flame thrower idea

Anyone ever mix gas and propain? i'm currently gas injected with NOS solinoids, been debating mixing the 2. just wondering if anyone else has tried

 

one more time

 

everyone keeps saying they use bbq bottles but surely people aren't using full size propane tanks?? I thought one of those small Coleman propane bottles for camping stoves would work good no?. Anyone got a pic of their tank/bottle setup for the propane??

 

I just wanted to see my truck on the web. No injection here. Just wired an extra coil parallel with the stock one, Ran 2 wires to the plugs in the exhaust. I rev the engine up, pull the choke and flip the switch. when the engine is about to die I push the choke in and feather the throttle to keep it running and it will shoot flames for as long as I want. Probably not the best set up for people who love there engine but mine is getting a rebuild real soon.

 

yes, when the BBQ bottle was mentioned, it was meant Coleman style or any other simliar type. The large white one… yeah, sure it would work too, but damn. That's a lot of fuel to be hauling around.

It doesn't really matter what "container" the propane is it. As long as it's pressurized in there, you're good to go.

To not "wash down your cylinders" every time you want flames, propane is the way to go. To elimanate a lot of the electronics, glow plugs are the way to go.

 

How long will a Coleman tank last? And how long does it take to get the glow plugs hot enough? I'd like to have one on my bike for tailgaters, hell I'd like one on all of my cars for tailgaters. HAHAHAHAHAHAHAHAHA

 

I bet that the plugs would be hot enough after 15 seconds or so...

 

maybe this will work for ya...

 

Thanks What did you do right, and I do wrong??

 

i was wondering if you could 't' off the gas line at the fuel pump, and run a line back to a solinoid valve and a then dump it into the pipes via a jet or something like that. would there be enough pressure from the fuel pump to get the gas back there and still have enough pressure to run the motor ok?

 

I love this place.

 

you could probably get it to work for a bit (considering you had enough pressure).... you would just have to guess how much time until the engine uses up the fuel in the float bowls.

but if you ran the bowls dry you'd have a hell of a time getting the thing started again and that would be pretty embarrasing bc usually when you're shooting flames you're usually around a crowd showing off.

 

anyone that has used a Coleman Style BBQ bottle can tell you, they last a decent time no problem when cooking. At about $2/can at WalMart, that's my ticket.

Glow Plug… check
BBQ bottle… check
nitrous purger… checking…

 

I used a 125# fuel inj. pump.feeding off a fuel block,from the engine pump. Steel brake lines run to the pipes with RPV valves, and speed bleeders tapped to use as check valves. A naturally aspirated sysyem lights them off.Sparky

 

guess how much time until the engine uses up the fuel in the float bowls. - RELAY

why would the engine use up the fuel in the float bowls. if the line is Ted off at the fuel pump,wouldn't gas still get to the carb too?


A naturally aspirated sysyem lights them off. - Sparky

no spark plug, just the heat of the exhaust? maybe its too early and my brain isn't on yet, but please explain...

 

Let me explain. I already have a system that kills the ingnition,and fires spark plugs in the tips. This type of system is called 'naturally aspirated",as the flames are burning just what the engine is blowing out without fireing it in the engine. I have added a system to spray raw fuel just inside the tips. The first system lights it off. So I can have little flames,or bigger flames. at the discrection of a switch powering up the high pressure'sprayer" I havent tried it without killing the ignition yet,but raw fuel dosen't ignite very well ,without some vaporization. Also the exhaust will dilute the oxegen,and not burn very well.

 

bump

 

The heck with propane figure out a way to dump ether starting fluid out the pipes that ought to get exciting in a hurry.

 

Something to consider for your spark plug 'bungs' for the exhaust pipes - if I'm not mistaken, you can use the O2 sensor bung off of later model factory exhaust. I'm pretty sure that many of these are the same threads as most spark plugs. I dunno about the glow plugs though. Its just something to check and see.

Also, supposedly, you can take a 'non-fouler' and drill it out a bit, add your O2 sensor to it, and install the non-fouler back into the exhaust - thereby removing the sensor from the exhaust stream - and fool the computer into thinking the O2 sensor is working on a vehicle with a modified custom exhaust.

I don't know it any of the above is true or acutally works, but I thought I'd share just the same.

 

You guys with the glow plugs.......make sure you use a heavy duty relay to power them, they are basically a big friggin' electrical short to ground when you turn them on.

 

I like it...
Life Threatening, yet informative...
compressed gas, moving vehicle...
Big fun, with BIG BOOM potential...

Pay up that double indemnity!!!...

 

I am currently running a "wash down" kit I bought a year ago before I read a whole lot on flamethrowers and the different types and problems. I want to use the current kit to ignite the flames but not have to kill the engine and run the raw gas through my cylinders. So, I am guessign that all I need would be two solenoid valves, some tubing, a Coleman bottle and some injectors???

How do you determine the size injectors you use, or do you just just flow through the valves?

I am not looking to shoot any competition size flames, just a nice 2 to 3 foot flame.

 

BWAHAHAHAHAHHAA, I love this forum !

 

My A-bone with my setup,
this pic was taken by someone at the HAMB drags last year.
Roach

 

I have been working on hooking up a kit, but having problems getting spark to the plug in the exhaust. The plug wire is about 70 inches to get all the way back, but I have conductivity through the wire. I checked the coil (switched it with the car's coil) and it works. I even took the wire and hooked it to the car's coil and still didn't get spark. I have tired several plugs with no luck. I have even wired the coil directly to the battery with no luck.

Do you guys have any suggestions? Do I have to do something special with the coil?

Appreciate any help.

 

Make sure the plug is grounded.

 

70 inches?

Move the coil(s) to the back,you know,near the sparkplugs.

 

Dammit boys, takes me back to my ill-spent youth in the early '60's.I've been planning a flame system on my current project, and can't wait to use todays technology. I gotta go, I think I'm gettin' a woody from these neat 'pics. Best post in a while....Ole Pork

 

try running a ground cable from the exhaust pipe to the body, your hangers are probably rubber, so your pipes aren't grounded.

For spark I use Model T coils, they're simple, they work great, and they're just plain cool lookin'.

 

Has anybody ever used E85 in a flame thrower? Would the flames be blue?