The power of LPG
DO THE LPG TEST
TESTING YOUR LPG SYSTEM|
To get an idea of the performance of your LPG system you can do one of the following tests.
The most accurate way of testing the power loss is by rolling road. Because this way of testing is not accessible for everyone, a simple way of testing the car in 3 test runs is given:
Go to a place where the road is more or less flat, a motorway is recommended.
Increase the speed to 80 km (50 mph) and put the car into 4th gear and leave it there!!
Give full throttle and measure the time needed to reach 130 km (80 mph).
To make the measurement more accurate do each run 2 or 3 times and calculate the average for each run.
Typical differences that can be expected between the first and last run:
We tested a RANGE ROVER 3.5 EFI automatic with anIWEMA - LPG system using a 50mm venturi mixer. The results were:
Original on petrol: 18 sec.
On petrol with the mixer installed:18.5 sec
On LPG: 20 sec.
We also tested this car on the rolling road using a 50mm venturi mixer. The losses we measured were 0.9 % at max. toque and 4.6% at max. bhp.
Those results can even be improved by installing an IWEMA-LPG timing advance processor.