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Thread: MotoGP's 250cc replacement class: The technical rules

  1. #16
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    This could end up to make a great race series thats totally different to the WSS but think Im just going to have to wait and see because at the minute I cant see enough of a difference between the two classes.

    That and I have a soft spot for 2 strokes
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  2. #17
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    Quote Originally Posted by CHOPPA View Post
    So potentially we could see v4s...
    Yes, potentially we could see a V4 but doubtful when most manufacturers will already have a certain amount of R&D on inline 4's or V twins so they will more than likley use this as a base.

    Also what manufacturers are signed up for this so far? I remember seeing a list before but can't seem to find it now
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  3. #18
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    Would it make any sense to make a motor with less than 4 cylinders when the maximum engine displacement is the same for all configurations?
    Also, less revs allowed the fever cylinders you have.

  4. #19
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    Quote Originally Posted by racerhead View Post
    Yes, potentially we could see a V4 but doubtful when most manufacturers will already have a certain amount of R&D on inline 4's or V twins so they will more than likley use this as a base.

    Also what manufacturers are signed up for this so far? I remember seeing a list before but can't seem to find it now
    Huh? Honda, suzuki and ducati all have motogp bikes (only 200cc more) with v4 configurations, so they could just as likely build one of them!

  5. #20
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    Quote Originally Posted by k14 View Post
    Huh? Honda, suzuki and ducati all have motogp bikes (only 200cc more) with v4 configurations, so they could just as likely build one of them!
    Yes I know this but these engines will be built to a totally different spec to the moto gp ones. And the idea of this series is to cut costs so I dont think the motogp technology will be reliable enough in the long run.
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  6. #21
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    Quote Originally Posted by k14 View Post
    Huh? Honda, suzuki and ducati all have motogp bikes (only 200cc more) with v4 configurations, so they could just as likely build one of them!
    yes but if you look at above rules, alot of those engines would never work, all the fancy stuff in motogp bikes not allowed to be used in these bikes.

    look at the price of the ecu they are allowed, (which is jackshit really price wise, my yoshi em-pro is worth that sorta figure

  7. #22
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    Quote Originally Posted by Cajun View Post

    9.4 The engine (excluding exhaust, throttle bodies and ECU) used in a race is available to be purchased
    by another competitor in the same race for a fixed price of ?20,000 (Euro). Such purchase request
    must be made in writing to Race Direction within the protest period, that is within 60 minutes after the
    official end of the race. The transaction and delivery will be completed immediately at the end of the
    60 minute protest period and will be underwritten by IRTA. Teams refusing to sell when presented
    with a valid request will be disqualified.
    This is another thing i like to raise, i didn't really pick it up first time, but re-reading the rules i noticed it

    This is starting to pop up in alot of rules for racing, means buy a faster riders bike, and learn there secrets.

  8. #23
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    That's a pretty low rev limit for a 4 cylinder 600. Dare I say it we might actually see some supersport bikes with a bit of midrange appearing on the shop floor in a few years time.

    Realistically 250GP's have been an Aprilia Cup series recently with a late appearance by KTM, so I'm looking forward to seeing a bit of variation again.

    The engine cost limitation has been nicely done too I reckon, which will mean lots of smaller teams are effectively able to compete with the bigger teams if they are smart enough. Bye bye 2 strokes, but I'm liking the sound of it at the moment.

  9. #24
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    Quote Originally Posted by slowpoke View Post
    Realistically 250GP's have been an Aprilia Cup series recently with a late appearance by KTM, so I'm looking forward to seeing a bit of variation again.
    .
    variation, what variation. everyone will have the same motor (unless there ignorant) the frames will then have to generally match the motor and if you all have smart engineers the fairing design should be rather similar.

    its basically WSS with a claiming rule on engines. and everyone will use ten kate cbr600 motors. so its a cbr600 cup. theoretically of course.

  10. #25
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    Quote Originally Posted by lostinflyz View Post
    variation, what variation. everyone will have the same motor (unless there ignorant) the frames will then have to generally match the motor and if you all have smart engineers the fairing design should be rather similar.

    its basically WSS with a claiming rule on engines. and everyone will use ten kate cbr600 motors. so its a cbr600 cup. theoretically of course.
    Nup, don't think so, not at this early stage. Check out a Honda Sp1/2, then check out a Bakker framed Sp1/2 or a Durbahn SP1/2 (anything Durbahn for that matter) all completely different beasts with completely different ways of going about the same task. Or a Bimota vs it's donor Ducati, Suzuki/ Yamaha bikes. This could be something pretty special.

    Early days to be rubbishing it without a single bike made.

  11. #26
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    It was a sad day when they annouced the end of 250GP great bikes and class, but will be interesting to see how these 600's come out in the end, who knows could have them on our shores too

  12. #27
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    Quote Originally Posted by slowpoke View Post
    Nup, don't think so, not at this early stage. Check out a Honda Sp1/2, then check out a Bakker framed Sp1/2 or a Durbahn SP1/2 (anything Durbahn for that matter) all completely different beasts with completely different ways of going about the same task. Or a Bimota vs it's donor Ducati, Suzuki/ Yamaha bikes. This could be something pretty special.

    Early days to be rubbishing it without a single bike made.
    true. but all those are road going creations designed with lots of different elements. not just speed. and the yama/suzuki have complete diff motors (outside both having 4 cylinders in a line) so the frame will be made round the motor.

    but yes you are right im slagging it off only cause its making an identical class that we have already but flogging it off as something else. however i will wait to see how she goes.

  13. #28
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    The rev limit will be the big thing - easy changed by the organiser if they are slower than the 125's !

    I'm with k14 on the engines, if - its a big if - the manufacturers get on board, there's plenty of good engine configurations around in MotoGP that could easily be adapted. Most of the fancy bits are there for the high rev's of the 800's, less exotic materials would do the job at these low rev's. Besides magnesium, titanium & other alloys are now pretty common in road bikes. As for the engine ECU - software is only code & is therefore free, so fancy mapping will be all on.

    I'll depend a lot the manufacturers getting in though. I expect Aprillia, KTM & maybe Ducati, Triumph ? along some of the Japanese. But what is in it for them ?

    Its a big gap to fill from 125's to MotoGp but in bike mad countries like Spain they could make it happen.

    I love the 2-strokes but this the makings something pretty good - MotoGp may even have to come down to 600 from 800 if they keep getting faster. Maybe a common platform with different bits & rev limits in time to come ?

  14. #29
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    Quote Originally Posted by rsnut View Post
    The rev limit will be the big thing - easy changed by the organiser if they are slower than the 125's !

    I'm with k14 on the engines, if - its a big if - the manufacturers get on board, there's plenty of good engine configurations around in MotoGP that could easily be adapted. Most of the fancy bits are there for the high rev's of the 800's, less exotic materials would do the job at these low rev's. Besides magnesium, titanium & other alloys are now pretty common in road bikes. As for the engine ECU - software is only code & is therefore free, so fancy mapping will be all on.

    I'll depend a lot the manufacturers getting in though. I expect Aprillia, KTM & maybe Ducati, Triumph ? along some of the Japanese. But what is in it for them ?

    Its a big gap to fill from 125's to MotoGp but in bike mad countries like Spain they could make it happen.

    I love the 2-strokes but this the makings something pretty good - MotoGp may even have to come down to 600 from 800 if they keep getting faster. Maybe a common platform with different bits & rev limits in time to come ?
    from an engineering standpoint all that is being done in motogp would be irrelavant. The design of most engine parts is determined as a basis of the inherent strengths (and weaknesses) of the construction material. so you would have to completly redesign an engine to use not soo special values, rod, cranks ect.

    with the cost limit on engines it isn't worth building an engine. if you use one engineer for a year you have already blown the budget for building an engine. and you havent built it yet. so the only option is to go production and bolt a few bits too it. i imagine that ten kate may well spend what 10 grand per motor?? i dunno.

    I can actually see the claiming rule getting abused by current 250 teams. I mean theres obviously those that have the budget of a couple of million. and thats just bike. So you could slowly add bits to a motor and let the competition take the old one so you keep advancing. it would be stupidly expensive and require large amounts of planning but theres no harm in it. actually if you were really deviant you could design a motor to be destructible on the cool down lap. make it super fast then blow it up so no one knows your secrets.

    man i should go work in f1. hahahaha.

  15. #30
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    Sounds good i cant wait to see them in action
    I want to ride everyday...... Fuck work

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