12A or 13B

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11-25-03, 08:27 PM

crazychicka6987

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12A or 13B

Well guys should I rebuild the 12A motor in my 85 rex or drop in a 13B?

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11-25-03, 08:32 PM

QuagmireMan

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i like smoking someone then telling them i have a 1.1 liter engine under da hood, 1.3 would hurt their pride but not as much as 1.1

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11-25-03, 11:21 PM

hornbm

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there is no replacement for displacement, buddy.

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11-25-03, 11:26 PM

rxtasy3

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u'll get more torque from the 13B.

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11-25-03, 11:32 PM

crazychicka6987

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Will a 13B mount on to the tranny in my 85?

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11-25-03, 11:35 PM

Zeta-Gouki

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Quote:

there is no replacement for displacement, buddy.

Odd words from a rotorhead... guess those huge displacement V8s are better eh? :p

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11-25-03, 11:37 PM

crazychicka6987

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yah sorry, new to this rotary thing, is there any problems in swapping a 13b for a 12A?

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11-26-03, 12:30 AM

FB II

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i'm a 12a buff! STICK WITH THE ORIGINAL MOTOR

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11-26-03, 11:17 AM

Wankelguy

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Just put a carbed 4-port 13B in it.
The 13B feels so much torquier than a 12A it isn't funny.
With a carbed 13B, you won't have to adapt any engine wiring, either.

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11-26-03, 11:52 AM

#10

purple82

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Quote:

Originally posted by hornbm
there is no replacement for displacement, buddy.

hornbm, do you have the carb installed? How's torque for you compared to the stock FI intake?

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11-26-03, 12:54 PM

#11

crazychicka6987

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FI is more responsive than a carb, but I do not like working with the wiring involved with FI

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11-26-03, 01:18 PM

#12

purple82

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I ask because I went from a Weber 48 to an S5 intake with a Haltech and I'll never go back. The engine has much more low end without sacrificing any top end, and I've got the secondary ports open all the time.

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