberts both often lament on the fact they struggled at great lengths to adapt to the incredible behavior of the 500's.




Kenny's take on 500 versus current MotoGP was that the 500's had a limit you could find with enough skill, current MotoGP has a limit you ride and if you are off the pace it is still manageable, you just are not as fast as the next man. If you can ride the edge of a current GP machine you are world class, if you could win on a 500 you had a true gift as a rider. Simple statements from a man who has a few lifetimes worth of experience.


Current MotoGP, to me, just like current F1, looks like spec racing. Battles are won by milliseconds and setup rather than true grit and endurance as a rider hammering out the limit corner after corner. Honestly the current breed of GP machines is getting BACK to the 500 era's attitude and demeanor with the added flavor of technological development. Racing has become safer, but with that safety comes what feels and looks so watered down I only care to see the highlight reels at the end of a race rather than the actual lap after lap grinding they do. What happened to the massive wobbles? The wheelies? The tire smoking power slides? Without that life and death lightswitch at the limit there is no real reason to watch racing for me, better off watching Irish Road Racing to get my kicks.  ::)
247
I'm from the "north woods" of USA, been riding as long as I have been walking, but only got into motorcycles about 15 or 16 years ago (30 now) after some devastating BMX crashes. Played with a little bit of this and that but always had a soft spot for middleweight bikes around 400cc's, currently have a '99 YZ400F, '07 DRZ400S converted with GASGAS FSE-SM parts, a few CBR900RR's (soft spot for the early 893 engines), and a turbocharged Bandit 1200 that is eventually going to be twincharged (turbocharged and supercharged) with a full Falicon billet crank and rod setup. Shooting for MotoGP engine behavior coupling huge bottom end torque with unequaled top end punch... the ultimate so to speak.












I build stuff like this:





And I do alot of this:






But one of the most rewarding things about a ride is stopping and taking in the scenery.  ;)

248
Tracks / Re: [Track] WIP Breuqauin-Ville
February 25, 2014, 11:23:07 PM
This track is awesome!  ;D

Can't seem to get the video to embed. Cooked the rear tire and managed to get some crazy powerslides out of the 675.  8)
http://www.youtube.com/watch?v=dE35IFlo8yo
249
Bikes / Re: Supermotard?
February 25, 2014, 05:49:11 PM
This is the first time I've ever so much as asked about anything for any game/sim....




Any chance this will ever be released? Even for private use?
250
Bikes / Re: Supermotard?
February 16, 2014, 06:11:05 PM
 ???


The way I always knew it was that a supermotard is a type of motorcycle, supermoto is the racing a supermotard is used in. At least that's how I remember it to go when I was a kid and nobody even knew what they were. I remember sitting in front of the TV on sunday mornings watching re-aired episodes of ABC's Wide World Of Sports featuring the "Superbikers".

Similar to what I'm saying when it gets to the machines section.
http://en.wikipedia.org/wiki/Supermoto


My Suzuki/GasGas/Marzocchi/Brembo/pureawesomesauce supermotard that I ride like a 'tard. (pun intended  8))



251
Bikes / Re: Supermotard?
February 16, 2014, 05:25:47 PM
Not to be the flat tire of the conversation, but, not everyone that rides a supermoto rides motocross. Some of us are apex chasing knee draggers that got tired of overpowered or overweight street bikes and prefer to drag knee on a supermoto...


Just my 2 cents here, but I am sure I'm not the only one that doesn't ride foot out and would really have a good time on the tighter more technical tracks of GPB given even a half decent supermoto (even if it is underpowered on larger tracks). The screen shots have my mouth watering for some wheelies.  ;D



A GPB release of a SM model (no matter the state of it) would give me more reason to start up GPB more often.  ;)
252
Physics / Re: Maybe no one noticed...
December 21, 2013, 02:10:28 PM
Quote from: C21 on December 21, 2013, 01:32:14 PM
@cjmc78
Thank you for the Exel file.
Great help on developing engines.
It´s much easier.
Good work :-)

Just one question:
Is it a must to work all points out or can i leave point 11 and 12 blank?
In detail:
e.g. If the engine is only cabable to rev to 14000RPM (rev limiter) why should i add higher rev points? If the engine revves above the limiter it will most likely destroy itself ;-)


I´m modifiying the cbr1000rr engine (which uses the Murusama data obviously right now) within next days to get a standard engine, a mild tuned engine (exhaust and Ecu mods (in real life: Powercommander for example), Superstock and a Superbike engine (based on real data). So we get the CBR1000RR closer to reality ;-)


I was beginning to wonder that too. For example, a 2005 CBR600RR rev limit is a far cry from a 2007 R6 rev limit. Could only imagine spinning what would seem to be a 600RR up to 17,000rpm.  :o