How Hot Weather Wrecks Your Car's Performance: 2013 6r80 Mustang GT

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In this video, Alex tests the same Ford Mustang under different weather conditions to showcase the significant impact of air density on performance. From the cool 70-degree days to the sweltering 95-plus-degree heat, you'll see how just a few degrees can change everything. 🌡️

Whether you're a seasoned racer or just getting started, this video is packed with valuable information and practical insights. You'll understand why air density and weather conditions matter so much when pushing your car to its limits. So, don't assume everyone knows this—join us, learn, and let's have some fun!

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Thanks for watching, and let's dive into the science of speed! 🌬️🔧

#FordSlowdown #CarPerformance #DraggyResults #DraggyTest #SummerCarTest

CHAPTERS:
0:38 - Why Are We Here
3:19 - Why Are We Doing This
5:37 - First Pass
5:58 - Second Pass
6:29 - Final Pass

[BADGT-BADATX]

Alex thats why its good for you to make videos to inform those who want to know but embarrassed to ask. Shop class was so informative back in our day. They should really bring that back.

[Mangobrain]

Fuck yeah. S197 video drops on a slow day at work.

[davidhale]

This series is so relatable. I'm an old fox guy here looking to go coyote one day and this is seemingly the path of least resistance to go have fun . Thanks, Alex.

[Mitchellms]

This is why when we fly on a hot day we have to be super cognizant of our density altitude. One day you can clear trees with no problem loaded up and the next day you would fly right into them with the same load. The engines make way less power on hot days and the air density of so much thinner. The wing physically doesn’t have as much air to create the same amount of lift so your ground speed has to go up to get the same wing loading and get the airplane flying and performing as it would on a cool day. Another thing on hot days same as airplanes and cars airplanes cannot pull timing like a car can so if you’re not careful you’ll get detonation and that can cause big problems very quickly and that’s another reason why Airplanes run 100 octane fuel. Even though most aircraft engines are extremely low compression and things can get so hot on a hot day. Detonation will still occur in. The timing is always extremely conservative on those engines.

[t.j.soccorsi]

great and accurate info here! I noticed about the same with my car at the track. It went 12.7 right off the road with no cool down, 85 degree temp, and 12.4 at night with around 68 degree temps..

[tylerwilkey]

Proving again that nobody else on this platform is doing it better and offering more information than you. Keep it up

[ShizawnSanders]

This is where a stock air box or a fully enclosed one really matters. If your IAT'S suck on the rip your 60ft-1/8th mile sucks and kills the run. Your mph is only down 2mph but because the IAT'S suck so bad on the dig and its not able to make power there the ET is suffering by around 4 tenths.

[dakotajones]

This is why I bought the Steeda intake it only gets hot when sitting and as soon as I start moving IATs drop to basically ambient. Yah hot air is no bueno. Great video

[AndrewBaker]

I experienced this first hand.. went from my local track with good weather and DA to a track in Washington state.. 90° and 5000 DA. Lost half a second and almost 6mph in the 1/8

[maximusvonce]

Thats why you need a massive oversized radiator and biggest tranny cooler you can find and high efficiency fans pulling tons of air, and oversized intercooler, and low temp T-Stat and e85 and you're GOLDEN.

[sn_mustang_garage]

Gotta love the BeeLine. Did so many runs out there. I would go to Moroso (formerly PBIR) from 1994 to 2004 during the SN95 days.

[OneNationUnderGod.]

Alex, you should do a video explaining how a "Cold air intake" pulls in more air due to the conical filter shape. So many "Car guys" in my area see a "Cold air intake" on customers cars or at car shows and say "Nice hot air intake". Some of these people seriously think that if there ECT is 200° then their IAT will also be 200°. Alot of people dont understand, how any of that works, mostly because they never actually watched live data, they just want to act like they know something that somebody else doesnt.

[bradbradley]

Nhra records were set in Dallas back in the 90’s because they were run late Oct-into November.
Then they were reset in Houston in the early spring. Why??? Air was best at Ennis when they ran there then again here at HRP. Summer time I saw ET’s go up a half second…not much oxygen in the air in summer around here…thank you for the video…

[Runningmancs]

Cool video. Sure everyone “knows” this but when you see the data like this it helps more people to have a deeper understanding of the issue.

[helpdesk]

Yeah, thanks, I never knew this. I was just a weekend street racer back when Philly had lots of empty roads (on weekends). But like you said the north doesn't have a long summer. Atco or Englishtown in the spring and fall was the place to be but in July and August the beach/ swimming pool was the better choice. Man that is a nice mustang, I will need to look thru your video catalog and find the episode about this Mustang. Thanks for the education!

[marcasswellbmd]

This is all soo true.. My absolute favorite time to bring my car out is when it's 55 degrees' outside and a fresh tank of 93.. There's been times where my car surprised me and felt savage and then other times when it just feels normal.. And the average person doesn't understand it.. Anyway a friend of mine who lives down in Florida has a 2022 turbo chevy trailblazer and it went into limp mode down there on Saturday.. He called me up scared saying (low power mode) popped up on his dash.. So right away I start googling and I find a service bulletin saying the ECU needs to be flashed and updated.. I am betting because they jam the cats in so close to the motor's now that cat over temp is kicking in.. But anyway yeah it's disgusting hot in south Jersey so I know it's way worse down there..

[TheFreshwater]

have you ever done a log showing timing vs cylinder head temp? I would love to see a video that shows timing based on different temperature ranges

[erikmohr]

Good video. I race up in Norwalk OH. On a Weds night we might start time trials at about 6. By the time eliminations start around 8 the DA often goes down a lot. Makes it difficult to establish a dial in time when bracket racing.

[mattoliver]

Good video. I've been aware of this for a while. Learned it at a car show. A 64 Malibu, with boost, only made in the 970's rwhp. The previous year, it made in the 1030's. The 970's year it was mid to upper 90's for air temps compared to the previous year of temps in the low 80's. Car chassis dyno, so how well it was calibrated is unknown.

[nik_nair]

Mustang content in the morning is the best