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- เผยแพร่เมื่อ 29 ม.ค. 2025
- Discuss Density altitude and how it effects your performance metrics
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Oh man as a pilot I'm so pleasantly surprised that you (or anyone in the car community) did a video on density altitude haha. It's such a big factor to engine performance that no one seems to really talk about in the car realm. Anyways, love all your videos man, I'm trading in my 17 330i for a 18 340i next week, can't wait. Gonna slap bm3 stage 1 right when I get home from the dealer, I'm ready for the b58 power!
And sidenote, I guess if people are super OCD about how their car is gonna perform that day, just check the ATIS of your nearest airport.
I no Atleast with series drag racers and no prep guys they care a lot about da not so much I think with the drift guys and time attack guys
love the vid, can we get some more driving vids of the setup🤩
Coming soon
Well thought of and explained topic Kevin 🧤
Awesome video as always!
Make a video on your wheel and tire set up
Will do
Thank you for this very informative video. I have a question on my used Ford Escape that I recently purchased. I noticed that it is having check engine for the O2, MAF, Throttle and Cam sensors whenever we use it in our area which has a very high elevation. I suspect this is because of the high elevation. What do you think is the best thing to do besides cleaning the sensors and Throttle body since this is an old car (2008)? Thank you
Sensors may be bad
5:05 wtf with that song lol
So my DA is 4623 on dragy and I ran a 3.68 0 to 60 . At a DA of 0 would you expect much of a difference?
Yes
3.4 otw
So when you see your altitude and the DA on the draggy do you add them together use one or the other?? How does it work??
Density altitude is what matters the most. You can have the same density altitude at different elevations and the car will perform similarly, but if you're at the same elevation with different density altitudes then the car will perform differently.
So it’s currently 412 air density here. That’s really good then ?
Negative DA like -1000 to -3000 is possible
@ yeah it’s -2500 right now lol
Kern, I have a question that I am hoping you or someone can make sense of. My current elevation is 4640. Our current Density Altitude is going as high as 7,800, (+3,160 feet). I have an understanding of Density Altitude and IAW scientific Articles of weather, sea level is 0.0764 Air Density. 4640 is 0.0665 Air Density. And 7800 is 0.0605 Air Density. From 4640 (0.0665) to 7800 (0.0605) is in theory, a -9.023% reduction of fuel due to elevation (density altitude of 7800). // If I subtracted 4640 from 7800, that gives me 3,160. Some people say add or subtract fuel by 3% for every 1000 feet change of elevation. 3160 divided by 1000 equals 3.16 (or 3.16% of fuel change). Is there a way to prove or disprove one of these methods of fuel adjustments? I also understand a car or motorcycle should make automatic fueling adjustments according to elevation. But an elevation of 4640 with a density of altitude of 7,800 is lacking more air than at 4640. And this is not being factored into the ECU adjustments to maintain proper AFR. Am I wrong? Or am I missing something??
There's no need to do all that. Just check a local stations da calculation. I won't be that different.