HKS Hipermax GT or SP?

[Bach415]

@Scott@HKSUSA Just wondering, is the sp's suspension suppose to make noise when going over speed bumps slowly? It sounds like when you jump on a old spring bed kind of sound.

[troek]

i got this noise too when first installed, it went away after a while. i did alot of video watching trying to match the sound and i attributed it to bushings from it being lowered. it went away before i could definitively pin it down though.

[nzbrooke]

Originally Posted by Bach415

@Scott@HKSUSA Just wondering, is the sp's suspension suppose to make noise when going over speed bumps slowly? It sounds like when you jump on a old spring bed kind of sound.

Mine are doing this now too - but as noted above, mine have been on max hard for a few months, and are now on max soft, so guessing it will go away after awhile.

[Bach415]

Originally Posted by troek

i got this noise too when first installed, it went away after a while. i did alot of video watching trying to match the sound and i attributed it to bushings from it being lowered. it went away before i could definitively pin it down though.

It doesn't sound like it's from the bushings though cause I had it on sportline (which is lower than what I have it now) and it didn't make those noises on sportlines. Maybe I'll attach my gopro in the wheel well then go over the bumps and see. I've had these since October and the noise is still there. Everything is tighten and checked. It might just be the spring compression/rebound.

Originally Posted by nzbrooke

Mine are doing this now too - but as noted above, mine have been on max hard for a few months, and are now on max soft, so guessing it will go away after awhile.

Mine has been on full hard and full soft and right now is in between and still have the noise since install.

[Scott@HKSUSA]

Originally Posted by Bach415

@Scott@HKSUSA Just wondering, is the sp's suspension suppose to make noise when going over speed bumps slowly? It sounds like when you jump on a old spring bed kind of sound.

Definitely not. There are only two things I can think of: A) you have a little rock or pebble stuck between coils or B) if you're compressing the spring a lot it may be twisting a couple mm on the perch.

[Bach415]

Originally Posted by Scott@HKSUSA

Definitely not. There are only two things I can think of: A) you have a little rock or pebble stuck between coils or B) if you're compressing the spring a lot it may be twisting a couple mm on the perch.

Well, I doubt it is a pebble stuck between the coils because this sound happened right on first drive after the install (there's a small bump off my driveway onto the street). I'll check the compression of the spring when I get back from my vacation but I doubt it's that as well because I only move the perches to a snug fit with spring and tightened from there.

[3k1n]

Sorry for bringing this thread back. I'm getting the same clunking noises. Its largely due to front spring bind it seems. Anyone figure out how to fix it? Does hks offer a radial bearing option to upgrade?