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FS Steering Rack Spacers 4.8mm
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The concept eludes me. You space the inner tie rods out, but then you have to adjust the outer tie rods in to eliminate toe out. With out changing the mounting position on the knuckle or adding teeth to the steering rack i'm not sure how you'd increase the steering angle. Unless the rack is limited by the inner tie rods and not the teeth.Your signature picture has been removed since it contained the Photobucket "upgrade your account" image.
www.gecoils.com
My euro 316 project Transaction FeedbackComment
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The rack is limited by the rack stops, which are a step in the inner tierod preventing further rack movement, Which happens a while before the rack runs out of teeth. So effectively you are giving the rack further room to travel, with such a short effective steering arm length on E30's compared with other cars it gives a substantial to the angle that can be achieved.
Toe out is cancelled as you say by setting the out tie rods back in by an equal amount.
There are some advantages and some disadvantages to using rack spacers.
They are cheap as chips and can dial in some pretty decent angle if you have wheel and tyre selection, offset and/or spacers to get it all without rubbing.
But there are big gotchas that not a lot of people seem to realise, If you are running excessive castor dialled in through the lower control arm rather than through the strut top then you have effectively moved the generation of Ackermann geometry from a relatively linear curve to an exponential curve, with increased steering angle going to only one wheel. This is due to the front steering rack being effectively repositioned aft relative to the tie rod ends.(not a bad thing in that it prevents toggle over, but in a perfect world should be matched with a shortened steering arm which many E30 owners like will not be too keen to do because of the design) I have heard people, mostly E36 owners complaining about the amount of Ackermann that BMW gave these cars, all run rack spacers to get more travel and all run M3 offset (or more aggressive, treehouse or similar) lcab's which is almost held in 'first mod' status in certain circles.
Everything needs to be thought through to get the best result, im taking a less is more approach to my drift build though, as I fully expect the car to get bent at some stage, rack spacers certainly fit that mold, less money, more angle.Comment
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