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Ar well i stand corrected Joe, any other specs on that engine other then the pics? Quite an oddball jet you have there Joe :P, let us know how the three injectors go and how you did it. I drew 4 injectors in the picture above and I'll attach how i was planning to do it. Just a brass compression fitt...

G'day Steve, one of my first posts here went much the same as yours is with the capped design sparking my interest for its elegant simplicity. I called in the "coaxial comet" for obvious reasons, a glowing red ball with annular flames out the rear sure sounded sweet. You should be able to find that ...

Hi Liv, Interesting to see so many people I remember from many years back still here posting. Yes granted I should have at least tried to run a stock spec lockwood without modifications, I was too naively confident as the time. A threaded socket and plug, as well as better injector (as is its a stee...

Nah theres no restriction in the fuel flow, the stainless socket with brass elbow is the injector. The other bit is a blower running through a check valve for starting air.

I never got it to run before modifying it to something else which started easier and didnt take so much freekin fuel (thanx to Eric). Can you elaborate more on that Rossco? I too built a lockwood to plans then lost all interest when it didn't start up. Did you do a modification of scavenge it for p...

While its correct that thermite type mixtures will never be high performance, they can actually work. MnO2/Al is a known propellant as the reaction is hot enough to boil manganese. PbO2/Al is hot enough to boil the lead and some Al2O3, but may be too explosive. HgO/Al would obviously form gasseous m...

Perhaps a speaker and capacitor bank will be better for your show. Should be quite a versatile option allowing precise timing and effects. "By discharging capacitors of varying sizes and voltages (0- 12V, 10- 1000 microfarad) through the speaker, different travelling speeds of the rings could be ach...

OK, found some graphite in the cupboard and answered my own question. Based on two tests it seems to fire just as readily as the nichrome igniters. Perhaps they are a bit more fragile but are easier and quicker to make. Below is the stripped wires, dipped in graphite/acetone and then BP/NC/Al/aceton...

Ray, Im interested in the graphite igniters, but am wondering why you would place the battery so close to the engine? For safety safe I always connect the battery well away from anything thats about to fire up. Does the graphite need more power then can be put through ~50m of cable? I cant see if yo...

Im no authority on this but isnt the area of the valve that flexes much too wide? the petal shape taper down which makes them much more "flippy". try cutting your valve springs into: ____________ | | | | | | | | | | ___ ___ | | | O | ------- ^ yeh.. ok, that never worked. I expect youve already thou...

marksteamnz wrote:There is an interesting thread on the DIY Gas Turbines Group re a Lockwood propelled Kart. 80 mph so far using liquid fuel fed by two 100psi fuel injection pumps.
http://groups.yahoo.com/group/DIYGasTurbines/

Was a photo ever posted?, cant find it.

.... get the gun.

I read this and thought, those fella's at pulse-jets.com may like this.



Sounds like valveless pulsed combustion to me!

PS, Axt where in OZ are you? (of forum if neccasary) Wagga, for the most part. Try the intake idea! Ive been thinking about the easiest way of doing it. I think you could gradually do it by using the small 15mm stainless elbows that you can get. Drill a hole through the intake, cut a length off the...

Rossco, couldnt it be somewhat improved if one was to add small intakes/exhausts into the main intake. My thoughts - 1. It would allow air to quickly fill the chamber. 2. They will restrict blast out the front, as its being shot back down through it. 3. blasting gas down the intake will help draw in...