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Re: Ton up Scooter
Posted: Sat Jun 23, 2012 2:38 am
by mickdale
soosh wrote:It's funny when people talk about modern kits being to reach these higher speeds,how fast has Kieth Terry gone on an iron barrel?
wasnt the record breaking white sprinter that did about 130mph on an indian cast iron barrell?
wonder where they would be able to record the speed with enough of a run up
i would go there to watch

Re: Ton up Scooter
Posted: Sat Jun 23, 2012 3:41 am
by badwrench
The world land speed record for a 50cc bike is 131.545 MPH. Yep, fifty cubic centimeters and one hundred and thirty one point five four five miles per hour. It's really about how much money you have to spend.
Re: Ton up Scooter
Posted: Sat Jun 23, 2012 6:21 am
by Muttley McLadd
soosh wrote:It's funny when people talk about modern kits being to reach these higher speeds,how fast has Kieth Terry gone on an iron barrel?
Once, or more than once? :biggrin:
Re: Ton up Scooter
Posted: Sat Jun 23, 2012 8:33 am
by Avantone
I don't think it's possible on a standard bodied scooter unless it's pushing out 40bhp+
However it's very possible with less bhp in a proper streamliner - question is, when does a scooter stop being a scooter?
Re: Ton up Scooter
Posted: Sat Jun 23, 2012 9:15 am
by Muttley McLadd
Avantone wrote:question is, when does a scooter stop being a scooter?
When it sounds like a crosser stuck in second gear.
Re: Ton up Scooter
Posted: Sat Jun 23, 2012 10:50 am
by Darrell Taylor
mickdale wrote:soosh wrote:It's funny when people talk about modern kits being to reach these higher speeds,how fast has Kieth Terry gone on an iron barrel?
wasnt the record breaking white sprinter that did about 130mph on an indian cast iron barrell?
wonder where they would be able to record the speed with enough of a run up
i would go there to watch

i had a straghtliners timing ticket for 103mph thru the quarter on a 70cc fizzy but every other ticket that day shows 74 to 76 mph now id love to say i cracked 100 on a fizzy but chose to rip it up as my gearing,sprint software and morals decided against it
the same day none of my tickets had my name on them but did have my race number which was another mistake the organisers made.
my own view is that top speed run of 130+ was optimistic,sorry Keith if that offends as i know its an amazing scooter thats got some incredible times and development put into it,probably the best out there on the grounds of its all done on a cast iron barrell
Re: Ton up Scooter
Posted: Sat Jun 23, 2012 11:57 am
by Darrell Taylor
heres a 35bhp ts1 dyno graph thats ran thru the drag race software
it shows on the lower grey line resistance kicking in at 92mph which ties in with sprint results regularly achieved on full bodied scoots
if i add a fairing this is the result which would be similar to lowering the bike/running vega legshields etc as many group 6

Re: Ton up Scooter
Posted: Sat Jun 23, 2012 2:02 pm
by mickdale
interesting to have the drag factor on the dyno results - brings it into reality.
i wonder if a five speed box would keep the bhp up at peak at a slightly higher speed thus keeping it above the drag line for another 5 - 6 mph?
would the 92 mph then go to 97 at 35bhp
then in theory another 3 - 4 bhp and the five speed box would be pushing toward 100 mph?
or am i just hoping
Re: Ton up Scooter
Posted: Sat Jun 23, 2012 2:14 pm
by soosh
Darrell Taylor wrote:mickdale wrote:soosh wrote:It's funny when people talk about modern kits being to reach these higher speeds,how fast has Kieth Terry gone on an iron barrel?
wasnt the record breaking white sprinter that did about 130mph on an indian cast iron barrell?
wonder where they would be able to record the speed with enough of a run up
i would go there to watch

probably the best out there on the grounds of its all done on a cast iron barrell
And back then when it got the official record of 12.71 or whatever it was,it probably had no dyno work so I'm the same as you on that one.
Re: Ton up Scooter
Posted: Sat Jun 23, 2012 4:05 pm
by Lamaddict
mickdale wrote:interesting to have the drag factor on the dyno results - brings it into reality.
i wonder if a five speed box would keep the bhp up at peak at a slightly higher speed thus keeping it above the drag line for another 5 - 6 mph?
would the 92 mph then go to 97 at 35bhp
then in theory another 3 - 4 bhp and the five speed box would be pushing toward 100 mph?
or am i just hoping
I'm thinking the same with an 5 speed box and an RB250. I can see the picture but not the pyhsics. I. can imagine it would would be a bit hairy on an RB250 approaching the ton with the revs up and the engine screaming
