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View Full Version : LPG Systems: BRC versus Prins Systems


eurosysytem0
02-10-2011, 09:21 AM
TT.
I have a previous thread about converting an 2005 X7 with 350 MCX engine from liquid fuel (Petrol/gas) to an Liquid Petroleum Gas (LPG) system.
Research in Uk appears to narrow it down to a dual fuel system with LPG as the main fuel and petrol as the back-up. The petrol is used to get engine to working temperature then LPG switches in as the main fuel. (The purpose of the petrol start is to avoid and freezing problems with the LPG.

The choices appear to be either a BRC system of a Prins system- both multi point fuel injection, both with their own engine management modules. The BRC system has plastic injectors where as the Prinz has metal injectors. Both involve removing existing fuel tank for new LPG cylinder and the provision on a small (5 gallon) petrol tank.
There is little price differential

Question: Do any TT members have a view on either/both systems?

Do any UK TT members have knowledge of any lightweight LPG tank suppliers?

eurosysytem0
02-10-2011, 12:59 PM
just to get on new posts

mastercraft210
02-10-2011, 03:54 PM
We have used both systems in the netherlands.The prince and easyjet systems give a lot off trouble with them.
We now use the brc system for 3 year know without any problems.We get more torque out off the engine on lpg then on standard petrol.The system automaticly switch to petrol when the lpg tanks are empty or the rpm is under the limited range.You will not notice the switch from lpg to petrol.There only sounds peep so you know it is on petrol that moment.Our guy makes a lot of work to get the system in the boats.It is not thrown in like other systems.He know is on holiday but he is on tt so when he is back he shall read this topic.

I don't know if it is aloud but you can see some photos on our site.

http://www.tb-boten.nl/index.php?option=com_content&view=article&id=48&Itemid=27

eurosysytem0
02-15-2011, 07:44 AM
We have used both systems in the netherlands.The prince and easyjet systems give a lot off trouble with them.
We now use the brc system for 3 year know without any problems.We get more torque out off the engine on lpg then on standard petrol.The system automaticly switch to petrol when the lpg tanks are empty or the rpm is under the limited range.You will not notice the switch from lpg to petrol.There only sounds peep so you know it is on petrol that moment.Our guy makes a lot of work to get the system in the boats.It is not thrown in like other systems.He know is on holiday but he is on tt so when he is back he shall read this topic.

I don't know if it is aloud but you can see some photos on our site.

http://www.tb-boten.nl/index.php?option=com_content&view=article&id=48&Itemid=27
Thanks for the input. Its interesting that you favour the BRC whereas a lot of the feedback Ive been getting (not on TT where there has been little response) appears to say Prins is better and more economical on fuel. Further advice from your friend would be appreciated.
regards

eurosysytem0
02-15-2011, 09:41 AM
any other views out there