I thought that looked familiar Travis.
post #16:
Many of the ailments of running the tall spindle are not nearly as evident until you have removed the tall spindle and re-driven the car in the same parameters...that is when you kick yourself and ask "why the hell have I been living with this so long".
There is no fix for the bump steer. You would have to completely start from scratch including relocating the steering box and idler arm to correct it.
Andrew, you either have a fast ratio box or just don't remember how much quicker the steering was before the change, it slows it a bunch, it has to (mechanical equations are not subjective).
There is no fix for the increased turning radius, again, it’s a mechanical equation based on the length of the steering arm.
I'd like to add that while the increased radius is most noticeable trying to make u-turns it also shows during spirited driving where hand movement on the steering wheel, turns that normally wouldn't require repositioning of your hands (not ideal when trying to concentrate on your line) now require you to move your hands.
Travis already got post #10
post #7:
There are lots of better solutions out there, especiallly lately. ATS has the A/F/X spindle, Marcus at SC&C has had the tall Howe ball joints available for quite some time, Fatman has a tall spindle in the works, and I don't recall the name but there have been spindle extenders on the market for a couple decades now.
FRCH/RRCH= front and rear roll center height
In a perfect world the roll axis (the imaginary line that runs from the front roll center to the rear roll center) would run roughly perpendicular to the ground at around 6" or so. The prblem with running the front that high is that in most cases it would produce a jacking affect which could lead to very unpredictable handling, running the rear that low is nearly impossible due to ground clearance issues.
Most classic cars the FRCH is somewhere between -4 and 2", the rear is typically 16-24". Properly done the front can easily sit at 3-4" and the rear at 7-10"....much better roll axis overall.
__________________
Dennis
|