100+ MPH issues

[WTX]

Recently my truck has a very serious issue when I’m going over 100mph. It sways side to side violently under heavy throttle from 98 mph and up. If I ease into the throttle it’s smooth but under 3/4+ throttle it’s pretty sketchy.

When I pass on 2 lane roads I usually give it all it’s got to get around people. Yesterday morning I was running with a lightning and had to back out once it started swaying. If I put the shocks into sport mode it’s less severe but still present.

Only mods I have is RPG 1.5” collars, method 0 offset wheels and toyo tires. I have 43k miles on it and not abused off-road.

Thoughts?

 

[MurderedOutSVT]

97 is the limit

 

[WTX]

97 is the limit

Haha. That’s where I set my cruise control, I need a bit more.

 

[smurfslayer]

It sways side to side violently under heavy throttle from 98 mph and up

Only mods I have is RPG 1.5” collars, method 0 offset wheels and toyo tires

I’ll bet once you lose the collars, your 100mph+ adventures will become less dramatic.

 

[HORN HIGH ACES]

Recently my truck has a very serious issue when I’m going over 100mph. It sways side to side violently under heavy throttle from 98 mph and up. If I ease into the throttle it’s smooth but under 3/4+ throttle it’s pretty sketchy.

When I pass on 2 lane roads I usually give it all it’s got to get around people. Yesterday morning I was running with a lightning and had to back out once it started swaying. If I put the shocks into sport mode it’s less severe but still present.

Only mods I have is RPG 1.5” collars, method 0 offset wheels and toyo tires. I have 43k miles on it and not abused off-road.

Thoughts?

Recently my truck has a very serious issue when I’m going over 100mph. It sways side to side violently under heavy throttle from 98 mph and up. If I ease into the throttle it’s smooth but under 3/4+ throttle it’s pretty sketchy.

When I pass on 2 lane roads I usually give it all it’s got to get around people. Yesterday morning I was running with a lightning and had to back out once it started swaying. If I put the shocks into sport mode it’s less severe but still present.

Only mods I have is RPG 1.5” collars, method 0 offset wheels and toyo tires. I have 43k miles on it and not abused off-road.

Thoughts?

Sounds very similar to this thread.

https://www.fordraptorforum.com/threads/unstable-wobbling-at-high-speed-under-hard-accel.99231/

 

[WTX]

Thank you! And yes I believe that’s it.

 

[So-Cal-Al-52]

What is your hub bore on your Methods? It does sound very similar to the thread above.

 

[smurfslayer]

Sounds very similar to this thread.

https://www.fordraptorforum.com/threads/unstable-wobbling-at-high-speed-under-hard-accel.99231/

forgot about that one, good catch!