2nd Generation Specific 1986-1992 Discussion

Is A 13bre Rotor Housing The Same As A Brew?

Old 03-03-2004, 06:02 PM
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Just what the question says. I think i fucked my rotor housing so I'm gonna need new ones. So is a 13BRE ROTOR housing the same as an FD housing?
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Old 03-03-2004, 06:47 PM
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basically, but apparently there is a knock sensor bung on brew housings, timing might be different too...
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Old 03-03-2004, 07:06 PM
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the coating in the inside of the housing is different
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Old 03-04-2004, 02:51 AM
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Doesn't the RE have different exhaust ports than the REW?
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Old 03-05-2004, 06:20 PM
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Yes, the exhaust sleeves are different (and shitty in the RE).





Timing is not affected by the location of the spark plugs, btw.
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Old 03-05-2004, 10:22 PM
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Originally Posted by scathcart' date='Mar 5 2004, 07:20 PM
Timing is not affected by the location of the spark plugs, btw.
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Old 03-05-2004, 10:44 PM
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doesnt matter where the spark fires in the housing, as long as its still firing in the combustion area. as long as the leading fire together.
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Old 03-08-2004, 03:16 AM
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Originally Posted by 1Revvin7' date='Mar 5 2004, 08:22 PM
Its common misconception that since the S5 moved the spark plug location in the rotor housing, that this affects the ignition timing, and you have to be careful when using S4 rotor housings with the S5 computer, and vice versa.

This is completely wrong. Spark plug location determines where combustion begins from, and timing is determined by when spark occurs with respect to eccentric shaft rotation (in degrees).



This reply was made in reference to BigTurbo's quote that "timing might be affected too".

Unless, of course, he meant exhaust port timing, in which case, the ports are identical, but the RE sleeves have a lip on them which makes the port close earlier. With FC turbo/FD exhaust port sleeves, the port timing is identical.
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Old 03-08-2004, 11:15 AM
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Originally Posted by scathcart' date='Mar 8 2004, 04:16 AM
Its common misconception that since the S5 moved the spark plug location in the rotor housing, that this affects the ignition timing, and you have to be careful when using S4 rotor housings with the S5 computer, and vice versa.

This is completely wrong. Spark plug location determines where combustion begins from, and timing is determined by when spark occurs with respect to eccentric shaft rotation (in degrees).



This reply was made in reference to BigTurbo's quote that "timing might be affected too".

Unless, of course, he meant exhaust port timing, in which case, the ports are identical, but the RE sleeves have a lip on them which makes the port close earlier. With FC turbo/FD exhaust port sleeves, the port timing is identical.
Yea BigT and I relized thats what you meant after I posted. Drunken motor talk is fun

And BigT did mean exhaust port timing.
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