quick question - motorbike? average power output?
25-01-2004, 09:41 PM
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quick question - motorbike? average power output?
what would you say was a average power ouput for motorbike on the road?
as in id say the average car on the road has about 120bhp, most family kinda cars etc circa that value.
what would you say in a bike?
(just a random question to help me with an assignment - as im not too clued up on bikes so my guess of 80bhp may be proper crap)
as in id say the average car on the road has about 120bhp, most family kinda cars etc circa that value.
what would you say in a bike?
(just a random question to help me with an assignment - as im not too clued up on bikes so my guess of 80bhp may be proper crap)
25-01-2004, 09:42 PM
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what kinda bike we talking about.?
i'd say a 750 would have about 80-100 bhp and obviously going upwards as you get quicker bikes
Balls out turbo'd hayabusas have about 250 ish (I think)
I'm probly talkin bollox, but well
i'd say a 750 would have about 80-100 bhp and obviously going upwards as you get quicker bikes
Balls out turbo'd hayabusas have about 250 ish (I think)
I'm probly talkin bollox, but well
25-01-2004, 09:44 PM
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Originally Posted by Petrucci
average power output including ALL bikes on the road (trails, etc) would be around 50 / 55 bhp ish 
not more
not more
100bhp restriction over there Pet?
25-01-2004, 09:48 PM
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all the above... ill prob edge my bets at circa 60bhp.....
basically ive got an assignment to roughly design an air cooled cylinder head for a motorbike engine.
by putting shed loads of cooling fins on it (heat sink style) then I calculate that I can lose about 126kw worth of heat. (126kw i.e. 170bhpish)
now Im pretty sure that this 'motorbike' engine will never need to lose anywhere near that much heat.... and my reasoning is gonna be... it only abouts 45kw... so even if 50% efficient in terms of heat generation to power its only generating a max of 90kw....
make sense?? no thought not ---- im more than late with it and its gotta be in tomorrow!! pmsl
basically ive got an assignment to roughly design an air cooled cylinder head for a motorbike engine.
by putting shed loads of cooling fins on it (heat sink style) then I calculate that I can lose about 126kw worth of heat. (126kw i.e. 170bhpish)
now Im pretty sure that this 'motorbike' engine will never need to lose anywhere near that much heat.... and my reasoning is gonna be... it only abouts 45kw... so even if 50% efficient in terms of heat generation to power its only generating a max of 90kw....
make sense?? no thought not ---- im more than late with it and its gotta be in tomorrow!! pmsl
25-01-2004, 09:48 PM
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gurnE --> yes, when you buy them, but you don't have to keep the restriction. It's only a out-of-shop restriction which you now have the right to remove 
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25-01-2004, 09:49 PM
#8
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Originally Posted by Petrucci
average power output including ALL bikes on the road (trails, etc) would be around 50 / 55 bhp ish
not more
not more
but as far as sports bikes go,, an avarage must be around the 100 mark
25-01-2004, 09:53 PM
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Honda has started work on a big-capacity " hyperbike " using a V5. The 1200-1300cc machine will replace the CBR1100XX Super Blackbird. The five-cylinder configuration should give it an edge on rival fours like the Kawasaki ZX-12 and Suzuki Hayabusa, with a power output close to 200bhp.
now thats quick for a n/a bike no weight etc
now thats quick for a n/a bike no weight etc
25-01-2004, 09:56 PM
#14
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Originally Posted by gurnE
Originally Posted by Stu @ M Developments
BTW,
Pets got a PAIR of Dukes
Pets got a PAIR of Dukes
dont tell me a 998 cos ill be booking a trip to france now
25-01-2004, 10:00 PM
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so when do you book your fly ?
Oh BTW, take Stu with you while you're doing this, cause if not, i will NEVER manage to make him comere here and visit me !
Oh BTW, take Stu with you while you're doing this, cause if not, i will NEVER manage to make him comere here and visit me !
25-01-2004, 10:00 PM
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Yamaha R6 2004 is 90.5 kW (123hp) @ 13,000 rpm
Suzuki gsx-r 600 is about 110 hp, but Suzuki's are usually rated less than other bikes
Honda CBR600RR is 115 bhp at 13,000 rpm
Kwaki ZX-6R is 118ps (whatever PS is!!!)
lol, yes, i'm bored as fcuk
Suzuki gsx-r 600 is about 110 hp, but Suzuki's are usually rated less than other bikes
Honda CBR600RR is 115 bhp at 13,000 rpm
Kwaki ZX-6R is 118ps (whatever PS is!!!)
lol, yes, i'm bored as fcuk
25-01-2004, 10:01 PM
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pmsl - now pet I know you are the super board running master etc! but you are managing to back date your posts a bit??!! its like the old problem with the user clock settings? has that gone a miss?there is a yellow duke I like (i dont know bikes as I said!) that id seen once in flux's garage at brands. had cool wheels on it - bit like car alloys designed looked superb! and different in yellow!!!
stu - or anyone else pretty good with engines etc... the efficiency thing i mentioned - what would be a reasonable efficiency to guess at - i.e. total power output without any losses ---- compared to losses etc and flywheel output?
25-01-2004, 10:02 PM
#21
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Originally Posted by Petrucci
so when do you book your fly ?
Oh BTW, take Stu with you while you're doing this, cause if not, i will NEVER manage to make him comere here and visit me !
Oh BTW, take Stu with you while you're doing this, cause if not, i will NEVER manage to make him comere here and visit me !
25-01-2004, 10:02 PM
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Yes Adam, but better put the R6 on the rolling road to verify this, cause they usually tend to lose 35 BHP between the paper and the real figures at Yamaha !
Melv --> yes i had a fooked up cookie, sorry for this
Melv --> yes i had a fooked up cookie, sorry for this
25-01-2004, 10:04 PM
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got some talk the french man hasnt he!!
and today pet's specialist subject is.........................motorbikes!!! www.passionrandombikemanufacturersname.com
and today pet's specialist subject is.........................motorbikes!!! www.passionrandombikemanufacturersname.com
25-01-2004, 10:06 PM
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Originally Posted by gurnE
Originally Posted by Adam Ash
(whatever PS is!!!)
25-01-2004, 10:07 PM
#27
Originally Posted by Adam Ash
Yamaha R6 2004 is 90.5 kW (123hp) @ 13,000 rpm
Suzuki gsx-r 600 is about 110 hp, but Suzuki's are usually rated less than other bikes
Honda CBR600RR is 115 bhp at 13,000 rpm
Kwaki ZX-6R is 118ps (whatever PS is!!!)
lol, yes, i'm bored as fcuk
Suzuki gsx-r 600 is about 110 hp, but Suzuki's are usually rated less than other bikes
Honda CBR600RR is 115 bhp at 13,000 rpm
Kwaki ZX-6R is 118ps (whatever PS is!!!)
lol, yes, i'm bored as fcuk
Crankshaft figures
Lots less at the wheel
Mark
170bhp@wheel and rising
25-01-2004, 10:11 PM
#29
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Originally Posted by Petrucci
BTW, Ducati figures are taken at the rear wheel, compared to Jap figures which are taken at crankshaft
25-01-2004, 10:15 PM
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Originally Posted by Gareth T
who cares,, the 998 IS the best looking bike ever
Not too keen on the 999 tho
25-01-2004, 10:17 PM
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999 has to be seen a lots of time to appreciate it. But i think it will also become a standard as years pass. It has to last 10 years, don't forget !
But anyway, i'm with you, I will never prefer the 999 to the 998
But anyway, i'm with you, I will never prefer the 999 to the 998
25-01-2004, 10:20 PM
#35
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999 has to be seen a lots of time to appreciate it. But i think it will also become a standard as years pass. It has to last 10 years, don't forget
get some photos up then? has it been remapped yet?
25-01-2004, 10:30 PM
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stu - or anyone else pretty good with engines etc... the efficiency thing i mentioned - what would be a reasonable efficiency to guess at - i.e. total power output without any losses ---- compared to losses etc and flywheel output?
