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S4 v S5 Waterpump , Which has better waterflow?

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Old Feb 11, 2020 | 09:40 PM
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S4 v S5 Waterpump , Which has better waterflow?

I have both an S4 and S5 housing, and i am going to be putting in a new water pump, but i am just not sure which is the better one to get.
In all of my searching, i haven't seen anything that clearly defines one is better than the other. I know the S5 has a different bolt pattern than the S4, but other than that, i havent seen any other clear advantages of one over the other.
The keg is S4 at its core, so i am not sure if there will be pulley alignment issues if i do go to an S5 water pump.

any and all advice is greatly appreciated, thx!
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Old Feb 12, 2020 | 01:04 PM
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From: https://www2.mazda.com/en/100th/
http://foxed.ca/rx7manual/manuals/S5...Highlights.pdf

see page E-5
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Old Feb 12, 2020 | 09:01 PM
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Thank you very much for sharing and pointing me to this!
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