We didn't have enough testing time with the GMR hubs to tell if they were good or bad, I think she ran two events, DelMar, & a track day. The machine work was outstanding but they gained play slightly, so we tightened them - slightly, then they loosened again so we adjusted again - slightly. Adjustments were done to Jason's specs, - zero preload, not .001" play as other bearings. We still had brake knock back issues & already had installed the Baer floater on the rear.
Mary then decided to change to an Art Morrison subframe, so we ended testing. We didn't have knock back with the Art Morrison sub, - using ZR1 hubs.
I'm no engineer, but I don't like seeing taper roller bearings that are that small & that close together, - as they have to be to fit inside the space of a Corvette hub. They must be pretty heavily loaded.
The one lap Camaro front wheel issue was due to wheel flex in my opinion (HRE). That car has always had minimal knock back, - even with ball bearing rear axles. OLC was using std Corvette bearing units at that time, later went to the ZR1 type but we saw no difference. At that time, OLC was having huge understeer issues (no rear bar) which put a lot more load on the front wheels.
Last edited by David Pozzi; 01-09-2015 at 12:00 AM.
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