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-   Engine Performance (https://www.miataturbo.net/engine-performance-56/)
-   -   New Miata Junk 2 Intake (https://www.miataturbo.net/engine-performance-56/new-miata-junk-2-intake-94571/)

yossi126 Sep 26, 2017 04:13 PM

Flat top is around 10 kilos, not lbs.

HarryB Sep 26, 2017 05:09 PM

Definitely not. Packed up (in a pretty hefty box with TONS of packing and padding material) came up less than 8kg, no TB or brace, so I assume that 12lbs should be about right.

yossi126 Sep 26, 2017 05:33 PM

8 kilos is still 17 lbs but hell let's all enjoy the flat top goodness :)

damir130 Sep 26, 2017 05:41 PM

You might want to re-weigh the flat-top yossi. I literally weighed the two halves of the manifold on a kitchen scale half an hour ago. No other stuff connected to the manifold which might make a small difference (EGR valve etc), but it seemed to me that that would be most relevant comparison.

yossi126 Sep 26, 2017 05:48 PM

Hmm so maybe the post office charged me based on volumetric weights... I'll have to check again once I get hold of more of these.

Lokiel Sep 26, 2017 06:19 PM


Originally Posted by aidandj (Post 1442039)
Any way to adapt the stock brace?

https://cimg6.ibsrv.net/gimg/www.mia...e5c5699ea1.jpg

From this shot it looks like a custom brace mounted to the two side bolts on runner #1 could work (maybe even use the other one on the front too?

My first mod though would be to grind off the branding "mount" - it ruins the "organic look" of the manifold and adds lightness.

LukeG Sep 26, 2017 09:21 PM


Originally Posted by Lokiel (Post 1442064)
From this shot it looks like a custom brace mounted to the two side bolts on runner #1 could work (maybe even use the other one on the front too?

My first mod though would be to grind off the branding "mount" - it ruins the "organic look" of the manifold and adds lightness.

Yeah, it looks hideous.

Stealth97 Sep 26, 2017 09:42 PM

I predict it will outperform the squaretop. worst part of the flat top is the turn in behind the throttle body - which is still far better than the 99 intake, which is horrendous in that area. The skunk is wide open behind the throttle body.

Twibs415 Sep 27, 2017 12:16 AM


Originally Posted by Stealth97 (Post 1442110)
I predict it will outperform the squaretop. worst part of the flat top is the turn in behind the throttle body - which is still far better than the 99 intake, which is horrendous in that area. The skunk is wide open behind the throttle body.

agreed, on a few na8 manifolds i messed with we saw 3-5 hp n/a and about 10hp turbo by clearing the path behind the tb. for boost it will work great but n/a it could be equal or less to the squaretop if the runners are to large.

I want to see what happens after someone ports one of these.

Lokiel Sep 27, 2017 12:41 AM


Originally Posted by Stealth97 (Post 1442110)
I predict it will outperform the squaretop. worst part of the flat top is the turn in behind the throttle body - which is still far better than the 99 intake, which is horrendous in that area. The skunk is wide open behind the throttle body.

Just to illustrate why this is true:

Here's a profile of the flat-top:
https://cimg8.ibsrv.net/gimg/www.mia...4313c3b169.jpg
Note how the TB sits quite low and there's a narrow channel leading up diagonally to the top half of the manifold.

Here's a front-on view of my ported flat-top:
https://cimg9.ibsrv.net/gimg/www.mia...7c2176bfb4.jpg
That channel in the manifold is not as wide as the Skunk2 TB so air is being compressed AND flow redirected.

turbofan Sep 27, 2017 11:26 AM

I want one of these things. Glad y'all are snapping them up so I can see if they're worth it :P

ShaZam508 Sep 29, 2017 06:10 PM

Bought one, who knows when it'll be here... I have a F.M. kit with a GT2560 running MS2. Not sure when it'll all be installed but if I can get a before and after dyno, I will post it up.

Lokiel Sep 29, 2017 07:18 PM


Originally Posted by ShaZam508 (Post 1442926)
Bought one, who knows when it'll be here... I have a F.M. kit with a GT2560 running MS2. Not sure when it'll all be installed but if I can get a before and after dyno, I will post it up.

You'll be waiting until after the middle of October:


SKUNK2-307-10-1000 Skunk2 Ultra Series intake manifold (1994-2005 Miata)
1399.99399.99 BACKORDER The above item is temporarily out of stock until about 10/15/17
FCFS This product is manufactured in limited quantities. Orders will be reserved and fulfilled on a first-come/first-served basis in the sequence that payments are received.
SHIP - Shipping Skunk2 to MiataRoadster

hornetball Sep 29, 2017 09:00 PM

I'm wondering why the mismatch between the throttle body and throat of the intake? Maybe the top of the intake is an off-the-shelf Honda part?

Braineack Sep 29, 2017 09:10 PM

Probably

LukeG Sep 29, 2017 09:46 PM

Haven't seen anyone else dyno test it yet... sounds like marketing fluff though.

"Dyno proven, these will make 10+ HP on NA builds and even more on super charged / turbo charged applications. For even better results, pair with the Skunk2 Alpha series throttle body."

https://www.vividracing.com/blog/ann...miatamanifold/

emilio700 Sep 29, 2017 09:50 PM

Conjecture, rhetoric and hype have always sold more stuff to the American public then science and comparative analysis.

LukeG Sep 29, 2017 09:58 PM


Originally Posted by emilio700 (Post 1442962)
Conjecture, rhetoric and hype have always sold more stuff to the American public then science and comparative analysis.

God bless good marketing!

concealer404 Oct 1, 2017 01:05 PM


Originally Posted by hornetball (Post 1442954)
I'm wondering why the mismatch between the throttle body and throat of the intake? Maybe the top of the intake is an off-the-shelf Honda part?

It is. Matches up better with their 70mm throttles.

Hairdressr Oct 6, 2017 02:46 PM

In for updates on performance.


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