Anyone have a ballpark figure of how much the timing can be advanced if running a car at 3500 ft elevation?
- posted
16 years ago
Anyone have a ballpark figure of how much the timing can be advanced if running a car at 3500 ft elevation?
Maybe this will help:
I don't remember screwing with the timing as much as the mixture, but higher altitudes used higher compression heads in the real old stuff so try 2 deg. at a time until it pings then back off one degree at a time until it's happy.
His car is from California.... It will never be happy Jeff
"oldcarfart" wrote...
Alex Magdaleno wrote:
Thanks for the replies. I'm only going to make one or at most two runs, so I can't experiment much.
Ya, I'm sure there will always be a little wine
Jim Bartley on PEI
Alex, when I was a kid living in Reno (4450ft), and we'd visit down to Sacramento (25ft), sometimes the altitude change so advanced the timing the starter wouldn't turn the engine. So we'd have to retard. I'm guessing a baseline of 1 degree per thousand feet is the way it worked the best. It has to do with barometric pressure. Kind of like tempearture decreases about 3.5 degrees per thousand feet of altitude gain. And it anybody thinks I'm wrong, just let them quiver with enjoyment, but I don't want hear about it.
MotorsForum website is not affiliated with any of the manufacturers or service providers discussed here. All logos and trade names are the property of their respective owners.