Hey there guys, What i am wondering is, how long will it take for housings to develope apex seal chatter marks when running steal apex seals with mfr pp housings. The car is going to be street strip, obviously more strip, but i want to run at first a 150 shot of nitrous, which made my carbon apex seal idea go bye bye. So if i am revving my engine at 11,000 rpm with steal apex seals for lets say 15 seconds at a time, this shouldn't hurt the engine at all should it? Also would i be able to run a couple laps at a road race course, or do an autocross without having any problems?

Thanks, Mike