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Well I wish I could pedal that fast. I bought a bike to cycle with my son this summer and recently I had this crazy idea to use my bike as a test bench for my turbine engine. a bit of fiddling and two weeks later here it is.
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I have some video footage of it which ill post as soon as I have uploaded it.
Possibly the best first post ever.
Welcome to STW!
😯 think i'd be wanting some 203mm dics brakes
I want to see a video (if you survive)
You art 'hot rod' and i claim my £5.
What could go wrong. Please please film it.
Top first post, and cool toy. But not quite batshit mental enough...
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Lol those videos fill me with confidence 🙂
A bit more about the bike and the engine. The power output of the engine is about 10 kw. But that power pushes against the air and isn't linked to the wheels, and this makes the acceleration different. The thrust from this engine doesn't push you back into your seat and if it did the engine would be much larger and your top speed would be a couple hundred miles an hour.
The power delivery is like a straight line on a graph. A bit like pulling off in your car in fourth gear and watching the speed rise at a constant rate, and still end up going quite fast. The cost of adding an engine like this actually less than most think, and costs alot less than most high end bikes.
I have only tested the bike on rough wet grass, and with the narrow wheels the resistance was very high. in the video I go from 0 to around 25m/h in roughly 120 meters, the bike was still accelerating but was starting to slide, It felt like I was in mud so didnt push it any further. As soon as this crappy weather clears up ill give it a go on a much smoother surface. The video is quite short ill get better footage next time. Oh, and the sound is AMAZING 8)
As above, great post!
We need more stuff like that on here 🙂
10KW? Gonna be fun 😀
So how do you know/what makes you think, that it goes 60mph?
Just an '[i]educated[/i]' guess, here is a guy who got around 50mph on his [i]Mountain[/i] bike, using an engine that has nearly 50% less power than mine :P. And my bike has thinner road wheels than this mountain bike with less road resistance so the top speed might be even faster than this, if i have the gonads to push it :?. Any one have a spare set of leathers handy?
The other dude might have half the power but he did bother putting a helmet on! Best of British luck to you 😀
Please make sure your next of kin knows where to post the video.
Great idea though. 🙂
What's the engine for originally?
Be brilliant on a tadpole trike.
60mph with a couple of litres of jet fuel between your legs. What could possibly go wrong.
A bit more about the bike and the engine. The power output of the engine is about 10 kw. But that power pushes against the air and isn't linked to the wheels, and this makes the acceleration different. The thrust from this engine doesn't push you back into your seat and if it did the engine would be much larger and your top speed would be a couple hundred miles an hour.
What if you tried it out on a conveyor belt that goes backwards at the same speed the wheel go forwards?
Love this thread, nowt like shed engineering.
Wish I had the time to do stuff like this.
I always thought the batman vehicle line-up was just missing [i]something[/i].
Possibly the best first post ever.
Welcome to STW!
Oh, and that!
Forget e bikes!! Sounds awesome and a great post. Love it
This is amazing!
Will the turbine run on LPG?
In which case you can [url= http://www.asciimation.co.nz/beer/ ]chill your beer at the same time[/url] (It was probably STW that led me to that in the first place).
That dude was rapid and I think you'll probably end up a fair bit quicker going if what you've said.
Good luck sir and god speed ?
I hope we won't be seeing you on LiveLeak anytime soon? 😆
Well I have a trike and it sports a sturdy rack :-). Where do I sign? Sorry, no leathers.
Great stuff.
Tick!
I'm happy that all the responses are positive, was a bit worried that I was going to get slated by the "[i]bikes aren't meant to create pollution[/i]" junkies
in response to some posts:
Gaidong: I will definitely wear a helmet next time I have a go on a harder surface, and hopefully some leathers. It will be safe up to speeds the bike can handle, which is probably faster than my gonads will let me.
Epicyclo: The engine is used for a drones and generators. I'm sure a tadpole trike will be very quick with one of these.
Ps44: This particular engine runs on normal heating oil mixed with bearing lubricant. I have a high impact fuel tank on the bike which is placed within the A frame, and I feel that in this configuration its probably safer than a normal motor bike with there aluminium tank on the top of motor bike frame. I can also tweak the engine to run on diesel, so in case of a ruptured tank the leaked fuel shouldn't ignite .
Tired: Even my wife thinks its cool, she says I should sell these as a bolt on package for others. Will think about it if there is enough interest.
good job you didn't fit an electric motor. you would have been scorned...
[quote=jetbike ]Just an 'educated' guess, here is a guy who got around 50mph on his Mountain bike, using an engine that has nearly 50% less power than mine :P. And my bike has thinner road wheels than this mountain bike with less road resistance
I doubt the wheels and tyres will make any significant difference - at that speed it's almost all about air resistance, so less flappy clothing will help, or more of a tuck if you dare. 73% more power required for 60 rather than 50 - though I presume with jet engines (as you kind of suggest) that the thrust generated is fairly independent of speed, in which case 44% more thrust required.
Have you any more details of your engine - is it based on plans from somewhere, or all your own design (not that I think I'm ever likely to build one, but interested in the idea)?
Good to see that the valves and logos line up.
Well done. Have a gold star.
I'm taking that star straight back off him for the wheel reflectors.
Seriously I'd get rid of those if you're planning on going anywhere near 50mph - they won't do anything for your wheel balancing and you'll get vibration.
[quote=jetbike]my bike has thinner road wheels than this mountain bike with less road resistance
If I was going to do this craziness, I'd be running the heaviest, thickest, strongest bicycle wheels and tyres I could find. And thick inner tubes with slime in.
You are mental 🙂
I'm taking that star straight back off him for the wheel reflectors.
Safety NEVER takes a day off.
[quote=CaptainFlashheart ]Safety NEVER takes a day off.
Which is why I'm telling him to take the wheel reflectors off 😕
They have almost zero safety benefit in any case.
What if someone wearing a helmet light is approaching from the side on a rocket powered skateboard, eh? That side visibility could be a life saver then, couldn't it?
In which case he just needs to go a bit faster.
Flip your stem and that will give you 5mph probably
Do all jet bikes have to be Giants?
I applaud your bat shit craziness!!
Do all jet bikes have to be Giants?
They might be....
Ooh, well played, CFH - I see what you did there...
Best thread evaaaaaaaaaaaaa! I think I'd want Moar aeroz/brakes though!!
Hmmm. So what's the difference betwwen a turbine engine and a jet engine?
Need more information as i want a jet engine, i 'd be happy enough to fire it up and just just listen to that shut down whine.
What's the rough estimate for such an engine/electronic control gear?
*goes to check British ENDURO Series rules*
I love these kind of experiments 🙂
If you're in North England or Scotland I'd gladly test it for top speed if you're apprehensive or just simply want to live longer.
Brilliant!
Could you bolt one to the bottom of my Volvo XC90 please? Cash waiting.
Great bit of bodging going off there 🙂 ....Trouble is that there's virtually nowhere you can use it safely and legally.....