1987 LJ71 with propane injection (1 Viewer)

[crushers]

so I decided to give the littlest of the turbo diesel land cruisers the LJ71 with a 2LT engine a bit more power and see if I can get some more bang for the buck.
this morning I pulled out the propane injection package from my supplier and removed all the components for the propane injection. the only things missing were the 2 "green camping bottles". the LJ71 is a perfect truck to install the propane injection on. it has a perfect spot for the bottles under the hood and the regulator and boost controller fits right above the engine against the firewall. it ends up being one sweet clean install when done.
at the same time I added a fuel pump back at the tank to push the fuel to the front. this made for a much easier start up and bleeding the system is too easy now. turn on the key and crack the nozzles, crank it over and bing, bang, boom you are done. no more hand pumping.
the supplier sent the mating hose from the 2 bottle adapter to the controller too long so that will be changed for future installs and the coupler for the wiring harness was about 12 feet too long but that was easily remedied.
so after 5 hours I was ready for a test drive. considering it is -20C here today I was expecting less than impressive results. I was wrong, the performance is easily noticed. the engine compartment keeps the propane warm so it flows freely.
it pulls much better now and if you keep the throttle steady and turn on the switch you can definitely feel the increase in power. it runs much quieter, smoother, more powerful.

my wife will be using this as her daily driver for the next couple months so I will be able to give a more accurate report as time goes by.

by the way I also PI my little turbo diesel Jeep yesterday and I took it for a quick test run this morning but the truck was too twitchy to take for a proper test drive, the little sucker just wanted to spin the tires so I will have to wait for dry pavement for a proper test. "VROOM< VROOM"

cheers

 

[Island Moose]

Propane will flow down to below -40C, so you're good to go there. Sounds like a great 2nd project to follow my turbo charger install.

 

[beanz2]

Pics please, Wayne.

This will always be the problem with PI in van/wagon type of cruisers. Can't keep propane tanks inside the cab!

Dave

 

[crushers]

tanks and valving

 

[crushers]

location and over view

you can see where the propane is injected into the tube between the air box and the turbo.
you can not see the boost imput line from the turbo to the controller.
so the hand valve between the 2 bottles must be closed before inserting the bottles otherwise the propane will flow from one bottle through the pipe and out the vacant inlet. the electric shut off valve is actuated manually inside the cab by a switch. this automaticly shut off everytime you shut off the ignition switch and must be reset to open the propane.
the propane will flow as far as the black box which will only open at 2 1/2 pounds of boost. once that opens then 1 cfm of propane will flow and as the boost increases then the cfm increases to a max of 3 cfm but this can be manually increased if desired (not recomended). the propane is injected before the turbo for help in atomization of the vapour.
this small amount of propane makes a huge difference in power and the lessening of black smoke out the back. another nice side feature is the reduction in EGT.
cheers

 

[beanz2]

Wayne, does your kit have all that or does one need to gather up the pieces?

Dave

Happy New Year, BTW

 

[roscoFJ73]

Pics please, Wayne.

This will always be the problem with PI in van/wagon type of cruisers. Can't keep propane tanks inside the cab!

Dave

I think in here in oz you would also need a lic installer(Im not saying your work isnt up to standard Wayne as it looks very professional) and special number plates for the fire brigade to identify a fire risk.

 

[crushers]

Wayne, does your kit have all that or does one need to gather up the pieces?

Dave

Happy New Year, BTW

the kit comes with everything but the propane tank(s)...
cheers and happy new year

 

[crushers]

i agree, you would want to make sure the kit is installed properly. free vapour could be a bad "ooops". the instructions are quite complete and i am just a phone call away if a person is not sure of one of the steps.
thanks for the compliment.
cheers

 

[Stone]

I think in here in oz you would also need a lic installer(Im not saying your work isnt up to standard Wayne as it looks very professional) and special number plates for the fire brigade to identify a fire risk.

I know that you need a similar thing when you convert a vehicle to propane here...don't know about the PI thing.

 

[fjbj40]

how long will the two bottles last ?
nice compact install.
Daryl

 

[crushers]

thank you for the compliment.
the 2 bottles should last about 4-6 tanks of diesel depending on driving style...
cheers

 

[beanz2]

So the kit you sent me will take 2 small bottles like these?

Dave

 

[crushers]

is the adapter in the kit?

 

[beanz2]

Let me look in the box...

Dave

 

[tlcruiserman]

Wayne,

Are the values/fitting for the green propane bottles now available? I will need three sets of those for the kits that I bought. Let me know how I get them or if I can pick them up when I come up there.

Thanks,

Michael

so I decided to give the littlest of the turbo diesel land cruisers the LJ71 with a 2LT engine a bit more power and see if I can get some more bang for the buck.
this morning I pulled out the propane injection package from my supplier and removed all the components for the propane injection. the only things missing were the 2 "green camping bottles". the LJ71 is a perfect truck to install the propane injection on. it has a perfect spot for the bottles under the hood and the regulator and boost controller fits right above the engine against the firewall. it ends up being one sweet clean install when done.
at the same time I added a fuel pump back at the tank to push the fuel to the front. this made for a much easier start up and bleeding the system is too easy now. turn on the key and crack the nozzles, crank it over and bing, bang, boom you are done. no more hand pumping.
the supplier sent the mating hose from the 2 bottle adapter to the controller too long so that will be changed for future installs and the coupler for the wiring harness was about 12 feet too long but that was easily remedied.
so after 5 hours I was ready for a test drive. considering it is -20C here today I was expecting less than impressive results. I was wrong, the performance is easily noticed. the engine compartment keeps the propane warm so it flows freely.
it pulls much better now and if you keep the throttle steady and turn on the switch you can definitely feel the increase in power. it runs much quieter, smoother, more powerful.

my wife will be using this as her daily driver for the next couple months so I will be able to give a more accurate report as time goes by.

by the way I also PI my little turbo diesel Jeep yesterday and I took it for a quick test run this morning but the truck was too twitchy to take for a proper test drive, the little sucker just wanted to spin the tires so I will have to wait for dry pavement for a proper test. "VROOM< VROOM"

cheers

 

[crushers]

Michael,
let me first check into the area on the 74 series to make sure there is enough room to mount them. on the 70 series i feel there is enough but the 74 is a bit tight.
cheers