Quote Originally Posted by toho View Post
*ghosthunter, I'm not sure who posted it here but somewhere I read that if you're going to a place with a higher altitude i.e. Baguio or Tagaytay and using an "open loop" system, adjustment of the fuel/air mixture is necessary to attain normal engine performance. However, with an 'SGI system" no adjustment is necessary. Is this correct?

Since I often go to Tagaytay on weekends will it then follow that it is best I use an "SGI system" if I am not inclined to do any adjustment before each trip? More so with my wife who has no ability to do it.

I am really grateful to all the info I am getting from this thread. Thanks to all, ghosthunter, bigmike, redman7, etc....
Well, Tagyatay isn't that high enough to make it necessary to adjust the a/f flow of the LPG kit. My car works well in Tagaytay and no lack of power to climb up even the steep roads in the area.

The only place I really felt the drop in power was when I almost reached Baguio City. But on a counter-point, even a modern EFi gasoline fed engine would have suffered similar loss of power simply due to altitude factors as well. The result in my car was the engine was running a touch too rich on LPG. The solution was simply to switch over to gasoline while I was in Baguio.