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Old 11-16-2013, 05:03 PM   #1
mwjcyber
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High Altitude Turbo

At almost 6000 ft, according to altitude calculators, I'm getting 36 less bhp than someone at sea level. This has left me desiring something...more

Altitude BHP calculator
http://www.wallaceracing.com/braking-hp.php

I've been contemplating NA upgrades versus boost, and have come to the conclusion that with my altitude the best bang for the buck would be with a turbo setup (turbo > supercharger for high altitude).

Ideally I'd like a system that makes ~250whp on 91 octane, can't get 93 at this attitude, and doesn't require other component upgrades such as a clutch, injectors, pump, etc. From what I've read, turbos need to spool more at high altitude to compensate for the thinner air, thus increasing their heat and reducing their performance. I really like the AVO system, for its athletics and proven reliability, but I'm concerned about its performance at my altitude. Would something like the FA20Club 57 trim perform better than the AVO 18/49 at 6000 ft?

Thus my question to the community is what turbo setup do you recommend for my altitude that will provide ~250whp?

Thank you in advance!

Last edited by mwjcyber; 11-16-2013 at 05:15 PM.
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