[BayM340i]

Hey everyone,

Has anyone had experience running a tune at around sea level and moving/driving at high altitude? I'll be road tripping from the bay area to Pikes Peak (~15,000ft elevation) and am curious to know if I should flash back to stock beforehand. I'm running a stage 2 tune from Mission Performance right now.

[xacoffeemx]

Originally Posted by BayM340i

Hey everyone,

Has anyone had experience running a tune at around sea level and moving/driving at high altitude? I'll be road tripping from the bay area to Pikes Peak (~15,000ft elevation) and am curious to know if I should flash back to stock beforehand. I'm running a stage 2 tune from Mission Performance right now.

I don't think the tune will be much of an issue because it will adjust timing, but I would put less E85 into the car if you are currently blending E85 with your 91oct

I sometimes have car having a hard time cranking with about 4 gallons of E85 at around <60F nights in socal. I assume this would only be worse in higher altitude and possibly even colder weather.