I got my h-techs installed the other day, and i was pretty sure i got everything installed correctly. i've lowered multiple cars before. but when i go over certain bumps it sounds as though i'm bottoming out. i have no problems going over speed bumps, but it's little things like those tiny man-hole covers (about 5" diameter) that cause the sound. it sounds something like if the shock was only being held in with one bolt in the engine bay, and is just kinda rattleing. everything i've read says that the h-techs should not bottom out, so i'm wondering what went wrong. some people have said that the upper perches have to be set in a very particular way. but i'm thinking that I may have cut the bump stops too short.

the tein manual online shows four different "cut types," A, B, C, and D. I did cut type B. http://www.tein.com/tech_info/inst/stechu.pdf

Any input would be greatly appreciated.

 

bump for input

 

oh crap just installed today didnt have a problem, didnt kno about cut types either i just cut a 1/2 inch on top lol

good luck finding out wats going on, maybe u forgot to hook ur sway bar bak up?

 

your not suppose to cut the bump stops for h-techs, only for s-techs and that could be your problem that your having. also did you remember to install the bump stop because i forgot to do that once and it sounded like if the shock was blown when it went over the first speed bump, until i took it apart i noticed that i forgot to put the bump stop.

 

i installed my springs myself and i cut my bump stops. i got my instructions from a fellow SL member.

https://www.scionlife.com/forums/viewtopic.php?p=813434

 

my htech instructions said to use plan B to cut bump as well.

 

yeah my bump stops were cut the same as Brian's 'plan B'

installed by my friend at Toyota.

 

i did cut B. i hooked the sway bar back up. no problems with the back, just the front. is there anywhere that sells bump stops, than I can get a fresh set to see if that solves the problem?

 

bump