Honda intake manifold
If only it was that simple for ex manis.
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From: Va Beach
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From: Va Beach
No, Waiting for Tyson to set it up. Gonna do a dyno/track combo on a Friday. Hit Japtrix then head out to PBIR.
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Keep me posted on this, i bought another stocker to begin this project. If so, i will sell the stock one, and just drill the blox.
Yea, good and bad news there...
Theres plenty of room to re-drill the new holes on the flange but theres also just too material above the ports and it interferes with the stock injector location. You'd pretty much have to cut away the injector bosses on the manifold and then weld up the roof of each runner in order to make it work.
So its doable, but it definitely wont be the prettiest manifold
Thread Starter
Elite Member
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From: Va Beach
Yea, good and bad news there...
Theres plenty of room to re-drill the new holes on the flange but theres also just too material above the ports and it interferes with the stock injector location. You'd pretty much have to cut away the injector bosses on the manifold and then weld up the roof of each runner in order to make it work.
So its doable, but it definitely wont be the prettiest manifold
Theres plenty of room to re-drill the new holes on the flange but theres also just too material above the ports and it interferes with the stock injector location. You'd pretty much have to cut away the injector bosses on the manifold and then weld up the roof of each runner in order to make it work.
So its doable, but it definitely wont be the prettiest manifold

Last edited by MazDilla; Jun 18, 2010 at 11:06 AM.
This may sound like a really stupid question... but why not just use b16/18 injectors and fuel rail? They are both in the high resistance category (13-ish ohms), and then there would be no fitment issues. B16 injectors can be had in just about any size you could dream of as well and I'm assuming a little plumbing of fuel lines and a simple injector size correction is trivial to most of the people interested in doing this. Or is there something bigger that I'm missing?
This may sound like a really stupid question... but why not just use b16/18 injectors and fuel rail? They are both in the high resistance category (13-ish ohms), and then there would be no fitment issues. B16 injectors can be had in just about any size you could dream of as well and I'm assuming a little plumbing of fuel lines and a simple injector size correction is trivial to most of the people interested in doing this. Or is there something bigger that I'm missing?
It would be good if you wnated to run auxiliary injectors though, especially for you E85 guys
This may sound like a really stupid question... but why not just use b16/18 injectors and fuel rail? They are both in the high resistance category (13-ish ohms), and then there would be no fitment issues. B16 injectors can be had in just about any size you could dream of as well and I'm assuming a little plumbing of fuel lines and a simple injector size correction is trivial to most of the people interested in doing this. Or is there something bigger that I'm missing?
Would be awesome but wont fit. The Miata intake ports don't have the same hump at the top to accommodate the injectors that the honda ports do.
Does anyone know of anyone naturally aspirated who's tried this intake manifold or similar?
In theory the manifold operation doesn't get affected by being boosted or not - IOW the same % topend gains should be visible in an N/A car.
UNLESS... there's a 2rd order effect where the intake runner resonance interacts with an N/A car's exhaust scavenging, which isn't present with turbo cars.
In theory the manifold operation doesn't get affected by being boosted or not - IOW the same % topend gains should be visible in an N/A car.
UNLESS... there's a 2rd order effect where the intake runner resonance interacts with an N/A car's exhaust scavenging, which isn't present with turbo cars.







