LPG possible??
Discussion
if you are going to do an LPG ultima then really you have to do away with petrol. you can have a system that only runs on gas. however there are a few things that cause problems
1 the tanks have a max hp rating so you need 2
2 the evaporators have a max hp rating so you need two
3 every one will call you tight
4 do you want to crash in an lpg ultima with two tanks
5 the injectors are 75 hp max 16 needed for 600+
these are the issues the engine is no problem as my monaro demonstrates
1 the tanks have a max hp rating so you need 2
2 the evaporators have a max hp rating so you need two
3 every one will call you tight
4 do you want to crash in an lpg ultima with two tanks
5 the injectors are 75 hp max 16 needed for 600+
these are the issues the engine is no problem as my monaro demonstrates
SplatSpeed said:
if you are going to do an LPG ultima then really you have to do away with petrol. you can have a system that only runs on gas. however there are a few things that cause problems
1 the tanks have a max hp rating so you need 2
2 the evaporators have a max hp rating so you need two
3 every one will call you tight
4 do you want to crash in an lpg ultima with two tanks
5 the injectors are 75 hp max 16 needed for 600+
these are the issues the engine is no problem as my monaro demonstrates
1. Don't know enough about this to comment, so will have to take your word.1 the tanks have a max hp rating so you need 2
2 the evaporators have a max hp rating so you need two
3 every one will call you tight
4 do you want to crash in an lpg ultima with two tanks
5 the injectors are 75 hp max 16 needed for 600+
these are the issues the engine is no problem as my monaro demonstrates
2. Does a liquid injected system need an evaporator?
3. Who cares?
4. Seen a couple of LPG cars take big hits in the tank area and emerged a-ok. In fact, not heard of one going pop. Petrol tanks however...
5. Up to 600BHP is fine for me!
Scotty-Boy said:
SplatSpeed said:
if you are going to do an LPG ultima then really you have to do away with petrol. you can have a system that only runs on gas. however there are a few things that cause problems
1 the tanks have a max hp rating so you need 2
2 the evaporators have a max hp rating so you need two
3 every one will call you tight
4 do you want to crash in an lpg ultima with two tanks
5 the injectors are 75 hp max 16 needed for 600+
these are the issues the engine is no problem as my monaro demonstrates
1. Don't know enough about this to comment, so will have to take your word.1 the tanks have a max hp rating so you need 2
2 the evaporators have a max hp rating so you need two
3 every one will call you tight
4 do you want to crash in an lpg ultima with two tanks
5 the injectors are 75 hp max 16 needed for 600+
these are the issues the engine is no problem as my monaro demonstrates
2. Does a liquid injected system need an evaporator?
3. Who cares?
4. Seen a couple of LPG cars take big hits in the tank area and emerged a-ok. In fact, not heard of one going pop. Petrol tanks however...
5. Up to 600BHP is fine for me!
2 yes this is plumbed into the heating system and is used to convert it to a gas state
3 true just warning you
4 true the tanks are very good and safe although the best place for them is below the doors. so you are trusting engineering as if there is a problem bang goes youe exit strategy. also in the car there is a safe area in the boot that is outside the engine and passenger compartment. have you seen a calor gas bottle explode?? the problem may not be the tank but the fittings dont want a gas fire in my escape route
5 for you yes but some others require more and the fact gas is a higher octane can leead to higher boost pressures and possiable liquid LPG injectors for secondary charge cooling
I picked this up from a Liquid Injection website:
LIQUID INJECTION:
The LPG is kept in the liquid state and injected in the multi-point petrol fashion. There is no vaporiser present. The benefits of the freezing effect in the phase change are utilised to achieve a more dense air charge and hence, greater efficiency.
LIQUID INJECTION:
The LPG is kept in the liquid state and injected in the multi-point petrol fashion. There is no vaporiser present. The benefits of the freezing effect in the phase change are utilised to achieve a more dense air charge and hence, greater efficiency.
Scotty-boy, i think in OZ they already have dual fuel LS engines kicking about, or atleast conversion for them! as Boosted said, with forced induction you can really utilise the better octane rating.
on a side note, have you guys ever thought what is going to have to happen to the ultima if we still want them around in say 10-15years time?? itsok saying, well i'll put up with the stupid high fuel prices now, but what happens when they go up even more?? are you still going to run highly strung SBC's with carbs when petrol is £5.00 a ltr???
if the answer to the above is no, and you still want ultimas to be around in the future, then lets not p!ss on these ideas now.
Cheers
Chris.
on a side note, have you guys ever thought what is going to have to happen to the ultima if we still want them around in say 10-15years time?? itsok saying, well i'll put up with the stupid high fuel prices now, but what happens when they go up even more?? are you still going to run highly strung SBC's with carbs when petrol is £5.00 a ltr???
if the answer to the above is no, and you still want ultimas to be around in the future, then lets not p!ss on these ideas now.
Cheers
Chris.
I've been having this conversation with some of the guys in the office and many were worrying that the Government will eventually whack the tax onto LPG.
I've no doubt that they will start at some point, but with all the posturing and point scoring on cleaner greener solutions it would be a brave Government that tried to do it anytime soon!
At a guess, I reckon there's at least another 5 years worth of low LPG prices before low oil reserves start biting and make price rises a necessity.
For me it's a no brainer, and lets face it - if you can build and maintain an Ultima, then you can fit / strip an LPG system in a heartbeat!
I've no doubt that they will start at some point, but with all the posturing and point scoring on cleaner greener solutions it would be a brave Government that tried to do it anytime soon!
At a guess, I reckon there's at least another 5 years worth of low LPG prices before low oil reserves start biting and make price rises a necessity.
For me it's a no brainer, and lets face it - if you can build and maintain an Ultima, then you can fit / strip an LPG system in a heartbeat!
Scotty-Boy said:
I've been having this conversation with some of the guys in the office and many were worrying that the Government will eventually whack the tax onto LPG.
I've no doubt that they will start at some point, but with all the posturing and point scoring on cleaner greener solutions it would be a brave Government that tried to do it anytime soon!
At a guess, I reckon there's at least another 5 years worth of low LPG prices before low oil reserves start biting and make price rises a necessity.
For me it's a no brainer, and lets face it - if you can build and maintain an Ultima, then you can fit / strip an LPG system in a heartbeat!
LPG is the same stuff in calor gas bottles at 37 p a litreI've no doubt that they will start at some point, but with all the posturing and point scoring on cleaner greener solutions it would be a brave Government that tried to do it anytime soon!
At a guess, I reckon there's at least another 5 years worth of low LPG prices before low oil reserves start biting and make price rises a necessity.
For me it's a no brainer, and lets face it - if you can build and maintain an Ultima, then you can fit / strip an LPG system in a heartbeat!
;-)
This government sucks!! When I was growing up Derv was pi55 cheap, less than a quarter the price of petrol, why!, coz the only people that bought it were either bus companies or haulage contractors. As soon as us poor motoring schmucks think we can get a steal on this price advantage by investing in Derv powered cars, the government realise they are missing out on an opportunity of bleeding us a bit more so they match the price per gallon of petrol.
As if that wasn't bad enough some pen pushing bureaucrat points out that Derv cars have a better mpg than petrol so will need fewer fill ups. Solution? Jack up the price above petrol to compensate for lack of future revenue.
RANT OVER
Edited by Captain Slog on Wednesday 21st May 10:23
Captain Slog said:
This government sucks!! When I was growing up Derv was pi55 cheap, less than a quarter the price of petrol, why!, coz the only people that bought it were either bus companies or haulage contractors. As soon as us poor motoring schmucks think we can get a steal on this price advantage by investing in Derv powered cars, the government realise they are missing out on an opportunity of bleeding us a bit more so they match the price per gallon of petrol.
As if that wasn't bad enough some pen pushing bureaucrat points out that Derv cars have a better mpg than petrol so will need fewer fill ups. Solution? Jack up the price above petrol to compensate for lack of future revenue.
rip off britain!!!!!!!!!!!!!!!!!! the french are pulling their faces as there diesel is 95 cents a litre, if only. We need to make a stand again the oil companies are taking the piss out of us as well as the goverment.
RANT OVER
Edited by Captain Slog on Wednesday 21st May 10:23
One of my ls1 engines was converted to lpg and it runs sweet as a nut, was done 3-4 years ago iirc. I've also worked on a 5.3 engine with lpg and know of another one being converted. I'd consider lpg for my own use but would use a carb typr manifold just so that I could have a tiny petrol tank for emergency use.
Boosted LS1 said:
One of my ls1 engines was converted to lpg and it runs sweet as a nut, was done 3-4 years ago iirc. I've also worked on a 5.3 engine with lpg and know of another one being converted. I'd consider lpg for my own use but would use a carb typr manifold just so that I could have a tiny petrol tank for emergency use.
why would you have to use a carb manifold?? would you not run petrol and gas injectors next to each other? or even slightly upstream?do you know of anyone running boost on gas yet? i know some guys in the US where doing it to suppliment fuel/reduce intake temps. not sure how effective it was though.
Chris.
chuntington101 said:
Boosted LS1 said:
One of my ls1 engines was converted to lpg and it runs sweet as a nut, was done 3-4 years ago iirc. I've also worked on a 5.3 engine with lpg and know of another one being converted. I'd consider lpg for my own use but would use a carb typr manifold just so that I could have a tiny petrol tank for emergency use.
why would you have to use a carb manifold?? would you not run petrol and gas injectors next to each other? or even slightly upstream?do you know of anyone running boost on gas yet? i know some guys in the US where doing it to suppliment fuel/reduce intake temps. not sure how effective it was though.
Chris.
they are ok
chuntington101 said:
Boosted LS1 said:
One of my ls1 engines was converted to lpg and it runs sweet as a nut, was done 3-4 years ago iirc. I've also worked on a 5.3 engine with lpg and know of another one being converted. I'd consider lpg for my own use but would use a carb typr manifold just so that I could have a tiny petrol tank for emergency use.
why would you have to use a carb manifold?? would you not run petrol and gas injectors next to each other? or even slightly upstream?do you know of anyone running boost on gas yet? i know some guys in the US where doing it to suppliment fuel/reduce intake temps. not sure how effective it was though.
Chris.
ETA, I don't know anybody using boost and lpg but it would be a good marriage
Edited by Boosted LS1 on Thursday 22 May 09:25
Boosted LS1 said:
chuntington101 said:
Boosted LS1 said:
One of my ls1 engines was converted to lpg and it runs sweet as a nut, was done 3-4 years ago iirc. I've also worked on a 5.3 engine with lpg and know of another one being converted. I'd consider lpg for my own use but would use a carb typr manifold just so that I could have a tiny petrol tank for emergency use.
why would you have to use a carb manifold?? would you not run petrol and gas injectors next to each other? or even slightly upstream?do you know of anyone running boost on gas yet? i know some guys in the US where doing it to suppliment fuel/reduce intake temps. not sure how effective it was though.
Chris.
ETA, I don't know anybody using boost and lpg but it would be a good marriage
Edited by Boosted LS1 on Thursday 22 May 09:25
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