Mazda 1.3 turbo

[flea]

^ technically, your S4 FC did NOT come with the EXACT same motor as all FC's and FD's. For one: you lack the VDI system. 2, you lacked the S5's (and later's) high-compression rotor's.

But i suppose if you are talking about blocks then eh.

[flea]

and finally, to aid in supporting my fellow rotor-heads:...

DOES THIS LOOK LIKE 2.6 Litre engine TO YOU?!



that was my FC, [N/A] and its torqueless-ness proves the 1.3litre fact.

[rizzxx7]

hahah this thread is funny

[7051072240]

A 13B is technically 2.6L as it is classed similarly to a two-stroke motor... firing twice per rotation... semantics, blah. Both have a case.

There was a fairly good explanation of this in an older issue of SportCompactCar.

[magnumpsi]

13b was rated as 4 stroke when in actuallity it is a 2 stroke motor. 4 stroke motors fire once for every two revolutions but the 2 stroke rotory fires every time around. which if you were to rate the 13b on a 2 stroke scale as it should be then it is a 2.6L

[flea]

as its been explained to me, the trailing plugs only job is to burn off any excess gas that wasn't ignited initially. Rotary's aren't clean, not by any means, and until they moved the exhaust ports to the back, instead of the side where there is over-lap, they were pretty in-efficient in their fuel.

I never knew both Leading and Trailing plugs to be responsible for the combustion that makes power, rather instead just burning off excess and with that 'burn' helping to push the rotor around.

[illeagle]

link doesnt work anymore

[SevPP]

Both arguments make sense. I have read up quite a lot on this in another forum and it is quite complicated. If you do a search you will find various arguments supporting both sides.
The rotary is the only engine whose capacity isn't measured by each combustion face, ie 1308cc is the apparent capacity but when measured on each combustion face 3.9 is what it works out as.
You can argue what you want but this is how it is.

[RotaryWeapon]

Ok, if it was 2.6L or 3.9L than it would have been rated that. But its rated 1.3L for a reason. Because it is. But if u wanna look at it a more complicated way than u can think its 2.6 or 3.9. U have to own one ar two to understand. Take one apart also.

[SevPP]

Own two or three? Ok, lets see, I have 3 12a's (rx7), one in a Datsun 180b (610) one in an RX7 (1st gen) and one on a floor in pieces. I have one 13b peripheral port on the shed floor that was in the 7, in good order. I also have a 12a twin dizzy in pieces.

The 2.6 capacity is based on the ammount of air consumed during one complete crank (eccentric shaft) turn, I think thats what it is!

Looking at motorsport, they rate the rotary at 1.8 times its rated capacity her in Aus. Arghh, the fun and games of arguments!

[RotaryWeapon]

I got 2 as for now. i have another on the way. And I am planning on one more this summer possible a 1st gen. U AUS guys are crazy, but the THE WHOLE WORLD knows its 1.3L.....wink.

[misthael]

It's both 1.3 and 2.6. It depends on your view of how the motor functions in way of strokes. Since there are only specs for piston engines, 2 stroek/4stroke, then they had to use one or the othere and it's different depending on which way you think it is. But the general consensus is 1.2 for the 12A and 1.3 for the 13B. THe 12A is 1146cc however, which is not close to 1.2 liters. So we're all right.

EDIT: BTW.... link broken dammit.

[RotaryWeapon]

Ok for all u piston people u can call it a 2.6 just so u have an excuse when u lose. But again we all know its 1.3L.

[rotarysmychoice]

listen: It is stamped on the block as a 1.3L for a reason. it has the displacement of 1.3 liters! don't try and manipulate the facts. it is what it is. if you're gonna talk about cycling and crap and how many times it fires, thats a whole different subject. THE SIZE OF THE MOTOR DOESN'T CHANGE BECAUSE IT HAS TWO SETS OF SPARK PLUGS!! HELLO!!

[RotaryWeapon]

Thank U!