top speed run 3000gt sl

[sketch]

I'm not sure I agree with elavation change effecting Compression... Effect power from less oxygen in the air yes but how much air the engine can mechanically compress im not sure.... But before i disagree im going to try and read about it because that would make a very interesting read.

higher elevation == thinner air.
QED

[j2k4]

Slightly OT, but I picked-up an issue of Motor Trend in the Dr's office the other day, and in the "tests-to-date" table in the back, it said the 392 Challenger will do a buck-eighty.

Don't think I'd want to be in one of them going that fast - bet it'd be kinda floaty...

[J. Fast]

higher elevation == thinner air.
QED

Wallace Racing: Dynamic Compression Ratio Calculator

Enter in your engine specs and only change the elevation. Dynamic cranking pressure will be different from 10ft above seal level to 6000ft above sea level. The difference is about 25-30%.

You use a calc like this when you take an engine from sea level to elevation. Example would be racing at Pikes Peak Hill Climb. My dynamic cranking pressure number is 102psi at the top of Pikes Peak. 120psi where I reside near Denver, and 160psi in WV where my grandparents reside.

Only two factors that will affect dynamic cranking pressure are changing elevation (DA) and valve overlap. Elevation will be obvious when you use the calculator. If you modify the valve open or close position with a cam or adjustable cam gears you can raise or lower the dynamic cranking pressure as well.

[Blackmount]

higher elevation == thinner air.
QED

u will see i retracted my statement right about when u posted this.

[Boomer3000]

Why is this thread still going lol?

[sketch]

u will see i retracted my statement right about when u posted this.

yeah, I was in chat when you brought it up in there, too

Why is this thread still going lol?

can't stop the signal