VSI/CNG/LPG system pic's

[Floor]

like I said, picked up my baby from the shop who did the gas installation. I think you guys call it CNG :dontknow: They used a 10 cilinder gas diffusor for the first time on my truck :rock: Enjoy.....
the regulator/computor runs in parallel with the std system, so no HP loss (also no gain ).

 

[RedSrt007]

wow...looks like some sick-n-twisted nitrous setup

Is it 100% LPG or mix?

-Red

 

[Floor]

I wished it was Nitro. Imagine , 60 gallon of NOx in the bed it would blow the engine skyhigh

100% LPG dear admin as you can get from the petrol station. Fill plug is just next to the rear licence plate you don't pay attention to it at all

 

[Bone]

How long does it take to fill the tank up?

 

[Broke]

Got a picture of the bottle. Did you remove the gas tank and put the bottle in that location?

 

[Floor]

How long does it take to fill the tank up?

It doesn't take much longer than filling up the petrol tank.
Remember it is Liquified Petroleum gas (60% butane/40% propane)
It is stored in liquid form @ 6-8 barg (120 PSI) in the tank so filling
goes very smooth. It is injected in the motor after expansion, because it is again in gas stage the detonation is better where with Petrol you inject a mist of liquid.
Don't know all the technical details , but it's 30% of the cost of Petrol arround here so driving the truck becomes affordable again

 

[Floor]

Got a picture of the bottle. Did you remove the gas tank and put the bottle in that location?

No, Petrol (gas) tanks is still there. You 'fire up' on gas, automaticly (above a certain rpm and stable engine temp) the system switches to LPG. While driving
you can always switch again to gas (petrol).
It extends the driving radius quite a bit
The std controller 'thinks' he's always on gas, even when driving on LPG. He sends the fuel algorithm (depending on the throttle position and rpm I guess) to the LPG controller. So the gas pump is always on. Driving without any gas could damage the gas pump when it's dry.

 

[Floor]

fastlane, LPG is in europe mainly used for cutt back on fuel cost.
Where the early systems (10 years ago ?) were a little unreliable in the long run and cause powerloss the currents systems have improved a lot over the years....
As you might know taxes on fuel are skyhigh in europe resulting in high end pricing (1,5 euro per liter = 7,9 USD/gallon) which makes it interesting to install LPG. If you do a lot of miles/year the system pays off quickly enough.

Combustion is a little better because you inject fuel in gas stage iso evaporatation the petrol first. Restidual substances after combustion are also less compared to normal fuel but the energetic values are slightly lower hence you need more lpg to have the same HP in the end.
Because it's a "greener" fuel goverment tries to promote it but not that succesfull unfortunately. Hell, we don't have a goverment for more then 170 days now since the last elections:dontknow:

It's my daily driver and not a company car so fuel cost is an important issue for me.... without the lpg I couldn't have bought this animal. Lifecycle cost would have been out of budget.

 

[belgiumbarry]

i see you're better now with the fever... :rock:
PS has this anything to do with the boobs from yesterday evening :dontknow:

 

[Prof]

I asked this before but am still wondering if the system could be used here as a carbon dioxide injection system in place of an intercooler or meth injection.

Several builders are currently experimenting with CO2 for forced induction engines...

Joe at JMB might be very interested in the technology...is it possible that rather than LP gas, that CO2 could be the gas injected...?

 

[Floor]

I think the hardware (tank, evaporator(s), injectors etc) can be used for other gasses aswell. System basicly consists of a VSI system (vapour sequential injection) with integrated motormanagement system (master/slave on the std system), communication with laptop possible through CAN, high flow (14 gram/s) evaporator(s) with overpressure protection and 'Keihin' injectors. more info on http://www.prins.eu/en/index.html.

But in the end it replaces the petrol fuel. If you want to use it for CO2 or meth the software should be completely different:dontknow: Maybe it's better to contact these guys and see what they say on this.

 

[Riff62]

Just curious..how far can you drive with all tanks full..LPG and Gas?

Do you worry about what will happen in a serious fender bender?..and are there any other safety features to prevent a catostrophic failure?

 

[belgiumbarry]

Just curious..how far can you drive with all tanks full..LPG and Gas?

Do you worry about what will happen in a serious fender bender?..and are there any other safety features to prevent a catostrophic failure?

those pressure vessels for LPG are proven to be more safe in case of a accident then a petrol tank... They are filled at most 80 % so there's always a LPG "cussion" which can be compressed ( as not with full fluid ) and ofcourse those tanks are steel which has a great deformation possibility before break , designed for sure more then 10 bars.... ( don't know exactly ) as petrol tanks are plastic these days...

But small leaks have made some BOEM's :star: in earlier years... sure in closed garages where you start the car in the morning and find your roof at the neigbours....

 

[Floor]

Just curious..how far can you drive with all tanks full..LPG and Gas?

Do you worry about what will happen in a serious fender bender?..and are there any other safety features to prevent a catostrophic failure?

haven't tried to find out the radius with all tanks full. I keep the petrol full for a 1/4 (just enough to start the cold engine) and run on LPG other times... The system itself has quite well regulated by the goverment in terms of protection devices over here and requires yearly inspections to make sure everything is ok.

 

[belgiumbarry]

I think the hardware (tank, evaporator(s), injectors etc) can be used for other gasses aswell. System basicly consists of a VSI system (vapour sequential injection) with integrated motormanagement system (master/slave on the std system), communication with laptop possible through CAN, high flow (14 gram/s) evaporator(s) with overpressure protection and 'Keihin' injectors. more info on http://www.prins.eu/en/index.html.

But in the end it replaces the petrol fuel. If you want to use it for CO2 or meth the software should be completely different:dontknow: Maybe it's better to contact these guys and see what they say on this.

Now that's my problem with those guys : i calculated it myself : try to follow :

14 gr/sec x 3600 sec = 50,4 kg/hour.

So let's say you drive 200 km/hour ,you can evaporate 50,4:2 = 25,2 kg LPG per 100 km .

LPG is 20 % less energetic then petrol , so it's equivalent to 25.2 :1,2 =
21 kg petrol/ 100 km . That's the consumption running at idle

So i prove LPG is not performance , not even with 2 evaporators ( 14 gr/sec)as mine..... most time i can get 5000 revs... no more .

Be carefull for your engine : as my LPG specialist admitted after my calculations is the fact that everytime you feel the shortness of LPG ( no more extra power ) you actually lean out the engine ...so sure not gonne drive constant at the limit ! or BOEM :star:

Then i also proved that the Keihin injectors are to small ( believe yellow ones are the greatest with 93 cc/injection ) .You should need 2 of those parallel per cilinder....

Now i think we must admit that those LPG installations are designed for smaller engines ( up to 300 -400 HP ) and for bigger ones as ours there's simply nothing availeble right now at the market.

That's evident that with my Roe i can forget LPG ....
Sorry.


But if you take as rule of tumb that a engine consumes the double for his last , say 25 % , HP , on LPG you run "safe" under 4500 revs... above you run lean which is dangerous !

 

[Floor]

I should have connected my wideband Air/fuel ratio gauge next week. 15,5:1 is the optimum ratio. I'll post up the values a higher revs later...

 

[belgiumbarry]

I should have connected my wideband Air/fuel ratio gauge next week. 15,5:1 is the optimum ratio. I'll post up the values a higher revs later...

what takes you so long to install A/F metering ? :dontknow:

 

[Floor]

what takes you so long to install A/F metering ? :dontknow:

fewer and now headacke

 

[Jus10]

Hellooo

Long time ago, in 1 week I'm bringing my truck to the shop where they will install the same system as yours Jan. It's also the 10 cilinder system. Can't wait till it's installed, my truck will be my daily vehicle then :rock: yesterday I went to Antwerp with the truck and I thought there was a hole in my gas tank, daaamn I could see the needle go down
But good times are coming

I hope we can get together sometime, like we did last year.

CU Soon guys!

Justine

 

[belgiumbarry]

Hellooo

Long time ago, in 1 week I'm bringing my truck to the shop where they will install the same system as yours Jan. It's also the 10 cilinder system. Can't wait till it's installed, my truck will be my daily vehicle then :rock: yesterday I went to Antwerp with the truck and I thought there was a hole in my gas tank, daaamn I could see the needle go down
But good times are coming

I hope we can get together sometime, like we did last year.

CU Soon guys!

Justine

hey Justine, you can have my installation ( as good as new ) for a friendly price if you want... ofcourse you need someone to install it... it's the 230 l tank, 2 new evaporators from Prince , 2 computers and injectors L&G... system was running perfect but i demount it for the ROE Supercharger ...
Even have my inletmanifold with the gasnipples ... you don't need to drill yours .. :rock: :rock: :rock: