2nd Generation Specific (1986-1992) 1986-1992 Discussion including performance modifications and technical support sections.

13bt-re conversion, not a 20b!!!!!!

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Old Jun 20, 2002 | 12:40 AM
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From: https://www2.mazda.com/en/100th/
you still need the cosmo mounts, but you can use your turbo, or any stock or off the shelf turbo. your stock ecu will run the engine (a 2 rotor is a 2 rotor), but depending on how many mods you have it may not be the best choice. you can't use a t2 intercooler, it needs a front mount, and the stock intake elbow wont fit at all with power steering. you can use your fc water pump, so all the stock hoses will fit. http://www.2751engineering.com/blackfc.html

mike
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Old Jun 20, 2002 | 01:01 AM
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What are you going to do about the Turbo(s)?
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Old Jun 20, 2002 | 03:06 AM
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its easier to put an s4/s5 motor in it, the cosmo requires some addiotional work to make it run. Im kinda curious how much power it will make. Mine should be running in the next few months.
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Old Jun 20, 2002 | 05:46 AM
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why would a cosmo 13bt be better than a 2nd gen 13bt?
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Old Jun 20, 2002 | 05:51 AM
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"why would a cosmo 13bt be better than a 2nd gen 13bt?"

stronger block, bigger ports, looks cooler
from what i've heard i'd take one over an FD engine any day. it also drops in a lot better, since you can get the mounts pre-made.
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