Propane.. - Competition Diesel.Com

Randall12v · 12-25-2006, 12:06 PM

I was wanting to look into running a propane kit on my truck...anyone run this on a 12 valve? what type of hp and tq gains would I be looking at?? I haven't looked into any kits yet, but does anyone know if they are controlled from onboard...or some mount on the dash that will control the amount of pressure of propane coming out? Is there any type of gauge to possible watch the pressure?? Any ideas of the best kit out there? Merry Christmas Everyone!

Trapper · 12-25-2006, 02:15 PM

Propane was the thing to do about 5-6 years ago. It's not the best power adder. It can be used safely but its not as effective as we thought, I would look for injectors and a turbo.

RacinDuallie · 12-25-2006, 02:42 PM

Be very careful with spikey cylinder pressures using LPG. . . Been known to take out quite a few headgaskets......

***Timbeaux*** · 12-25-2006, 03:26 PM

Save the propane for your steaks and get some pump mods, injectors and a turbo. You will make more power more safely than with propane. I have only seen abbout 50 hp with LP, and it is rough on the motor

oldsmokey97 · 12-26-2006, 09:47 AM

i totally agree.

Jack that pump up and give it some air. You will be more than happy.!!!!
If you use ANY kinda "drug" make it NOS. If you have to have something.

Lance

powershotone · 12-26-2006, 11:54 AM

"I was wanting to look into running a propane kit on my truck...anyone run this on a 12 valve? what type of hp and tq gains would I be looking at?? I haven't looked into any kits yet, but does anyone know if they are controlled from onboard...or some mount on the dash that will control the amount of pressure of propane coming out? Is there any type of gauge to possible watch the pressure?? Any ideas of the best kit out there? "

Systems are different, so do some homework. Propane gets a bad rap, but if you do a search of this or other forums, you will not find too much justification or documentation for it. Those that have it and use it are usually very happy with it.

You will see gains of around 60-80 hp and around 150 ft lbs torque on a stock or slightly modified 12 valve.

Some are just basically power on and power off, controlled by a pressure switch, that kicks in the engine mounted regulator/vaporzier at a certain pressure that you set. This kick in time can be adjusted, but the amount of propane is kind of set. Some have computer controls that have different perimeters you can set to try and control the flow. Others are variable flow, and controlled and metered with boost pressure, so the flow is throttle controlled and on demand. With this type, your boost gauge is your monitor for knowing the amount of pressure of propane coming out.

12-25-2006, 12:06 PM	#1
Randall12v Name: Randall12v Title: ... Status: Not Here Join Date: Nov 2006 Location: Quad Cities, IL. Member`s Gallery Posts: 2,396	Propane.. I was wanting to look into running a propane kit on my truck...anyone run this on a 12 valve? what type of hp and tq gains would I be looking at?? I haven't looked into any kits yet, but does anyone know if they are controlled from onboard...or some mount on the dash that will control the amount of pressure of propane coming out? Is there any type of gauge to possible watch the pressure?? Any ideas of the best kit out there? Merry Christmas Everyone!

12-25-2006, 02:15 PM	#2
Trapper Name: Trapper Title: Hater Status: Not Here Join Date: Aug 2006 Location: Arizona Member`s Gallery Posts: 2,878	Propane was the thing to do about 5-6 years ago. It's not the best power adder. It can be used safely but its not as effective as we thought, I would look for injectors and a turbo. __________________ Work In Progress

12-25-2006, 02:42 PM	#3
RacinDuallie Name: RacinDuallie Title: Black Sheep Racing Status: Not Here Join Date: Apr 2006 Location: Supporting Northeast Diesel Racing Member`s Gallery Posts: 17,369	Be very careful with spikey cylinder pressures using LPG. . . Been known to take out quite a few headgaskets...... __________________

12-26-2006, 09:47 AM	#5
oldsmokey97 Name: oldsmokey97 Title: Too Much Time Status: Not Here Join Date: Aug 2006 Member`s Gallery Posts: 744	i totally agree. Jack that pump up and give it some air. You will be more than happy.!!!! If you use ANY kinda "drug" make it NOS. If you have to have something. Lance __________________ COMPETITIONDIESEL.COM Bringing the BEST Together

12-26-2006, 11:54 AM	#6
powershotone Name: powershotone Title: Rookie Status: Not Here Join Date: Aug 2006 Member`s Gallery Posts: 3	"I was wanting to look into running a propane kit on my truck...anyone run this on a 12 valve? what type of hp and tq gains would I be looking at?? I haven't looked into any kits yet, but does anyone know if they are controlled from onboard...or some mount on the dash that will control the amount of pressure of propane coming out? Is there any type of gauge to possible watch the pressure?? Any ideas of the best kit out there? " Systems are different, so do some homework. Propane gets a bad rap, but if you do a search of this or other forums, you will not find too much justification or documentation for it. Those that have it and use it are usually very happy with it. You will see gains of around 60-80 hp and around 150 ft lbs torque on a stock or slightly modified 12 valve. Some are just basically power on and power off, controlled by a pressure switch, that kicks in the engine mounted regulator/vaporzier at a certain pressure that you set. This kick in time can be adjusted, but the amount of propane is kind of set. Some have computer controls that have different perimeters you can set to try and control the flow. Others are variable flow, and controlled and metered with boost pressure, so the flow is throttle controlled and on demand. With this type, your boost gauge is your monitor for knowing the amount of pressure of propane coming out.