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Originally Posted by EQ Tuning
Sperry,
I do believe that the Davis number was in significantly hotter weather than the Reno number, so that certainly accounts for some of it.
On the original tune, Cody's car deffinately lost more than 10whp going to elevation, but after some remote tuning I was able to close the gap a bit. Of course it still looses some power at elevation, but its not more optimized for the each condition bringing the power variance down significantly.
The other thing to remember is that a 10whp difference on a low reading dyno is equivalent to a significantly larger variance on a higher reading dyno. So in fact, you could most likely feel a 10whp difference on a ~200whp car.
Thanks
-- Ed
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The temperature difference makes sense. If Cody's at 215-220 awhp on a cool sea level day, that makes the 200 awhp at altitude on an optimized map very believeable... and pretty impressive. I was making 198 awhp on my car w/ the 2.0L and stock turbo... 'course my map was designed to run on the stock boost curve for STX, then we bumped the boost a bit and got to 198.
Will Cody have issues if he drives at sea level on a map optimized for altitude? What sort of tweaks did you used to counter the altitude? A touch more boost and timing? Fueling changes?