Quote:
Originally Posted by ccallana
This is the best/easiest to understand description of ride height and side effects that I have seen - thanks Bill!!!
Could also shorten your shock by 20 mm instead of raising the spindles?
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In an extreme case, yes
I recently went through this w/ my '76 C3 hotrod, where I am running at a b of 115mm w/ 225/45 x17 front tires
This is lowered by ~100mm from stock, to return compression travel to near oe spec I raised the spindles 40mm and shorted the insert by 25.4mm, i.e. I got back 65mm of travel, this is quite livable as the oe was ~175mm w/ 205/50 x15 tires and no compensation.
I did a ton of research on these w/ a lot of help from Chuck @ Elephant and Bilstein Racing
There appears to be 2 sizes of Bilstein inserts for Bilstein struts
most b6 or b8 are 21.36" long and there is one version of b8 that is 22.07" long, I believe that this later was made for the Safari cars.
Elephant has a service where they can cut down the insert to you spec, this combined w/ a shorter wiper seal gets the extra compression travel back.
Something I need to emphasize here is that there are 2 factors affecting the steering knuckle heigh you want to use
1) chassis height b
2) is spindle height
changing either of these implies that the steering knuckle height will need to change
i.e raise spindle 20mm by itself w/ no other change also raises the steering knuckle height by 20mm
lower b by 20mm alone w/ no other changes also raises the steering knuckle height by 20mm
do both and you need 40mm total adjustment to steering knuckle height, this can come from just the outer end or a combination of outer and inner end ajustments.