turbodiesel without turbo? - Toyota Nation Forum : Toyota Car and Truck Forums

heigo2 · 11-06-2003, 02:34 PM

hey guys...
i have a problem-> a turbodiesel enginge, but the turbo is not working, and buying a new one is very expensive...
is it possible to put a turbodiesel engine to work without the turbo?
any ideas?

Thanks
Heigo

Eqoistig · 11-06-2003, 03:05 PM

It should work, but I'm not sure if eh..ummm "ignition" would come wrong. And there will be huge power loss. Allso diesel feed should be decreased.

arcasmachineracing · 11-06-2003, 04:59 PM

Bah, just go grab the TurboDesiel out of the Jagugar Concept Car!

5Sfte · 11-06-2003, 05:30 PM

Most diesel engines do not have spark plugs. They run very high compression and use the heat of that compression to induce spark. I would think that without the turbo, you would throw your timing waaay off. In theory, it would work because there are diesel engines without turbos or blowers. But you would have to some research to figure out the ECU and timing.

jm_2thow · 11-06-2003, 05:37 PM

sounds like its time to swap in a 3sgte or 3sge motor

and one more thought, diesel blocks are strong as hell
would it be possible to take the diesel block, put a 3sge head on it wiht a standalone fuel system?

5Sfte · 11-06-2003, 05:41 PM

Quote:

Originally posted by jm_2thow
sounds like its time to swap in a 3sgte or 3sge motor

and one more thought, diesel blocks are strong as hell
would it be possible to take the diesel block, put a 3sge head on it wiht a standalone fuel system?

No clue! First thought that comes to mind though is that the 3SGE head is designed for spark plugs and lower compression. The turbodiesel as I said before should have no spark plugs and have much higher compression ratio.

kenratboy · 11-06-2003, 05:57 PM

Holy shit, your from Estonia. They have the internet?

jm_2thow · 11-06-2003, 06:52 PM

he prob has satelite or somethin lol

Wraith · 11-06-2003, 07:57 PM

Quote:

Originally posted by 5Sfte
Most diesel engines do not have spark plugs. They run very high compression and use the heat of that compression to induce spark. I would think that without the turbo, you would throw your timing waaay off. In theory, it would work because there are diesel engines without turbos or blowers. But you would have to some research to figure out the ECU and timing.

I have a question I thought diesels ran a glow plugs instead of spark plugs...

BenG · 11-06-2003, 08:15 PM

Quote:

Originally posted by Wraith
I have a question I thought diesels ran a glow plugs instead of spark plugs...

Glow plugs aren't used to ignite the fuel..they are used to help preheat the charge when the engine is first started. If the air/fuel mix is too cold (in the winter time mostly) it doesn't get quite hot enuf to combust, so glow plugs help that process along

88 LE · 11-06-2003, 09:41 PM

Diesels have glowplugs?

This is off topic, but gas engines for r/c cars use glowplugs. The combustion of the fuel (methanol, oil (synthetic / castor blend), and nitromethane) keeps it lite.

soundlzrd · 11-06-2003, 11:28 PM

I think if you tired to take the turbo off, you would also have issues with not getting enought air intake because you dont have a throttle plate. Your diesel will need alot more than just a head change to switch to gas, nothing is really the same. A diesel has a stronger block, different pistions to take the extra heat of a diesel. Actually, i dont you could make it fit, there are to many differences.

Eqoistig · 11-07-2003, 04:33 AM

I didn't meant sparkplugs when I mentioned ignition.I meant timing, I just couldn't remember the word. Diesel engine works like this. Air goes in, by sucking or with turbo. It compresses air about to 400c, then comes diesel from injectors and heat makes it burn. And so on. There is no need for sparkplugs.

Glowplugs are used to heat air before starting, expecially when it's cold.

I'm not sure if there is ECU in diesel Camry. Diesel engines suck all air they can to the cylinders, and throttele is controlled by how much diesel is injected to the cylinder. You got the point?

Sorry about messy text.

djprefix · 11-08-2003, 01:19 PM

No deisels do not have spark plugs, they have glow plugs. Glow plugs heat the head enough to make the deisel combust. Deisel is only flammable under very high pressure; it's mostly the compression that causes the deisel to ignite, not the glow plugs. As for the engine without a turbo I don't think it will work. The turbo is pivotal in giving the system enough pressure to ignite. Most deisels without turbos will be running in the 16:1 compression range.

Eqoistig · 11-09-2003, 05:02 PM

Compressing causes air to heat up, what happens when HOT air meets sprayed diesel? Explosion!

Heat ignites diesel. Glow plugs heat air, and they are used only couple minutes before starting. Djprefix you were right with that compression thing. Anything being compressed, it will get hot.

Diesel engines can suck whatever amounts of air, power is dependable to amount of diesel injected. More air in cylinder, more diesel there can be injected.

I don't believe turbo is required to work, let's think that engine need some compression to ignite, lets say 16:1. When you are idling, you won't get lots of boost. But when turbo comes in you get boost. So pressure would vary.

Too tired to think anymore.