What kind of fuel are you using?

[cadillackid]

the only reason I could think of that WMO may not work in an electronic engine is that you have no easy way to change the metering of the fuel going in.. with mechanical you can adjust your fuel screws / plate for more or less fuel depending on how you manufacture your fuel.. the electronic systems dont have much support for tuning.. at least not at the Medium duty level like our busses.. (cummins 5.9 maybe?)..

if your manufactured fuel is very close in BTU output and viscosity to diesel when its going into the system then id see no reason why it cant run in a computerized diesel..

Most of the diesels we have here on the forum have no feedback.. they are simply a pre-programmed curve based on temperatures / speed / engine load.. unlike a gasoline engine where an O2 sensor and knock sensor are often employed to help determine how well the engine is running and adjust fueling accordingly on the fly.. I think somewhere ive seen mention of knock sensors in diesels for fuel timing on-the-fly but cant remember where I read it..

in the HEUI engine world (DT-466E, Cat-3126, T444E, VT365) to name a few there was some work in which the ICP sensor value was manufactured to run up the HPOP pressure and fuel heavier.. as well as manufactured Crank position sensor to control fuel timing.. I wasnt involved in that project and I could see several areas where it went wrong... ive done alot of ECM hacking over the years on Gas cars.. havent done alot yet on diesel busses.. im just getting started by altering J1939 comms between modules.....
-Christopher

 

[Tedd-SKO]

the only reason I could think of that WMO may not work in an electronic engine is that you have no easy way to change the metering of the fuel going in.. with mechanical you can adjust your fuel screws / plate for more or less fuel depending on how you manufacture your fuel.. the electronic systems dont have much support for tuning.. at least not at the Medium duty level like our busses.. (cummins 5.9 maybe?)..

if your manufactured fuel is very close in BTU output and viscosity to diesel when its going into the system then id see no reason why it cant run in a computerized diesel..

.....
-Christopher

plus 1.

I always add the disclaimer for about 2 reasons. My degree is in Auto related subjects and I have zero experience with heavy duty aps. But I do know that old Bosch mechanical injector pump pretty well. Also, back in the day I grafted some GM TBI stuff on MGBs, among other crazy stuff.

Also, the cost of efi injectors in current applications is REAL high. Given the way conversations go on the internet, I have no desire to get involved in of them "BUT YOU SAID" ... when I have no idea what the condition of the engine was before something I gave an opinion on was tried.

That manufacturers are kinda picky about warranties, I was shocked that the two Caterpillar manuals listed in the bibliography of the thread I shared do give WMO creds as fuel.

I don't internet much anymore. Just stuck my head up to learn a bit about that centrifuge.

 

[cadillackid]

yeah I tend to always tell people that im sharing *MY* results in *MY* application.. ie just like my transmission swap and the electromics related... ive been telling people all along.. hey this worked for me.. *BUT* it may not for you...

people often look at someone's build Log and think of it as a manual and not just ideas for how to design their own build or as one person;s experiences to view and get their own juices flowing..

-Christopher

 

[Mr4btTahoe]

The big issue with the newer engines and WMO is the fuel opacity sensor that most of them have. That along with picky injection systems (that are expensive to work on) and such. I can replace the ENTIRE fuel system including injection pump and injectors in my old IDI for the cost of 4 injectors in a 6.0 powerstroke or 6.6 dmax.

As far as tuning... There are several companies out that put out waste oil tunes for 7.3 powerstrokes. The only thing I tinker with as far as tuning goes anyways is timing. Now as far as getting tuned on a medium duty setup... more then likely would have to find someone willing to write a custom tune which isn't too hard these days.

On the "electronic" 6.5... the only electronic control as far as I know is of timing. Everything else is still mechanical. I know some of the older 6.2s and 6.5s dont mind waste oil at all.

 

[cadillackid]

Most of our busses aren't the Ford variants of power strokes..
on a HEUI engine, timingbabd amount of fuel are controllable.

 

[Mr4btTahoe]

Most of our busses aren't the Ford variants of power strokes..
on a HEUI engine, timingbabd amount of fuel are controllable.

Right... I was replying to your electronic engine comments. There is tuning available or ways around it... but I personally wouldn't want to run WMO in something that isn't mechanical. Components are too costly to replace if something goes wrong.

As far as tuning... we don't mess with fuel rates as we run on diesel and wmo.. 2 independent systems. Don't want to have to change things every time you switch fuels. From my experience, there isn't much "tuning", if any, required. It all just depends on if the fuel system will handle the oil or not. A slight static timing bump can help (oil has more potential energy but burns slower... advancing the timing helps with that).. but isn't a must.

 

[Epomethius]

When people are talking “biodiesel”, is that like some homegrown moonshine or what the BP, a major fuel provider like Exxon or shell, offers?

 

[Smokey's pipe dream]

not advised !

im running hom cough hea cough fuel and touch propane just for a little oomph!!! getting up those hills :biggrin:

 

[JoeNesquik]

When people are talking “biodiesel”, is that like some homegrown moonshine or what the BP, a major fuel provider like Exxon or shell, offers?

From my experience, biodiesel is fry oil, veggie oil. It’s not really a concoction, nor can you find it at very many gas stations. People pick it up from restaurants and use it as fuel, after filtration.

 

[Kubla]

Biodiesel is processed vegetable oil, it is not just filtered, straight vegetable oil has to be heated to run in modern engines which is why the conversions have 2 tanks, one for the oil with a heater loop which engine coolant runs through band one for diesel which you run on until the engine is hot before switching to the vegetable oil, a and don't forget to switch back before shutdown or you will have problems starting up the next day

 

[JoeNesquik]

Biodiesel is processed vegetable oil, it is not just filtered, straight vegetable oil has to be heated to run in modern engines which is why the conversions have 2 tanks, one for the oil with a heater loop which engine coolant runs through band one for diesel which you run on until the engine is hot before switching to the vegetable oil, a and don't forget to switch back before shutdown or you will have problems starting up the next day

Sorry. I’m just trying to help people get a grasp.

 

[Ricksy]

I use CNG, Since CNG is one of the cleanest natural gas when compared to other fuels that produce higher carbon gases.

 

[Jolly Roger bus 223]

my 8.2 n/a is under powered and almost all of the mechanics to work on it or retired and didnt pass there knowledge on.
but i run diesel of course but i have bought and ran straight veggie oil out of gallon bottles because i was in a bind with no problems and i helped a friend that ran his chevy suburban and his wifes mercedes all off of fish fry oil.
they had the entire process down but had issues in the winter and in my work travels i was able to salvage a substantial propane fired boiler to help them heat there setup.
alot more work and time and material than just saying add a boiler.
he already had a fuel farm idea set up i just helped heat it in the winter

 

[Kubla]

CNG is not viable in Cincinnati since there are nonnplaces in the city that sell it, you would need your own compressor to fuel your vehicle

 

[PtJudeRI]

Diesel. Slowly getting it all over to diesel. Have a f350 with a 7.3, excursion with 6.0, Deere with a diesel.

My next bus/shuttle purchase will be diesel. I know my way around the engines better than gas, torque is better, and longevity can't be beat.