3 Intake Manifolds 2 Prices You decide
 

Intake manifold without independent throttles $619

Intake manifold with AE series throttle support and you buy your own throttles. $619

Intake manifold with Boundary Engineering Oval Throttles $759

All Carbon fiber plenums good to 400*F and 3 Bar

1 can be upgraded to 3 with the purchase of another flange with throttles.

We will only be making 2 molds for these. One for the 94-97 and one for the 99-up. Options 1 and 3 use the same plenum. Option 2 uses a different plenum.

Vote now, and tell me what you want. In 5 weeks they'll be here for the 94-97 and 99-up.

Can you better describe these? I don't know what the differences are. So the first one has no throttle? Does it use a regular throttle body? No idea about 2. 3 I would guess has the individual throttles like your prototype?

All the plenums have built into them provisions for a single throttle body system. If you dont use the provision (your using multiple throttles) you just get a pipe adapter where you can bolt up your pipe coupling. If you are using the single throttle option it will work with the stock throttle, but I've also got something coming out soon that will blow your mind with throttle bodies that supports airflow to 600 hp easy. Its not just bigger, its better.

no 1.6l?
 

No 1.6l option? Oh well, I guess I'll just go with a custom one.

http://www.xcessivemanufacturing.com.../UI-VSP4-2.jpg

Xcessive Manufacturing

http://www.xcessivemanufacturing.com...-EFP-Q45-2.jpg

Xcessive Manufacturing

These should make a good beginning.

No 1.6 CF intake? I'm pissed :vash:

Vash-

Yea, looks like a good idea. I know you guys already have a couple of intake manifolds out, and I don't have the 1.6L head to pull off yet another bolt and port pattern. The setup for just one of the intake manifold flanges past the amount of hours it costs me is around 3k for the CNC coding and tooling. The molds are 5k a piece, its alot of money to go into a market that has alot of competition.

If I get 10 commited 1.6L guys I might entertain it. Jeeze, I didn't know there were that many hanging around.

What kind of benefits are you expecting to see versus the oem manifold? Is something worthwhile for low boost applications?

Who makes a 1.6l IM??? Begi makes a 1.8l one. Both 1.6 and 1.8 have a few ITB setups for them. I haven't found any IM for a 1.6, and I have LOOKED EVERYWHERE.

So can you explain option 2 please? What's an AE throttle?

I got this one.

The ITB setup that came on the 4AGE AE86/AE101 cars.

Wow, you got it before I did SV ;) eBay Motors: Mazda MX-5 Miata 1.6l intake manifold B6 1992 up MX5 (item 350154912285 end time Feb-16-09 21:29:54 PST)

Its going in there anyways!

The manifolds are designed for the guys making somewhere south of 400 whp and on a not massively modded head. If you have alot of mods to your head, and your flowing incredible amounts of air at high rpm then you can benifit from larger runners.

Generally the torque shift will be up by 500 rpms, and extend and enhance your power band to 8000 rpm. As soon as the turbo spools you'll see a power increase over stock.

I might would be interested in the first one. I'd like to see the finished product tested first though before I jumped. IE-dyno results of before/after showing torque enhanced in the upper RPMs. Not that I could afford one till this summer anyway. Hopefully by then it will be tested and we'll know how well it works.

I do have extensive headwork though, so how would it work on these? What kind of runner length, diameter, and plenum volume does the new IM have?

Your asking for the secret sauce Pat.

The head work is only going to really effect you if your pushing the limits I was talking about. The runners flow far far more then head at even pressure drop. Once you get to about 280-300 CFM of head flow the intake manifold becomes a limit again. With an optimized manifold for 500 plus horsepower you can probably net another 3-5 percent over the current design.

With this design you should easily get 15 percent at 8000 RPM, at atleast 10 percent at 7000, at peak torque 7-8 percent at eqaul boost.

This isn't a commitment I just want to know what direction you guys would prefer.

Hmmm. Well, how about this: Is the plenum volume greater than 1.8L? Comparable to stock? Anything? Also, any flow numbers on a stock 99' head? I'm sure I added 50cfm or so to stock at peak lift. Dunno it that would put me to 280 or not. Guess I'll have to wait till there's some flow data or real world before/after dyno results.

Much larger then the 1.8L plenum that is for sure. The numbers will be here soon enough.

Let me rephrase my question:

A GOOD IM for a 1.6l? Ebay crap is just, well, crap.

+1

Seller is in Bangkok and has "nos" in his name...

Would you 1.6 owners quit bitchin? BEGi is making manis for you. If you all pony up I'm sure Travis will too. You're just not first in line this time, deal with it.

Actually, it was on the home page when I looked.

BEGi - - Front Page News - 1.6L_IntakeManifold

Still not done, but they are at least working on it. I'm wondering why there are no velocity stacks in the Begi one.

But for the 1.8l guys:

Intake Manifolds - BEGi

Already have them for the 1.8l, and have had them for a little while.

Interesting. +1 on 1.6 manifolds. Although I wouldn't be able to pony up for one now, it is something I would be interested in later on.

Ill take a 1.8L 99 FI manifold, and if you want a tester i'll buy a Manifold and Adaptronic Standalone If the price is right! I voted for the Intake manifold with Boundary Engineering Oval Throttles for $759

Will the manifolds have provisions for IAC, EGR and all that other good stuff? OBD-II compliance would be a huge bonus.

Yea I will be building that in. I just hope they don't pop the hood at the emissions center. A big chunk of shiny carbon fiber probably isn't going to cut it for emissions. :giggle: I appreciate the offer WRC, when I get there I'll send you an email.

I'm interested in one for use with a Single Throttle Body.

i would rater raise the boost 1 psi than spend $700 on an intake.

Well then this manifold definitely is not for you. This manifold is for people who rather increase the flow, lower boost, lower intake temps AND increase HP. And of course those of us who are beyond the flow capabilities of the stock manifolds.

I've seen the 3d image on your website, and I think the image in my head is gonna be different than the final product. I pictured an enclosed carbon manifold leading to a single opening for a throttle body mount. I think i'm kind of stupid. I imagined bolting my throttle body to carbon fiber. :bang:

Travis, maybe you can clarify some things for me or you can tell me to just be patient and wait for pictures.

Will the BE manifold with oval throttles be enclosed and lead to a single throttle or will it be enclosed with multiple throttles?

If it's ITB's, what brand would you be using?

I'm really looking forward to seeing more pictures to get a better idea of what to expect.

This was covered earlier in the thread. The BE throttle butterflies are built into the base of each runner. If you look at the base you'll see the throttle plate shaft sticking out. At least that's what I understood?:eek5:

Travis: Still on track for the 5 week mark for these? And any update on the Timing Kits?

We are on track for 5 weeks so far. Timing kits are being tested. I'm willing to sell engineering samples at 300 for the whole kit. I have one set of engineering samples left.

Yeah, it was covered. I went back and read the thread. disregard my noobness :bang:

So this week is week 5, just curious if your getting your prototype finished up or its going to be longer. I'm interested to see a real life pic!

What Throttle Body bolt pattern are you making for this? Will it only fit a stock throttle body or are you making it for something larger, like a 70mm mustang TB?

Fact checker :giggle:

I'm expecting flashy carbon by the end of next week.
I have something I'm making, but what I'll probably do is just tube the manifold out to a 2.5in and then let people silicon clamp on different adapters that I CNC machine. That gives a little flexibility in the throttle location, and you don't have to make a different manifold for every variant. So one will fit the stock throttle body, one will fit a mustang throttle, and then for the IRTB guys you just attach your turbohose instead of a throttle body adapter.

Just to clarify here when I mean silicoln clamp on I mean your going to have a material interface between the manifold and the adapter. Then a silicoln clamp air seals the joint and keeps everything rigid. Its not like a limp noodle throttle mount.

Great :bigtu: how is the CNC work going on the actual IRTB's?:eek4dance

Voted Option #3 but will it work for RHD (clearance for master cylinders etc)?

That part is easy, its built right into the flange. You'll love how its setup once you see it. The butterfly is as close to the head as possible and it actually hangs into the port when open. I suspect the non-ITB version will be available first though, it is the easiest.

I don't know, you'll have to give it a spin to see. I would not think you would run into problems though the plenum is not huge and its not that close to the firewall. If the stock manifold fits over there this will too.

So Travis,

Do you have an estimated completion time for the ITB kits to be available?

I'll really know at the end of this next upcomming week where we stand.

Just FYI, I just ran the tape measure over bits in the engine bay and it looks something like this in RHD form....

http://memimage.cardomain.com/ride_i...0056_large.jpg

Red bit = Brake master cylinder and pipeage
Blue bit = Clutch master cylinder
Grey bit = Enginey stuff (measured from top of intake manifold face on head)

Make it fit dammit! ;):bigtu:

Travis, just curious what you plan for MAP/IAT mounting for both the FI IRTB and non FI IRTB setups? Didn't cross my mind til I looked at the renderings again.

I've got a vacuum box that will handle that and the MAP sensor routing. On the ITB cars there will be a barb plumbed into the bottom of each port, and on the non ITB cars it will more then likely be plumbed into the throttle body adapter plate, though I haven't drawn those adapter plates yet so we'll see.

We need to get to looking at it from an engine management perspective to as you can't run a MAP vs RPM table with ITBs. You have to run MAP X TPS vs RPM. The Adaptronic is capable, but I'm not sure about the MS, Hydra, AEM, Xede or anything else.

Sounds good, As long as the Adaptronic is capable that's what I was planning to run anyways. Everyone with other forms of engine management will have to chime in I guess

I'm subscribing to see if you offer 1.6 IRTB version (building a high-comp 1.7L all-motor engine).

Currently have the Fuji IRTBs and might be willing to make the change to these very nicely thought out ITB manifold/setups!

Dang it, might be interested in option 3

Updates? :laugh:

..... I got the NB intake cam gear designed... Does that count? ;)

Seriously, I missed my price point, so i redesigned the flange, and we're in the process of another build. The carbon part didn't change, but its still under development.

I guess that will do for now :)

This will be on my short list for sure. Would it be cheaper to use aluminum instead of the CF? I don't need CF bling necessarily.

CF actually makes it cheaper to get the perfect design for incredible flow numbers, and I got it figured out. We're back in the game on this. It was the flange that got expensive, the 4rth axis stuff can just kill your intended price if you are not careful.

So any projected time line for production?

Really, what has kept us from going forward on this is the cam gears and the ignition system. Once you see those get out of the way, this comes together really fast.

You need a IRTB/CAM GEAR/IGNITION/ADAPTRONIC mega package group buy when your done LOL!

Bump for updates. Also, how big are the velocity stacks going to be?

If they were absolutely any bigger they would touch. I don't want to spill any more rendered pictures, only product! Which will be here soon.

Ugh I am getting ancy. Any updates? How about an approximate ETA?

Coming but not here yet.

If only this were made in aluminum... Nice work as always Travis!

If I made it in aluminum it would be 5-10 times as heavy, prone to cracking at the welds, and I couldn't hold the tolerence between production runs to .002 inches. You could also never get the same shape I made with aluminum. It would cost 1000's upon 1000's of dollars per a unit. You will be amazed when you see this thing. The clouds will split open, and angels will cry. :giggle: