| Re: Shock dyno comparo |
Subject: Re: Shock dyno comparo by ghoffman on 2008/7/7 11:13:44 The first is a new GM T1 C6 shock as labeled. The ones labeled are A=Renamed brand made in Asia (Japan or China) coil-over on full soft. The adjuster only effects rebound, but there is some bleeding over. It only added a little to full hard to 225 pounds. B- Bilstein aluminum body after re-pressurizing it. It would leak down in an hour to 75 PSI. We kept it up at 150+ for the test. The fronts leaked too, and they were about a year old. At least it had a Schrader valve so it could be recharged, otherwise you would only know when it is on the dyno because you can hear the cavitations. It sounds like a kid sucking at the bottom of a soda with a straw. C- My old Penske 8100s (that I bought used and rebuilt like 2 years ago, now sold) with the bump on full soft, rebound on ½ hard, after 6000 miles or so and 20+ track days. I did these plots when I sold them as a QA check before I shipped them to him. D- Moton T1 shock on moderate bump, max rebound. Dyno's don't tell the whole story but clearly they can find issues like the T1 shock that was broken and I really don't know what was going on with sample "A". Sample A made audible clunking when cycled as did the fronts from the same manufacturer. I presume it had some kind of a floater gizmo inside it, which we have seen (or heard) on KYB's. |
