mad_machine (Forum Supporter)
mad_machine (Forum Supporter) GRM+ Memberand MegaDork
7/31/20 11:40 a.m.

The guy is nuts, but this was cool.

 

 

slefain
slefain PowerDork
7/31/20 1:13 p.m.

That was actually fascinating. I grew up in a tire shop, the shot of seating the bead from inside was damn cool. But the shot of pulling the valve stem core was even better, what a physics experiment!

Lof8 - Andy
Lof8 - Andy GRM+ Memberand SuperDork
7/31/20 1:23 p.m.

Very interesting!  I love how the guy left his hands grimey af for the rest of the video. Lol

noddaz
noddaz GRM+ Memberand UltraDork
8/1/20 9:43 a.m.

In reply to slefain :

Yes, nice video!  And watching the drop in pressure inside the tire was fascinating!  I wonder if the fog swirled around the valve stem hole.

GameboyRMH
GameboyRMH GRM+ Memberand MegaDork
8/1/20 6:55 p.m.

That's way more deflection than I was expecting for a low-profile tire at that sort of pressure...and I wasn't even thinking about the lateral deflection. It would be interesting to test again with zero toe, zero camber and both zero toe and camber to see how the lateral deflection changes.

stafford1500
stafford1500 GRM+ Memberand Dork
2/19/21 10:45 a.m.

Several years ago, sme of the team engineers in the NASCAR Truck series decided not to show the camera angle of the LF tire to the driver after seeing the amount of deflection and standing waves in the sidewall at a short track.

Professor_Brap (Forum Supporter)
Professor_Brap (Forum Supporter) UltraDork
2/19/21 11:46 a.m.

In reply to Lof8 - Andy :

Grimy hands are best hands. 

 

Note: there is some awesome footage of 4wd trucks with cameras mounted inside tires deflated to single digits. 

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