I am wondering because I upgraded my OEM coils for a set of Swift Rs that sit about an inch lower. It seems logical that the OEM end links are now too long and potentially putting pre-load on the front sway bar and affecting its performance. They make adjustable links, is it a good idea? How do I know how long or short to make them?
There shouldn't be any preloading of the bar, just pushing it upwards by some amount that should be less than the inch of ride height drop. As long as there's no interference I wouldn't sweat it.
They're not preloading anything but are probably at less that ideal angles and could cause interference at the extremes of travel. If there's no interference then shorter links are a good idea but not really necessary.
I agree that they don't preload. The only reason for shorter links would be if the bar ends are hitting something or if they are at an angle that changes their effectiveness. If the ends of the bar are sticking up at a 45 degree angle, the moment of inertia will be greatly altered. You'll effectively be decreasing the amount of stiffness of the bar because it will take more suspension movement to affect the same radial motion of the bar.
But if you're somewhere within 10-15 degrees from where you were, the difference won't be really measurable.
No.
The G35 is on lowering springs with OEM end links and an aftermarket bar. It works just fine.
I had issues at extreme lowering with honda sway links, but mostly from running out of range. Longer links would help, but only so much. By that time the roll center was 3 ft underground, so that was the least of handling concerns. I would Imagine most sways are designed to work with minimal binding through the normal range of travel.
Look at it another way: shorter spring is same length as when the original spring encounters a bump.
If both springs are the same length how would there be any preload?
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