Gas On Alloytec 190

[CNULTR]

My father owns a 05 WL CAPRICE and bc the vehicle runz all day, he is thinking about installing a GAS system in it. What do use recommend shud he or shudnt he also will the Alloytec 190 stuff up?

[benzor]

Alloytec 190 doens't do gas, plain and simple, it can't be done.

The 175 does however, it requires a complete different setup, from what I've heard there's another complete set of gas injectors + a completely new manifold fitted.

Also when posting, please try to use english, having to read the thing 4 times before responding kind of sucks.

[Hibba]

Currently the 175 is the only Alloytech avaible from factory with LPG, and its quite a unique setup at that to.


As far as we know there isnt a plan to release a 190 on gas.

As far as if it could be done aftermarket? In all seriousness i couldn't tell you and i dont think anyone else could. I don't even think its been atempted, but i guess it could be done. Hell people said you couldn't do a Gen3 on gas, yet i have seen it done.

[vy_storm]

Give it time, LPG demand is increasing so much at the moment because of petrol prices going up. When there are more Alloytecs on the market out of warranty I think you will see a few people trying to attempt it.

[Doctor Bob]

it has been done & it has also voided the customers engine warranty, the engine needs to be factory fitted with lpg & all the associated mods, if this is not done the cylinder heads WILL fail, no ifs, no buts.
The conversion i saw was a POS & didnt start properly, idled like a hat full of busted ones.
Cheers Rob

[CNULTR]

Thankz alot guys cheerz

[twb1979]

Hi Guys,

Been meaning to dig this old thread up for a while.

Does anyone have any updates on gas converstions for VZ's??

Petrol prices are sky-rocketing and I struggle to believe that Holden still hasn't released a conversion kit for the 172/175 and 190kw engines.

As far as I know nobody is doing the conversions here in WA.

Anymore new info muchly appreciated.

cheers

Tom/WA

[BLACKVZSV8]

As far as Im aware anything with a plastic intake manifold cant run on gas ie Gen3s alloytechs etc

[JanetSSV]

As far as Im aware anything with a plastic intake manifold cant run on gas ie Gen3s alloytechs etc

the intake manifolds on the gen3 and the alloytecs are made from alluminum, or are u meaning the intake pipe? if you are then it is possible because the gas just flows through the intake pipe and into the engine.

[BLACKVZSV8]

The manifolds are composite plastic.

Basically you cant run them on gas because the manifold cant cope if the engine backfires (which can happen on gas).

To run them on gas you need to change the manifold.

[Scotty_Doesn't_Know]

Why are do so many people mis-understand LPG?

The ONLY PROBLEM Holden (and any manufacturer) have is how to produce a good DUAL FUEL solution. i.e. an engine that runs on both LPG and Petrol. Most people don't want to be limited to ONLY LPG even thought it would be a better solution.

Any well informed mechanic, mechanical engineer or LPG specialist will tell you a car that runs SOLELY on LPG with a proper and FULL engine modification will not only run smoother, cleaner and further, but it will also produce (or at least have the potential to produce) MORE power! LPG has a higher octane rating than Shell's Optimax Extreme (the only 100RON fuel on sale in Australia).

If an engine is properly and very professionally FULLY converted to LPG and tuned specifically for it, it's a MUCH better solution than petrol. Problem is, not many people know this.

Duel fuel is harder (for obvious reasons - well if they aren't obvious you should give up trying to understand) to do right.

The MAIN reason petrol powered engines are more common if LPG has the potential to be better??? Well, LPG was an after thought, a bi-product. It is waste left over when refining petrol. LPG - Liquid Petroleum Gas. And there simply hasn't been as much development in using it because to refine and use it, you have to be refining and producing petrol...

Something else people may not be aware of regarding the cost of LPG is that it is not currently subjected to the 38.14 cents per litre Federal Excise that petrol fuels are subject to. However in 2011, the whole system will change. The taxation system that will be implimented in 2011 on all fuels will be based on their "energy content". So THEORETICALLY this will make fuels with more "energy" and that are more environmentally friendly (such as LPG, Diesel and the higher octane fuels) could in fact end up being cheaper than regular unleaded. Most opinion however is that current fuel prices will remain the same (or similar) and this is simply going to be an excercise to bring LPG into line with them.

NRMA has a good read: http://www.mynrma.com.au/carbuying_lpg.asp

[JanetSSV]

The manifolds are composite plastic.

Basically you cant run them on gas because the manifold cant cope if the engine backfires (which can happen on gas).

To run them on gas you need to change the manifold.

if the manifolds are made from plastic of any description it would melt from the high under bonnet temps so the manifold needs to be made from a metal to withstand the temps, there would be no need to change the manifold because the gas system can be fitted in before the throttle body, even on dedicated gas cars the manifold is the same as on a dedicated petrol car the only difference between both motors is one has injectors and the other doesnt, and the throttle body is different.

[BLACKVZSV8]

if the manifolds are made from plastic of any description it would melt from the high under bonnet temps so the manifold needs to be made from a metal to withstand the temps, there would be no need to change the manifold because the gas system can be fitted in before the throttle body, even on dedicated gas cars the manifold is the same as on a dedicated petrol car the only difference between both motors is one has injectors and the other doesnt, and the throttle body is different.

Do some research, ring holden, or even do a simple google search on LS1 and gas. The manifold IS PLASTIC !!!!!

Please dont respond till you do some research on this as I have.

Refer to www.ls1.com.au for more information and ring your local holden dealer.

[west55]

BLACKVZSV8
Bit uncalled for PAL! It was you afterall that asked when SV8 had gone to 3.7 diff gears? This information was freely available if you had checked?
Give the lady a go? She is asking reasonable questions and deserves a reasonable reponse!
Do I make my point............

Ian

[BLACKVZSV8]

BLACKVZSV8
Bit uncalled for PAL! It was you afterall that asked when SV8 had gone to 3.7 diff gears? This information was freely available if you had checked?
Give the lady a go? She is asking reasonable questions and deserves a reasonable reponse!
Do I make my point............

Ian

What's uncalled for? Stating facts? Wake up.

She got a reasonable response the first time and chose to ignore it. I then responded AGAIN with legitimate information.

Point? What point you made a worthless post thats about it.

[sting ls2]

As far as Im aware anything with a plastic intake manifold cant run on gas ie Gen3s alloytechs etc

Material Applications for Alloytec 3.6 engines.

Block Material:
Aluminium, precision sand-cast 319 with cast-in-place iron liners
Cylinder Head Material:
Aluminium, semi-permanent mould 319
Intake Manifold: Upper: Aluminium, gravity die 319
Lower: Aluminium, gravity die 319.
NO plastic intake here on Alloytecs'

[Doctor Bob]

Hi Guys,

Been meaning to dig this old thread up for a while.

Does anyone have any updates on gas converstions for VZ's??

Petrol prices are sky-rocketing and I struggle to believe that Holden still hasn't released a conversion kit for the 172/175 and 190kw engines.

As far as I know nobody is doing the conversions here in WA.

Anymore new info muchly appreciated.

cheers

Tom/WA

it has been done & it has also voided the customers engine warranty, the engine needs to be factory fitted with lpg & all the associated mods, if this is not done the cylinder heads WILL fail, no ifs, no buts.
Currently the 175 is the only Alloytech avaible from factory with LPG, and its quite a unique setup at that to.
Janet, the LS1 inlet manifold is composite plastic
the alloytec is aluminium alloy
Cheers Rob

[JanetSSV]

thanks for that doctor bob, i didnt clarify what i was meaning when i was speaking about the intake manifolds i was refering to the alloytech motor and not the ls1, should have made it more clear in the start, Cheers Janet

[BLACKVZSV8]

My bad I knew the 8 was plastic was sure the 6 was plastic as it looks and feels plastic.

[BWald]

Just searchin google and found www.lpgautogas.com.au which lists a complianced kit by Sprintgas P/L 03 9350-5500 to suit all VZ alloytecs. I havent contacted them but seems like they are in Vic. somewhere.
Cheers
Bruce

[BLACKVZSV8]

thanks for that doctor bob, i didnt clarify what i was meaning when i was speaking about the intake manifolds i was refering to the alloytech motor and not the ls1, should have made it more clear in the start, Cheers Janet

the intake manifolds on the gen3 and the alloytecs are made from alluminum

if the manifolds are made from plastic of any description it would melt from the high under bonnet temps so the manifold needs to be made from a metal to withstand the temps

Come on Janet if i can admit when i was wrong Im sure you can too !!

[JanetSSV]

ah ok i guess im wrong on what i had put i was under the impression that the ls1 manifolds where also made from alluminium, i was also wrong about the manifolds on the ls1 melting at high temps but if there made from composite plastic there is a huge difference in tempreture withstanding points. my bad too so we both now stand corrected. Janet

[BLACKVZSV8]

I did state they were made of composite plastic in the beginning

Yes we are both noobs who are now better educated

[JanetSSV]

Yes we are now both better educated. somehow missed the composite plastic bit in the start. my bad. allthough allready admitted. Hey were both from WA but u dont join our cruises. U got any reason for that. Be good to have someone new along.. maybe

[BLACKVZSV8]

I havent seen any local cruises posted yet, if I do Ill come say hi for sure.