Hi Jclay,
What like this -
Rob James, posts on here from time to more often on TR Reg forum has LPG on his, this is lifted from there, I hope you don't mind Rob [:I]-
<font color="red">Overview of improvement: - Single point LPG
Relative merits: - Reduced emissions and reduced fuel costs
Observations: - The spare wheel well was removed and a flat floor welded in its place. An 80 litre LPG tank was suspended where the wheel well had been and the fuel line ran along the nearside to a vapourisor mounted on the nearside inner wing. A venturi system was placed just before the inlet to the EFI plenum which is where the LPG was drawn in (fueling was controlled by an ECU that monitored airflow into the plenum and the readings from the EFI Lambda sensor). The ECU itself was attached to the N/S inner wing and always looked like an after thought.
I loved the fact that my fuel bill dropped by 40% and because of the mileage I was doing, this paid for the installation in less than two years. However, there were two downsides to a single point LPG system; firstly, the venturi used to jet the fuel into the plenum considerably restricted airflow into the plenum which in turn reduced engine performance on both petrol and LPG. Secondly, as the LPG was mixed with the air in the plenum, there were occasional incidents of the LPG igniting before it entered the combustion chambers which produced lots of noise and smoke and was pretty scary!
Summary: - The backfires never caused any damage but they were clearly not safe. I pocketed the fuel savings after the second year to create a fund to upgrade to multi point LPG.
Summary scoring
Safety/security N/A
Reliability N/A
Performance N/A
Comfort/aesthetics N/A
Cost 4</font id="red">
Cheers John
LIVE LIFE A QUARTER OF A MILE AT A TIME!
1976 Speke FHC Beauty Now with an overdrive conversion
1979 3.5 FHC(STATUS PENDING!!)
1982 2.0 DHC NOW A 4.6, BUILT NOT BROUGHT !!!!
