MrBlaaaaah

So, I have begun the design stages for a race car for the Pikes Peak International Hill Climb. Being half way through my frame design, I needed to chose a motor. Upon deciding on the Honda B16 or B18 block, with a turbo setup, I slowly come to the conclusion that I don't know that much about tuning for high altitude. That is, 9,000 to 14,000 feet. So, I extend a question to anyone here.

What do you do differently when you tune for a higher altitude? Even if it's for 3,000 feet instead of sea level, or 6,000 feet instead of sea level.


The other stuff probably fits better in a different sub forum, so nevermind on that.

wantboost

iTrader: (2)

Any good EMS with barometric compensation will be able to take the tune to any altitude, provided it was tuned properly in the first place

Dark_Teg

Our Hondas use a speed density system that does not compensate for altitude. I was running a perfect 14.7 @ idle in Dallas and a 14.1 @ idle in Odessa. The corrected altitude is easily 3800ft apart. Tune it for sea level and just run a little rich at altitude is what I would do.

wantboost

iTrader: (2)

stock ecu based tuning, this is true

things like the aem have baro correction

Turbo-LS

iTrader: (4)

Building a pikes peak car should be looking at motec and nothing else.