Restrictor kit removal advice

Discussion in 'UK Motorcycles' started by JR, Nov 10, 2003.

  1. JR

    Andy Carvell Guest

    A 600 bandit will cane the RS125 in every aspect!
     
    Andy Carvell, Nov 10, 2003
    #21
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  2. JR

    Ann Ominous Guest

    What about capital costs in bike /car? Get a free one, did we sir?
    No insewerants to pay either, heh?
    ' Course it's also probably quicker by bike and more fun.
     
    Ann Ominous, Nov 10, 2003
    #22
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  3. JR

    Ann Ominous Guest

    To summarize Steve's and Andrewr's points, not all cars are designed the same.
    Most common or garden motors are running at their most efficient at or about
    55MPF. My car's most efficient speed is 53mph. The engines are _designed_ that
    way coz it's a national speed limit in most countries. It is a compromise, lots
    of engineering decisions are.
    What about cars with LPG? It's more economical to use LPG at lower speeds in
    urban areas and then switch over to petrol at higher speeds on the open roads.
     
    Ann Ominous, Nov 10, 2003
    #23
  4. JR

    Ace Guest

    Nice reasoning, but sadly plain wrong. I've experimented with at least
    three cars with instantaneous mpg readouts, a Jag XJS (6-cyl 3.6l,
    250bhp), the Volvo V70 XC (5-cyl 2.4 turbo, 200bhp) and the Peugeot
    206cc (4-cyl 2 litre, 140bhp). In all of these, the most economical
    speed was somewhat below 30mph.

    Bearing in mind that these all represent higher than average
    performance, it's likely that _most_ cars' best speed would be the
    same or lower, don't you think?
     
    Ace, Nov 10, 2003
    #24
  5. JR

    Lozzo Guest

    Gavsta said...
    I take **** all notice of what my dad ever told me.

    --
    Lozzo
    ZZR1100D, GPZ500S, CB250RS x3
    BOTAFOT#57/70a, BOTAFOF#57, two#49, MIB#22, TCP#7, BONY#9,
    ANORAK#9, DIAABTCOD#14, UKRMT5BB, IBW#013, MIRTTH#15a/16,
    BotToS#8, GP#2, SBS#10, SH#3, DFV#14, KoBV#3.
    Url for ukrm newbies : http://www.ukrm.net/faq/ukrmscbt.html
    www.mjkleathers.com
     
    Lozzo, Nov 10, 2003
    #25
  6. Peak torque figures. On many car lumps >1600cc, you'd be on the upper
    part of the torque curve at anything above 2500rpm. Gearing,
    aerodynamics and driver skill all play a large part in it.

    Multi-valve engines and turbos, in achieving better cylinder filling
    than used to be the case, have flattened the torque curve significantly,
    the peak torque on many standard lumps used to be around 4000rpm.

    With a gentle foot, overdrive or 5 speed box, bimbling along at 3000 rpm
    with a lazy big engine and a road speed of 70mph, you tend to get the
    best of the economy/speed compromise if in a reasonably slippery
    bodyshell, of course.

    That's the other factor in the Yankee thinking - given that most of the
    YankTanks at the time had the aerodynamics of a brick shithouse, if they
    could be kept below 60mph there would be a significant national saving
    of fuel.

    --

    Dave

    GS 850 x2 / SE 6a
    SbS#6? DIAABTCOD#16 APOSTLE#16? FUB#3
    FUB KotL OSOS#12? UKRMMA#19
     
    Grimly Curmudgeon, Nov 10, 2003
    #26
  7. Andrewr At Work wrote
    Presumably he was applying the same rules to you as can be applied to me
    although in my case it is usually a pointless exercise.
     
    steve auvache, Nov 10, 2003
    #27
  8. JR

    Ben Guest

    Bollocks. A Bandit 6 handles like a fish on ganga. It doesn't
    accelerate, it doesn't brake.
     
    Ben, Nov 10, 2003
    #28
  9. JR

    Ben Guest

    Opposite. Modern sports bike cost more to run for any given commute
    than a small car.

    Believe me, I know.
     
    Ben, Nov 10, 2003
    #29
  10. I was going to ask how you know but perhaps on second thoughts ...
     
    Paul Corfield, Nov 10, 2003
    #30
  11. JR

    sweller Guest

    If you want to learn to ride fast, learn on something that isn't powerful.

    Then ride it like a fucking moped.
     
    sweller, Nov 10, 2003
    #31
  12. JR

    christofire Guest

    Straight to a tip/into a bonfire/truck/etc?
     
    christofire, Nov 10, 2003
    #32
  13. JR

    Pete M Guest

    steve auvache made the world a better place for us by saying..
    uninteresting fact #173b

    Vauxhall and Ford, amongst others were well known for engineering huge great
    lean mixtures in things like Cavaliers and Orion injections at exactly 56
    and 75 mph in 5th gear.. Hence a 2.0 GLi Mk3 Cav has official fuel
    consumption of about 50 mpg at 56, and 40 something at 75.. the fact there's
    a huge great flatspot the size of Africa in the middle of the rev range
    is... irrelevant.


    --
    Pete M.

    Golf Gti (For Sale)
    Alfa Romeo 164 TS.
    Wahey, I'm a proper petrolhead again!"
    Liverpool, Great Britain.

    "you can lead a horse to water, but a pencil must be lead"
     
    Pete M, Nov 10, 2003
    #33
  14. JR

    Pete M Guest

    Ace made the world a better place for us by saying..
    I waft about in a big V8 engined BMW rather often, and it's best speed for
    fuel economy is somewhere around 85 mph..


    --
    Pete M.

    Golf Gti (For Sale)
    Alfa Romeo 164 TS.
    Wahey, I'm a proper petrolhead again!"
    Liverpool, Great Britain.

    "you can lead a horse to water, but a pencil must be lead"
     
    Pete M, Nov 10, 2003
    #34
  15. JR

    Ben Guest

    Heheh.
     
    Ben, Nov 10, 2003
    #35
  16. JR

    Hog Guest

    M-Way - 29mpg at 84mph held steady on the Cruise, excellent IMHO.
    Then again 19mpg general urban use.
     
    Hog, Nov 10, 2003
    #36
  17. JR

    darsy Guest

    why are people surprised by this?

    At the other end of the scale though things are different - take my
    CD200[1] for example - cost 200 quid + ~50 quid to get running again
    (battery, sparkplugs, 5l of oil, new inner tube for back wheel, couple
    of pints of beer); insurance: 4 quid on my multibike policy (no,
    really), seems to do in excess of 90mpg...

    [1] please!
     
    darsy, Nov 11, 2003
    #37
  18. JR

    darsy Guest

    the Jeep's best speed for fuel economy is about 82mph[1], although
    it's a straight 6.

    [1] it'll do about 26mpg at this speed[2]
    [2] compared to around 17mpg around town.
     
    darsy, Nov 11, 2003
    #38
  19. JR

    sweller Guest


    I managed 65 mpg [1] with the Guzzi when touring Normandy with a mate on
    an Aprilla 500 single [2].


    [1] I had to redo the arithmetic a few times as that is
    *unfuckingbelievable* I normally get 35-45 mpg, sometimes less.
    [2] I think his mpg figures were shot to bits.
     
    sweller, Nov 11, 2003
    #39
  20. JR

    Ace Guest

    Likewise. Self-delusional bollocks, based on _avergae_ consumption on
    a trip, but almost certainly not true even then.
     
    Ace, Nov 11, 2003
    #40
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