Allright, all logic tells me that this doesnt work.

Yet every so often I read a few posts about how somone mistakenly poured or purposefully mixed diesel with their gas.

When I first got my car, I heard that you could run 80% diesel mixed with gasoline. I ignored that comment, thinking of it as misinformation.

I've also heard about people mixing 5% diesel with their gas for its lubricating properties.

=> Can anyone confirm or absalutely deny this?

Cuz that would be awesome if I could some how rig this thing to run on some mixture of Bio-diesel

Specially with gas prices the way they are.

Again, I keep thinking that this is not possable, but more and more posts keep coming up about it!

 

Bio-diesel generally works on diesel vehicles, but they are required to have two tanks, one with the bio-chicken juice, the other with dino juice. This way they can run the engine on regular diesel until it's warm enough to function on the bio-diesel (since it has to be a certain temp for it to breakdown/work) I also hear it clogs filters pretty quickly. But as far as converting a gasoline car to bio, I've never heard anything regarding it. It'd be a hell of a neat thing to do (and smell pretty funny) Not to mention cheap... Possibly a 60% french fry to 40% gasoline mix?

 

diesel engines' compression ratio: somewhere around 40:1
Rotary engines' compression: somewhere around 9:1

difference... YES.

maybe im misled... nm

 

You are correct, Diesel engines have very high compression ratios, like 20:1 and still pushing high boost.

 

Maybe - If you used enough MMO to keep it from gumming up the seals.
Oops - there went the savings.


Mazda is betting on Hydrogen.

 

I saw that "futuristic" hydrogen-powered rotary mock-up at Space Center Houston...My first thought was "cool, keeping the rotary alive..." and my second was "damn, that thing is small..."

 

the reasons diesels run such high compresion is that spark wont ignite diesel. A diesel engine doesnt even have spark plugs. They basicly run on detination. The componets used in a diesel engine are also strong as hell. Also diesel fuel is only like 48 octane. I just dont think it would be a good idea.

 

I don't think it would be a good idea either, I'm well aware of how diesel works.

However, as I said before, I've read a lot of people mixing it or putting it in, and wondering if anyone can confirm or deny that, even at a 5% mixture ratio, the diesel will run in our engines?

 

The static CR in a diesel can be anywhere from ~12:1 to 25:1 depending on size and combustion type.

Diesels DO NOT run on detonation, nor do they ever detonate with diesel fuel. Sometimes it can happen with propane fumagation, and it is bad like it is for a otto engine. Diesels are compression ignition devices, where combustion events occur at proper, and timed intervals.

Some say you can run very low octane in a NA rotary, but how low? I've heard the R26B engine in the 787B ran on 87 pump... Not sure of the validity of this.

Feel free to experiment lowering your octane to whatever level your engine timing may support by adding some #2D. Fuel economy will increase, as well as apex seal, and trochoid housing life will increase respectively.

 

I'm somewhat lothe to experiment on my only car, thus, the reason I asked

But thank you for the information

 

So do any of you guys know how a diesel works? I'd be interested to know
Specifically, how do they get such high compression and how do their 2nd and 3rd strokes work?

 

yea i have heard that a n/a can run on 78-80 oct. , i have tried to run mine on mexi gas and it works

 

At the NAIAS in Detroit in the winter I saw an RX-8 that was hydrogen powered. Had a turbo on it too! It was cool how it was set up.

 

It was actually one of the most conveluted and ridiculous things I have ever seen. It was a gasoline-hydrogen-hybrid-electric turbocharged Renesis. What an engineering nightmare. It was like a bunch of Mazda engineers got together, smoked some bad crack, and then designed an engine...

 

LMFAO, thats a good description.

Does anyone know how turbo diesel engines can run such high compression, low octane and yet still run alot of boost? I still can't figure that out..

 

howstuffworks.com, go read.

 

so i guess the question is still in the air... Has anyone ever run their N/A engine with diesel fuel and had sucess doing so? I think we are all interested to see.

Regards,
-Markus

 

The display was nice and shiny though! I liked C5 Corvette better. Or the Vauxhall roadster.

 

i know that the army's 2 1/2ton trucks are multi fuels. they are turbocharged. how would that factor in?

 

48 octane or cetane?


there is a difference


really doubt that it is only 48 octane

 

Thats correct, Diesel doesnt have to have a defined octane from batch to batch. It is mesured in centane.

 

http://www.smartplugs.com/engines/ro...nglerotary.htm

 

Desial's have high compression because they have no ignition system.

 

this is correct. Diesel engines do not have spark plugs. The fuel/air mixture is compressed by the piston until it detonates...thus the reason they have to be so strong.

 

Personally I believe its impossible unless you built the engine from the ground up. EVERYTHING would have to be stronger.