compression numbers and Altitude

[natedawg]

just want to know how much of a diffrance it really makes i have a 1975 85 horse that has 100-105 on all 4 cylinders and im at about 7000 ft how much of a number diff. would i see if i was at sea level?

Nathan

 

[ezeke]

Re: compression numbers and Altitude

+/- 125 psi at sea level.

I had a formula in Excel, but I can't find it, Here's a link:

http://en.wikipedia.org/wiki/Atmospheric_pressure

 

[natedawg]

Re: compression numbers and Altitude

thats cool so i take it i have a good motor then8)