Undefeated mountain clutching champ of the world.
- Oct 14, 2008
Great explanation. It sucks to have to overcome factory shortcomings. The .010” left for clearance would allow a small bit of flexing but not a full .060” of flexing. Longer lasting. I think the 911 allows full shift out but if any cover could withstand the flexing and remain ridgid, the 911 would be the design to have. All covers have different benefits so it’s all good.Let me know any questions you guys have. We designed this cover to be stronger as our top priority. The towers and spyder in this clutch are not as stiff as they should be so we are trying to help them the best we can.
The stock curved shape is the strongest vs a circle or straight line from tower to tower, we have the analysis to prove that. Also in our experience, these style of billet clutch covers need to be 7075. 6061 does not hold up. We scrapped and warrantied $40,000 in covers back in 2014 learning that lesson so unfortunately we know from experience.
Our second priority was reduced rotation inertia, i.e. takes less energy to spin, which we were able to do by 11% vs stock. This is what you feel in throttle response vs how much lighter it is in grams.
Our cover provides .050 more clearance to the spyder nut. We split the difference vs stock to try to limit this interaction occurring but did not go all the way as we did not want the primary to over shift vs the secondary.
Aside from the difference in bushings, which do you think is stronger? Zrp or 911 cover?