URIKA i figured it out.

first of IM WRONG carborated or throttle bodied diesel wouldnt work
second thanks for getting the gears to turn guys.

this is gonna be kinda long but im pretty sure i figured out why it wont work.

first problem- if it were carborated at an idle it would be scavaging like crazy (flooding itself if it were gas) but because it a diesel it would still be chugging away blowing LOTS of black smoke. when the throttle is then cracked it would go nuts because it would have so much unburned fuel in the intake manifold and now excess air to light the fire. thus a runnaway.

second problem- if said diesel fuel explodes at say 14 to 1 compression and you have a 20 to 1 engine. ( numbers flying out of the old ars here) then the abundance of fuel would ignite before the piston had reached DTC and would VIOLENTLY knock. if it could even overcome the blast which i kinda doubt.

a throttle body could solve the runaway problem but WOULD NOT solve the pre ignition catastrophy. a throttle body WOULD work IF the compression ratio was lowered to the exact number in which diesel ignites, but what would be the point and changes in altitude and temp ect would affect this greatly.

i think???

 

if peak compression was lowered to ignition of diesel fuel theoreticly this might idle but load up still or flood, BUT it would be almost impossible to start. plus any wear on the engine would make it useless , but like you said any change in altitude, temp would make this thing one cranky pos. it would have to be exact right temp, humidity, altitude, air density etc for it to work.

p

 

I guess if you tweaked every single variable you could get one to run on a carb until the slightest thing changed. It's just a bad idea it would be like putting a carb on a turbine jet engine I guess you could get it to work but it wouldn't be worth a crap.

 

i dont think one would run on a carb because the engines vacume would pull excess fuel from the bowl. i believe a trottle body --could-- work because the engine couldnt load up. but would be worthless, because of the lack of compression and fluxuating everythings

 

Wow didn't expect this much info on the subject!

Thanks to all who replied! Going to show this thread to the guy and see what kind of crazy idea he has now, !!

 

Nah. Let him do it. If it does work ( or run at all ) he should get some kinda diesel engineering award. I know I wouldn't want to be the one tryin to jet that thing

 

Lol, I showed him the thread but he's a crazy guy and says "I'll figure out a way to make it work". I dunno where he's getting this stuff from cause his grades in class are horrible most of the time with a rare decent one !!

 

Let him try, maybe he is on to the next big diesel mod hahaha I have a holley 950 sitting in my shed hmmmm gets me thinking


Still wont work too many variables not enough controll in a carb setup

Sent from my DROIDX

 

It's all not a good idea. Someone coming up with this idea its no wonder hes doing bad in the class. Take a highly precise fuel injection system off of a truck and put a carb on it doesn't sound like a great idea to me.

 

Plus I don't think your just going to find any old gas intake and have it match the ports of a 7.3. You would have to cross referance a gas motor tha has a pretty close deck height. And even then the ports don't have to be dead nuts but should be close. The chances of that are slim and none!