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Lol_Traction · 09-12-2018, 11:19 PM

Hi all. First all, I’m pretty new to the chassis as a whole and consider myself a novice when it comes to suspension tuning. After buying the car I incrementally raised the ride height every month for a few months to where it sits now. Previous owner was about low and slow and I was not. Went from no gap and a slight tuck to about 3 fingers and possibly higher as I plan on getting some meaty tires for the 18x9.5s.

However I started to notice that there is some clunking and a sharp tap occasionally coming from the corners. Primarily in the rears but sometimes in the front. It occurs pretty randomly and only at low speeds especially when one side is under load (or potholes) and the other side isn’t like those speed bumps with a gap in the middle. I would take driver side wheels through the gap and the passenger side goes over the bump. I didn’t notice this very much when the car was lower.

I’ve looked around the forums and read it can be sway bars that are loaded too much during install. Other said it could be the end link is not adjusted correctly. My noob intuition is saying it could be the swaybars are loaded at the much lower ride height and are not set to the raised height I put it at. I’ve raised it nearly two inches. This also got me thinking, which I could be completely wrong, that if the sway bars are loaded too much it may account for the bumpy feeling low speed ride when taking an onramp into a freeway. Or almost a sensation that my coilovers are not given enough space to fully compress and depress. The spring rates are 9k/7k. Not sure if they are on the stiffer side of things but anything with a “racing” in their name I assume they will be harsh on crappy cali roads anyway.

I plan on getting the car off the ground on jack stands this weekend and was hoping to get some guidance on what I can start looking at and to make a sort of checklist as I wouldn’t know where to start. I was thinking about reinstalling the endlinks with no preload. Any help would be awesome!

Car setup:
Buddy Club coilovers with possibly provided adjustable endlinks in the front.
Perrin front and rear sway bars
Whiteline rear support bars
Whiteline trans mount insert
Whiteline diff bushing insert

Thanks!

09-12-2018, 11:19 PM	#1
Lol_Traction Junior Member Join Date: Aug 2018 Drives: 2015 Scion FRS Location: Bay Area, California Posts: 2 Thanks: 0 Thanked 0 Times in 0 Posts Mentioned: 0 Post(s) Tagged: 0 Thread(s)	Raising the car causing clunking sounds? Hi all. First all, I’m pretty new to the chassis as a whole and consider myself a novice when it comes to suspension tuning. After buying the car I incrementally raised the ride height every month for a few months to where it sits now. Previous owner was about low and slow and I was not. Went from no gap and a slight tuck to about 3 fingers and possibly higher as I plan on getting some meaty tires for the 18x9.5s. However I started to notice that there is some clunking and a sharp tap occasionally coming from the corners. Primarily in the rears but sometimes in the front. It occurs pretty randomly and only at low speeds especially when one side is under load (or potholes) and the other side isn’t like those speed bumps with a gap in the middle. I would take driver side wheels through the gap and the passenger side goes over the bump. I didn’t notice this very much when the car was lower. I’ve looked around the forums and read it can be sway bars that are loaded too much during install. Other said it could be the end link is not adjusted correctly. My noob intuition is saying it could be the swaybars are loaded at the much lower ride height and are not set to the raised height I put it at. I’ve raised it nearly two inches. This also got me thinking, which I could be completely wrong, that if the sway bars are loaded too much it may account for the bumpy feeling low speed ride when taking an onramp into a freeway. Or almost a sensation that my coilovers are not given enough space to fully compress and depress. The spring rates are 9k/7k. Not sure if they are on the stiffer side of things but anything with a “racing” in their name I assume they will be harsh on crappy cali roads anyway. I plan on getting the car off the ground on jack stands this weekend and was hoping to get some guidance on what I can start looking at and to make a sort of checklist as I wouldn’t know where to start. I was thinking about reinstalling the endlinks with no preload. Any help would be awesome! Car setup: Buddy Club coilovers with possibly provided adjustable endlinks in the front. Perrin front and rear sway bars Whiteline rear support bars Whiteline trans mount insert Whiteline diff bushing insert Thanks!