|When KW first measured our car they discovered a problem that we were not aware of. When we first built our car many years ago we used Midori adjustable upper links that were intended to be used on a BNR32 Skyline GT-R. All the suspension links between the Z32 and BNR32 interchange except the front lower control arm. Anyway apparently a BNR32 has a different upper arm chassis bracket with more clearance because the adjusting collar of the Midori arm contacted the bracket and was limiting our wheel travel. The car was bottoming out on the bracket instead of the bumpstops! We were only getting about an inch of bump travel. Funny thing was the car worked pretty good with this going on and still had minimal understeer!
|A closer look of the collar hitting the braket.
|Our buddy Charles Park of Powertrix came to our rescue. Charles had found this problem a long time ago and decided to develop his own upper link using the quality design and non compliant low sticksion bearings of the Midori part but with the adjusting collar moved back to give more room for clearance and more wheel travel. The Powertix part is a lifesaver for serious Z32 guys. You can see how the collar is moved back in this picture.
|We found the Powertrix part to be a little bit of a tight fit so we used a belt sander to give them a little clearance so they would easily slip into place.
|The Powertrix upper link has more clearance than stock and at least doubles our bump travel. For guys who want a super low car, Powertrix is developing a part with a bend in it to give even more clearance.
|Here is the Midori part in place from the same angle so you can see the big difference in clearance. Remember the pivot side gap is multiplied by the length of the arm when figuring wheel travel so this seemingly small increase in clearance is actually quite significant.