simple question for a noooobie
Thread Starter
Newbie
Joined: Mar 2004
Posts: 4
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From: nc
simple question for a noooobie
ok, im not really a car person, or know muuch. but someone told me that my rx7 is actually 2.6 liters in displacement. but, what i understand its only 1.3 liters. can someone tell me the real facts. any detailed information or sitelink would be really helpfull. i wont to understand more about the motor because i own one now. thanks alot
Reverse Engineer
Joined: Jun 2002
Posts: 355
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From: Middle of Nowhere, Center of Everywhere
There is a huge thread on this subject. Do a search, it's worth the read.
Basically, the 13B FSM (Factory Service Manual) indicates that the displacement of each rotor is 654 cc, which gives you the 1300cc displacement.
However if you compare the power pulse cycle of a rotary engine to a piston engine, it can be argued that there are twice as many power pulses in a rotary, so people say it should be called a 2.6. But there is not 2.6 liters of displacement.
Mazda won Lemans with the 4-rotor 787B car with, I think, 3.0 liters, but they outlawed it after that. Totally freaked them out, I guess.
It's like comparing apples and oranges. Just not the same thing. There is no 13B engine with 2.6 literes of displacement...just 2.6 liters of power.
But that's why the rotary engine RULES.
Do a search and ignore the trolls like the dork above. e hasn't figured out he's still a noob, too.
Basically, the 13B FSM (Factory Service Manual) indicates that the displacement of each rotor is 654 cc, which gives you the 1300cc displacement.
However if you compare the power pulse cycle of a rotary engine to a piston engine, it can be argued that there are twice as many power pulses in a rotary, so people say it should be called a 2.6. But there is not 2.6 liters of displacement.
Mazda won Lemans with the 4-rotor 787B car with, I think, 3.0 liters, but they outlawed it after that. Totally freaked them out, I guess.
It's like comparing apples and oranges. Just not the same thing. There is no 13B engine with 2.6 literes of displacement...just 2.6 liters of power.
But that's why the rotary engine RULES.
Do a search and ignore the trolls like the dork above. e hasn't figured out he's still a noob, too.
Last edited by fcfdfan; Mar 6, 2004 at 11:11 PM.
Super Snuggles
Joined: Feb 2001
Posts: 10,091
Likes: 34
From: Redmond, WA
Originally posted by fcfdfan
Mazda won Leman with the 4-rotor 787B car with, I think, 3.0 liters, but they outlawed it after that.
...There is no 13B engine with 2.6 literes of displacement...
Mazda won Leman with the 4-rotor 787B car with, I think, 3.0 liters, but they outlawed it after that.
...There is no 13B engine with 2.6 literes of displacement...
just 2.6 liters of power.
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