Last march I was ecstatic at the performance of autogas compared to petrol. The idling was smoother, the torque at low revs incredible and the full throttle performance a bit less than that. But the economy was great -- I was saving 1-1,500 a week for a 100% improvement in my Php/km cost of mobility.
Its june now, and after a lot of tinkering with my ignition timing and tuning the regulator (marunong na ako - nagsawa na sa akin yung mga tga naiads!) I now have it tuned the way I like it. Strong and nimble! The Ignition timing has been advanced an additional 5 degrees at static, and lighter centrifugal springs gives full advance to about +25 degrees at around 3,000 rpm. It now runs like a little austin mini!
I found the weight of the tank had altered the handling capabilities of the Pride, which was not good at stock anyway. So I found Kayaba Excel G gas shocks for the rear which has given a really firm ride, although non-LPG Prides report that the gas shock are extremely hard for comfort. I guess the extra weight balanced the gas shock perfectly.
My economy has suffered a bit from all this performance tuning but I can still get 300-350 kms average from a full 60-liter tank- so I'm perfectly happy!
I am now mapping out a strategy for my son's 1985 Mercedes 200 petrol Type W123, which I plan to install with a stand-alone LPG vapor fuel injection system with Lambda feedback installed. I will start another thread on that when the parts arrive.
As I thought, LPG has proven better than I expected, in all aspects. A real no-brainer right?