2nd Generation Specific 1986-1992 Discussion

Porting

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Old 08-04-2002, 11:32 PM
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dac
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I know that N/A Motors have the Exhaust Insert in the housings and the center housing has some very lame ports on it with no room to open them up, But the 6 ports are offer much more timming that a Turbo or any other product 13B, So wouldn't it be a hot tip to swap 6 port front and rear housings into a Turbo motor? Or vis versa?



You would have the larger Turbo center housing ports with the larger and additional port timming from the 6 port motors plus the elimination of the exhaust inserts.
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Old 08-04-2002, 11:35 PM
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n/a tuners do that.
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Old 08-04-2002, 11:36 PM
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alot of people run turbo rotor housings because of the bigger ports and no stupid sleeves
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Old 08-05-2002, 02:19 AM
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what about running just the turbo intermediate housing? I'm rebuilding my 6 port this week most likely, and I plan on doing a street port, but it looks like the intermediate housing has small ports and water jackets real close, are the turbo intermediate housings interchangeable? if so, got a good one you wanna sell me?
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Old 08-05-2002, 07:30 AM
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six port street port from judge ito

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Old 08-05-2002, 08:13 AM
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Originally Posted by pengaru' date='Aug 5 2002, 02:19 AM
what about running just the turbo intermediate housing? I'm rebuilding my 6 port this week most likely, and I plan on doing a street port, but it looks like the intermediate housing has small ports and water jackets real close, are the turbo intermediate housings interchangeable? if so, got a good one you wanna sell me?
Yep, you can do that. That is what I am running with two turbo rotor housings.
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Old 08-05-2002, 08:44 AM
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Originally Posted by RotaryManRX7' date='Aug 5 2002, 02:13 PM
[quote name='pengaru' date='Aug 5 2002, 02:19 AM']what about running just the turbo intermediate housing? I'm rebuilding my 6 port this week most likely, and I plan on doing a street port, but it looks like the intermediate housing has small ports and water jackets real close, are the turbo intermediate housings interchangeable? if so, got a good one you wanna sell me?
Yep, you can do that. That is what I am running with two turbo rotor housings. [/quote]

Hrm, that sounds like a good idea. Are the turbo housings compatible with my header and 6 port side housings? Will anything need to be modified or plugged?



I just checked with mazdatrix and the 86-88 turbo intermediate housing is $342.46,

and 86-88 turbo rotor housings are $462.49 for each. Kindof expensive, anyone know where I can get these cheaper?
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Old 08-05-2002, 09:37 AM
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Originally Posted by vosko' date='Aug 5 2002, 01:30 PM
six port street port from judge ito

I was talking about just replacing the intermediate plate (center) and perhaps turbo housings to get rid of the silencers in the exhaust port.



But the Intermediate housings on a 6 port have VERY small ports.



Here's a good picture:





The 6 ports in the end housings I would keep as they offer additional port timing.
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Old 08-05-2002, 11:19 AM
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according to the mazdatrix site, the turbo rotor housings have a water passage above the exhaust port which needs to be plugged on the N/A if you use the turbo rotor housings.
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Old 08-05-2002, 12:43 PM
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Originally Posted by vosko' date='Aug 5 2002, 07:36 AM
alot of people run turbo rotor housings because of the bigger ports and no stupid sleeves
I LIKE MY STUPID SLEEVES!



YOU'RE MAKING FUN OF ME ARN"T YOU!?







I was kicking about the idea of going with a standard 4 port 13B and carbing it to see what kinda power could be squeezed out myself.
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