Intake manifolds for Japanese 01+ 1.8L ???
#21
Elite Member
iTrader: (1)
Join Date: Jun 2006
Location: Warrington/Birmingham
Posts: 2,642
Total Cats: 42
![Default](https://www.miataturbo.net/images/icons/icon1.gif)
Don't think there is one? Though I'm not au-fait with the MK2.5 motor so may well have missed it. I'll have a proper look tomorrow evening, I need to strip bits off it ready for install onto my car.
#23
Elite Member
Thread Starter
iTrader: (12)
Join Date: Sep 2007
Location: Charlotte, NC
Posts: 6,850
Total Cats: 71
![Default](https://www.miataturbo.net/images/icons/icon1.gif)
So by what I could find, all VVT equipped 1.8L engines that were not sold in the US market came with this intake manifold.
Dammit, I want one. Be easier than pulling mine apart and gutting the butterflies. I'm going to see if I can get a part number tomorrow...and a price.
Dammit, I want one. Be easier than pulling mine apart and gutting the butterflies. I'm going to see if I can get a part number tomorrow...and a price.
#27
Elite Member
Thread Starter
iTrader: (12)
Join Date: Sep 2007
Location: Charlotte, NC
Posts: 6,850
Total Cats: 71
![Default](https://www.miataturbo.net/images/icons/icon1.gif)
Title over picture...
this is the 1.6
![](http://www.carsensor.net/CSphoto/ml/508/U00003250815_9.jpg)
I don't really know much about the 1.6 engine at all. I have wondered if they updated the later 1.6 with solid lifters though (anyone know?) It looks like a completely different beast... CAS is on the front of the CAM cover like the 99/00 1.8L, no weird IAC stuck to the side of the manifold. I'd imagine the later 1.6 intake flows better considering how Mazda revised the 1.8 I don't see why they wouldn't revise the 1.6 knowing that it was going to be sold in large numbers for years to come.
this is the 1.6
![](http://www.carsensor.net/CSphoto/ml/508/U00003250815_9.jpg)
I don't really know much about the 1.6 engine at all. I have wondered if they updated the later 1.6 with solid lifters though (anyone know?) It looks like a completely different beast... CAS is on the front of the CAM cover like the 99/00 1.8L, no weird IAC stuck to the side of the manifold. I'd imagine the later 1.6 intake flows better considering how Mazda revised the 1.8 I don't see why they wouldn't revise the 1.6 knowing that it was going to be sold in large numbers for years to come.
#28
Elite Member
iTrader: (1)
Join Date: Jun 2006
Location: Warrington/Birmingham
Posts: 2,642
Total Cats: 42
![Default](https://www.miataturbo.net/images/icons/icon1.gif)
Cracked open the manifold.
There's no VICS, VTCS nothing, just an empty plenum.
![Name: IMG_0391.jpg
Views: 399
Size: 98.9 KB](https://www.miataturbo.net/attachments/engine-performance-56/201300d1501243554-intake-manifolds-japanese-01-1-8l-img_0391.jpg)
![Name: IMG_0392.jpg
Views: 346
Size: 123.5 KB](https://www.miataturbo.net/attachments/engine-performance-56/201301d1501243554-intake-manifolds-japanese-01-1-8l-img_0392.jpg)
![Name: IMG_0393.jpg
Views: 345
Size: 97.9 KB](https://www.miataturbo.net/attachments/engine-performance-56/201302d1501243554-intake-manifolds-japanese-01-1-8l-img_0393.jpg)
![Name: IMG_0394.jpg
Views: 369
Size: 91.8 KB](https://www.miataturbo.net/attachments/engine-performance-56/201303d1501243554-intake-manifolds-japanese-01-1-8l-img_0394.jpg)
Garage is lit only with fluorescent tubes and so lighting wasn't great. Plus it's my iPhone taking the pictures. Last pic I had a torch trying to light up the insides
There's no VICS, VTCS nothing, just an empty plenum.
![Name: IMG_0391.jpg
Views: 399
Size: 98.9 KB](https://www.miataturbo.net/attachments/engine-performance-56/201300d1501243554-intake-manifolds-japanese-01-1-8l-img_0391.jpg)
![Name: IMG_0392.jpg
Views: 346
Size: 123.5 KB](https://www.miataturbo.net/attachments/engine-performance-56/201301d1501243554-intake-manifolds-japanese-01-1-8l-img_0392.jpg)
![Name: IMG_0393.jpg
Views: 345
Size: 97.9 KB](https://www.miataturbo.net/attachments/engine-performance-56/201302d1501243554-intake-manifolds-japanese-01-1-8l-img_0393.jpg)
![Name: IMG_0394.jpg
Views: 369
Size: 91.8 KB](https://www.miataturbo.net/attachments/engine-performance-56/201303d1501243554-intake-manifolds-japanese-01-1-8l-img_0394.jpg)
Garage is lit only with fluorescent tubes and so lighting wasn't great. Plus it's my iPhone taking the pictures. Last pic I had a torch trying to light up the insides
#31
Elite Member
iTrader: (7)
Join Date: Jan 2008
Location: Statesville, NC
Posts: 2,739
Total Cats: 319
![Default](https://www.miataturbo.net/images/icons/icon1.gif)
![](http://www.mx5.com.au/nsw/images/engine.jpg)
Emilio said that the TB has less obstructed flow to the plenum, possibly making more power. I think he's putting it on the OGK but he'd need to verify that.
I wonder how hard it would be to get ahold of this manifold.
#32
Elite Member
Thread Starter
iTrader: (12)
Join Date: Sep 2007
Location: Charlotte, NC
Posts: 6,850
Total Cats: 71
![Default](https://www.miataturbo.net/images/icons/icon1.gif)
I'm already working on this. If there is even a slight benefit to be had, I'd imagine many of us here would be interested and so would those guys the run things like CSP class autoX.
I wonder if the runners are a different diameter as well, they look bigger. And if anything, the reduced mass saves a little weight as well.
I wonder if the runners are a different diameter as well, they look bigger. And if anything, the reduced mass saves a little weight as well.
#33
Elite Member
iTrader: (7)
Join Date: Jan 2008
Location: Statesville, NC
Posts: 2,739
Total Cats: 319
![Default](https://www.miataturbo.net/images/icons/icon1.gif)
Yeah, basically all of the top CSP cars don't use IRTBs. They run the stock manifold. If there was gains on this manifold they would definately jump on it. At least I would lol.
Let us know if you find any "hook-ups" for this manifold.
Let us know if you find any "hook-ups" for this manifold.
#36
Elite Member
iTrader: (2)
Join Date: Jan 2007
Location: Los Angeles, CA
Posts: 8,682
Total Cats: 130
![Default](https://www.miataturbo.net/images/icons/icon1.gif)
Awwwwwwww *****!!! Phat JDM manifoldd yo!
Why do we care? I can't see the big awesome plenum. Wait, there is none.
This is cool buttfuck where the hell is a good 1.8 aftermarket manifold? Should I be inspired by the engineering fail pdf and make one out of a 2 liter bottle and pvc pipe? That would work actually wouldn't it...
Why do we care? I can't see the big awesome plenum. Wait, there is none.
This is cool buttfuck where the hell is a good 1.8 aftermarket manifold? Should I be inspired by the engineering fail pdf and make one out of a 2 liter bottle and pvc pipe? That would work actually wouldn't it...
#37
![Default](https://www.miataturbo.net/images/icons/icon1.gif)
Title over picture...
this is the 1.6
I don't really know much about the 1.6 engine at all. I have wondered if they updated the later 1.6 with solid lifters though (anyone know?) It looks like a completely different beast... CAS is on the front of the CAM cover like the 99/00 1.8L, no weird IAC stuck to the side of the manifold. I'd imagine the later 1.6 intake flows better considering how Mazda revised the 1.8 I don't see why they wouldn't revise the 1.6 knowing that it was going to be sold in large numbers for years to come.
this is the 1.6
I don't really know much about the 1.6 engine at all. I have wondered if they updated the later 1.6 with solid lifters though (anyone know?) It looks like a completely different beast... CAS is on the front of the CAM cover like the 99/00 1.8L, no weird IAC stuck to the side of the manifold. I'd imagine the later 1.6 intake flows better considering how Mazda revised the 1.8 I don't see why they wouldn't revise the 1.6 knowing that it was going to be sold in large numbers for years to come.
![facepalm](https://www.miataturbo.net/images/smilies/facepalm.gif)
#38
2 Props,3 Dildos,& 1 Cat
![](/mt2011/images_td/ranks/supporter1.gif)
![](/mt2011/images_td/ranks/smod.png)
iTrader: (8)
Join Date: Jun 2005
Location: Fake Virginia
Posts: 19,338
Total Cats: 573
![Default](https://www.miataturbo.net/images/icons/icon1.gif)
so we can compare like this:
99-00 VICS manifold:
![](http://fixjunk.com/solomiata/solomiata2/99intakeManifold.jpg)
2001+ VTCS manifold:
![](http://fixjunk.com/solomiata/solomiata2/01intake2001.jpg)
2001+ RS/JDM/non USDM manifold with nothing:
[insert richyvrlimited picture here]