Bump Steer

UWSkier · 10-06-2006, 01:24 PM

Going on my 3rd month with the Titan and loving it more every time I start it up, especially now that gas has dropped to $2.15 in these parts.

My only beef with it is the front end. It has excessive bump steer. What this means is, when the front end hits a bump in a certain way, the wheel gets jerked from the impact. This is typically because of A arms and steering arms being on a different radius. What I'm wondering is, is there a simple way to correct this? Does the levelling kit help? It's a pain when you're on an arcing bumpy Interstate turn at 75 MPH and your wheel keeps twitching as the front end gets light.

Yellomantis · 10-06-2006, 01:38 PM

some kind of steering dampener might help. Just don't know if anyone makes one yet. I remember one member was making some kind of kit a while back.

AgTitan06 · 10-06-2006, 01:39 PM

Quote:

Originally Posted by UWSkier

Going on my 3rd month with the Titan and loving it more every time I start it up, especially now that gas has dropped to $2.15 in these parts.

My only beef with it is the front end. It has excessive bump steer. What this means is, when the front end hits a bump in a certain way, the wheel gets jerked from the impact. This is typically because of A arms and steering arms being on a different radius. What I'm wondering is, is there a simple way to correct this? Does the levelling kit help? It's a pain when you're on an arcing bumpy Interstate turn at 75 MPH and your wheel keeps twitching as the front end gets light.

Yea, hold the steering wheel, and it won't move! haha jk

Yellomantis · 10-06-2006, 01:47 PM

Quote:

Originally Posted by AgTitan06

Yea, hold the steering wheel, and it won't move! haha jk

Well, yeah, that would work too...

chung_chang · 10-06-2006, 01:58 PM

I had posted in a couple of threads about this. PRG Greg put it to rest and said highway bumps are not sufficient to cause bump steer in our Titan.

By the way, you can hold the steering wheel as tight as you can and bump steer will still occur.

Yellomantis · 10-06-2006, 02:02 PM

Quote:

Originally Posted by chung_chang

I had posted in a couple of threads about this. PRG Greg put it to rest and said highway bumps are not sufficient to cause bump steer in our Titan.

By the way, you can hold the steering wheel as tight as you can and bump steer will still occur.

Dude, we're just messin around! Loosen up that tie and collar son.

chung_chang · 10-06-2006, 02:38 PM

Quote:

Originally Posted by Yellomantis

Dude, we're just messin around! Loosen up that tie and collar son.

Nah, didn't mean for it to come across as being sarcastic. Just didn't want other readers to have mis-conceptions that steering wheel has anything to do with bump steer. Bump steer can happen with zero feedback to/from steering wheel.

As far as a simple fix to reduce bump steer such as adding a leveling kit, I have no idea. I do remember Greg posted that the 4" spindle has less bump steer over stock.

chung_chang · 10-07-2006, 12:46 PM

Here is a good article explaining bumpsteer: http://www.steeda.com/PR/Mustang/bum.../bumpsteer.htm

Notice they gave 2 scenarios: actual parking lot speed bump, and taking curves at speed with no bumps. The point is, bumpsteer can be created without actual bumps, as long as the front suspension is compressed or extended to a certain degree, you will feel it if bumpsteer is poorly designed (which I believe is the case with our Titan suspension). That article is targetted for Mustangs with a simple $25 fix to reduce bumpsteer. I don't know of such a cheap fix for the Titan.

kartman · 10-08-2006, 04:19 AM

Real bumpsteer is major changing in Toe in/out as the suspension cycles. So while the titan does not have real bumpsteer I would say that we get a lot of forcefeedback from the wheels, particularly when turning while the suspension cycles and its amplified with cycle speed.