quick advice needed
10-10-05, 06:54 PM
#2
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At a guess, I'd wonder if it was converted to a Ford 2300 cc engine (aka Pinto, Focus, Tempo). A 13b is 1.3 litres. Not sure about the 20b, but if each rotor is the same size as the 20b (and I think they are), then it would be around 2 litres.
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10-10-05, 10:51 PM
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If the 13b is 1300cc or 1.3liters, and the 12a is 1200cc and 1.2 liters, wounldnt the 20b be 2000cc and 2 liters?
A 13b displaces 1.3 litres. Its something like 654cc per rotor. I'm pretty sure the 20b is the same as three 13b rotors, which would come to something like 1962 cc (2.0 litres).
10-10-05, 11:52 PM
#6
MAZDA
Mazda production engines follow a fairly simple numbering system. The numbers roughly indicate rated displacement in liters times ten (13B = 1.308L, or 1308cc), though sometimes a bit optimistic (12A = 1146cc), and the letter indicates a significant design revision. The first Mazda rotary cars were powered by 10A engines, while subsequent rotaries were either 12As or 13Bs (of numerous varieties). Outside the US, Mazda even produced cars around the 3-rotor 20B, in twin turbo form. Virtually all Mazda rotaries, from the 10A to the 20B, share the same internal dimensions save chamber width. For 10As, the chamber width was 60mm, resulting in 982cc (0.982L) displacement. 12As had a 70mm wide chamber, giving them 1146cc. 13Bs and 20Bs both have 80mm wide chambers, producing 1308cc and 1962cc, respectively.
taken from: http://www.rotaryengineillustrated.com/guide.php
Mazda production engines follow a fairly simple numbering system. The numbers roughly indicate rated displacement in liters times ten (13B = 1.308L, or 1308cc), though sometimes a bit optimistic (12A = 1146cc), and the letter indicates a significant design revision. The first Mazda rotary cars were powered by 10A engines, while subsequent rotaries were either 12As or 13Bs (of numerous varieties). Outside the US, Mazda even produced cars around the 3-rotor 20B, in twin turbo form. Virtually all Mazda rotaries, from the 10A to the 20B, share the same internal dimensions save chamber width. For 10As, the chamber width was 60mm, resulting in 982cc (0.982L) displacement. 12As had a 70mm wide chamber, giving them 1146cc. 13Bs and 20Bs both have 80mm wide chambers, producing 1308cc and 1962cc, respectively.
taken from: http://www.rotaryengineillustrated.com/guide.php
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