I don't think they are of topic at all. In suspension pretty much everything affects everything else, so there's not a lot of off topic anyway.
By "shorten the tie rods" do you mean cut ands re thread them or simply adjust their length by the thread provided?I am also using the Mugen lower brackets and I was forced to shorten my tie rods in order to get zero toe or any toe out, how much more adjustment do you have on your tie rods? I am surprised you got away without having to modify the tie rods.
When you lower a DC5 without changing the steering arms you have to wind out the tie rods to get the static toe back where it belongs. On the other hand, when you lower a DC5 and change the steering arms at the same time you don't have have to wind out the tie rods to get the static toe back where it belongs, it's pretty much right where it is.
Maybe what you are describing is simply puting the steering arms' length back close to where they were before you lowered it.
Of course, you can't have bump steer in a race car, so the target is always zero. In a production based car we very rarely achieve zero through the whole range of travel suspension, so the compromise is zero within the most commonly used travel. That 50 mm of bump and 25 mm of rebound I talked about in the previous post.Have you measured the bump steer with the Mugen brackets in place? I am just curious. I run my car moderately low (330mm vertically from centre of the wheel to my hammered out guards) and the bump steer characteristics of the inverted tie rods when using the Mugen brackets has always interested me, although not enough to do it myself
We shouldn't ignore the rear bump steer, it's just as important for handling, you just don't feel it as much through the steering.
Cheers
Gary
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