TUNDRA FRAME VS. F-150 LOOOOOOOK

That video is grossly misnamed. They are testing frame stiffness, not frame strength. This result goes hand-in-hand with the bed motion video. They're really not telling us anything worthwhile here. Stiffness and strength are not the same thing. If they held both by the spring mounts (they did on the Ford chassis, but NOT the Toyota) and loaded both until they yielded and didn't come back to the same relaxed position, that video might have been useful.

Disclaimer: I don't want to come across as "Detroit product suck," I just want to point out this video isn't very objective. I own a 2002 Toyota Tacoma and I'm leasing a 2006 F150. I like both trucks.

Kevin
 
Kiggly said:
That video is grossly misnamed. They are testing frame stiffness, not frame strength. This result goes hand-in-hand with the bed motion video. They're really not telling us anything worthwhile here. Stiffness and strength are not the same thing. If they held both by the spring mounts (they did on the Ford chassis, but NOT the Toyota) and loaded both until they yielded and didn't come back to the same relaxed position, that video might have been useful.

Disclaimer: I don't want to come across as "Detroit product suck," I just want to point out this video isn't very objective. I own a 2002 Toyota Tacoma and I'm leasing a 2006 F150. I like both trucks.

Kevin
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But, isn't everything about making the frame stiffer? On pretty much ANYTHING? I can see what you're saying, but if you think about it, if they put say 1500lbs, would that frame even hold up :dontknow: But, like everything. Time will tell how the Tundra holds up
 
dirtybird said:
Look because it isn't the same video :stfu: Idiots I tell you, idiots!
Click to expand...
Ok, so I was wrong. I can admit it. There was a good chance that was going to happen since I couldn't see it from work. Cool vid.

As for the idiot comment....coming from you of all people.....well....we'll let that go this time. ;) :lol:
 
SSpdDmon said:
Ok, so I was wrong. I can admit it. There was a good chance that was going to happen since I couldn't see it from work. Cool vid.

As for the idiot comment....coming from you of all people.....well....we'll let that go this time. ;) :lol:
Click to expand...

:roll: Nice
 
dirtybird said:
But, isn't everything about making the frame stiffer? On pretty much ANYTHING? I can see what you're saying, but if you think about it, if they put say 1500lbs, would that frame even hold up :dontknow: But, like everything. Time will tell how the Tundra holds up
Click to expand...

Stiffer frames are not particularly a goal on trucks. Some stiffness ranges get you in real trouble with noise, vibration, and harshness (NVH) on things like standard road seam spacings and bumps. You don't want the system to be the same natural frequency as the input or it will get into resonance and bounce all over the place. If your system's natural frequency is lower than the input, it will attenuate the input signal (you won't feel the bumps as much). This is the entire concept of engine isolation/rubber mounts. That system has a very low natural frequency and the high frequency engine vibrations don't feed through to the chassis.

I'm not claiming I know any design goals for either truck, just throwing out some possibilities.

Also, normal automotive steels can range from 25ksi to 70ksi yield strength. We don't know what either is made from. Yield strength numbers (within one material) mean how far it can stretch before it is permanently deformed.

Kevin
 
Kiggly said:
Stiffer frames are not particularly a goal on trucks. Some stiffness ranges get you in real trouble with noise, vibration, and harshness (NVH) on things like standard road seam spacings and bumps. You don't want the system to be the same natural frequency as the input or it will get into resonance and bounce all over the place. If your system's natural frequency is lower than the input, it will attenuate the input signal (you won't feel the bumps as much). This is the entire concept of engine isolation/rubber mounts. That system has a very low natural frequency and the high frequency engine vibrations don't feed through to the chassis.

I'm not claiming I know any design goals for either truck, just throwing out some possibilities.

Also, normal automotive steels can range from 25ksi to 70ksi yield strength. We don't know what either is made from. Yield strength numbers (within one material) mean how far it can stretch before it is permanently deformed.

Kevin
Click to expand...

Good post :deal: :bigthumb:
 
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