www.pulse-jets.com

If i might be so bold as to suggest an improvement , or maybe help someone who is going to attempt this design looks like mig weld , correct me if im wrong , migging that thin walled brake pipe to thin steel is difficult , tig is ideal , but few muffler shops have tig what i suggest is mig the brake...

Hey irvine j dude that would be great if you could post a short vid of your dd running at night so i believe it to be true that the objective is to inject fuel and entrained air , the better mixed and turbulent the better as for the right post , well true, this has drifted a little from the original...

Hello Hagent thanks for the input , theres a lot of information there in them threads , i skimmed through some of it last night I really do believe that a coax design could give superior results to a conventional design , but and its a big BUT, i also believe the tuning of such a design would be ver...

Ok heres a vid these are kinda modified double d , a bit too much spread, but lots of entrained air, hell looking at the vid, i ask myself is that really what i need ? more confused than ever :? anyone like to comment ? thats the neighbours dog barking at the end , they hate me, so does the dog , es...

Hey jutte that really is great , im going to go to the maintenance shop and see if they will give me some old filters your comment about the gas coming out of the other side really excited me , im more convinced than ever that we need a circular tube manifold, This may be no more than a piece of cop...

Hey mr irvine thanks for the help correct on two counts I cut the inlets down about 3/4 inch and fitted two thin sliding flared tubes inside , that pointed me in the right direction , power has gone up , last (very short) run, no sliding inserts, deep double d, vapour fueling @ 80 psi static , i got...

Just a couple of photos unfortunately still cant get any serious thrust out of this motor tried rosco jectors , double d , and straight pipes , there is indeed a sweet spot about 1 1/2 inchs into the inlets running liquid propane into the jacket i can get about 3 lbs of thrust opening the flow contr...

Hi rob looked at your website , great bikes Do the sparkplug thing , It helps a lot , at times the pulsejet is just about starting to run, popping and banging and the spark makes all the difference to get it to transition. you have probably got most of the things you need lying around 1, spark plugs...

Hey someone parked a backhoe in your back yard

hell i couldnt get a backhoe in my backyard if i wanted to

great vid

Hey great idea , although they are very thin steel and wont last long, your idea provoked another idea almost all vehicles, prior to the spin on filters had cartridge filters , these were mounted in cans that are of heavier gauge steel and some are very pulse jet cc shaped and even have the hole for...

Well that got this forum working really well , lots of input ,some positive, some negative and some really brilliant ideas. Guess im just going to have to build something along these lines and see what happens , will keep you all informed, be it a failure or a success (but dont hold your breath) tha...

Heres an idea that keeps coming back to me ,
until someone tells me why it wont work it will keep bugging me.

I am not sure theres much to be gained , maybe more symetrical combustion?

Thinking along the lines of a 3Lb size

OK guys rip it to pieces and put me out of my misery !

Eric , very impressive your comments on flares called attention to me , my TJ inlets are made from hydraulic tube with the JIC type conical end, 37 degrees i believe just a flat cone not at all rounded Could be i have some grinding to do ! thanks for the hint But what really provoked me to reply was...

Great job Vern, that lady is going to howl ! Those 1/4 tubes do look kinda skinny dont they? I am having similar problems with gas cylinders , but for other reasons. There is another type of gas cylinder available, the ones they use on fork lift trucks (hysters) , they are designed for vapor or liqu...

Hey Jutte
I just GOT TO have one of those

DIMENSIONS PLEASE!