Right now I cannot shift (1/2) above 5k, it just wont go into gear. Has no problem doing the 2/3 shift and I haven't tried the 3/4 at any real rpms.
Sounds like you have street clutch disc with the wave spring in between the two discs that expands the higher you rev it
If that is the case swap it out for a race disc that is designed and built to be rev above 5000 RPM and still shift
Been there, done that
I am not even sure what brand it truly is. I bought it from american powertrain years ago before they sold centerforce. I feel like at the time they called it "science friction" Maybe Ill give them a call, but in the past, ordering other parts for my swap I was not too impressed with their knowledge of their own products or customer service.
This is the only picture I have of it.
