Welcome, Guest: Register On Nairaland / LOGIN! / Trending / Recent / New
Stats: 3,155,546 members, 7,827,045 topics. Date: Tuesday, 14 May 2024 at 05:36 AM

Running A Car On Gasoline And Propane At The Same Time To Improve MPG - Car Talk - Nairaland

Nairaland Forum / Nairaland / General / Car Talk / Running A Car On Gasoline And Propane At The Same Time To Improve MPG (2015 Views)

What Is Your Car's MPG And How Are You Coping With This Fuel Price? / Man Filmed Driving A Self-made Car On The Streets Of Lagos (photos) / 2 Men Towing Car On Cart Truck (Video + Photos) (2) (3) (4)

(1) (Reply) (Go Down)

Running A Car On Gasoline And Propane At The Same Time To Improve MPG by gonkin(m): 3:47pm On Aug 22, 2020
So I have this 92 landcruiser. Its a really nice truck.
Its a real juggernaut with impressive acceleration for its size. Its rated 11/12 mpgs but I've tweaked it so much I get 15 to 16mpgs. When fuel was still 143/l 8k worth of fuel takes me 388km which is quite impressive for an I6. First I adjust the fuel pressure regulator all the way and advanced the timing. I could really advance the timing to do 0 to 60 in 9 seconds and oem states 13sec but when I do I get some pinging so had to retard it. People keep judging the truck by its size asking if it doesn't consume fuel. I told em not as u expect.

So some weeks back I decided to take out the EGR valve cuz it was kind of stuck open and the temp jumps whenever I do some hard acceleration. So i took it out and it has been OK ever since. Acceleration and mpg got up to 17 which is cool with the EGR out.

I did an airfilter element wash and let the element dry under the sun. After that I fixed it back into the housing and started up my truck. Upon movement the acceleration was so super im sure I could do 0 to 60 in 7 seconds. Quite quick even I couldn't believe. Out of curiosity Turned off my truck and turn it back on. Boost was gone. I was curious. Then I did a lil research. I came across a channel THE VAPOUR KID on you tube, did a prototype setup and I got really good mpgs and with aggressive accelerations + ac. Though my set up was temporary. When all fuel has been vapourized truck became normal. I repeated this few times with great mpg gains.

My main point

Cuz im curious. Can I introduce Lpg in very little quantity to one of the vacuum lines and engine still running of fuel? Cuz the reason for my mpg gain is my vehicle's ECU thinks it's running rich and cuts off the pulses to the injectors. Thereby saving a lot of fuel. So im just wondering if fuel and propane could work in the same combustion chamber.

Note fuel injectors spray fuel as gas and propane has a better air fuel ratio as its already in gas state.

I've already thought about the regulator and the electric shutoff valve and flash back arrester.

Whats your opinion. Let me know. Cuz a 3kg Lpg would carry me for months and I believe if the mix is suitable I could push my mpgs up to 22/24. The fuel vapour worked superb



https://www.youtube.com/watch?v=gEnSWVz4o04


https://www.youtube.com/watch?v=Q5TGDNVSdQM


https://www.youtube.com/watch?v=JWqMZ8-EHSo

2 Likes

Re: Running A Car On Gasoline And Propane At The Same Time To Improve MPG by gonkin(m): 3:48pm On Aug 22, 2020
Fuel vapour line from intake. Also the blocked off line of the EGR and egr valve

And first trial with a container having just 0.4 liters of fuel. No safety device (back flash and one way valve) installed

Re: Running A Car On Gasoline And Propane At The Same Time To Improve MPG by gonkin(m): 3:52pm On Aug 22, 2020
Fuel trapped as vapour in a water filler container. I pass air from one end and lit the other from where vapour is produced

So my plan is 70% fuel, 30% propane and as u know propane has a clean burn. Propane and air comes in through the air intake manifold then the injectors spray the fuel.

Accord to Craig the rich mixture will trick the ecu to thinking its spraying in too much fuel there but reducing the fuel and the engine will still have its normal or even better power. Imagine 24mpgs or something close to a corolla on a 4.0l truck.

1 Like

Re: Running A Car On Gasoline And Propane At The Same Time To Improve MPG by gonkin(m): 3:55pm On Aug 22, 2020
First test drive and results. Over 12 miles cover with hard acceleration and ac on full blast. Harsh driving

1 Like

Re: Running A Car On Gasoline And Propane At The Same Time To Improve MPG by Drversatile: 3:59pm On Aug 22, 2020
I need more explanation, did you change from PMS to LPG, I want to increase my MPG on my Benz also, any help. E200
Re: Running A Car On Gasoline And Propane At The Same Time To Improve MPG by Drversatile: 4:01pm On Aug 22, 2020
gonkin:
First test drive and results. Over 12 miles cover with hard acceleration and ac on full blast. Harsh driving
What's the fuel tank capacity?
Re: Running A Car On Gasoline And Propane At The Same Time To Improve MPG by gonkin(m): 4:04pm On Aug 22, 2020
Drversatile:
I need more explanation, did you change from PMS to LPG, I want to increase my MPG on my Benz also, any help. E200


Fuel has vapour and the vapour is very combustible. So i introduced the vapour into the engine via vacuum line that leads to the air intake manifold.

What I want to know is if I could use cooking gas as a substitute for the fuel vapour into the vacuum line? Cuz im actually using it in very little quantity. Mind u my truck is 4.0l I6 fuel injected 3-fe engine.

Check yours for codes. From whet I know O2 sensor control how the ecu regulates the air/ratio probably start from there

1 Like

Re: Running A Car On Gasoline And Propane At The Same Time To Improve MPG by gonkin(m): 4:07pm On Aug 22, 2020
Drversatile:
What's the fuel tank capacity?
95liters sir. No auxiliary tank
Re: Running A Car On Gasoline And Propane At The Same Time To Improve MPG by dawnomike(m): 4:41pm On Aug 22, 2020
gonkin:
Fuel vapour line from intake. Also the blocked off line of the EGR and egr valve

And first trial with a container having just 0.4 liters of fuel. No safety device (back flash and one way valve) installed
The first thing I looked out for in your post is to be sure you are a Nigerian and not that you copied and pasted someone's car mod procedure and happy you did not disappoint.

You are doing a good job with the tweaks... I will call you soon

2 Likes

Re: Running A Car On Gasoline And Propane At The Same Time To Improve MPG by gonkin(m): 5:47pm On Aug 22, 2020
dawnomike:
The first thing I looked out for in your post is to be sure you are a Nigerian and not that you copied and pasted someone's car mod procedure and happy you did not disappoint.

You are doing a good job with the tweaks... I will call you soon

Lol. Trust me. Im nigerian though my hands are always itching towards knowledge and evolution
Re: Running A Car On Gasoline And Propane At The Same Time To Improve MPG by eherbal(m): 6:40pm On Aug 22, 2020
can the progress you've made so far be achieved on a '93 honda cc7 aka honda bullet?
Re: Running A Car On Gasoline And Propane At The Same Time To Improve MPG by gonkin(m): 6:51pm On Aug 22, 2020
eherbal:
can the progress you've made so far be achieved on a '93 honda cc7 aka honda bullet?

I used a Honda odyssey and i believe it has an identical engine with the 93 Honda accord. Though the 93 already has good mpg. Unless u wanna push it to 40mpg. Besides my odyssey then had a cone air filter element and i deleted a vacuum hose from the air intake manifold. Man that honda was so fast it. I once did a burn out that later damaged my cv joint.

It will work 100%

I removed one of the hoses so it sucks extra air. That car has speed

Re: Running A Car On Gasoline And Propane At The Same Time To Improve MPG by gonkin(m): 6:58pm On Aug 22, 2020
I found this
Seem useful


Using Mix of Gasoline and Liquefied Petroleum Gas for Lower Emissions and Greater Torque 2013-01-1151

The paper considers the problem of how to improve the economic efficiency of gasoline-powered internal combustion (IC) engines and at the same time increase their eco-friendliness and reduce emissions. Current industry thinking is that the use of alternative fuels (e.g. liquefied petroleum gas (LPG), which is widely used) helps reduce emissions of harmful substances in exhaust gases, but causes a reduction in engine power and torque. One of the ways to fix this problem is to add gasoline to the LPG, while current approaches to this problem improve either ecological performance or power readings of engines. It is assumed that one can change the fuel burning velocity and the amount of harmful substances in exhaust gases by adding gasoline to LPG and varying their percentage fuel mixture (called binary), thus providing higher ecological and operating performance of IC engines. Based on the above assumption a new engine control method has been developed, which improves gasoline IC engine performance and reduces emissions by adjusting the binary fuel composition and controlling the ignition advance angle. The paper presents the results of the experiments set up and examines the efficiency of the method developed.

https://www.sae.org/publications/technical-papers/content/2013-01-1151/

Re: Running A Car On Gasoline And Propane At The Same Time To Improve MPG by Drversatile: 7:57pm On Aug 22, 2020
gonkin:


95liters sir. No auxiliary tank
Okay. I wanted to use it to judge the fuel consumption on the fuel gauge you posted.
Re: Running A Car On Gasoline And Propane At The Same Time To Improve MPG by Drversatile: 8:19pm On Aug 22, 2020
gonkin:



Fuel has vapour and the vapour is very combustible. So i introduced the vapour into the engine via vacuum line that leads to the air intake manifold.

What I want to know is if I could use cooking gas as a substitute for the fuel vapour into the vacuum line? Cuz im actually using it in very little quantity. Mind u my truck is 4.0l I6 fuel injected 3-fe engine.

Check yours for codes. From whet I know O2 sensor control how the ecu regulates the air/ratio probably start from there
Can you perform this tweak on the Benz for me? Your location or you give me step by step instructions and materials to have ready.
Re: Running A Car On Gasoline And Propane At The Same Time To Improve MPG by gonkin(m): 8:49pm On Aug 22, 2020
Drversatile:

Can you perform this tweak on the Benz for me? Your location or you give me step by step instructions and materials to have ready.

grin
No way, benz engine is rocket science. Just get it scanned. Then you'll know where to begin
Re: Running A Car On Gasoline And Propane At The Same Time To Improve MPG by gonkin(m): 8:56pm On Aug 22, 2020
Drversatile:

Okay. I wanted to use it to judge the fuel consumption on the fuel gauge you posted.

I really look forward to commencing this project. I'll just get a gas regulator first, then regulate the pressure low enough to match the vehicles rpm. Then ride with it for a day and check results. If its positive then I'll work on a permanent setup. From my assumption it takes 40 minutes to prepare rice using gas, my setup will work with extremely low gas pressure imagine if it work as expected and I make above 23mpgs on this rig. Its gonna be a major breakthrough for me.
Re: Running A Car On Gasoline And Propane At The Same Time To Improve MPG by Mokelu: 10:03pm On Aug 22, 2020
Following

1 Like

Re: Running A Car On Gasoline And Propane At The Same Time To Improve MPG by kingreign(m): 10:24pm On Aug 22, 2020
You risk running your internals scorching hot that they'll warp, you'd melt piston crowns and warp top and cylinder walls will become uneven. Hope you know petrol (Gasoline) is also used as a lubricant and a sort of temperature regulator in Petrol based ICE. Also, installing this set up side by side petrol without knowing its volatility index, and properly timing the engine properly to combine the two to detonate exactly the way normal petrol in your engine should will cause premature detonation aka knocking of engine. This isn't something that's worth it for a long term or permanent install.
Re: Running A Car On Gasoline And Propane At The Same Time To Improve MPG by eherbal(m): 10:27pm On Aug 22, 2020
gonkin:


I used a Honda odyssey and i believe it has an identical engine with the 93 Honda accord. Though the 93 already has good mpg. Unless u wanna push it to 40mpg. Besides my odyssey then had a cone air filter element and i deleted a vacuum hose from the air intake manifold. Man that honda was so fast it. I once did a burn out that later damaged my cv joint.

It will work 100%

I removed one of the hoses so it sucks extra air. That car has speed
thanks for the heads up bro.ill definitely get in touch with you when I want to start the project.
Re: Running A Car On Gasoline And Propane At The Same Time To Improve MPG by Mottomata(m): 2:43am On Aug 23, 2020
Interesting discussion. I'm here to learn
Re: Running A Car On Gasoline And Propane At The Same Time To Improve MPG by timifakay(m): 2:59am On Aug 23, 2020
How frequently do you intend changing you gas pipes to avoid a blow out or leakage?
What happens in the event of an accident while performing test drive on public roads?
Beautiful and smart project? Yes
Safe? no
Re: Running A Car On Gasoline And Propane At The Same Time To Improve MPG by LeJeun3: 5:08am On Aug 23, 2020
gonkin:
I found this
Seem useful


Using Mix of Gasoline and Liquefied Petroleum Gas for Lower Emissions and Greater Torque 2013-01-1151

The paper considers the problem of how to improve the economic efficiency of gasoline-powered internal combustion (IC) engines and at the same time increase their eco-friendliness and reduce emissions. Current industry thinking is that the use of alternative fuels (e.g. liquefied petroleum gas (LPG), which is widely used) helps reduce emissions of harmful substances in exhaust gases, but causes a reduction in engine power and torque. One of the ways to fix this problem is to add gasoline to the LPG, while current approaches to this problem improve either ecological performance or power readings of engines. It is assumed that one can change the fuel burning velocity and the amount of harmful substances in exhaust gases by adding gasoline to LPG and varying their percentage fuel mixture (called binary), thus providing higher ecological and operating performance of IC engines. Based on the above assumption a new engine control method has been developed, which improves gasoline IC engine performance and reduces emissions by adjusting the binary fuel composition and controlling the ignition advance angle. The paper presents the results of the experiments set up and examines the efficiency of the method developed.

https://www.sae.org/publications/technical-papers/content/2013-01-1151/



Well done o
..

But after ready this, I believe you saw that gasoline was added to LPG and not the other way round...

You are playing with a home cooked incendiary device please be well aware....




Re: Running A Car On Gasoline And Propane At The Same Time To Improve MPG by gonkin(m): 6:11am On Aug 23, 2020
LeJeun3:




Well done o
..

But after ready this, I believe you saw that gasoline was added to LPG and not the other way round...

You are playing with a home cooked incendiary device please be well aware....





Yes it says gasoline to LPG, though mine is the other way around. LPG introduced to the air intake in small quantities that would be mixed with fuel in the combustion chamber. My EGR has been deleted so it's gonna burn rich causing the ECU to reduce injector pulses making the fuel lean without losing engine power. Tried it with fuel vapour.

I intend to give in a try out when I get a break from work.
Re: Running A Car On Gasoline And Propane At The Same Time To Improve MPG by weyreypey: 6:18am On Aug 23, 2020
Nice thread. Great contributions from kingreign timifakay and lejeune
Re: Running A Car On Gasoline And Propane At The Same Time To Improve MPG by chukel(m): 6:36am On Aug 23, 2020
Very inspiring thread. The kind of threads one should see in cartalk. Op, you never mentioned safety measures. You keep mentioning burning, i keep hoping the mixture doesnt explode in the combustion chamber. A lot of research still needs to be done. Bravo. I love your courage, resourcefulness and doggedness. Following.
Re: Running A Car On Gasoline And Propane At The Same Time To Improve MPG by 9icetoo(m): 3:21pm On Aug 23, 2020
Following the thread.
Re: Running A Car On Gasoline And Propane At The Same Time To Improve MPG by gonkin(m): 9:39pm On Nov 03, 2020
Ok I would have posted something new but I've not been motivated cuz the power generation station that's my place of work has been decommissioned so I aint got no job. Currently looking for a job

So I tried the cooking gas, didn't seem to be as effective as fuel vapour. Remember though my vehicle is an i6 4.0 so its gonna take alot of gas to really have an effect. So fuel vapour is actually better. I adjusted the FPR(FUEL PRESSURE REGULATOR TO MAKE FUEL TO THE INJECTORS LEANER). The 1ltr coke container has just a lil fuel in it. The vacuum from the engine draws fuel from the container as air, that air is very combustible. I'll upload a schematic on the procedure and also upload a video later. The fuel vapour system give a vehicle a good sprint and its on a small quantity. I intend making the container larger and more solid than plastic

Re: Running A Car On Gasoline And Propane At The Same Time To Improve MPG by gonkin(m): 8:55pm On Nov 04, 2020
Here's the link to a quick setup I did


https://www.youtube.com/watch?v=XnWYE5Tnuh0

1 Like

(1) (Reply)

Pls Advise Which Is Best Amongst Infinity Fx35, Rav4 06/07 And Honda Crv 06/07 / Please Nairalanders,kindly Share With Me Your Views On Volks Wagen Passat Cc 200 / Please Kindly Recommend A Good Car Leather Upholstery Specialist

(Go Up)

Sections: politics (1) business autos (1) jobs (1) career education (1) romance computers phones travel sports fashion health
religion celebs tv-movies music-radio literature webmasters programming techmarket

Links: (1) (2) (3) (4) (5) (6) (7) (8) (9) (10)

Nairaland - Copyright © 2005 - 2024 Oluwaseun Osewa. All rights reserved. See How To Advertise. 78
Disclaimer: Every Nairaland member is solely responsible for anything that he/she posts or uploads on Nairaland.