NoPistons -Mazda Rx7 & Rx8 Rotary Forum
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NoPistons -Mazda Rx7 & Rx8 Rotary Forum (https://www.nopistons.com/)
-   2nd Generation Specific (https://www.nopistons.com/2nd-generation-specific-17/)
-   -   20B transplant (https://www.nopistons.com/2nd-generation-specific-17/20b-transplant-3265/)

UniqueTII 06-26-2002 08:21 AM
I hear that 13B housings have bigger ports stock, so it's better to use them when building a 20B.

The Blue Bomber 06-26-2002 08:57 AM
Originally Posted by UniqueTII' date='Jun 26 2002, 09:21 AM
I hear that 13B housings have bigger ports stock, so it's better to use them when building a 20B.
i thought it was the other way around (the 20b has bigger ports) at least thats what i gleaned from watching the japanese tuner video on np.net

13BAce 06-26-2002 09:14 AM
Originally Posted by UniqueTII' date='Jun 26 2002, 10:21 AM
I hear that 13B housings have bigger ports stock, so it's better to use them when building a 20B.
The tricky part is that one of the housings for the 20B has botha primary port AND a secondary port. The 13B secondary ports probably won't match that one.

13BAce 06-26-2002 09:15 AM
Originally Posted by The Blue Bomber' date='Jun 26 2002, 10:57 AM
[quote name='UniqueTII' date='Jun 26 2002, 09:21 AM']I hear that 13B housings have bigger ports stock, so it's better to use them when building a 20B.
i thought it was the other way around (the 20b has bigger ports) at least thats what i gleaned from watching the japanese tuner video on np.net[/quote]

I'm not sure about the intake, but the exhaust ports aren't too big. They also have splitters in them like 86-91 NA's.

Shane.Trammell 06-27-2002 03:35 PM
ok what are you doing with that engine when you get done??


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