"That's life, nothing lasts forever."
sure, given my age i can assure you i am well aware of that.
while nothing does last forever, some things last longer than others.
i agree w Fritz's re road racing. it delivers tons of heat.
you can offset almost ALL of the heat. (see my thread/ 3rd Gen section... the FIX)
for my 200 mph Texas Standing Mile attempt (Oct 25) i figure i need 600 SAE rwhp for 30 seconds. while that doesn't sound like alot more time than the typical 10 second trip down the quarter mile it is many many
times more challenging for the powerplant.
consequently i will not be running gasoline... i will be running on 100% methanol. the motor will need the immense cooling of meth.
most of us are not planning on making 600 rwhp but ALL of us need to use a number of methods to readjust the interior heat levels within our motors. if you do remove the heat you will go a long way to maintaining apex seal integrity and support compression.
as to my 4 year motor... i had over 23,000 miles on it when i decided to break out my digital micrometers and just see what was going on... there was nothing wrong w the motor, i just wanted to take a look. during the 4 years it had gone from 385 MM HG to 410-415 and the last reading was the top compression tick.
i do believe it had to do w the Atkins apex seals marrying w the rotor housings with absolutely no warpage. (interior heat management)
i do run nothing but Mobil 1 5-30 and i add 4 oz of ZDDP at each oil change (3K miles).
there was almost no interior carbon existant. most motors i disassemble have huge amounts of carbon, perhaps as much as a tenth of an inch coating the rotors.
here's a rotor from my 09 motor. this rotor has not been cleaned
notice no carbon inboard of the sideseals... again, most motors have the same amount of carbon inboard of the side seals as outboard! you want no leakage past the sideseals and if they are sloppy lots of bad things happen.
so, yes, nothing last forever, but mine is going to last longer than yours.
you remember the story of the two guys sitting around the campfire when a hungry Grizzly shows up. one guy starts putting his track shoes on and the other says, "what are you doing, you can't outrun the bear..." his buddy says, "i don't have to outrun the bear, i just have to outrun you."
speaking of bear i am going to be off the net for a few days in the northern wisconsin wilderness... probably w my track shoes on.