Raptor Frame Bending Explained
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From: Cabot, AR
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I couldn't watch past about 1:30. Dude didn't know any terminology, i feel like he was coming up with it as he went. He had trouble just saying the shock was bottoming out.
edit: also have the stuff he was saying in that time frame was retarded. "people are going fast and the suspension is staying compressed" did he forget that it's not a standard f150.
I agree it's probably users fault, but if you are going to defend yourself atleast throw someone in who knows what the hell their talking about
edit: also have the stuff he was saying in that time frame was retarded. "people are going fast and the suspension is staying compressed" did he forget that it's not a standard f150.
I agree it's probably users fault, but if you are going to defend yourself atleast throw someone in who knows what the hell their talking about
Last edited by 06yz250f; Dec 4, 2011 at 07:24 PM.
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From: Burleson, Texas
I couldn't watch past about 1:30. Dude didn't know any terminology, i feel like he was coming up with it as he went. He had trouble just saying the shock was bottoming out.
edit: also have the stuff he was saying in that time frame was retarded. "people are going fast and the suspension is staying compressed" did he forget that it's not a standard f150.
I agree it's probably users fault, but if you are going to defend yourself atleast throw someone in who knows what the hell their talking about
edit: also have the stuff he was saying in that time frame was retarded. "people are going fast and the suspension is staying compressed" did he forget that it's not a standard f150.
I agree it's probably users fault, but if you are going to defend yourself atleast throw someone in who knows what the hell their talking about
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Posts: 17,118
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From: Burleson, Texas
I caught onto his wording right away since I have to deal with engineers at the fighter plant.
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From: Cabot, AR
What would do then?
I saw this on another board and borrowed it as it hits the nail right on the head.
I saw this on another board and borrowed it as it hits the nail right on the head.
I think the point that is being missed by some is that stiffening the frame to prevent it from yielding would not solve the problem. His explanation is clear and accurate in the video. If you are at the top of your shock travel and more jounce is needed to absorb a bump, something has to give.
A good engineer will design the parts to fail gracefully and minimize danger and safety hazards to the driver and passengers. In this case the truck has been designed correctly and it responded in the best possible way to abuse.
And for those of you annoyed that Jamal made it sound like the frame was supposed to bend. Get over it, he is right, properly engineered parts are designed to fail gracefully. Infinite stiffness is never the target.
Essentially once you run out of shock travel there are the following options:
1) break upper shock mounting (leaves user stranded)
2) break lower shock mounting (leaves user stranded)
3) yield frame (takes the energy and safely dissipates it, vehicle and driver unharmed and still mobile)
if it had:
4) extremely stiff overbuilt frame and suspension mounting points (energy would just push the rear of the truck up and over "donkey kick" which could lead to noseplant or forward rollover crash very likely injury or y/death and vehicle write off)
#3 is the best option.
A good engineer will design the parts to fail gracefully and minimize danger and safety hazards to the driver and passengers. In this case the truck has been designed correctly and it responded in the best possible way to abuse.
And for those of you annoyed that Jamal made it sound like the frame was supposed to bend. Get over it, he is right, properly engineered parts are designed to fail gracefully. Infinite stiffness is never the target.
Essentially once you run out of shock travel there are the following options:
1) break upper shock mounting (leaves user stranded)
2) break lower shock mounting (leaves user stranded)
3) yield frame (takes the energy and safely dissipates it, vehicle and driver unharmed and still mobile)
if it had:
4) extremely stiff overbuilt frame and suspension mounting points (energy would just push the rear of the truck up and over "donkey kick" which could lead to noseplant or forward rollover crash very likely injury or y/death and vehicle write off)
#3 is the best option.
The people who buy them think they just got a trophy truck, if you wanna beat on it like it is to keep the frame from bending it would really need to be caged.
There should be an option 5 to that^. A sticker on the window that says just because we slap the word long travel on it doesn't mean that it's a fully capable desert race truck. If people actually knew the limits of it, the problem wouldn't be needed to be addressed as much. It's like what Stealth said, the engineering is all fine, it all comes down to what the owner decides to do with it.
The option 4 has been addressed in any actual purpose built pre-runner. A proper long travel system that has been dialed in can be used to correct the "donkey kick" as that person refers to it. Sure you may shear a shock mount, but in the long run that's a lot easier of a fix than it is to re-straighten a frame.
Just my 2 cents.
There should be an option 5 to that^. A sticker on the window that says just because we slap the word long travel on it doesn't mean that it's a fully capable desert race truck. If people actually knew the limits of it, the problem wouldn't be needed to be addressed as much. It's like what Stealth said, the engineering is all fine, it all comes down to what the owner decides to do with it.
The option 4 has been addressed in any actual purpose built pre-runner. A proper long travel system that has been dialed in can be used to correct the "donkey kick" as that person refers to it. Sure you may shear a shock mount, but in the long run that's a lot easier of a fix than it is to re-straighten a frame.
Just my 2 cents.
Last edited by pizzaman711; Dec 5, 2011 at 12:13 AM.
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From: Blue Ridge Mountains, GA
This is no different than people that modify a stock Lightning to generate more boost, blowing their engine, and then blaming Ford.
