our first ported oem intake manifold
 

Well here is a 94-97 intake manifold that was donated by one of the members on here Thanks!

first cut open. The EGR really destroys the inside huh!?
https://www.miataturbo.net/attachmen...ine=1320287604
https://www.miataturbo.net/attachmen...ine=1320287604

removed the EGR tunnel. It consumed a large amount of volume, removig this helped increase the internal volume size.
https://www.miataturbo.net/attachmen...ine=1320287604
https://www.miataturbo.net/attachmen...ine=1320287604

This is it before it gets welded. This was without the thermal ceramic coating option.
https://www.miataturbo.net/attachmen...ine=1320287604
https://www.miataturbo.net/attachmen...ine=1320287604
https://www.miataturbo.net/attachmen...ine=1320287604
https://www.miataturbo.net/attachmen...ine=1320287604

Overall as you can see the last cylinder on the right is the largest hurdle in this intake manifold design. We plan on giving this to a member who whats to try it out and tell us how much better the car feels and responds. We do tons of port work daily and this one was alot of fun, we know we definitively made improvements to the manifold. with as many different manifolds that we have done we know what works and does not.

I will try it out

How about a 99-00 intake.

I have a 01-05 I can donate to let you try working on.

Wow didnt know mazda made such a horrible design on the 4th piston.

Yea that wasn't the best solution on Mazda's part there or more efficient ways to mount the EGR devices.

For the few different styles of OEM manifolds we are willing to port them out. PM us and we will discuss what were looking for. We really only need one of each.

PM's sent

Doppelgänger! Your not excepting PM's so feel free to contact us. We can get everything sorted out.

Thanks.

I've got a 99 intake to donate if needed.

Edit: also have a 94-97 as well. Both ready to ship.

I'd like to see what you can do with a '99 intake, lots of unnecessary material in there.

I would love to try that out.

that's not a 1.6L IM :) that's a 94-97.

Does the 90-93 have egr

No.

I've got the 99 and an 01 Euro manifold ready to go.

didn't think so, i didn't remember seeing any of the normal stuff when i had mine off. but i also have the memory of a goldfish

If you DO do a 99-00 intake manifold, I'm curious to see how you deal with the VICS resonance chamber. completely removing it might be a mistake depending on the end goals of the car.

I don't want the VICS chamber removed or butterflies disabled on my 99 manifold. However if someone has another manifold to donate to the cause, and if Brandon wants to port it, I can back to back test various configurations.

I do want the VTCS system removed on the 01 manifold. EGR too, especially if it looks silly like the pictured NA8 manifold.

here's some good reference info:
http://forum.miata.net/vb/showpost.p...9&postcount=17

https://www.miataturbo.net/attachmen...ine=1320336754

https://www.miataturbo.net/attachmen...ine=1320336754

in for 99 results. may go this route, would be more simple than honda intake mani

Simple and OEM! Cant go wrong there!

PM sent :)