what aftermarket apex seal would you choose?

[GoopyPerformance]

Originally Posted by Rotary Evolution

there is no indestructable apex, side or corner seal. if they hold up then you will crack an iron, if you pin the engine the seals will warp or eat a side/corner seal. there is no way to build an engine to handle detonation more than in short bursts.

well said Ben..

Although parts and tuning has come a long way, when you improve in one area you will have to improve in the other..

Also keep in mind when building 2MM engines to always use authentic OEM Mazda FD 93-94 Apex seal springs, side seal springs and corner seal springs. They are able to withstand higher temps for longer periods of time.
All others that i have seen will loose deflection with one or two passes down the 1/4