Mods to a diesel engine? : )

[crazy_boy]

Around 14.5kpl highway even fully loaded. and around 12kpl city, but it could be better if I did not push it so hard, I like to burn out and do fast launches in the van lol.

Very good fc you got there.


Question, how do we actually adjust air-fuel ratio in non-efi engines?

[dvldoc]

Adding LPG adds fuel, It also burns the 25% of wasted diesel your vehicle cannot burn on it's own. It also increases injection timing. Think of it like a chip in bottle.

[Ammiel Barlis]

Adding LPG adds fuel, It also burns the 25% of wasted diesel your vehicle cannot burn on it's own. It also increases injection timing. Think of it like a chip in bottle.

Im planning to use a 2.7 kg superkalan lpg tank for this mod. The tank is fairly small, can i put it inside the engine bay or would it be safer inside the vehicle?

[dvldoc]

No you cannot put it in the engine bay. It has to go in the back of the vehicle. This is not a mod for those who are not mechanically inclined. If you need it done the right way as a kit you can give me a buzz. I have extra parts to make like 3 systems for a turbo diesel. You would have to find your own regulator I think I only have one of them.

A surplus Acetylene Regulator with POL fitting is the perfect thing for this mod. You just need to replace the low side gauge with a 0 to 30 psi gauge.


I can do these in boost activated or digital progressive systems which inject based on how much boost your making using one of our controllers, Or you can find a pressure switch at a shop that is either adjustable or at least 5psi.

LPG will kick you in the butt every time it comes on. It's very effective.

[edtf]

No you cannot put it in the engine bay. It has to go in the back of the vehicle. This is not a mod for those who are not mechanically inclined. If you need it done the right way as a kit you can give me a buzz. I have extra parts to make like 3 systems for a turbo diesel. You would have to find your own regulator I think I only have one of them.

A surplus Acetylene Regulator with POL fitting is the perfect thing for this mod. You just need to replace the low side gauge with a 0 to 30 psi gauge.


I can do these in boost activated or digital progressive systems which inject based on how much boost your making using one of our controllers, Or you can find a pressure switch at a shop that is either adjustable or at least 5psi.

LPG will kick you in the butt every time it comes on. It's very effective.

Will there be an increase in temperature with the logo mods?


Sent from my GT-I9100 using Tapatalk 2

[monty_GTV]

hi dvldoc, we have some taxi's running on LPG in PI especially in metro manila area, have you seen any of them? im not sure but i think they have a modified engines that runs on LPG alone and not on gas-lpg combo. their trunks is where they have the tanks, and sometimes or most of the times the smell of the gas come inside the cabin...

btw, is installing an LPG mod will also increase your exhaust gas temp (EGT)? can you install and LPG mod without Water-Alcohol Injection? TIA

[dvldoc]

You will only get a slight EGT temp rise around 10C, basically insignificant if your doing it properly. This is also not for for gas engines it's for diesels.

You don't need water injection to run LPG fumigation. The best way i can describe LPG fumigation is a Chip in a bottle, it increases injection timing while adding fuel. It due to it's low cetane number allows you to burn a up to 98% of your diesel. Adding water injection will just let you make more power and turn up the LPG. But really with 3psi you will be very happy on a 4cly turbo diesel.

Anyone interested in a system can PM me, I can do a few this trip. Just like the water injection your guaranteed results. A progressive system is really the best way to go but you do a normal boost activated set up. Currently mine is just boost activated but will be switching to progressive.

[dvldoc]

Another example of a LPG set up, I have a similar regulator on my unit there. Except I run the solenoid valve up front not at the tank.

[dvldoc]

Here's a little video I did back in 2011. Toggling the LPG on and off. It's set to activate at 6psi of boost. You can see the difference when it's not on versus on when it hits 6psi. It ramps up way quicker and I get free boost. It kicks in at about 100kph and the van will go up on it's one to 125kph or so if you don't back off the throttle.

[monty_GTV]

hi dvldoc, thanks for your reply.

another question, when you install a WAI and LPG mod, do you need also to modify your exhaust system? have you done any modification to your Elgrand's exhaust system? TIA

[dvldoc]

No my elgrand is bone stock exhaust. I will be doing a downpipe from speedlab because my boost has been maxed out at 23psi so I need more flow. With my LPG I only run strait water now, Don't need any alcohol since I have extra fuel already. I am also adding that air fuel controller so I can gain even more power by adjusting my diesel fuel curve.

[monty_GTV]

hi dvldoc, thanks for your reply.

another question, when you install a WAI and LPG mod, do you need also to modify your exhaust system? have you done any modification to your Elgrand's exhaust system? TIA

i see, i asked about it because you've been discussing about increasing boost to aid in combustion and gaining additional power but not on exhaust system to match the intake mods. i understand, you have now air+fuel+LPG+water mist in your Elgrand's combustion chamber. since you don't need the alcohol now, maybe you can make and introduce another devilsown design combo of LPG-Water injection i think thats feasible with someone technically inclined like you. that can even be better than the WAI as LPG is more common in PI.

[dvldoc]

Well not a lot of time for that, But I can do a few select systems for a couple of people. I don't use alcohol but I still need the water. It keeps my temps way way down. Lets me run more LPG and add more diesel and make even more power. Some industrious Pinoy can figure out how to make a Diesel LPG fumigation set up. It is a simple as it comes to make a nice safe kit. It's just a matter of sourcing the parts.

[monty_GTV]

you are right doc, pinoys ingenuity and being typically industrious, it will not take long before they figure out the Diesel-LPG fumigation system. once they see the set-up and its benefits, the ingenuity will come in. glad we have people like you continuously imparting ideas on diesel engine sytems that really works and utilizing common fuels easily source in the country.

[dvldoc]

I can dyno prove the power on any vehicle. This is not HHO lol. I will be at Berimma Diesel on March 9th for Elgrandclubph event. If you decide to go with this I will pay for your dyno base run and system on.

[monty_GTV]

thanks for the offer doc but i plan to go in that route of diesel mods after my warranty period. for now, i am still happy with the stock performance of my smoke belching (sometimes) gtv but 2t during refuelling helps

[taraki17a]

with a downpipe you will get more midrange and top end power.

As far as the ranger goes, high flow filter and if popossible a manual boost controller. chipping or alcohol injection would be next step. the fuel controller I posted would ler u add a good bit of power butbu need a boost and egt gauge.

hour meter is a Nordskog like my old. boosr guage and my current volt meter its for marine use so its heavy duty got it on ebay for 25usd.

sir dvldoc, i am confused on which to pursue for my 2.2 ranger, either chip or wai... cant have both for now as budget is limited. i would like power/torque gain for accelaration, for up hill climbing, from 1k to 2.5k rpm should have the high gain. kindly advice...

[dvldoc]

Alcohol injection can can you as much as a Chip so it's a matter of budget and if you mind filling a tank from time to time. Chips are around 35000p

Example Dchip Strada 3.2 common rail. Gain 26.7hp



Alcohol Injection on my 3.2 Elgrand electro mechanical injection This was just with a 3gph nozzle using around 30% rubbing alcohol, Gain 34.6


So which the Chip it depends on the setting, With the alcohol injection it depends on nozzle size and alcohol percentage plus adding boost will give you even more power..

Here's a Focus picking up 30hp with just our kit.



Both work well and are a monster when combined.

Feel free to PM about a kit.

[crazy_boy]

Alcohol injection can can you as much as a Chip so it's a matter of budget and if you mind filling a tank from time to time. Chips are around 35000p

Example Dchip Strada 3.2 common rail. Gain 26.7hp



Alcohol Injection on my 3.2 Elgrand electro mechanical injection This was just with a 3gph nozzle using around 30% rubbing alcohol, Gain 34.6


So which the Chip it depends on the setting, With the alcohol injection it depends on nozzle size and alcohol percentage plus adding boost will give you even more power..

Here's a Focus picking up 30hp with just our kit.



Both work well and are a monster when combined.

Feel free to PM about a kit.

Doc isnt your air-fuel ratio too high?

[dvldoc]

I don't know if the AFR was even reading on that run since it's just flat lined , The air/fuel ratios for diesel engines under full load are between 17:1 and 29:1,

The Mod I would like to know is how to increase the Injection timing on a non common rail electro mechanical injection pump.