Quote:
Originally Posted by vtec-e
I used to go to 50psi but experienced savage wheel bounce one day when i braked just before a small step on the road surface. All was well until the tire went over the step, which was about 3/4" to 1". Then my front wheels just bounced like crazy and the ABS was going at it like a minigun! I sharted as i continued to "slide" onwards. Dropped to 40psi and it didn't happen. Maybe my shocks are on the way out but they still pass the NCT which is a biannual test on the car to ensure roadworthiness.
Having said all that, there was great grip on smooth surfaces and even wear, once i didn't go sidewall max from new.
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My dear friend, most of the symptoms, if not all, are caused by some underlying mechanical problems.
The bouncing wheel feeling is a result of a mechanical cause known as "bump steer" and it might be caused by upper/lower arms and or ball joints, upper arms shims. Check the nuts on the upper control arms, make sure they have not backed out.
As try to determine if you are dealing with a bump steer where both wheels rise together or a roll steer where a wheel rises and the other falls.
By lowering the PSI in your tires you did not addressed the mechanical problem but applied a quick fix and make the front end steering less crisp, hence less responsive.