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-   -   Anyone know a good way to plumb the iac in an na8 turbo build? (https://www.miataturbo.net/general-miata-chat-9/anyone-know-good-way-plumb-iac-na8-turbo-build-109157/)

GromM 03-06-2024 04:51 PM

Anyone know a good way to plumb the iac in an na8 turbo build?
 
https://cimg8.ibsrv.net/gimg/www.mia...81f767affa.jpg
It's in a 1997 na8 Miata and I'm struggling to route this iacv into the intake like I'm supposed to. its like right next to the hose it needs to go into so I can't really do a fitting, and any tube to route elsewhere would have such a sharp bend it would kink up. Also can't make the 90 degree go any farther away from the intake manifold cause it will hit the radiator.

First post sorry about any mistakes.

sixshooter 03-07-2024 08:34 AM

I can't recall exactly what I did but I will try to get a picture of it for you soon.

oreo 03-07-2024 10:35 PM

I see things like this in various sizes on ebay.
https://cimg9.ibsrv.net/gimg/www.mia...71fc551fd7.jpg

msmola2002 03-08-2024 05:02 PM

Swap to an NB TB - they don't have that fitting, they bypass internally. Will need to change out the TPS and IACV connectors tho.

niterydr 03-08-2024 05:42 PM

If you're running speed density just put a filter on it.

GromM 03-11-2024 02:23 PM


Originally Posted by msmola2002 (Post 1647333)
Swap to an NB TB - they don't have that fitting, they bypass internally. Will need to change out the TPS and IACV connectors tho.

Decided to go this route cause it seemed easiest. do you by chance have a resource for the wiring of the iac and tps? I'm sure I could figure it out, but finding a source to reference would be nice.

GromM 03-11-2024 02:24 PM


Originally Posted by niterydr (Post 1647334)
If you're running speed density just put a filter on it.

​​​​​​Too close to the pipe to even do that to be honest. Also while looking into this Ive seen people mention this can cause boost leaks and I'd rather be safe about it.

adam86 03-25-2024 09:16 PM

https://cimg1.ibsrv.net/gimg/www.mia...0d640b717a.jpg
https://bofiracing.co.uk/forced-indu...a-mx-5-na-1-8/

curly 03-25-2024 10:04 PM

Run a NB throttle body. Smaller IAC valve that's all internal, just need to change your TPS and IAC pigtail. If you order a S2 throttle body, get the NA one, and order this adapter: https://www.speedsageengineering.com...b-iacv-adapter

Then you can run your NA TPS/pigtail, an NB IAC, and only change one pigtail. You'll also need to source the IAC of course.

Labora 03-26-2024 09:37 AM

I did a remote IAC on my SC setup, but for you if you could locate the right silicone adapter would be easiest.


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