Wat!

Calm down there punchy.

lol yeaa im sorry guys i agree lol it was a lil retardid how i acted when somone was just asking questions so sorry

Simon is a good guy who has been tuning forever, back with hondas to mostly EVO's now..

So much hostility :(

Any map that comes pre loaded on the Cobb AP is simply a base map. It will react diferently on every car. Our elevation is high but it is comparable to saltlake city where The Cobb maps are created. I had a custom tune made for my AP by a local named Cory. From what he said Ed is the one who taught him how to tune and he did a pretty bang up job.

I head west quite often so we purposely tuned my car to run a little rich to avoid the posibility of running lean in 0 evelation. Atmospheric pressure in Reno Vs Sac is a pretty big differance.

Ed's going to make a realtime map for me to run when driving hard at sea level when I visit his shop in Fairfield in a couple weeks. He said it's not necessary, but it's good to dial back the timing and double check the AFR's if you are tuned for 5K feet, like I am.

When I asked about it, he said it's actually safer to get tuned at sea level and drive hard at altitude as apposed to getting tuned at elevation and driving hard at sea level...primarily because of all of the timing you can run up here.

You about nailed it. Since I didn't have the opportunity to get tuned at sea level I had to do the next best thing which is some timing tweaks and rich AFR. I don't plan on running it too hard down there. My main reason for going is Warped tour SF. :)

I'd say about 10-15% of my driving is done at sea level on the hi elevation map but I rarely get on it. If you were tuned up here and then went to a track day without adjusting the tune, that's when bad things can happen, I think. But you make a good point. A wise tuner will design a map that won't kill the car the first time you try to pass someone at sea level.

The biggest problem IMHO with tuning at altitude is when the intake calibration table is correct.

If you are running anything other than the stock intake or one there is a COBB map for, you are playing with fire if you don't spend a good amount of time adjusting that table which likely requires going up and down altitude.

At least some tuners do a lot of their fuel work in the A/F tables to get the O2 numbers they want, and if you have an improper intake calibration, you can get into real trouble when you change altitude because the barometric tables don't know that the intake calibration is wrong.

Thanks man!:D