MTT Y2K for less than 2K?

[Whosthedaddy]

Its funny how a seed is set and that it nags and nags and nags just like the wife.

Its both useful and yet scary at what you can google and find out on the net. The ability to build a turbine jet engine seems to be one of these ideas.

A pulse jet engine seems to be the most straight forward and simplest forms to build if not the most dangerous looking at its simplicity, whereas utilising a cars turbo and some metal piping, a bodged flame tube and afterburners means that you have a ready to go turbine engine? And, by using a cars turbo it would be small enough to strap to a bike.

As mentioned things always look simple and the complexity is in the small print.

Problems that I can see would be:

starting the bike without the use of a wind source such as a vacuum cleaner or leaf blower
fuelling, most of the vids use propane but could a conventional fossil fuel be used or even diesel?
acceleration and more importantly deceleration, would brakes suffice and with no engine braking it could be interesting if the lights suddenly change
gearing, would a gearbox even be present on a bike? I have seen small electric motors on the rear wheel to allow moving the bike around easier rather than firing the beast up to do a U turn, but other than this why would there be a chain to the rear wheel?
insurance.
safety*

What say you, a homemade turbine jet engine for a bike?




* Jay Leno stated that he melted a cars bumper when in traffic as the car was too close to the exhausts / after burners.

Below is a photoshopped mock up of the yanks YSR project. they have yet to complete the project but from the pics it looks much better than the idea initially drawn up.
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Current : MSX 125 Past : CBR 900RR Monkeybike : c50 LAC : ZXR750 H2 : FZR600 : ZX7R P3 : YW100 : TRX850: Trophy 900 T309 : GSXR 600 L0: Monkeybike : XJ6S Whosthedaddy

[Itchy]

Seems kind of simple (relatively compared to say my NTV which seems complex due to the shaft drive/single swinger type thing),

Ripping apart my CBR it seems really simple thinking about it, engine strapped to a frame which turns moving power to a chain....

comparatively....

but surely a jet engine would just be faced sideways say the air intake on the right , and a big heat proof sprocket on the left with a heat proof scotoiler / scot chain cooler on the left which linked to the rear .

This would mean that you would not have to make a complex rotation of the power 90 degrees as in Shaft drives (although shaft drive on the NTV is like 90 degrees at the gear box then another 90 degrees at the wheel). Though there would be sideways thrust of course lest it was ducted and there would need to be tons of heat sheilding.

With all the other ancilaries kept on like brakes/steering etc,
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Spain 2008France 2007Big one 2009 We all die. The goal isn't to live forever, the goal is to create something that will. In the end, your life will flash before your eyes. Make sure it is worth watching.

[G]

I believe the MTT is driven by the wheels. Think the MTT ones uses a helicopter jet engine that's obviously designed to give a rotational output.

Obviously I don't think you could really do this in the same manner with a pulse-jet engine.

I've seen people who have shoehorned some moderately chunky jet engines into the back of cars, forget the details now though - I'm sure google would have further answers .

You'd need a damn big jet engine to give you good acceleration I suspect.
If you haven't seen it, try and find a copy of the Scrapheap challenge where they had jet engined cars.

[Whosthedaddy]

[MarJay]

Search for jet MR2 and you'll find some stuff. Jets don't have good acceleration until they are doing some speed already. Think of turbo lag on a much larger scale.

Also as G said the Y2K is wheel driven by a turboshaft from a helicopter, not a turbojet or a turbofan.

There are no rotating parts in a pulse jet, and precious few in a turbo based home built turbojet. So in short it will either burn your arse and not work, or not work.
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British beauty: Triumph Street Triple R; Loony stroker: KR1S; Track fun: GSXR750 L1; Commuter Missile: GSX-S1000F
Remember kids, bikes aren't like lego. You can't easily take a part from one bike and then fit it to another.