Mods (or KTuner) for better high elevation performance - Drive Accord Honda Forums | radio-pro.ru
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post #1 of 2 Old 01-14-2018, 03:20 AM Thread Starter
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Mods (or KTuner) for better high elevation performance

Hi folks,

I moved from VA to northeast AZ (Chinle) beginning of December. I spent a year in this area in 2011-12, again 2013-14 and guess what? I guess I love the rez cause I keep coming back.

Seems that it's pretty universally accepted there is 3% loss of HP for every 1000 ft rise in elevation, meaning I am loosing 47.5 hp, turning my 278 hp J35 into a 230 hp engine.

To be honest, it feels like I have lost 50+ hp. The engine feels so very anemic. It is much worse at high rpm. Judging distance here is sort of a challenge and passing gets sort of scary.

Aside from FI, would anything help to remedy this? I have thought about KTuner for a long while. I really don't give a crap about throttle response or shift map. I am curious if there is anyway to improve the WOT power, as that's my only issue with the car (i.e., at high elevation).

Thoughts?

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post #2 of 2 Old 01-14-2018, 08:09 AM
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location: Williamsburg, VA
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Has your mileage gone up as well? The ECU should have adjusted the fuel so the vehicle is running leaner. Short of cramming more air into the cylinder with a turbo or s/c I'm not sure what the answer would be.

I moved from Idaho to Williamsburg, VA and my mpg dropped considerably. I had a supercharged 3.8L 6 cylinder. I never realized elevation had such an impact.


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