Quote:
Originally posted by cobrashoch
Changing to smaller arms will change the angle of the arms geometry when you hit a bump. The racks output arms will have to be moved out to match that angle when you hit a bump otherwise you will be putting bump steer into the works. With just one inch difference it may not effect it that much, but if your racks output arms are marginal, as I found most modified mustangII fronts to be, then you may be heading into trouble. At the very least you will want to limit the travel of the arms some, because in a very hard bump or hard turn the angle of those arms will get wild. The result would be a tire that corners a bit more on the edge in hard corners. Better to narrow the the whole front end and put the right rack in it, but of course that's much easier said than done. Without looking over your setup a bunch I'd be a bit skeptical about such changes. You may get a bigger tire on your car that way, but you might be creating a situation where your car couldn't use it. Indeed, increased tire wear may also be a result.
cobrashock
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Ron thanks for the warning, but I may not have giving enought information in my 1 st post.When I was thinking of using the narrowed control arms I meant both upper and lower control arms that are narrowed 1" or would that not make any differents?or is that what you are saying when you say better to narrow the whole front end?
If I go with the narrower control arms I would had thought that I would have to shorten the rack output arms.
My tires are 225x60x15 and the wheel have a 3" offset.
Thank you for your help on this you may be saving me money and a big problem later in my build.
Bill