[Formulajones]

Originally Posted by Stan Weiss

X2. But remember cranking compression on the same engine will vary. It is less in Denver than it is at sea level.

Stan

Isn't elevation figured into the equation? It should be.

I'd use a formula that includes it if that's what you're looking for. Or better yet, just figure it at sea level then you'll know it's fine everywhere.

[Stan Weiss]

Originally Posted by Formulajones

Isn't elevation figured into the equation? It should be.

I'd use a formula that includes it if that's what you're looking for. Or better yet, just figure it at sea level then you'll know it's fine everywhere.

Yes it is. But if you don't leave the mountain then you are leaving a lot on the table by tuning for sea level.

Stan

[Formulajones]

Originally Posted by Stan Weiss

Yes it is. But if you don't leave the mountain then you are leaving a lot on the table by tuning for sea level.

Stan

I can't imagine not leaving the mountain.

Shucks around here I can't even drive 20 miles in any direction without the elevation changing one way or the other. I keep the sea level tunes in the cars and it's been fine up here. You lose power up here regardless, about 3% for every 1000 feet gained. I can lean them out a tad and pick up a pinch, and maybe add another couple degrees of timing if I wanted up here, but I don't want to fiddle with them every time I drive down to Phoenix. Not real practical on our daily drivers.