I was talking to a guy at the track the other day about the engine I'm building for my T2. He says use ceramic apex seals because they are bullit proof. He told me that after the engine dies I can take them out and use them in a new engine.
I know they are very expensive but if the will last then I would do it.
My questions. Why should I not use them? Why should I use them?
I don't care about the price at this point, I'm looking for tech info.


Thanks,
Mike

 

they are more resistant to detonation, however they will still crack/break/shatter with bad enough detonation

stick to the sotxk 3 piece 2mm seals, mazda spent lots of time and effort testing and developing them, they will withstand around 1200hp before breaking provided you dont detonate.

 

i heard quite the opposite, the ceramic seals are more prone to detonation but when they break don't stuff up the housings

 

It does not matter how good the apex seal is. We know apex seal is the weakest part of the rotary engine. If you make it so strong that it will not shatter, crack, etc, something else is going to break. The pressure will be vented from the weakest spot. The right thing to do is to watch the a/f ratio and avoid detonation. Don't depend on a super apex seal to keep your motor alive. Tuning is much more important and it's tuning that will make your engine last.

 

Yes a lot of that is true, however, the weakest part of a rotary is the farking idiot who is modifying it incorrectly. end of story.

The stock 2mm apex seals will withstand around 1200HP before breaking from sheer HP force. So if you keep A/F ratio in check then your stock 3 piece 2mm seals will handle 1100HP not a problem, the rotor housings will start to walk sideways around the spark plug area at around 700rwhp, which is what dowelling is for, not to prevent twisting which you get from running high boost which is what the so called "experts" will try to tell ya.

The weakest part of the rotary engine is the So called "experts" who most people listen to, who in actual fact know no more than any other joe bloggs, they are just all following what others have done i nthe past which 99% of the time is incorrect.