Are s4 and s5 Irons the same
the middle iron also has an EGR passage on it (n/a), could be blocked off to use use in an S5 i assume though. i don't see why they couldn't be used in an S5 motor really. i have used S5 rotors and rotor housings with all other S4 components.
Mechanical Engineering
Joined: Jun 2004
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From: South Carolina
Originally Posted by Karack
the middle iron also has an EGR passage on it (n/a), could be blocked off to use use in an S5 i assume though. i don't see why they couldn't be used in an S5 motor really. i have used S5 rotors and rotor housings with all other S4 components.
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Originally Posted by Aaron Cake
The aux ports (NA) are larger on the S5.
where are you getting your info, i'd be interested in the differences?
- Aaron
Joined: Feb 2001
Posts: 29,798
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From: London, Ontario, Canada
Has direct comparisons of all the stock ports:
http://www.rotaryengineillustrated.com/re101/ports.php
Notice how much larger the secondaries are on the 6 port compared to the 4 port. And the fact that they have a much longer duration...
http://www.rotaryengineillustrated.com/re101/ports.php
Notice how much larger the secondaries are on the 6 port compared to the 4 port. And the fact that they have a much longer duration...
90 Turbo
Joined: Jun 2004
Posts: 272
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From: Cookeville TN
Originally Posted by Aaron Cake
Has direct comparisons of all the stock ports:
http://www.rotaryengineillustrated.com/re101/ports.php
Notice how much larger the secondaries are on the 6 port compared to the 4 port. And the fact that they have a much longer duration...
http://www.rotaryengineillustrated.com/re101/ports.php
Notice how much larger the secondaries are on the 6 port compared to the 4 port. And the fact that they have a much longer duration...
That's a keeper!
I live in an igloo
Joined: Jul 2004
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From: calgary alberta
Originally Posted by Kahren
that site is wrong about the s4 aux, the ports are the same s5 or s4. the smaller aux is on the 13b gsl-se model first generation rx7
90 Turbo
Joined: Jun 2004
Posts: 272
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From: Cookeville TN
Originally Posted by BlaCkPlaGUE
I have a feeling that you are right, when I look at the irons from all the pictures that I have seen there does not seem to be a difference. Also I read a writeup about a guy using an S5 intake, he didn't mention anything about port matching for his S4 block. Im gonna do some more research...
Joined: Feb 2001
Posts: 29,798
Likes: 128
From: London, Ontario, Canada
Originally Posted by Kahren
that site is wrong about the s4 aux, the ports are the same s5 or s4. the smaller aux is on the 13b gsl-se model first generation rx7
To the original poster, what more do you need to know? Your question has been answered.
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