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Originally Posted by wootwoot
The only engines Ive seen apex seals go out on in n/a form were in the 130k+ range or abused terribly. Heat and detonation are a rotaries enemy, if you experience much of either you are done. the 850cc(2 of em) secondaries make it sound worse than it is since when those fire, they fire only. They also only come in under power (for those who dont know) and the stock primaries are 550's I believe. That would make it have 286cc injectors if it was the comparable 6 cylinder which rotaries are always contrasted with. They do still get bad gas mileage, I just thought you made it sound worse than it is =P
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Pretty close. The RX-7 actually has 550 primaries and 850 secondaries. That's only the third gen, as well... of which all are turbo. The second gen turbo has 550cc injectors for both the primaries and secondarys, while the non-turbo have 460cc injectors for both. First gens use 680cc injectors for both.
Non-turbo rotaries can be very reliable when properly taken care of. The problem is the average owner can't be bothered to check their oil levels or deal with cooling problems, and they kill their motors with neglect. Piston engines are much more resiliant when it comes to neglect that rotaries. I currently have a 87 non-turbo with 140k miles on it that still has great compression and has never been rebuilt. Of course, I also own a 88 turbo that blew up on me a few hundred miles after I bought it.
There have been a few rotaries that have recorded a quarter million miles and more.
All that said, I'm currently looking at picking up a 240 and going ka-t, because while a non-turbo rotary can be reliable at close to stock power levels... there's no way to maintain that reliability when you start making any real power. There's not a lot of building that can be done, and that build will only do so much.
That.... and if you really want to talk about having no torque, drive a rotary. I'm tired of having to rev it like I'm racing to get a decent start from a stop light.