Discussion
I was going to get my x5 4.6, and xk8 converted by Gas Power UK in Exeter as they were recommended to me. I liked what these guys had to say and i was warned by people that there are a lot of rogues fitting LPG systems. Go with somebody who have done installs on similar cars and check how big a tank they can install, bear in mind if your getting 15mpg around town on petrol you will only get 11mpg on LPG. If they cant get a big enough tank in youll be filling it up every five minutes.
If your not keeping the car for three years or more, no cost saving , spend the money on mods and go faster.
If your not keeping the car for three years or more, no cost saving , spend the money on mods and go faster.
Have been looking in to this myself.
There was a HSV VE GTS LPG conversion at the Melbourne Motor Show with liquid injection. The system is made in Italy and apparently improves performance. Liquid injection must have a major cooling effect on intake temps and should give better results with FI than NA.
Haven't heard any more about HSV's own LS3 LPG project though.
article from Drive
Anyone know if it's going into production?
I was looking at adding an extra fuel tank to give the range I need, but if this is viable, it could be a suitable option. Apparently twice the cost of vapour injection though.
There was a HSV VE GTS LPG conversion at the Melbourne Motor Show with liquid injection. The system is made in Italy and apparently improves performance. Liquid injection must have a major cooling effect on intake temps and should give better results with FI than NA.
Haven't heard any more about HSV's own LS3 LPG project though.
article from Drive
Anyone know if it's going into production?
I was looking at adding an extra fuel tank to give the range I need, but if this is viable, it could be a suitable option. Apparently twice the cost of vapour injection though.
I looked at LPG and was told that cars with plastic inlet manifolds are not a good bet.
I guess the finished result will be down to the quality of the parts used and then how good the fitter is?
Where are you thinking of putting the filler? Not inside the boot as I have seen as this is non-compliant I think.
Have you checked that your insurance company are OK with it - this counts as another modification.
You do need a compliance certificate with the install.
Lastly, you won’t aloud in the channel tunnel (no great loss)
I guess the finished result will be down to the quality of the parts used and then how good the fitter is?
Where are you thinking of putting the filler? Not inside the boot as I have seen as this is non-compliant I think.
Have you checked that your insurance company are OK with it - this counts as another modification.
You do need a compliance certificate with the install.
Lastly, you won’t aloud in the channel tunnel (no great loss)
wormus said:
Have a look at nitrous instead, it's cheaper to fit and more effective.
Bottles are lighter too 
Liquid propane (108RON and cheaper than race fuel) with nitrous at 12.5:1 compression, sounds like an interesting recipe...
NOx emissions might be a bit high though, and stock internals probably wouldn't last long, assuming the drive train could cope.
MrsTrailermasher said:
(... can I get Nitrous fitted to my truck??? 
)
Yes! Nitrous works well with diesel (stronger block helps). Could add a shot of propane too!)Black VXR said:
I looked at LPG and was told that cars with plastic inlet manifolds are not a good bet.
Single point injection can suffer with blow back, melting/exploding plastic manifolds.Sequential multi point vapour injection can work with plastic manifolds, but personally I still would not recommend it. Cam overlap must be minimal.
Sequential multi point liquid injection doesn't displace the intake air, so blow back (virtually) eliminated and is the safest bet with plastic manifolds. Some systems use the petrol injectors for the LPG injection which will stop the injectors gumming up, this will cause ECU problems on the VE models though.
Just heard back from Australian LPG Warehouse, who did the GTS at the MMS, they are happy to pass on the ECU connection details, they've done LS2 and LS3 VE's.
Bonnie and Clyde said:
MrsTrailermasher said:
(... can I get Nitrous fitted to my truck??? )
Trailermasher said:)Yes! Nitrous works well with diesel (stronger block helps). Could add a shot of propane too!
Edited by Bonnie and Clyde on Wednesday 15th July 13:58
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